PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / 2.0.7
MxChat – AI Chatbot & Content Generation for WordPress v2.0.7
3.2.21 3.2.20 3.2.19 3.2.18 3.2.17 3.2.16 3.2.15 3.2.14 3.2.12 3.2.13 3.2.11 3.2.10 3.2.9 3.2.8 3.2.7 3.2.6 3.2.5 3.2.4 3.2.3 3.2.2 3.2.1 2.0.3 2.0.4 2.0.5 2.0.6 All 152 releases
← All changes | includes/class-mxchat-integrator.php +1561 -8819 3.2.3 → 2.0.7 View file →
@@ -9,80 +9,50 @@
9 9 private $chat_count;
10 10 private $fallbackResponse;
11 11 private $productCardHtml;
12 12 private $word_handler;
13 - private $last_similarity_analysis = null;
14 - private $current_valid_urls = [];
15 - private $last_vectorstore_error = null;
16 - private $is_streaming = false; // ADDED: Track if current request is streaming
17 - private $streaming_headers_sent = false; // Track if streaming headers have been sent
18 13
19 -/**
20 - * Setup streaming headers - call this right before actually streaming
21 - * This delays header setup to allow actions/forms to return JSON responses
22 - */
23 -private function setup_streaming_headers() {
24 - if ($this->streaming_headers_sent || headers_sent()) {
25 - return false;
26 - }
27 -
28 - // Disable output buffering
29 - while (ob_get_level()) {
30 - ob_end_flush();
31 - }
32 -
33 - // Set headers for SSE
34 - header('Content-Type: text/event-stream');
35 - header('Cache-Control: no-cache');
36 - header('Connection: keep-alive');
37 - header('X-Accel-Buffering: no');
38 -
39 - ob_implicit_flush(true);
40 - flush();
41 -
42 - $this->streaming_headers_sent = true;
43 - return true;
44 -}
45 -
46 -/**
47 - * Class constructor
48 - */
49 14 public function __construct() {
50 15 $this->options = get_option('mxchat_options');
51 16 $this->prompts_options = get_option('mxchat_prompts_options', array());
17 +
52 18 $this->chat_count = get_option('mxchat_chat_count', 0);
53 19 $this->word_handler = new MXChat_Word_Handler($this->options);
54 -
55 - // Add all action hooks
20 +
56 21 add_action('wp_enqueue_scripts', array($this, 'mxchat_enqueue_scripts_styles'));
57 22 add_action('wp_ajax_mxchat_handle_chat_request', array($this, 'mxchat_handle_chat_request'));
58 23 add_action('wp_ajax_nopriv_mxchat_handle_chat_request', array($this, 'mxchat_handle_chat_request'));
24 +
59 25 add_action('wp_ajax_mxchat_dismiss_pre_chat_message', array($this, 'mxchat_dismiss_pre_chat_message'));
60 26 add_action('wp_ajax_nopriv_mxchat_dismiss_pre_chat_message', array($this, 'mxchat_dismiss_pre_chat_message'));
61 -
62 27 // Add the AJAX actions for checking if the pre-chat message was dismissed
63 28 add_action('wp_ajax_mxchat_check_pre_chat_message_status', array($this, 'mxchat_check_pre_chat_message_status'));
64 29 add_action('wp_ajax_nopriv_mxchat_check_pre_chat_message_status', array($this, 'mxchat_check_pre_chat_message_status'));
30 +
65 31 add_action('wp_ajax_mxchat_fetch_conversation_history', [$this, 'mxchat_fetch_conversation_history']);
66 32 add_action('wp_ajax_nopriv_mxchat_fetch_conversation_history', [$this, 'mxchat_fetch_conversation_history']);
33 +
67 34 add_action('wp_ajax_mxchat_add_to_cart', [$this, 'mxchat_add_to_cart']);
68 35 add_action('wp_ajax_nopriv_mxchat_add_to_cart', [$this, 'mxchat_add_to_cart']);
69 -
36 +
37 + if (!wp_next_scheduled('mxchat_reset_rate_limits')) {
38 + wp_schedule_event(time(), 'daily', 'mxchat_reset_rate_limits');
39 + }
40 +
70 41 // Add REST API routes registration
71 42 add_action('rest_api_init', array($this, 'register_routes'));
43 +
72 44 add_action('wp_ajax_mxchat_fetch_new_messages', array($this, 'mxchat_fetch_new_messages'));
73 45 add_action('wp_ajax_nopriv_mxchat_fetch_new_messages', array($this, 'mxchat_fetch_new_messages'));
74 -
75 - // Rate limit action - notice we removed the old schedule setup
46 +
76 47 add_action('mxchat_reset_rate_limits', array($this, 'mxchat_reset_rate_limits'));
77 -
78 - // File upload and handling actions
48 +
79 49 add_action('wp_ajax_mxchat_upload_pdf', [$this, 'handle_pdf_upload']);
80 50 add_action('wp_ajax_nopriv_mxchat_upload_pdf', [$this, 'handle_pdf_upload']);
81 51 add_action('wp_ajax_mxchat_remove_pdf', [$this, 'handle_pdf_remove']);
82 52 add_action('wp_ajax_nopriv_mxchat_remove_pdf', [$this, 'handle_pdf_remove']);
83 -
84 - // Word document handling actions
53 +
54 + // Add these with your other add_action hooks
85 55 add_action('wp_ajax_mxchat_upload_word', array($this, 'mxchat_handle_word_upload'));
86 56 add_action('wp_ajax_nopriv_mxchat_upload_word', array($this, 'mxchat_handle_word_upload'));
87 57 add_action('wp_ajax_mxchat_remove_word', array($this, 'mxchat_handle_word_remove'));
88 58 add_action('wp_ajax_nopriv_mxchat_remove_word', array($this, 'mxchat_handle_word_remove'));
@@ -87,63 +57,16 @@
87 57 add_action('wp_ajax_mxchat_remove_word', array($this, 'mxchat_handle_word_remove'));
88 58 add_action('wp_ajax_nopriv_mxchat_remove_word', array($this, 'mxchat_handle_word_remove'));
89 59 add_action('wp_ajax_mxchat_check_word_status', array($this, 'mxchat_check_word_status'));
90 60 add_action('wp_ajax_nopriv_mxchat_check_word_status', array($this, 'mxchat_check_word_status'));
91 -
92 - // Email handling actions
61 +
93 62 add_action('wp_ajax_nopriv_mxchat_handle_save_email_and_response', [$this, 'mxchat_handle_save_email_and_response']);
94 63 add_action('wp_ajax_mxchat_handle_save_email_and_response', [$this, 'mxchat_handle_save_email_and_response']);
95 64 add_action('wp_ajax_nopriv_mxchat_check_email_provided', [$this, 'mxchat_check_email_provided']);
96 65 add_action('wp_ajax_mxchat_check_email_provided', [$this, 'mxchat_check_email_provided']);
97 -
98 - add_action('wp_ajax_mxchat_stream_chat', array($this, 'mxchat_handle_chat_request'));
99 - add_action('wp_ajax_nopriv_mxchat_stream_chat', array($this, 'mxchat_handle_chat_request'));
100 -
101 - // Testing panel AJAX actions
102 - add_action('wp_ajax_mxchat_get_system_info', array($this, 'mxchat_get_system_info'));
103 - add_action('wp_ajax_mxchat_get_similarity_threshold', array($this, 'mxchat_get_similarity_threshold'));
104 - add_action('wp_ajax_mxchat_get_kb_status', array($this, 'mxchat_get_kb_status'));
105 - add_action('wp_ajax_mxchat_start_fresh_session', array($this, 'mxchat_start_fresh_session'));
106 - // Add to your existing constructor, in the section with other AJAX actions:
107 - add_action('wp_ajax_mxchat_track_url_click', array($this, 'mxchat_track_url_click'));
108 - add_action('wp_ajax_nopriv_mxchat_track_url_click', array($this, 'mxchat_track_url_click'));
109 - add_action('wp_ajax_mxchat_track_originating_page', array($this, 'mxchat_track_originating_page'));
110 - add_action('wp_ajax_nopriv_mxchat_track_originating_page', array($this, 'mxchat_track_originating_page'));
111 - // Add chat mode checking actions
112 - add_action('wp_ajax_mxchat_get_current_chat_mode', array($this, 'mxchat_get_current_chat_mode'));
113 - add_action('wp_ajax_nopriv_mxchat_get_current_chat_mode', array($this, 'mxchat_get_current_chat_mode'));
114 -
115 - // Nonce refresh for page-cache compatibility (WP Rocket, LiteSpeed, etc.)
116 - add_action('wp_ajax_mxchat_refresh_nonce', array($this, 'mxchat_refresh_nonce'));
117 - add_action('wp_ajax_nopriv_mxchat_refresh_nonce', array($this, 'mxchat_refresh_nonce'));
118 -
119 - // Auto-email transcript action
120 - add_action('mxchat_send_delayed_transcript', array($this, 'mxchat_send_delayed_transcript'), 10, 1);
121 -
122 - add_filter('mxchat_check_actions_only', array($this, 'check_actions_for_addons'), 10, 4);
123 -
124 -
125 66 }
126 67
127 -/**
128 - * Return a fresh nonce so cached pages can replace the stale one.
129 - */
130 -public function mxchat_refresh_nonce() {
131 - nocache_headers();
132 - wp_send_json_success(array('nonce' => wp_create_nonce('mxchat_chat_nonce')));
133 -}
134 68
135 -// In your core plugin's check_actions_for_addons method:
136 -public function check_actions_for_addons($default, $message, $user_id, $session_id) {
137 - //error_log('MxChat Core: check_actions_for_addons called with message: ' . $message);
138 -
139 - $result = $this->mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id);
140 -
141 - //error_log('MxChat Core: Intent check result = ' . ($result === false ? 'false' : 'true'));
142 -
143 - return $result;
144 -}
145 -
146 69 private function mxchat_increment_chat_count() {
147 70 $chat_count = get_option('mxchat_chat_count', 0);
148 71 $chat_count++;
149 72 update_option('mxchat_chat_count', $chat_count);
@@ -155,22 +78,8 @@
155 78 wp_die();
156 79 }
157 80
158 81 $session_id = sanitize_text_field($_POST['session_id']);
159 -
160 - // SECURITY FIX: Verify session ownership before retrieving data
161 - // If IP/user changed, signal frontend to reset session instead of blocking
162 - $current_user_identifier = MxChat_User::mxchat_get_user_identifier();
163 -
164 - // Check if this session has an owner recorded
165 - $session_owner = get_option("mxchat_session_owner_{$session_id}");
166 -
167 - // Update session owner if it changed (e.g. IP changed due to network switch)
168 - // The session ID itself is the authentication — if the client has it, they own it
169 - if (!$session_owner || $session_owner !== $current_user_identifier) {
170 - update_option("mxchat_session_owner_{$session_id}", $current_user_identifier, 'no');
171 - }
172 -
173 82 $history = get_option("mxchat_history_{$session_id}", []); // Retrieve stored history
174 83 $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai'); // Get current chat mode
175 84
176 85 if (empty($history)) {
@@ -187,25 +96,26 @@
187 96 'chat_mode' => $chat_mode
188 97 ]);
189 98 wp_die();
190 99 }
191 -private function mxchat_fetch_conversation_history_for_ai($session_id, $session_start_timestamp = 0) {
192 - $history = get_option("mxchat_history_{$session_id}", []);
100 +private function mxchat_fetch_conversation_history_for_ajax($session_id) {
101 + $history = get_option("mxchat_history_{$session_id}", []); // Retrieve stored history based on session ID
102 + $formatted_history = [];
193 103
194 - // Check persistence setting - when OFF, only include messages from current page load
195 - $options = get_option('mxchat_options', []);
196 - $persistence_enabled = isset($options['chat_persistence_toggle']) && $options['chat_persistence_toggle'] === 'on';
104 + // Format the history to align with the expected structure for OpenAI
105 + foreach ($history as $entry) {
106 + $formatted_history[] = [
107 + 'role' => $entry['role'], // Ensure this matches 'user' or 'assistant'
108 + 'content' => $entry['content']
109 + ];
110 + }
197 111
198 - // Filter history when persistence is OFF to match what the user sees
199 - if (!$persistence_enabled && $session_start_timestamp > 0) {
200 - $history = array_filter($history, function($entry) use ($session_start_timestamp) {
201 - // Include messages from this page load onwards
202 - return isset($entry['timestamp']) && $entry['timestamp'] >= $session_start_timestamp;
203 - });
204 - // Re-index array after filtering
205 - $history = array_values($history);
206 - }
112 + return $formatted_history;
113 +}
207 114
115 +
116 +private function mxchat_fetch_conversation_history_for_ai($session_id) {
117 + $history = get_option("mxchat_history_{$session_id}", []);
208 118 $formatted_history = [];
209 119
210 120 // Adjusted for code-heavy conversations
211 121 $max_tokens = 120000; // Context window size
@@ -240,9 +150,9 @@
240 150 if (!$has_code && $clean_content !== strip_tags($entry['content'])) {
241 151 continue;
242 152 }
243 153
244 - // More accurate token estimation (1 token ≈ 4 characters)
154 + // More accurate token estimation (1 token ≈ 4 characters)
245 155 $token_estimate = ceil(mb_strlen($clean_content, 'UTF-8') / 4);
246 156
247 157 // Check token budget with the new estimate
248 158 if (($current_token_count + $token_estimate + $reserved_tokens) > $max_tokens) {
@@ -296,22 +206,9 @@
296 206 'methods' => 'POST',
297 207 'callback' => [$this, 'handle_slack_interaction'],
298 208 'permission_callback' => [$this, 'verify_slack_request'],
299 209 ]);
300 -
301 - register_rest_route('mxchat/v1', '/slack-messages', [
302 - 'methods' => 'POST',
303 - 'callback' => [$this, 'handle_slack_messages'],
304 - 'permission_callback' => [$this, 'verify_slack_request'],
305 - ]);
306 210
307 - // Telegram webhook endpoint
308 - register_rest_route('mxchat/v1', '/telegram-webhook', [
309 - 'methods' => 'POST',
310 - 'callback' => [$this, 'handle_telegram_webhook'],
311 - 'permission_callback' => [$this, 'verify_telegram_request'],
312 - ]);
313 -
314 211 //error_log(esc_html__('MxChat REST routes registered', 'mxchat'));
315 212 }
316 213
317 214 /**
@@ -351,11 +248,10 @@
351 248 //error_log(esc_html__('Slack request timestamp too old', 'mxchat'));
352 249 return false;
353 250 }
354 251
355 - // Get raw request body from the WP_REST_Request object
356 - // (php://input may already be consumed by WordPress at this point)
357 - $request_body = $request->get_body();
252 + // Get raw request body
253 + $request_body = file_get_contents('php://input');
358 254
359 255 // Create the signature base string
360 256 $sig_basestring = "v0:{$timestamp}:{$request_body}";
361 257
@@ -364,43 +260,8 @@
364 260
365 261 // Compare signatures
366 262 return hash_equals($my_signature, $slack_signature);
367 263 }
368 -
369 -/**
370 - * Verify request is coming from Telegram.
371 - *
372 - * @param WP_REST_Request $request
373 - * @return bool True if valid, false otherwise.
374 - */
375 -public function verify_telegram_request($request) {
376 - $secret_token = $this->options['telegram_webhook_secret'] ?? '';
377 -
378 - //error_log('[MxChat Telegram DEBUG] verify_telegram_request called');
379 - //error_log('[MxChat Telegram DEBUG] Stored secret: ' . (empty($secret_token) ? 'EMPTY' : substr($secret_token, 0, 10) . '...'));
380 -
381 - if (empty($secret_token)) {
382 - // If no secret is configured, allow the request (for initial setup)
383 - //error_log('[MxChat Telegram DEBUG] No secret configured, allowing request');
384 - return true;
385 - }
386 -
387 - // Telegram sends the secret token in the X-Telegram-Bot-Api-Secret-Token header
388 - $request_token = $request->get_header('X-Telegram-Bot-Api-Secret-Token');
389 -
390 - //error_log('[MxChat Telegram DEBUG] Request token: ' . (empty($request_token) ? 'EMPTY' : substr($request_token, 0, 10) . '...'));
391 -
392 - if (empty($request_token)) {
393 - //error_log('[MxChat Telegram DEBUG] Request rejected: No token in header');
394 - return false;
395 - }
396 -
397 - // Timing-safe comparison
398 - $result = hash_equals($secret_token, $request_token);
399 - //error_log('[MxChat Telegram DEBUG] Token comparison result: ' . ($result ? 'MATCH' : 'MISMATCH'));
400 - return $result;
401 -}
402 -
403 264 public function mxchat_stream_events(WP_REST_Request $request) {
404 265 header('Content-Type: text/event-stream');
405 266 header('Cache-Control: no-cache');
406 267 header('Connection: keep-alive');
@@ -434,45 +295,20 @@
434 295
435 296
436 297
437 298
438 -private function mxchat_save_chat_message($session_id, $role, $message, $originating_page = null, $rag_context = null) {
299 +private function mxchat_save_chat_message($session_id, $role, $message) {
439 300 global $wpdb;
301 +
440 302 $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
441 303 //error_log("[DEBUG] mxchat_save_chat_message -> START for session_id: {$session_id}, role: {$role}");
442 -
443 - // Check if this is the first message in a new session (before any other database operations)
444 - $is_new_session = false;
445 - if ($role === 'user') { // Only check for user messages, not bot responses
446 - $existing_messages = $wpdb->get_var($wpdb->prepare(
447 - "SELECT COUNT(*) FROM $table_name WHERE session_id = %s",
448 - $session_id
449 - ));
450 - $is_new_session = ($existing_messages == 0);
451 -
452 - // Log for debugging
453 - if ($is_new_session) {
454 - //error_log("[DEBUG] This is a NEW session - first message");
455 - }
456 - }
457 -
458 - // SECURITY FIX: Set session ownership for new sessions
459 - if ($is_new_session && $role === 'user') {
460 - $current_user_identifier = MxChat_User::mxchat_get_user_identifier();
461 - $session_owner_key = "mxchat_session_owner_{$session_id}";
462 -
463 - // Only set ownership if not already set
464 - if (!get_option($session_owner_key)) {
465 - update_option($session_owner_key, $current_user_identifier, 'no');
466 - //error_log("[DEBUG] Set session ownership for {$session_id} to {$current_user_identifier}");
467 - }
468 - }
469 -
304 +
470 305 // 1) Extract agent name if present
471 306 $agent_name = '';
472 307 if (preg_match('/^Agent: (.*?) - /', $message, $matches)) {
473 308 $agent_name = $matches[1];
474 309 $message = str_replace("Agent: $agent_name - ", '', $message);
310 +
475 311 $session_meta_key = "mxchat_agent_name_{$session_id}";
476 312 if (empty(get_option($session_meta_key))) {
477 313 update_option($session_meta_key, $agent_name);
478 314 //error_log("[DEBUG] mxchat_save_chat_message -> Stored agent_name in option: {$session_meta_key} => {$agent_name}");
@@ -477,57 +313,42 @@
477 313 update_option($session_meta_key, $agent_name);
478 314 //error_log("[DEBUG] mxchat_save_chat_message -> Stored agent_name in option: {$session_meta_key} => {$agent_name}");
479 315 }
480 316 }
481 -
317 +
482 318 // 2) Generate unique message_id
483 319 $message_id = uniqid();
484 320 //error_log("[DEBUG] mxchat_save_chat_message -> Generated message_id: {$message_id}");
485 -
321 +
486 322 // 3) Determine user_id
487 323 $user_id = is_user_logged_in() ? get_current_user_id() : 0;
488 -
324 +
489 325 // 4) Determine user_identifier
490 326 $user_identifier = $agent_name
491 327 ? $agent_name
492 328 : MxChat_User::mxchat_get_user_identifier();
493 -
329 +
494 330 // 5) Determine displayed_name
495 331 $user_email = MxChat_User::mxchat_get_user_email();
496 332 $displayed_name = $agent_name ? $agent_name : ($user_email ?: $user_identifier);
497 -
333 +
498 334 // 6) Check for a saved email in wp_options
499 335 $email_option_key = "mxchat_email_{$session_id}";
500 336 $saved_email = get_option($email_option_key);
501 337 //error_log("[DEBUG] mxchat_save_chat_message -> Checking wp_options for email_option_key: {$email_option_key}, found: {$saved_email}");
502 -
503 - // Check for a saved name in wp_options
504 - $name_option_key = "mxchat_name_{$session_id}";
505 - $saved_name = get_option($name_option_key);
506 - //error_log("[DEBUG] mxchat_save_chat_message -> Checking wp_options for name_option_key: {$name_option_key}, found: {$saved_name}");
507 -
508 - // If found, update DB user_email and user_name
509 - if ($saved_email || $saved_name) {
510 - $update_data = [];
511 - if ($saved_email) {
512 - $update_data['user_email'] = $saved_email;
513 - }
514 - if ($saved_name) {
515 - $update_data['user_name'] = $saved_name;
516 - }
517 -
518 - if (!empty($update_data)) {
519 - $update_res = $wpdb->update(
520 - $table_name,
521 - $update_data,
522 - ['session_id' => $session_id],
523 - array_fill(0, count($update_data), '%s'),
524 - ['%s']
525 - );
526 - //error_log("[DEBUG] mxchat_save_chat_message -> Attempted DB user_email/user_name update for session_id {$session_id}. update_res: {$update_res}");
527 - }
338 +
339 + // If found, update DB user_email
340 + if ($saved_email) {
341 + $update_res = $wpdb->update(
342 + $table_name,
343 + ['user_email' => $saved_email],
344 + ['session_id' => $session_id],
345 + ['%s'],
346 + ['%s']
347 + );
348 + //error_log("[DEBUG] mxchat_save_chat_message -> Attempted DB user_email update for session_id {$session_id}. update_res: {$update_res}");
528 349 }
529 -
350 +
530 351 // 7) Save to session history in wp_options
531 352 $history_key = "mxchat_history_{$session_id}";
532 353 $history = get_option($history_key, []);
533 354 $history[] = [
@@ -536,351 +357,34 @@
536 357 'content' => $message,
537 358 'timestamp' => round(microtime(true) * 1000),
538 359 'agent_name' => $displayed_name,
539 360 ];
540 - update_option($history_key, $history, 'no');
361 + update_option($history_key, $history);
541 362 //error_log("[DEBUG] mxchat_save_chat_message -> Updated session history in option: {$history_key}");
542 -
363 +
543 364 // 8) Save the message to DB (INSERT)
544 365 $insert_data = [
545 366 'user_id' => $user_id,
546 367 'user_identifier'=> $user_identifier,
547 368 'user_email' => $saved_email ?: $user_email,
548 - 'user_name' => $saved_name ?: '', // Add name to insert data
549 369 'session_id' => $session_id,
550 370 'role' => $role,
551 371 'message' => $message,
552 372 'timestamp' => current_time('mysql', 1),
553 373 ];
554 -
555 - // IMPROVED: Handle originating page data
556 - $columns_exist = $wpdb->get_var("SHOW COLUMNS FROM $table_name LIKE 'originating_page_url'");
557 -
558 - if ($columns_exist) {
559 - if ($is_new_session && $role === 'user') {
560 - // For the first user message, set originating page data
561 -
562 - // First check if we have it from the parameter
563 - if ($originating_page && !empty($originating_page['url'])) {
564 - $insert_data['originating_page_url'] = $originating_page['url'];
565 - $insert_data['originating_page_title'] = $originating_page['title'] ?? '';
566 -
567 - //error_log("[DEBUG] Setting originating page from parameter: " . $originating_page['url']);
568 - }
569 - // Otherwise check if it's stored in the instance property
570 - else if (isset($this->pending_originating_page) && !empty($this->pending_originating_page['url'])) {
571 - $insert_data['originating_page_url'] = $this->pending_originating_page['url'];
572 - $insert_data['originating_page_title'] = $this->pending_originating_page['title'] ?? '';
573 -
574 - //error_log("[DEBUG] Setting originating page from pending_originating_page: " . $this->pending_originating_page['url']);
575 -
576 - // Clear after using
577 - unset($this->pending_originating_page);
578 - }
579 - // Fallback to HTTP_REFERER if nothing else is available
580 - else if (isset($_SERVER['HTTP_REFERER'])) {
581 - $referer_url = esc_url_raw($_SERVER['HTTP_REFERER']);
582 - $insert_data['originating_page_url'] = $referer_url;
583 -
584 - // Generate title from URL
585 - $parsed_url = parse_url($referer_url);
586 - $path = isset($parsed_url['path']) ? trim($parsed_url['path'], '/') : '';
587 -
588 - if (empty($path) || $path === 'index.php' || $path === 'index.html') {
589 - $insert_data['originating_page_title'] = 'Homepage';
590 - } else {
591 - $title = str_replace(['-', '_', '/', '.php', '.html'], ' ', $path);
592 - $insert_data['originating_page_title'] = ucwords(trim($title));
593 - }
594 -
595 - //error_log("[DEBUG] Setting originating page from HTTP_REFERER: " . $referer_url);
596 - }
597 -
598 - // Store for this session so all messages have the same originating page
599 - if (!empty($insert_data['originating_page_url'])) {
600 - update_option("mxchat_originating_page_{$session_id}", [
601 - 'url' => $insert_data['originating_page_url'],
602 - 'title' => $insert_data['originating_page_title']
603 - ], 'no');
604 - }
605 - } else {
606 - // For subsequent messages in the session, use the stored originating page
607 - $stored_originating = get_option("mxchat_originating_page_{$session_id}");
608 - if ($stored_originating && !empty($stored_originating['url'])) {
609 - $insert_data['originating_page_url'] = $stored_originating['url'];
610 - $insert_data['originating_page_title'] = $stored_originating['title'] ?? '';
611 - }
612 - }
613 - }
614 -
615 - // Add RAG context if provided (for bot messages)
616 - if ($rag_context !== null && $role === 'bot') {
617 - $rag_context_column_exists = $wpdb->get_var("SHOW COLUMNS FROM $table_name LIKE 'rag_context'");
618 - if ($rag_context_column_exists) {
619 - $insert_data['rag_context'] = is_array($rag_context) ? wp_json_encode($rag_context) : $rag_context;
620 - }
621 - }
622 -
623 374 $wpdb->insert($table_name, $insert_data);
624 375 //error_log("[DEBUG] mxchat_save_chat_message -> Inserted message into DB. row_id: {$wpdb->insert_id}, data: " . print_r($insert_data, true));
625 -
626 - // 9) Send notification email if this is the first user message in a new session
627 - if ($wpdb->insert_id && $is_new_session && $role === 'user') {
628 - $this->send_new_chat_notification($session_id, array(
629 - 'identifier' => $user_identifier,
630 - 'email' => $saved_email ?: $user_email,
631 - 'ip' => $_SERVER['REMOTE_ADDR']
632 - ));
633 - }
634 -
635 - // 10) Schedule delayed transcript email if enabled and message is from user
636 - if ($wpdb->insert_id && $role === 'user') {
637 - $this->schedule_delayed_transcript_email($session_id);
638 - }
639 -
376 +
640 377 //error_log("[DEBUG] mxchat_save_chat_message -> END for session_id: {$session_id}");
641 378 return $message_id;
642 379 }
643 380
644 -private function send_new_chat_notification($session_id, $user_info = array()) {
645 - $options = get_option('mxchat_transcripts_options');
646 -
647 - // Check if notifications are enabled
648 - if (empty($options['mxchat_enable_notifications'])) {
649 - return false;
650 - }
651 -
652 - // Get notification email
653 - $to = !empty($options['mxchat_notification_email']) ?
654 - $options['mxchat_notification_email'] :
655 - get_option('admin_email');
656 -
657 - if (!is_email($to)) {
658 - return false;
659 - }
660 -
661 - // Prepare email content
662 - $subject = sprintf('[%s] New Chat Session Started', get_bloginfo('name'));
663 -
664 - $user_identifier = isset($user_info['identifier']) ? $user_info['identifier'] : 'Guest';
665 - $user_email = isset($user_info['email']) ? $user_info['email'] : 'Not provided';
666 - $user_ip = isset($user_info['ip']) ? $user_info['ip'] : $_SERVER['REMOTE_ADDR'];
667 -
668 - $message = sprintf(
669 - "A new chat session has started on your website.\n\n" .
670 - "Session ID: %s\n" .
671 - "User: %s\n" .
672 - "Email: %s\n" .
673 - "IP Address: %s\n" .
674 - "Time: %s\n\n" .
675 - "View transcripts: %s",
676 - $session_id,
677 - $user_identifier,
678 - $user_email,
679 - $user_ip,
680 - current_time('mysql'),
681 - admin_url('admin.php?page=mxchat-transcripts')
682 - );
683 -
684 - // Send email
685 - return wp_mail($to, $subject, $message);
686 -}
687 -
688 -/**
689 - * Schedule delayed transcript email for a session
690 - * Reschedules if a new user message is received
691 - */
692 -private function schedule_delayed_transcript_email($session_id) {
693 - $options = get_option('mxchat_transcripts_options');
694 -
695 - // Check if auto-email is enabled
696 - if (empty($options['mxchat_auto_email_transcript_enabled'])) {
697 - return;
698 - }
699 -
700 - // Get notification email
701 - $email = !empty($options['mxchat_notification_email']) ?
702 - $options['mxchat_notification_email'] :
703 - get_option('admin_email');
704 -
705 - if (!is_email($email)) {
706 - return;
707 - }
708 -
709 - // Get delay in minutes (default 30)
710 - $delay_minutes = isset($options['mxchat_auto_email_transcript_delay']) ?
711 - intval($options['mxchat_auto_email_transcript_delay']) : 30;
712 -
713 - // Clear any existing scheduled event for this session
714 - $hook = 'mxchat_send_delayed_transcript';
715 - $args = array($session_id);
716 - $timestamp = wp_next_scheduled($hook, $args);
717 -
718 - if ($timestamp) {
719 - wp_unschedule_event($timestamp, $hook, $args);
720 - }
721 -
722 - // Schedule new event
723 - $schedule_time = time() + ($delay_minutes * 60);
724 - wp_schedule_single_event($schedule_time, $hook, $args);
725 -}
726 -
727 -/**
728 - * Check if chat messages contain contact information (email or phone number)
729 - *
730 - * @param array $messages Array of message objects with 'message' property
731 - * @param object|null $session_data Session data object with user_email property
732 - * @return bool True if contact info found, false otherwise
733 - */
734 -private function chat_contains_contact_info($messages, $session_data = null) {
735 - // Check if session already has a stored email
736 - if ($session_data && !empty($session_data->user_email)) {
737 - return true;
738 - }
739 -
740 - // Email regex pattern
741 - $email_pattern = '/\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b/';
742 -
743 - // Phone number patterns (covers various formats including international, WhatsApp style)
744 - // Matches: +1234567890, (123) 456-7890, 123-456-7890, 123.456.7890, 1234567890, +1 234 567 8900, etc.
745 - $phone_pattern = '/(?:\+?\d{1,3}[-.\s]?)?\(?\d{2,4}\)?[-.\s]?\d{2,4}[-.\s]?\d{2,4}(?:[-.\s]?\d{1,4})?/';
746 -
747 - // Only check user messages (not assistant responses)
748 - foreach ($messages as $msg) {
749 - if ($msg->role !== 'user') {
750 - continue;
751 - }
752 -
753 - $message_text = $msg->message;
754 -
755 - // Check for email
756 - if (preg_match($email_pattern, $message_text)) {
757 - return true;
758 - }
759 -
760 - // Check for phone number (must be at least 7 digits total to avoid false positives)
761 - if (preg_match($phone_pattern, $message_text, $matches)) {
762 - // Count actual digits to avoid matching short numbers
763 - $digits_only = preg_replace('/\D/', '', $matches[0]);
764 - if (strlen($digits_only) >= 7) {
765 - return true;
766 - }
767 - }
768 - }
769 -
770 - return false;
771 -}
772 -
773 -/**
774 - * Send the delayed transcript email with .txt attachment
775 - */
776 -public function mxchat_send_delayed_transcript($session_id) {
777 - global $wpdb;
778 -
779 - $options = get_option('mxchat_transcripts_options');
780 -
781 - // Get notification email
782 - $to = !empty($options['mxchat_notification_email']) ?
783 - $options['mxchat_notification_email'] :
784 - get_option('admin_email');
785 -
786 - if (!is_email($to)) {
787 - return false;
788 - }
789 -
790 - // Get all messages for this session
791 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
792 - $messages = $wpdb->get_results($wpdb->prepare(
793 - "SELECT role, message, timestamp FROM {$table_name}
794 - WHERE session_id = %s
795 - ORDER BY timestamp ASC",
796 - $session_id
797 - ));
798 -
799 - if (empty($messages)) {
800 - return false;
801 - }
802 -
803 - // Get session metadata
804 - $sessions_table = $wpdb->prefix . 'mxchat_sessions';
805 - $session_data = $wpdb->get_row($wpdb->prepare(
806 - "SELECT * FROM {$sessions_table} WHERE session_id = %s",
807 - $session_id
808 - ));
809 -
810 - // Check if contact info is required and if it's present
811 - $require_contact = !empty($options['mxchat_auto_email_transcript_require_contact']);
812 - if ($require_contact && !$this->chat_contains_contact_info($messages, $session_data)) {
813 - // Contact info required but not found - skip sending
814 - return false;
815 - }
816 -
817 - // Build transcript content
818 - $transcript_content = "Chat Transcript\n";
819 - $transcript_content .= "================\n\n";
820 - $transcript_content .= "Session ID: " . $session_id . "\n";
821 -
822 - if ($session_data) {
823 - $transcript_content .= "User: " . ($session_data->user_identifier ?: 'Guest') . "\n";
824 - $transcript_content .= "Email: " . ($session_data->user_email ?: 'Not provided') . "\n";
825 - $transcript_content .= "Started: " . $session_data->created_at . "\n";
826 - }
827 -
828 - $transcript_content .= "\n" . str_repeat("=", 50) . "\n\n";
829 -
830 - // Add messages
831 - foreach ($messages as $msg) {
832 - $role_label = ($msg->role === 'user') ? 'User' : 'Assistant';
833 - $transcript_content .= "[{$msg->timestamp}] {$role_label}:\n";
834 - $transcript_content .= $msg->message . "\n\n";
835 - }
836 -
837 - // Create temporary file for attachment using WP_Filesystem
838 - $upload_dir = wp_upload_dir();
839 - $temp_file = $upload_dir['basedir'] . '/mxchat-transcript-' . $session_id . '.txt';
840 - global $wp_filesystem;
841 - if (empty($wp_filesystem)) {
842 - require_once ABSPATH . 'wp-admin/includes/file.php';
843 - WP_Filesystem();
844 - }
845 - $wp_filesystem->put_contents($temp_file, $transcript_content, FS_CHMOD_FILE);
846 -
847 - // Prepare email
848 - $subject = sprintf('[%s] Chat Transcript - Session %s', get_bloginfo('name'), substr($session_id, 0, 8));
849 -
850 - $message = "Please find attached the full chat transcript.\n\n";
851 - $message .= "Session ID: {$session_id}\n";
852 -
853 - if ($session_data) {
854 - $message .= "User: " . ($session_data->user_identifier ?: 'Guest') . "\n";
855 - $message .= "Email: " . ($session_data->user_email ?: 'Not provided') . "\n";
856 - }
857 -
858 - $message .= "\nView online: " . admin_url('admin.php?page=mxchat-transcripts');
859 -
860 - // Send email with attachment
861 - $attachments = array($temp_file);
862 - $result = wp_mail($to, $subject, $message, '', $attachments);
863 -
864 - // Clean up temporary file
865 - if (file_exists($temp_file)) {
866 - unlink($temp_file);
867 - }
868 -
869 - return $result;
870 -}
871 -
872 -
873 -
874 381 public function mxchat_handle_save_email_and_response() {
875 382 //error_log('[DEBUG] ---------- mxchat_handle_save_email_and_response START ----------');
876 - //error_log('DEBUG: POST data: ' . print_r($_POST, true));
877 383
878 - nocache_headers();
879 -
880 384 // Validate nonce
881 385 if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'mxchat_chat_nonce')) {
882 - //error_log(esc_html__('[ERROR] Invalid nonce in mxchat_handle_save_email_and_response', 'mxchat'));
386 + error_log(esc_html__('[ERROR] Invalid nonce in mxchat_handle_save_email_and_response', 'mxchat'));
883 387 wp_send_json_error(['message' => esc_html__('Invalid nonce.', 'mxchat')]);
884 388 wp_die();
885 389 }
886 390
@@ -885,41 +389,22 @@
885 389 }
886 390
887 391 $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : '';
888 392 $email = isset($_POST['email']) ? sanitize_email($_POST['email']) : '';
889 - $name = isset($_POST['name']) ? sanitize_text_field($_POST['name']) : '';
890 393
891 - //error_log("[DEBUG] handle_save_email_and_response -> session_id: {$session_id}, email: {$email}, name: {$name}");
394 + //error_log("[DEBUG] handle_save_email_and_response -> session_id: {$session_id}, email: {$email}");
892 395
893 - if (empty($session_id) || $session_id === 'null' || empty($email)) {
396 + if (empty($session_id) || empty($email)) {
894 397 //error_log("[ERROR] Missing session_id or email: session_id={$session_id}, email={$email}");
895 398 wp_send_json_error(['message' => esc_html__('Session ID or email is missing.', 'mxchat')]);
896 399 wp_die();
897 400 }
898 401
899 - // Validate name if provided (check if name field is enabled and name is required)
900 - $options = get_option('mxchat_options', []);
901 - $name_field_enabled = isset($options['enable_name_field']) &&
902 - ($options['enable_name_field'] === '1' || $options['enable_name_field'] === 'on');
903 -
904 - if ($name_field_enabled && (empty($name) || strlen(trim($name)) < 2 || strlen(trim($name)) > 100)) {
905 - //error_log("[ERROR] Invalid name: {$name} (enabled: {$name_field_enabled})");
906 - wp_send_json_error(['message' => esc_html__('Name must be between 2 and 100 characters.', 'mxchat')]);
907 - wp_die();
908 - }
402 + // 1) Always store in wp_options
403 + $option_key = "mxchat_email_{$session_id}";
404 + update_option($option_key, $email);
405 + //error_log("[DEBUG] handle_save_email_and_response -> updated option: {$option_key} => {$email}");
909 406
910 - // 1) Always store email in wp_options
911 - $email_option_key = "mxchat_email_{$session_id}";
912 - update_option($email_option_key, $email, 'no');
913 - //error_log("[DEBUG] handle_save_email_and_response -> updated option: {$email_option_key} => {$email}");
914 -
915 - // Store name in wp_options if provided
916 - if (!empty($name)) {
917 - $name_option_key = "mxchat_name_{$session_id}";
918 - update_option($name_option_key, $name, 'no');
919 - //error_log("[DEBUG] handle_save_email_and_response -> updated option: {$name_option_key} => {$name}");
920 - }
921 -
922 407 // 2) (Optional) Also store in DB if a row already exists
923 408 global $wpdb;
924 409 $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
925 410
@@ -929,30 +414,21 @@
929 414
930 415 //error_log("[DEBUG] handle_save_email_and_response -> session_count for {$session_id}: {$session_count} (SQL: {$sql})");
931 416
932 417 if ($session_count) {
933 - // Update both user_email and user_name if row(s) exist
934 - if (!empty($name)) {
935 - $update_sql = $wpdb->prepare(
936 - "UPDATE {$table_name} SET user_email = %s, user_name = %s WHERE session_id = %s",
937 - $email,
938 - $name,
939 - $session_id
940 - );
941 - } else {
942 - $update_sql = $wpdb->prepare(
943 - "UPDATE {$table_name} SET user_email = %s WHERE session_id = %s",
944 - $email,
945 - $session_id
946 - );
947 - }
418 + // Update user_email if row(s) exist
419 + $update_sql = $wpdb->prepare(
420 + "UPDATE {$table_name} SET user_email = %s WHERE session_id = %s",
421 + $email,
422 + $session_id
423 + );
948 424 $wpdb->query($update_sql);
949 425 //error_log("[DEBUG] handle_save_email_and_response -> DB updated: {$update_sql}");
950 426 } else {
951 - //error_log("[INFO] handle_save_email_and_response -> No DB entry for {$session_id}, so email/name is only in wp_options.");
427 + //error_log("[INFO] handle_save_email_and_response -> No DB entry for {$session_id}, so email is only in wp_options.");
952 428 }
953 429
954 - // Provide success response (same as original)
430 + // Provide success response
955 431 $bot_message = __('Thanks for providing your email! You can continue chatting now.', 'mxchat');
956 432 //error_log("[DEBUG] handle_save_email_and_response -> success, returning bot_message: {$bot_message}");
957 433 wp_send_json_success(['message' => $bot_message]);
958 434 wp_die();
@@ -960,10 +436,8 @@
960 436
961 437 public function mxchat_check_email_provided() {
962 438 //error_log('[DEBUG] ---------- mxchat_check_email_provided START ----------');
963 439
964 - nocache_headers();
965 -
966 440 if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'mxchat_chat_nonce')) {
967 441 //error_log('[ERROR] Invalid nonce in mxchat_check_email_provided');
968 442 wp_send_json_error(['message' => esc_html__('Invalid nonce', 'mxchat')]);
969 443 }
@@ -968,9 +442,9 @@
968 442 wp_send_json_error(['message' => esc_html__('Invalid nonce', 'mxchat')]);
969 443 }
970 444
971 445 $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : '';
972 - if (empty($session_id) || $session_id === 'null') {
446 + if (empty($session_id)) {
973 447 //error_log('[ERROR] No session ID provided in mxchat_check_email_provided');
974 448 wp_send_json_error(['message' => esc_html__('No session ID provided', 'mxchat')]);
975 449 }
976 450
@@ -977,82 +451,105 @@
977 451 // Check if the user is logged in
978 452 if (is_user_logged_in()) {
979 453 $current_user = wp_get_current_user();
980 454 //error_log("[DEBUG] User is logged in as {$current_user->user_email}");
981 -
982 - // Get user's display name for logged in users
983 - $user_name = !empty($current_user->display_name) ? $current_user->display_name :
984 - (!empty($current_user->first_name) ? $current_user->first_name : '');
985 -
986 - $response_data = ['logged_in' => true, 'email' => $current_user->user_email];
987 - if (!empty($user_name)) {
988 - $response_data['name'] = $user_name;
989 - }
990 -
991 - wp_send_json_success($response_data);
455 + wp_send_json_success(['logged_in' => true, 'email' => $current_user->user_email]);
992 456 }
993 457
994 - // Check if name field is required
995 - $options = get_option('mxchat_options', []);
996 - $name_field_enabled = isset($options['enable_name_field']) &&
997 - ($options['enable_name_field'] === '1' || $options['enable_name_field'] === 'on');
458 + $option_key = "mxchat_email_{$session_id}";
459 + $stored_email = get_option($option_key, '');
998 460
999 - $email_option_key = "mxchat_email_{$session_id}";
1000 - $stored_email = get_option($email_option_key, '');
1001 -
1002 - // Check for stored name
1003 - $name_option_key = "mxchat_name_{$session_id}";
1004 - $stored_name = get_option($name_option_key, '');
461 + //error_log("[DEBUG] mxchat_check_email_provided -> Checking option: {$option_key}, found: {$stored_email}");
1005 462
1006 - //error_log("[DEBUG] mxchat_check_email_provided -> Checking email option: {$email_option_key}, found: {$stored_email}");
1007 - //error_log("[DEBUG] mxchat_check_email_provided -> Checking name option: {$name_option_key}, found: {$stored_name}, required: " . ($name_field_enabled ? 'yes' : 'no'));
463 + if (!empty($stored_email)) {
464 + //error_log("[DEBUG] mxchat_check_email_provided -> Email found, returning success");
465 + wp_send_json_success(['email' => $stored_email]);
466 + } else {
467 + //error_log("[DEBUG] mxchat_check_email_provided -> No email found, returning error");
468 + wp_send_json_error(['message' => esc_html__('No email found', 'mxchat')]);
469 + }
470 +}
1008 471
1009 - // Check if we have email and name (if name is required)
1010 - $has_required_info = !empty($stored_email);
1011 -
1012 - if ($name_field_enabled) {
1013 - $has_required_info = $has_required_info && !empty($stored_name);
472 +
473 +// First, add this helper function to get the highest rate limit for a user's roles
474 +private function get_user_role_rate_limit($user_id) {
475 + //error_log(esc_html__("Checking rate limit for user ID: ", 'mxchat') . $user_id);
476 +
477 + if (!$user_id) {
478 + //error_log(esc_html__("No user ID provided, using logged-out limit: ", 'mxchat') . ($this->options['rate_limit_logged_out'] ?? '10'));
479 + return $this->options['rate_limit_logged_out'] ?? '10';
1014 480 }
1015 481
1016 - if ($has_required_info) {
1017 - //error_log("[DEBUG] mxchat_check_email_provided -> Required info found, returning success");
1018 -
1019 - $response_data = ['email' => $stored_email];
1020 - if (!empty($stored_name)) {
1021 - $response_data['name'] = $stored_name;
482 + $user = get_userdata($user_id);
483 + if (!$user || !$user->roles) {
484 + //error_log(esc_html__("No user data or roles found, using logged-out limit: ", 'mxchat') . ($this->options['rate_limit_logged_out'] ?? '10'));
485 + return $this->options['rate_limit_logged_out'] ?? '10';
486 + }
487 +
488 + //error_log(esc_html__("User roles: ", 'mxchat') . print_r($user->roles, true));
489 + //error_log(esc_html__("Available role rate limits: ", 'mxchat') . print_r($this->options['role_rate_limits'] ?? [], true));
490 +
491 + $max_limit = 0;
492 + foreach ($user->roles as $role) {
493 + //error_log(esc_html__("Checking limit for role: ", 'mxchat') . $role);
494 + if (isset($this->options['role_rate_limits'][$role])) {
495 + $role_limit = $this->options['role_rate_limits'][$role];
496 + //error_log(esc_html__("Found limit for role ", 'mxchat') . $role . esc_html__(": ", 'mxchat') . $role_limit);
497 +
498 + if ($role_limit === 'unlimited') {
499 + //error_log(esc_html__("Returning unlimited for role: ", 'mxchat') . $role);
500 + return 'unlimited';
501 + }
502 +
503 + $max_limit = max($max_limit, (int)$role_limit);
504 + //error_log(esc_html__("Current max limit: ", 'mxchat') . $max_limit);
505 + } else {
506 + //error_log(esc_html__("No limit found for role: ", 'mxchat') . $role);
1022 507 }
1023 -
1024 - wp_send_json_success($response_data);
1025 - } else {
1026 - //error_log("[DEBUG] mxchat_check_email_provided -> Required info missing, returning error");
1027 - wp_send_json_error(['message' => esc_html__('No email found', 'mxchat')]);
1028 508 }
509 +
510 + $final_limit = $max_limit > 0 ? (string)$max_limit : '100';
511 + //error_log(esc_html__("Final rate limit: ", 'mxchat') . $final_limit);
512 + return $final_limit;
1029 513 }
1030 514
1031 -/**
1032 - * Send error response in appropriate format based on streaming mode
1033 - * ADDED: Helper method to consistently handle errors in both streaming and non-streaming modes
1034 - *
1035 - * @param string $error_message The error message to display
1036 - * @param string $error_code Optional error code for debugging
1037 - */
1038 -private function send_error_response($error_message, $error_code = 'api_error') {
1039 - if ($this->is_streaming) {
1040 - echo "data: " . json_encode([
1041 - 'error' => true,
1042 - 'error_message' => $error_message,
1043 - 'error_code' => $error_code,
1044 - 'text' => $error_message,
1045 - 'message' => $error_message
1046 - ]) . "\n\n";
1047 - echo "data: [DONE]\n\n";
1048 - flush();
1049 - } else {
1050 - wp_send_json_error([
1051 - 'error_message' => $error_message,
1052 - 'error_code' => $error_code
515 +
516 +// Add this to your plugin's main PHP file
517 +public function mxchat_check_new_messages() {
518 + if (!isset($_POST['session_id']) || !isset($_POST['last_seen_id'])) {
519 + wp_send_json_error(['message' => 'Missing required parameters']);
520 + wp_die();
521 + }
522 +
523 + $session_id = sanitize_text_field($_POST['session_id']);
524 + $last_seen_id = sanitize_text_field($_POST['last_seen_id']);
525 +
526 + // Get chat history
527 + $history = get_option("mxchat_history_{$session_id}", []);
528 +
529 + if (empty($history)) {
530 + wp_send_json_success([
531 + 'hasNewMessages' => false,
532 + 'new_messages' => []
1053 533 ]);
534 + wp_die();
1054 535 }
536 +
537 + // Filter new messages
538 + $new_messages = array_filter($history, function($message) use ($last_seen_id) {
539 + return isset($message['id']) && $message['id'] > $last_seen_id;
540 + });
541 +
542 + // Sort by ID to ensure proper order
543 + usort($new_messages, function($a, $b) {
544 + return $a['id'] <=> $b['id'];
545 + });
546 +
547 + wp_send_json_success([
548 + 'hasNewMessages' => !empty($new_messages),
549 + 'new_messages' => array_values($new_messages),
550 + 'latestMessageId' => end($new_messages)['id'] ?? $last_seen_id
551 + ]);
1055 552 wp_die();
1056 553 }
1057 554
1058 555 public function mxchat_handle_chat_request() {
@@ -1057,30 +554,10 @@
1057 554
1058 555 public function mxchat_handle_chat_request() {
1059 556 global $wpdb;
1060 557
1061 - // Debug: Log incoming bot_id
1062 - $bot_id = isset($_POST['bot_id']) ? sanitize_key($_POST['bot_id']) : 'default';
1063 - //error_log("=== MXCHAT DEBUG: Starting chat request ===");
1064 - //error_log("MXCHAT DEBUG: Bot ID received: " . $bot_id);
1065 -
1066 - // Get bot-specific options
1067 - $bot_options = $this->get_bot_options($bot_id);
1068 - $current_options = !empty($bot_options) ? $bot_options : $this->options;
1069 558
1070 - // Check if this is a streaming request
1071 - // Allow force_streaming_test parameter to bypass the setting check (for admin compatibility testing)
1072 - $force_streaming_test = isset($_POST['force_streaming_test']) && $_POST['force_streaming_test'] === '1' && current_user_can('administrator');
1073 - $is_streaming = isset($_POST['action']) && $_POST['action'] === 'mxchat_stream_chat' &&
1074 - ($force_streaming_test || (isset($current_options['enable_streaming_toggle']) && $current_options['enable_streaming_toggle'] === 'on'));
1075 -
1076 - // ADDED: Store streaming state in class property for use in private methods
1077 - $this->is_streaming = $is_streaming;
1078 -
1079 - // NOTE: Streaming headers are now set later via setup_streaming_headers()
1080 - // This allows actions/forms to return JSON responses without header conflicts
1081 -
1082 - // Check if MX Chat Moderation is active
559 + // Check if MX Chat Moderation is active
1083 560 if (class_exists('MX_Chat_Moderation')) {
1084 561 // Get user email and IP
1085 562 $user_email = '';
1086 563 $user_ip = $_SERVER['REMOTE_ADDR'];
@@ -1114,12 +591,14 @@
1114 591 wp_die();
1115 592 }
1116 593 }
1117 594
595 +
596 + // Reset fallback response at the start of each request
1118 597 $this->fallbackResponse = ['text' => '', 'html' => '', 'images' => []];
1119 598 $this->productCardHtml = '';
1120 599
1121 - // Get the actual WordPress user ID if logged in
600 + // Get the actual WordPress user ID if logged in
1122 601 $is_logged_in = is_user_logged_in();
1123 602 if ($is_logged_in) {
1124 603 $user_id = get_current_user_id(); // This will get the actual WordPress user ID
1125 604 } else {
@@ -1129,336 +608,201 @@
1129 608
1130 609 // Get and sanitize the user identifier
1131 610 $user_id = sanitize_key($user_id);
1132 611
1133 - // Check rate limit using new settings structure
1134 - $rate_limit_result = $this->check_rate_limit();
612 + // Determine if user is logged in
613 + $is_logged_in = is_user_logged_in();
614 + //error_log("User logged in status: " . ($is_logged_in ? 'true' : 'false'));
1135 615
1136 - if ($rate_limit_result !== true) {
1137 - wp_send_json([
1138 - 'success' => false,
1139 - 'message' => $rate_limit_result['message'],
1140 - 'status' => 'rate_limit_exceeded'
1141 - ]);
1142 - wp_die();
616 + // Get rate limit based on user status
617 + // Get rate limit based on user status
618 + $rate_limit = $is_logged_in
619 + ? $this->get_user_role_rate_limit($user_id)
620 + : ($this->options['rate_limit_logged_out'] ?? '10');
621 +
622 + //error_log("Selected rate limit: " . $rate_limit);
623 +
624 + // Rest of your code remains the same
625 + // If rate limit is 'unlimited', skip rate limiting checks
626 + if ($rate_limit !== 'unlimited') {
627 + // Convert rate limit to integer
628 + $rate_limit = intval($rate_limit);
629 + // Setup rate limiting
630 + $rate_limit_transient_key = 'mxchat_chat_limit_' . $user_id;
631 + $chat_count = get_transient($rate_limit_transient_key);
632 + if ($chat_count === false) {
633 + // Initialize new counter if none exists
634 + $chat_count = 0;
635 + }
636 + // Check if user has exceeded their rate limit
637 + if ($chat_count >= $rate_limit) {
638 + // Get custom rate limit message or use default
639 + $rate_limit_message = isset($this->options['rate_limit_message'])
640 + ? $this->options['rate_limit_message']
641 + : esc_html__('Rate limit exceeded. Please try again later.', 'mxchat');
642 + // Replace placeholder if it exists in the message
643 + $rate_limit_message = str_replace(
644 + array('{limit}', '{count}', '{remaining}'),
645 + array($rate_limit, $chat_count, max(0, $rate_limit - $chat_count)),
646 + $rate_limit_message
647 + );
648 + wp_send_json([
649 + 'success' => false,
650 + 'message' => $rate_limit_message,
651 + 'status' => 'rate_limit_exceeded',
652 + 'limit' => $rate_limit,
653 + 'count' => $chat_count
654 + ]);
655 + wp_die();
656 + }
657 + // Increment the counter
658 + $chat_count++;
659 + // Store the updated count with 24-hour expiration
660 + set_transient($rate_limit_transient_key, $chat_count, DAY_IN_SECONDS);
1143 661 }
1144 662
1145 663 // Rest of your existing code...
1146 664 $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : '';
665 + //error_log("Session ID: $session_id");
1147 666
1148 - // Treat the literal strings 'null' / 'undefined' as missing too. Browser edge cases
1149 - // (Safari ITP, private mode, cross-origin iframes with partitioned storage) can cause
1150 - // the frontend FormData.append() to stringify a null session_id into the literal
1151 - // "null", which would otherwise pass empty() and pollute the transcripts table with
1152 - // ghost sessions that group every visitor's first message under one row.
1153 - if ($session_id === 'null' || $session_id === 'undefined') {
1154 - $session_id = '';
1155 - }
1156 -
1157 667 if (empty($session_id)) {
668 + //error_log("Error: Session ID is missing.");
1158 669 wp_send_json_error(esc_html__('Session ID is missing.', 'mxchat'));
1159 670 wp_die();
1160 671 }
1161 672
1162 - // Update session owner if it changed (e.g. IP changed due to network switch)
1163 - // The session ID itself is the authentication — if the client has it, they own it
1164 - $current_user_identifier = MxChat_User::mxchat_get_user_identifier();
1165 - $session_owner = get_option("mxchat_session_owner_{$session_id}");
1166 -
1167 - if (!$session_owner || $session_owner !== $current_user_identifier) {
1168 - update_option("mxchat_session_owner_{$session_id}", $current_user_identifier, 'no');
1169 - }
1170 -
1171 673 // Validate and sanitize the incoming message
1172 674 if (empty($_POST['message'])) {
675 + //error_log("Error: No message received.");
1173 676 wp_send_json_error(esc_html__('No message received.', 'mxchat'));
1174 677 wp_die();
1175 678 }
1176 -
1177 -
1178 - // Track originating page for first message in session
1179 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
1180 679
1181 - // Check if originating page columns exist
1182 - $columns_exist = $wpdb->get_var("SHOW COLUMNS FROM $table_name LIKE 'originating_page_url'");
1183 680
1184 - if ($columns_exist) {
1185 - // Check if this session already has messages
1186 - $message_count = $wpdb->get_var($wpdb->prepare(
1187 - "SELECT COUNT(*) FROM $table_name WHERE session_id = %s",
1188 - $session_id
1189 - ));
1190 -
1191 - // If this is the first message in the session
1192 - if ($message_count == 0) {
1193 - // Get originating page from JavaScript (preferred) or HTTP_REFERER (fallback)
1194 - $originating_url = '';
1195 - $originating_title = '';
1196 -
1197 - // Try to get from POST data first (sent by JavaScript)
1198 - if (isset($_POST['current_page_url'])) {
1199 - $originating_url = esc_url_raw($_POST['current_page_url']);
1200 - $originating_title = isset($_POST['current_page_title'])
1201 - ? sanitize_text_field($_POST['current_page_title'])
1202 - : '';
1203 - }
1204 - // Fallback to HTTP_REFERER if not provided by JavaScript
1205 - else if (isset($_SERVER['HTTP_REFERER'])) {
1206 - $originating_url = esc_url_raw($_SERVER['HTTP_REFERER']);
1207 - }
1208 -
1209 - // Generate title if we have URL but no title
1210 - if ($originating_url && empty($originating_title)) {
1211 - $parsed_url = parse_url($originating_url);
1212 - $path = isset($parsed_url['path']) ? trim($parsed_url['path'], '/') : '';
1213 -
1214 - if (empty($path) || $path === 'index.php' || $path === 'index.html') {
1215 - $originating_title = 'Homepage';
1216 - } else {
1217 - // Clean up the path to make a readable title
1218 - $originating_title = str_replace(['-', '_', '/', '.php', '.html'], ' ', $path);
1219 - $originating_title = ucwords(trim($originating_title));
1220 - }
1221 - }
1222 -
1223 - // Store for later use when saving the message
1224 - $this->pending_originating_page = [
1225 - 'url' => $originating_url,
1226 - 'title' => $originating_title
1227 - ];
1228 - }
1229 - }
1230 -
1231 -
681 +// Modify the message sanitization to preserve PHP tags in code blocks
682 +$allowed_tags = [
683 + 'pre' => [],
684 + 'code' => ['class' => true],
685 + 'span' => ['class' => true],
686 + 'div' => ['class' => true],
687 +];
1232 688
1233 - // Get page context if provided
1234 - $page_context = null;
1235 - if (isset($_POST['page_context']) && !empty($_POST['page_context'])) {
1236 - $page_context_raw = stripslashes($_POST['page_context']);
1237 - $page_context = json_decode($page_context_raw, true);
1238 -
1239 - // Validate page context structure
1240 - if (is_array($page_context) &&
1241 - isset($page_context['url']) &&
1242 - isset($page_context['title']) &&
1243 - isset($page_context['content'])) {
1244 -
1245 - // Sanitize page context
1246 - $page_context['url'] = esc_url_raw($page_context['url']);
1247 - $page_context['title'] = sanitize_text_field($page_context['title']);
1248 - $page_context['content'] = wp_kses_post($page_context['content']);
1249 - } else {
1250 - $page_context = null;
1251 - }
1252 - }
689 +// First preserve code blocks
690 +$message = preg_replace_callback('/<pre><code.*?>.*?<\/code><\/pre>/s', function($matches) {
691 + return htmlspecialchars_decode($matches[0]);
692 +}, $_POST['message']);
1253 693
1254 - // Modify the message sanitization to preserve PHP tags in code blocks
1255 - $allowed_tags = [
1256 - 'pre' => [],
1257 - 'code' => ['class' => true],
1258 - 'span' => ['class' => true],
1259 - 'div' => ['class' => true],
1260 - ];
694 +// Then apply sanitization
695 +$message = wp_kses($message, $allowed_tags);
1261 696
1262 - // First preserve code blocks
1263 - $message = preg_replace_callback('/<pre><code.*?>.*?<\/code><\/pre>/s', function($matches) {
1264 - return htmlspecialchars_decode($matches[0]);
1265 - }, $_POST['message']);
697 +// Decode code blocks
698 +$message = preg_replace_callback('/(&lt;pre&gt;&lt;code.*?&gt;.*?&lt;\/code&gt;&lt;\/pre&gt;)/s', function($matches) {
699 + return htmlspecialchars_decode($matches[1]);
700 +}, $message);
1266 701
1267 - // Then apply sanitization
1268 - $message = wp_kses($message, $allowed_tags);
702 +$message = trim($message);
1269 703
1270 - // Preserve code blocks from markdown conversion
1271 - $message = preg_replace('/```(\w+)?\s*([\s\S]+?)```/s', '<pre><code class="$1">$2</code></pre>', $message);
1272 - $message = apply_filters('mxchat_filter_message', $message, 'prompt', $session_id);
704 +// Preserve code blocks from markdown conversion
705 +$message = preg_replace('/```(\w+)?\s*([\s\S]+?)```/s', '<pre><code class="$1">$2</code></pre>', $message);
1273 706
1274 - // ===== SIMPLIFIED TESTING PANEL INITIALIZATION =====
1275 - // Always initialize testing data for admins (no toggle needed)
1276 - $testing_data = null;
1277 - if (current_user_can('administrator')) {
1278 - // For vision messages, use the original user message for the query display
1279 - $query_for_testing = $message;
1280 - if (isset($_POST['vision_processed']) && $_POST['vision_processed'] && isset($_POST['original_user_message'])) {
1281 - $query_for_testing = sanitize_textarea_field($_POST['original_user_message']);
1282 - }
1283 -
1284 - $testing_data = [
1285 - 'query' => $query_for_testing,
1286 - 'timestamp' => time(),
1287 - 'top_matches' => [],
1288 - 'action_matches' => [], // Initialize action matches array
1289 - 'page_context' => $page_context, // Include page context in testing data
1290 - 'is_vision' => isset($_POST['vision_processed']) && $_POST['vision_processed'],
1291 - 'bot_id' => $bot_id // Include bot ID in testing data
1292 - ];
1293 -
1294 - // Get similarity threshold from bot options or default options
1295 - $similarity_threshold = isset($current_options['similarity_threshold'])
1296 - ? ((int) $current_options['similarity_threshold']) / 100
1297 - : 0.35;
1298 -
1299 - $testing_data['similarity_threshold'] = $similarity_threshold;
1300 -
1301 - // Determine knowledge base type using bot-specific config
1302 - $bot_pinecone_config = $this->get_bot_pinecone_config($bot_id);
1303 - $use_pinecone = isset($bot_pinecone_config['use_pinecone']) ? $bot_pinecone_config['use_pinecone'] : false;
1304 - $testing_data['knowledge_base_type'] = $use_pinecone ? 'Pinecone' : 'WordPress Database';
1305 - }
1306 - // ===== END SIMPLIFIED TESTING INITIALIZATION =====
707 +// Check if any add-ons want to pre-process this message (for web search etc.)
708 +$pre_processed_result = apply_filters('mxchat_pre_process_message', $message, $user_id, $session_id);
1307 709
1308 - // Add debug before and after:
1309 - //error_log('MxChat Core: About to call mxchat_pre_process_message filter with message: ' . $message);
1310 - $pre_processed_result = apply_filters('mxchat_pre_process_message', $message, $user_id, $session_id);
1311 - //error_log('MxChat Core: Filter returned: ' . (is_array($pre_processed_result) ? 'array' : $pre_processed_result));
710 +// If the pre-processing returned a result (not the original message), use it directly
711 +if (is_array($pre_processed_result) && isset($pre_processed_result['text'])) {
712 + // Save the AI response
713 + $this->mxchat_save_chat_message($session_id, 'bot', $pre_processed_result['text']);
714 +
715 + // Save HTML content if provided
716 + if (!empty($pre_processed_result['html'])) {
717 + $this->mxchat_save_chat_message($session_id, 'bot', $pre_processed_result['html']);
718 + }
719 +
720 + // Return the response
721 + wp_send_json([
722 + 'text' => $pre_processed_result['text'],
723 + 'html' => $pre_processed_result['html'] ?? '',
724 + 'session_id' => $session_id
725 + ]);
726 + wp_die();
727 +}
1312 728
729 + // Save the user's message
730 + $this->mxchat_save_chat_message($session_id, 'user', $message);
1313 731
1314 - // If the pre-processing returned a result (not the original message), use it directly
1315 - if (is_array($pre_processed_result) && isset($pre_processed_result['text'])) {
1316 - // Save the AI response
1317 - $this->mxchat_save_chat_message($session_id, 'bot', $pre_processed_result['text']);
1318 -
1319 - // Save HTML content if provided
1320 - if (!empty($pre_processed_result['html'])) {
1321 - $this->mxchat_save_chat_message($session_id, 'bot', $pre_processed_result['html']);
1322 - }
1323 -
1324 - // Add testing data if admin
1325 - $response_data = [
1326 - 'text' => $pre_processed_result['text'],
1327 - 'html' => $pre_processed_result['html'] ?? '',
1328 - 'session_id' => $session_id
1329 - ];
1330 -
1331 - if ($testing_data !== null) {
1332 - $response_data['testing_data'] = $testing_data;
1333 - }
1334 -
1335 - wp_send_json($response_data);
1336 - wp_die();
1337 - }
732 + // Check if the message is an email address
733 + if (is_email($message)) {
734 + // Add the email to Loops
735 + $this->add_email_to_loops($message);
1338 736
1339 - // Save the user's message - handle vision processed messages differently
1340 - if (isset($_POST['vision_processed']) && $_POST['vision_processed'] && isset($_POST['original_user_message'])) {
1341 - // For vision messages, save the original user message with image indicator
1342 - $original_message = sanitize_textarea_field($_POST['original_user_message']);
1343 - if (isset($_POST['vision_images_count']) && $_POST['vision_images_count'] > 0) {
1344 - $image_count = intval($_POST['vision_images_count']);
1345 - $original_message .= " [{$image_count} image(s)]";
1346 - }
1347 - $this->mxchat_save_chat_message($session_id, 'user', $original_message);
1348 - } else {
1349 - // Regular message - save as normal
1350 - $this->mxchat_save_chat_message($session_id, 'user', $message);
1351 - }
737 + // Send success response
738 + $response_message = $this->options['email_capture_response'] ??
739 + esc_html__('Thank you! Your coupon is on the way!', 'mxchat');
1352 740
1353 -
1354 - if (is_email($message)) {
1355 - // Add the email to Loops
1356 - $this->add_email_to_loops($message);
1357 -
1358 - // Get the user's success message instruction using current_options
1359 - $user_success_message = $current_options['email_capture_response'] ?? __('Thank you for providing your email! You\'ve been added to our list.', 'mxchat');
1360 -
1361 - // Set instruction for AI using the user's success message
1362 - $this->current_action_instruction = $user_success_message;
1363 -
1364 - // Clear the email capture transient since we got the email
1365 - delete_transient('mxchat_email_capture_' . $user_id);
1366 - }
1367 -
1368 - // Check if we're in an email capture flow but user hasn't provided email yet
1369 - elseif (get_transient('mxchat_email_capture_' . $user_id)) {
1370 - // Check if the message contains an email (not the whole message being an email)
1371 - if (preg_match('/\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b/', $message, $matches)) {
1372 - $extracted_email = $matches[0];
1373 -
1374 - // Add the extracted email to Loops
1375 - $this->add_email_to_loops($extracted_email);
1376 -
1377 - // Get the user's success message instruction using current_options
1378 - $user_success_message = $current_options['email_capture_response'] ?? __('Thank you for providing your email! You\'ve been added to our list.', 'mxchat');
1379 -
1380 - // Set instruction for AI using the user's success message
1381 - $this->current_action_instruction = $user_success_message;
1382 -
1383 - // Clear the email capture transient since we got the email
1384 - delete_transient('mxchat_email_capture_' . $user_id);
1385 - }
1386 - // If no email found but we're in capture mode, remind them
1387 - else {
1388 - // Get the original instruction to remind them using current_options
1389 - $original_instruction = $current_options['triggered_phrase_response'] ?? __("Please provide your email address.", 'mxchat');
1390 - $this->current_action_instruction = $original_instruction;
1391 - }
1392 - }
741 + wp_send_json([
742 + 'success' => true,
743 + 'status' => 'email_captured',
744 + 'message' => $response_message
745 + ]);
746 + wp_die();
747 + }
1393 748
1394 - $intent_info = '';
749 + $intent_info = '';
1395 750
1396 - // Check chat mode
1397 - $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai');
751 + // Check chat mode
752 + $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai');
753 + //error_log("Chat Mode: $chat_mode");
1398 754
1399 - // Handle agent mode
1400 755 // Handle agent mode
1401 - if ($chat_mode === 'agent') {
1402 - // First, check for switch intent before doing anything else
1403 - $intent_matched = $this->mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id);
756 + if ($chat_mode === 'agent') {
757 + // First, check for switch intent before doing anything else
758 + $intent_matched = $this->mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id);
1404 759
1405 - // Capture action analysis for testing panel after intent check
1406 - if ($testing_data !== null && isset($this->last_action_analysis) && !empty($this->last_action_analysis)) {
1407 - $testing_data['action_matches'] = $this->last_action_analysis;
1408 - }
1409 -
1410 - // Around line 506, in the agent mode handling section:
1411 - if ($intent_matched && !empty($this->fallbackResponse['text'])) {
1412 - // Update chat mode first
1413 - update_option("mxchat_mode_{$session_id}", 'ai');
1414 -
1415 - // Clear any existing PDF context to start fresh
1416 - $this->clear_pdf_transients($session_id);
1417 -
1418 - // Prepare clean switch response with explicit chat_mode
1419 - $response_data = [
1420 - 'text' => $this->fallbackResponse['text'],
1421 - 'html' => $this->fallbackResponse['html'] ?? '',
1422 - 'session_id' => $session_id,
1423 - 'chat_mode' => 'ai' // EXPLICITLY SET THIS
1424 - ];
1425 -
1426 - if ($testing_data !== null) {
1427 - $response_data['testing_data'] = $testing_data;
1428 - }
1429 -
1430 - // Save the mode switch message
1431 - $this->mxchat_save_chat_message($session_id, 'system', esc_html__('Switched to AI chat mode', 'mxchat'));
1432 - $this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['text']);
1433 -
1434 - // Send response and exit
1435 - wp_send_json($response_data);
1436 - wp_die();
1437 - } elseif (!$intent_matched) {
1438 - // No intent matched, handle live agent message
1439 - try {
1440 - $this->mxchat_send_user_message_to_agent($message, $user_id, $session_id);
760 + // If we matched an intent and it's the switch intent, handle it
761 + if ($intent_matched && !empty($this->fallbackResponse['text'])) {
762 + //error_log("Switch to chatbot intent detected");
1441 763
1442 - $agent_response = [
1443 - 'status' => 'waiting_for_agent',
1444 - 'message' => esc_html__('Message sent to live agent.', 'mxchat')
1445 - ];
1446 -
1447 - if ($testing_data !== null) {
1448 - $agent_response['testing_data'] = $testing_data;
1449 - }
764 + // Update chat mode first
765 + update_option("mxchat_mode_{$session_id}", 'ai');
1450 766
1451 - wp_send_json_success($agent_response);
1452 - } catch (\Exception $e) {
1453 - wp_send_json_error(esc_html__('Failed to send message to agent', 'mxchat'));
1454 - }
1455 - wp_die();
767 + // Clear any existing PDF context to start fresh
768 + $this->clear_pdf_transients($session_id);
769 +
770 + // Prepare clean switch response
771 + $response_data = [
772 + 'text' => $this->fallbackResponse['text'],
773 + 'html' => '',
774 + 'session_id' => $session_id,
775 + 'chat_mode' => 'ai'
776 + ];
777 +
778 + // Save the mode switch message
779 + $this->mxchat_save_chat_message($session_id, 'system', esc_html__('Switched to AI chat mode', 'mxchat'));
780 + $this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['text']);
781 +
782 + // Send response and exit
783 + wp_send_json($response_data);
784 + wp_die();
785 + } elseif (!$intent_matched) {
786 + // No intent matched, handle live agent message
787 + try {
788 + $this->mxchat_send_user_message_to_agent($message, $user_id, $session_id);
789 + //error_log("Message sent to agent.");
790 +
791 + wp_send_json_success([
792 + 'status' => 'waiting_for_agent',
793 + 'message' => esc_html__('Message sent to live agent.', 'mxchat')
794 + ]);
795 + } catch (\Exception $e) {
796 + //error_log("Error sending message to agent: " . $e->getMessage());
797 + wp_send_json_error(esc_html__('Failed to send message to agent', 'mxchat'));
1456 798 }
799 + wp_die();
1457 800 }
801 + }
1458 802
1459 803 // Step 1: Check for new PDF URL in the message
1460 - if (!isset($_POST['vision_processed']) && preg_match('/https?:\/\/[^\s"]+/i', $message, $matches)) {
804 + if (preg_match('/https?:\/\/[^\s"]+/i', $message, $matches)) {
1461 805 $new_pdf_url = $matches[0];
1462 806
1463 807 // Check if this is likely a PDF-related request
1464 808 $pdf_keywords = ['pdf', 'document', 'read', 'analyze'];
@@ -1480,15 +824,15 @@
1480 824
1481 825 // Clear previous PDF transients
1482 826 $this->clear_pdf_transients($session_id);
1483 827
1484 - // Process new PDF using current_options
1485 - $max_pages = $current_options['pdf_max_pages'] ?? 69;
828 + // Process new PDF
829 + $max_pages = $this->options['pdf_max_pages'] ?? 69;
1486 830 $embeddings = $this->fetch_and_split_pdf_pages($new_pdf_url, $max_pages);
1487 831
1488 832 if ($embeddings === 'too_many_pages') {
1489 833 $error_text = sprintf(
1490 - $current_options['pdf_intent_error_text'] ??
834 + $this->options['pdf_intent_error_text'] ??
1491 835 esc_html__("The provided PDF exceeds the maximum allowed limit of %d pages. Please provide a smaller document.", 'mxchat'),
1492 836 $max_pages
1493 837 );
1494 838 $this->fallbackResponse['text'] = $error_text;
@@ -1493,13 +837,15 @@
1493 837 );
1494 838 $this->fallbackResponse['text'] = $error_text;
1495 839 } elseif ($embeddings) {
1496 840 // Store new PDF information
841 + // Create a more meaningful filename from URL
1497 842 $pdf_filename = basename(parse_url($new_pdf_url, PHP_URL_PATH));
1498 843
1499 - // If the filename is generic, create a more descriptive one
844 + // If the filename is generic (like results_download.php), create a more descriptive one
1500 845 if (in_array($pdf_filename, ['results_download.php', 'download.php', 'view.php', 'pdf.php']) ||
1501 846 strpos($pdf_filename, '.php') !== false) {
847 + // Create a timestamp-based name
1502 848 $pdf_filename = 'Document_' . date('Y-m-d_H-i') . '.pdf';
1503 849 }
1504 850
1505 851 set_transient('mxchat_pdf_url_' . $session_id, $new_pdf_url, HOUR_IN_SECONDS);
@@ -1506,257 +852,77 @@
1506 852 set_transient('mxchat_pdf_filename_' . $session_id, $pdf_filename, HOUR_IN_SECONDS);
1507 853 set_transient('mxchat_pdf_embeddings_' . $session_id, $embeddings, HOUR_IN_SECONDS);
1508 854 set_transient('mxchat_include_pdf_in_context_' . $session_id, true, HOUR_IN_SECONDS);
1509 855
1510 - $success_text = $current_options['pdf_intent_success_text'] ??
856 + $success_text = $this->options['pdf_intent_success_text'] ??
1511 857 esc_html__("I've processed the new PDF '{$pdf_filename}'. What questions do you have about it?", 'mxchat');
1512 858
1513 - $pdf_response = [
859 + // Return success with filename for UI update
860 + wp_send_json([
1514 861 'success' => true,
1515 862 'message' => $success_text,
1516 863 'data' => [
1517 864 'filename' => $pdf_filename
1518 865 ]
1519 - ];
1520 -
1521 - if ($testing_data !== null) {
1522 - $pdf_response['testing_data'] = $testing_data;
1523 - }
1524 -
1525 - wp_send_json($pdf_response);
866 + ]);
1526 867 wp_die();
1527 868 } else {
1528 - $error_text = $current_options['pdf_intent_error_text'] ??
869 + $error_text = $this->options['pdf_intent_error_text'] ??
1529 870 esc_html__("Sorry, I couldn't process the PDF. Please ensure it's a valid file.", 'mxchat');
1530 871 $this->fallbackResponse['text'] = $error_text;
1531 872 }
1532 873
1533 - $pdf_error_response = [
874 + wp_send_json([
1534 875 'success' => false,
1535 876 'message' => $this->fallbackResponse['text']
1536 - ];
1537 -
1538 - if ($testing_data !== null) {
1539 - $pdf_error_response['testing_data'] = $testing_data;
1540 - }
1541 -
1542 - wp_send_json($pdf_error_response);
877 + ]);
1543 878 wp_die();
1544 879 }
1545 880 }
1546 881 }
1547 882
883 + // Step 2: Detect intent and handle intent-based responses
884 + $intent_matched = $this->mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id);
885 + //error_log("Intent Matched: " . ($intent_matched ? "Yes" : "No"));
1548 886
1549 - // Step 2: Detect intent and handle intent-based responses
1550 - $intent_result = $this->mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id);
887 + // Step 3: If intent is matched and handled, respond immediately
888 + if ($intent_matched && (!empty($this->fallbackResponse['text']) || !empty($this->fallbackResponse['html']))) {
889 + //error_log("Intent response triggered.");
890 + $response_data = [
891 + 'text' => $this->fallbackResponse['text'],
892 + 'html' => $this->fallbackResponse['html'],
893 + 'session_id' => $session_id
894 + ];
895 + $this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['text'] . $this->fallbackResponse['html']);
896 + wp_send_json($response_data);
897 + wp_die();
898 + }
1551 899
1552 - // Capture action analysis for testing panel after intent check
1553 - if ($testing_data !== null && isset($this->last_action_analysis) && !empty($this->last_action_analysis)) {
1554 - $testing_data['action_matches'] = $this->last_action_analysis;
1555 - }
900 + // If no intent matched or product not found, proceed with AI response
901 + //error_log("No matching intent or fallback. Generating AI response.");
1556 902
1557 - // Step 3: Handle the intent result appropriately
1558 - if ($intent_result !== false) {
1559 - // Intent was matched - ALWAYS send as JSON response, never streaming
1560 -
1561 - if (is_array($intent_result) && (isset($intent_result['text']) || isset($intent_result['html']))) {
1562 - // Intent returned a direct response array
1563 - $response_data = [
1564 - 'text' => $intent_result['text'] ?? '',
1565 - 'html' => $intent_result['html'] ?? '',
1566 - 'session_id' => $session_id
1567 - ];
903 + // Step 4: Generate AI response
904 + $conversation_history = $this->mxchat_fetch_conversation_history_for_ai($session_id);
905 + $this->mxchat_increment_chat_count();
1568 906
1569 - // IMPORTANT: Include chat_mode if present (for WhatsApp, Slack, etc.)
1570 - if (isset($intent_result['chat_mode'])) {
1571 - $response_data['chat_mode'] = $intent_result['chat_mode'];
1572 - }
907 + // Generate embedding for the user's query
908 + $user_message_embedding = $this->mxchat_generate_embedding($message, $this->options['api_key']);
909 + if (!is_array($user_message_embedding)) {
910 + //error_log("Failed to generate message embedding for session $session_id");
911 + wp_send_json_error(esc_html__('Error processing your message.', 'mxchat'));
912 + wp_die();
913 + }
1573 914
1574 - if ($testing_data !== null) {
1575 - $response_data['testing_data'] = $testing_data;
1576 - }
915 + // Build context with both knowledge base and PDF content if available
916 + $context_content = "User asked: '{$message}'\n\n";
1577 917
1578 - wp_send_json($response_data);
1579 - wp_die();
1580 - } else if ($intent_result === true && (!empty($this->fallbackResponse['text']) || !empty($this->fallbackResponse['html']))) {
1581 - // Intent returned true and set fallbackResponse
918 + // Get relevant content from knowledge base
919 + $relevant_content = $this->mxchat_find_relevant_content($user_message_embedding);
920 + if (!empty($relevant_content)) {
921 + $context_content .= "Relevant content from knowledge database:\n" . $relevant_content . "\n\n";
922 + }
1582 923
1583 - // SAVE TO TRANSCRIPT
1584 - if (!empty($this->fallbackResponse['text'])) {
1585 - $this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['text']);
1586 - }
1587 - // Save action HTML (product cards, featured products, etc.) so it renders in transcripts
1588 - if (!empty($this->fallbackResponse['html'])) {
1589 - $this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['html']);
1590 - }
1591 924
1592 - $response_data = [
1593 - 'text' => $this->fallbackResponse['text'] ?? '',
1594 - 'html' => $this->fallbackResponse['html'] ?? '',
1595 - 'session_id' => $session_id
1596 - ];
1597 -
1598 - if (isset($this->fallbackResponse['chat_mode'])) {
1599 - $response_data['chat_mode'] = $this->fallbackResponse['chat_mode'];
1600 - }
1601 -
1602 - if ($testing_data !== null) {
1603 - $response_data['testing_data'] = $testing_data;
1604 - }
1605 -
1606 - wp_send_json($response_data);
1607 - wp_die();
1608 - }
1609 - }
1610 -
1611 - // If we get here, no intent matched OR the intent didn't provide a usable response
1612 -
1613 - // Step 4: Generate AI response
1614 - // Get session start timestamp - when persistence is OFF, only include messages from this page load
1615 - $session_start_timestamp = isset($_POST['session_start_timestamp']) ? intval($_POST['session_start_timestamp']) : 0;
1616 - $conversation_history = $this->mxchat_fetch_conversation_history_for_ai($session_id, $session_start_timestamp);
1617 - $this->mxchat_increment_chat_count();
1618 -
1619 - // Generate embedding for the user's query - USE BOT-SPECIFIC API KEY
1620 - $api_key = $current_options['api_key'] ?? $this->options['api_key'];
1621 - $user_message_embedding = $this->mxchat_generate_embedding($message, $api_key);
1622 -
1623 - // Check if the embedding generation returned an error
1624 - if (is_array($user_message_embedding) && isset($user_message_embedding['error'])) {
1625 - $error_message = $user_message_embedding['error'];
1626 - $error_code = $user_message_embedding['error_code'] ?? 'embedding_error';
1627 -
1628 - // FIXED: Send error in appropriate format based on streaming mode
1629 - if ($is_streaming) {
1630 - echo "data: " . json_encode([
1631 - 'error' => true,
1632 - 'error_message' => $error_message,
1633 - 'error_code' => $error_code,
1634 - 'text' => $error_message,
1635 - 'message' => $error_message
1636 - ]) . "\n\n";
1637 - echo "data: [DONE]\n\n";
1638 - flush();
1639 - } else {
1640 - wp_send_json_error([
1641 - 'error_message' => $error_message,
1642 - 'error_code' => $error_code
1643 - ]);
1644 - }
1645 - wp_die();
1646 - }
1647 -
1648 - // Check if the embedding is valid
1649 - if (!is_array($user_message_embedding) || empty($user_message_embedding)) {
1650 - $error_message = esc_html__('Unable to process your message. The embedding service is not responding correctly.', 'mxchat');
1651 -
1652 - // FIXED: Send error in appropriate format based on streaming mode
1653 - if ($is_streaming) {
1654 - echo "data: " . json_encode([
1655 - 'error' => true,
1656 - 'error_message' => $error_message,
1657 - 'error_code' => 'invalid_embedding',
1658 - 'text' => $error_message,
1659 - 'message' => $error_message
1660 - ]) . "\n\n";
1661 - echo "data: [DONE]\n\n";
1662 - flush();
1663 - } else {
1664 - wp_send_json_error([
1665 - 'error_message' => $error_message,
1666 - 'error_code' => 'invalid_embedding'
1667 - ]);
1668 - }
1669 - wp_die();
1670 - }
1671 -
1672 - // Build context with both knowledge base and PDF content if available
1673 - $context_content = "User asked: '{$message}'\n\n";
1674 -
1675 - // Add action instruction if present (add this right after the above line)
1676 - if (!empty($this->current_action_instruction)) {
1677 - $context_content .= "===== SPECIAL INSTRUCTION =====\n";
1678 - $context_content .= "IMPORTANT: " . $this->current_action_instruction . "\n";
1679 - $context_content .= "Respond naturally and conversationally while following this instruction.\n";
1680 - $context_content .= "===== END SPECIAL INSTRUCTION =====\n\n";
1681 -
1682 - // Clear the instruction after using it
1683 - $this->current_action_instruction = null;
1684 - }
1685 -
1686 -
1687 - // Add page context if available and contextual awareness is enabled using current_options
1688 - if ($page_context && isset($current_options['contextual_awareness_toggle']) && $current_options['contextual_awareness_toggle'] === 'on') {
1689 - $context_content .= "===== CURRENT PAGE CONTEXT =====\n";
1690 - $context_content .= "Page URL: " . $page_context['url'] . "\n";
1691 - $context_content .= "Page Title: " . $page_context['title'] . "\n";
1692 - $context_content .= "Page Content: " . $page_context['content'] . "\n";
1693 - $context_content .= "===== END CURRENT PAGE CONTEXT =====\n\n";
1694 - }
1695 -
1696 - // Get relevant content from knowledge base - PASS BOT_ID and MESSAGE for Vector Store
1697 - $relevant_content = $this->mxchat_find_relevant_content($user_message_embedding, $bot_id, $message);
1698 -
1699 - // NEW: Also extract URLs from system instructions (only if citation links enabled)
1700 - // Use fresh options to ensure we get the latest setting value
1701 - $fresh_options = get_option('mxchat_options', []);
1702 - $citation_links_enabled = isset($fresh_options['citation_links_toggle']) ? ($fresh_options['citation_links_toggle'] === 'on') : true;
1703 -
1704 - $system_instructions = $this->get_system_instructions($bot_id, $session_id);
1705 - if ($citation_links_enabled && !empty($system_instructions)) {
1706 - preg_match_all(
1707 - '#\bhttps?://[^\s<>"\']+#i',
1708 - $system_instructions,
1709 - $system_instruction_urls
1710 - );
1711 -
1712 - if (!empty($system_instruction_urls[0])) {
1713 - // Merge with existing valid URLs
1714 - $this->current_valid_urls = array_merge(
1715 - $this->current_valid_urls,
1716 - $system_instruction_urls[0]
1717 - );
1718 - // Remove duplicates
1719 - $this->current_valid_urls = array_unique($this->current_valid_urls);
1720 -
1721 - //error_log("Added " . count($system_instruction_urls[0]) . " URLs from system instructions");
1722 - }
1723 - }
1724 -
1725 -// ===== CAPTURE REAL SIMILARITY DATA FOR ADMINS =====
1726 -if ($testing_data !== null && $this->last_similarity_analysis !== null) {
1727 - // Update testing data with the REAL similarity analysis
1728 - $testing_data['top_matches'] = $this->last_similarity_analysis['top_matches'];
1729 - $testing_data['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0;
1730 - $testing_data['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'];
1731 - $testing_data['sources_used'] = $this->last_similarity_analysis['sources_used'] ?? 0;
1732 - $testing_data['total_chunks_used'] = $this->last_similarity_analysis['total_chunks_used'] ?? 0;
1733 -}
1734 -// ===== END SIMILARITY DATA CAPTURE =====
1735 -
1736 -// NEW: Add valid URLs to testing data for admin panel display (AFTER similarity data)
1737 -if ($testing_data !== null && !empty($this->current_valid_urls)) {
1738 - $testing_data['approved_urls'] = array_values($this->current_valid_urls);
1739 - //error_log("Added " . count($this->current_valid_urls) . " approved URLs to testing data");
1740 -}
1741 -
1742 - if (!empty($relevant_content)) {
1743 - $context_content .= "===== OFFICIAL KNOWLEDGE DATABASE CONTENT =====\n" . $relevant_content . "\n===== END OF OFFICIAL KNOWLEDGE DATABASE CONTENT =====\n\n";
1744 - } else {
1745 - $context_content .= "===== NO RELEVANT CONTENT FOUND IN KNOWLEDGE DATABASE =====\n";
1746 - }
1747 -
1748 - // NEW: Add approved URLs list to context for AI (only if citation links enabled)
1749 - if ($citation_links_enabled && !empty($this->current_valid_urls)) {
1750 - $context_content .= "===== APPROVED URLS FOR CITATIONS =====\n";
1751 - $context_content .= "You may ONLY use these exact URLs in your response:\n";
1752 - foreach ($this->current_valid_urls as $url) {
1753 - $context_content .= "- " . $url . "\n";
1754 - }
1755 - $context_content .= "\nCRITICAL: Do NOT create, modify, extend, or invent any other URLs. ";
1756 - $context_content .= "===== END APPROVED URLS =====\n\n";
1757 - }
1758 -
1759 925 // Check for and include PDF content
1760 926 $pdf_url = get_transient('mxchat_pdf_url_' . $session_id);
1761 927 $pdf_embeddings = get_transient('mxchat_pdf_embeddings_' . $session_id);
1762 928 $pdf_filename = get_transient('mxchat_pdf_filename_' . $session_id);
@@ -1787,408 +953,129 @@
1787 953 }
1788 954
1789 955 $context_content = apply_filters('mxchat_prepare_context', $context_content, $session_id);
1790 956
1791 - // Extract model from current options for bot-specific model support
1792 - $selected_model = isset($current_options['model']) ? $current_options['model'] : 'gpt-5.1-chat-latest';
1793 -
1794 - $response = $this->mxchat_generate_response(
1795 - $context_content,
1796 - $current_options['api_key'] ?? $this->options['api_key'],
1797 - $current_options['xai_api_key'] ?? $this->options['xai_api_key'],
1798 - $current_options['claude_api_key'] ?? $this->options['claude_api_key'],
1799 - $current_options['deepseek_api_key'] ?? $this->options['deepseek_api_key'],
1800 - $current_options['gemini_api_key'] ?? $this->options['gemini_api_key'],
1801 - $current_options['openrouter_api_key'] ?? $this->options['openrouter_api_key'],
1802 - $conversation_history,
1803 - $is_streaming,
1804 - $session_id,
1805 - $testing_data,
1806 - $selected_model
1807 - );
1808 -
1809 - // Handle streaming vs non-streaming responses
1810 - if ($is_streaming) {
1811 - // Check if streaming actually happened or if it fell back to regular response
1812 - if ($response === true) {
1813 - wp_die();
1814 - }
1815 - // If we get here, streaming fell back to regular response, continue
1816 - // But if there's an error, we need to send it as SSE format since headers are already set
1817 - if (is_array($response) && isset($response['error'])) {
1818 - $error_message = $response['error'];
1819 - $error_code = $response['error_code'] ?? 'api_error';
1820 - // Send error in SSE format that the client JS can handle
1821 - echo "data: " . json_encode([
1822 - 'error' => true,
1823 - 'error_message' => $error_message,
1824 - 'error_code' => $error_code,
1825 - 'text' => $error_message, // Also include as text for fallback handling
1826 - 'message' => $error_message
1827 - ]) . "\n\n";
1828 - echo "data: [DONE]\n\n";
1829 - flush();
1830 - wp_die();
1831 - }
1832 - }
957 + // Generate the response using the full context
958 + $response = $this->mxchat_generate_response(
959 + $context_content,
960 + $this->options['api_key'],
961 + $this->options['xai_api_key'],
962 + $this->options['claude_api_key'],
963 + $this->options['deepseek_api_key'],
964 + $conversation_history
965 + );
1833 966
1834 - // Check if the response is an error array (non-streaming mode)
1835 - if (is_array($response) && isset($response['error'])) {
1836 - wp_send_json_error([
1837 - 'error_message' => $response['error'],
1838 - 'error_code' => $response['error_code'] ?? 'api_error'
1839 - ]);
1840 - wp_die();
1841 - }
1842 -
1843 - // DEBUG: Check what we have
1844 - //error_log("=== BEFORE URL VALIDATION ===");
1845 - //error_log("current_valid_urls is empty? " . (empty($this->current_valid_urls) ? 'YES' : 'NO'));
1846 - //error_log("current_valid_urls count: " . count($this->current_valid_urls));
1847 - //error_log("current_valid_urls content: " . print_r($this->current_valid_urls, true));
1848 -
1849 - // If we get here, the response is valid text - now validate URLs
1850 - if (!empty($this->current_valid_urls)) {
1851 - //error_log("CALLING validate_and_clean_urls");
1852 - $response = $this->validate_and_clean_urls($response, $this->current_valid_urls);
1853 - } else {
1854 - //error_log("SKIPPING validation - current_valid_urls is empty");
1855 - }
1856 - // ===== END URL VALIDATION =====
967 + $this->mxchat_save_chat_message($session_id, 'bot', $response);
1857 968
1858 - // Prepare RAG context data for storage (only include documents used for context)
1859 - $rag_context_for_storage = null;
1860 - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']);
1861 - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis);
969 + // Step 5: Save additional content if available
970 + if (!empty($this->productCardHtml)) {
971 + $this->mxchat_save_chat_message($session_id, 'bot', $this->productCardHtml);
972 + }
1862 973
1863 - if ($has_rag_data || $has_action_data) {
1864 - $rag_context_for_storage = [];
974 + if (!empty($this->fallbackResponse['html'])) {
975 + $this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['html']);
976 + }
1865 977
1866 - // Add RAG/source data if available
1867 - if ($has_rag_data) {
1868 - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches'];
1869 - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? [];
1870 - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35;
1871 - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database';
1872 - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0;
1873 - $rag_context_for_storage['sources_used'] = $this->last_similarity_analysis['sources_used'] ?? 0;
1874 - $rag_context_for_storage['total_chunks_used'] = $this->last_similarity_analysis['total_chunks_used'] ?? 0;
1875 - }
978 + // Step 6: Return the response
979 + $response_data = [
980 + 'text' => $response,
981 + 'html' => !empty($this->productCardHtml) ? $this->productCardHtml : ($this->fallbackResponse['html'] ?? ''),
982 + 'session_id' => $session_id
983 + ];
1876 984
1877 - // Add action analysis data if available
1878 - if ($has_action_data) {
1879 - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis;
1880 - }
1881 - }
1882 -
1883 - // Save the cleaned response with RAG context
1884 - $this->mxchat_save_chat_message($session_id, 'bot', $response, null, $rag_context_for_storage);
1885 -
1886 - // Step 5: Save additional content if available
1887 - if (!empty($this->productCardHtml)) {
1888 - $this->mxchat_save_chat_message($session_id, 'bot', $this->productCardHtml);
1889 - }
1890 -
1891 - if (!empty($this->fallbackResponse['html'])) {
1892 - $this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['html']);
1893 - }
1894 -
1895 - // Step 6: Return the response
1896 - // DEBUG: Check if newlines exist in the response
1897 - //error_log("=== MXCHAT NON-STREAMING RESPONSE DEBUG ===");
1898 - //error_log("Response has newlines: " . (strpos($response, "\n") !== false ? 'YES' : 'NO'));
1899 - //error_log("Response first 500 chars: " . substr($response, 0, 500));
1900 -
1901 - $response_data = [
1902 - 'text' => $response,
1903 - 'html' => !empty($this->productCardHtml) ? $this->productCardHtml : ($this->fallbackResponse['html'] ?? ''),
1904 - 'session_id' => $session_id
1905 - ];
1906 -
1907 - // Include vectorstore error info for admin debugging (only visible to admins via testing_data)
1908 - if (!empty($this->last_vectorstore_error) && $testing_data !== null) {
1909 - $testing_data['vectorstore_error'] = $this->last_vectorstore_error;
1910 - }
1911 -
1912 - // Also pass it as a top-level field so JS can show a better error message to admins
1913 - if (!empty($this->last_vectorstore_error) && current_user_can('manage_options')) {
1914 - $response_data['vectorstore_error'] = $this->last_vectorstore_error;
1915 - }
1916 -
1917 - // Always add testing data for admins (no toggle needed)
1918 - if ($testing_data !== null) {
1919 - $response_data['testing_data'] = $testing_data;
1920 - }
1921 -
1922 - wp_send_json($response_data);
1923 - wp_die();
985 + wp_send_json($response_data);
986 + wp_die();
1924 987 }
1925 988
1926 -/**
1927 - * Get bot-specific options for multi-bot functionality
1928 - * Falls back to default options if bot_id is 'default' or multi-bot add-on is not active
1929 - */
1930 -// Also debug the bot options retrieval
1931 -private function get_bot_options($bot_id = 'default') {
1932 - //error_log("MXCHAT DEBUG: get_bot_options called for bot: " . $bot_id);
1933 -
1934 - if ($bot_id === 'default' || !class_exists('MxChat_Multi_Bot_Manager')) {
1935 - //error_log("MXCHAT DEBUG: Using default options (no multi-bot or bot is 'default')");
1936 - return array();
1937 - }
1938 -
1939 - $bot_options = apply_filters('mxchat_get_bot_options', array(), $bot_id);
1940 -
1941 - if (!empty($bot_options)) {
1942 - //error_log("MXCHAT DEBUG: Got bot-specific options from filter");
1943 - if (isset($bot_options['similarity_threshold'])) {
1944 - //error_log(" - similarity_threshold: " . $bot_options['similarity_threshold']);
1945 - }
1946 - }
1947 -
1948 - return is_array($bot_options) ? $bot_options : array();
1949 -}
1950 -
1951 -/**
1952 - * Get bot-specific Pinecone configuration
1953 - * Used in the knowledge retrieval functions
1954 - */
1955 -// Also add debugging to your get_bot_pinecone_config function
1956 -private function get_bot_pinecone_config($bot_id = 'default') {
1957 - //error_log("MXCHAT DEBUG: get_bot_pinecone_config called for bot: " . $bot_id);
1958 -
1959 - // If default bot or multi-bot add-on not active, use default Pinecone config
1960 - if ($bot_id === 'default' || !class_exists('MxChat_Multi_Bot_Manager')) {
1961 - //error_log("MXCHAT DEBUG: Using default Pinecone config (no multi-bot or bot is 'default')");
1962 - $addon_options = get_option('mxchat_pinecone_addon_options', array());
1963 - $config = array(
1964 - 'use_pinecone' => (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1'),
1965 - 'api_key' => $addon_options['mxchat_pinecone_api_key'] ?? '',
1966 - 'host' => $addon_options['mxchat_pinecone_host'] ?? '',
1967 - 'namespace' => $addon_options['mxchat_pinecone_namespace'] ?? ''
1968 - );
1969 - //error_log("MXCHAT DEBUG: Default config - use_pinecone: " . ($config['use_pinecone'] ? 'true' : 'false'));
1970 - return $config;
1971 - }
1972 -
1973 - //error_log("MXCHAT DEBUG: Calling filter 'mxchat_get_bot_pinecone_config' for bot: " . $bot_id);
1974 -
1975 - // Hook for multi-bot add-on to provide bot-specific Pinecone config
1976 - $bot_pinecone_config = apply_filters('mxchat_get_bot_pinecone_config', array(), $bot_id);
1977 -
1978 - if (!empty($bot_pinecone_config)) {
1979 - //error_log("MXCHAT DEBUG: Got bot-specific config from filter");
1980 - //error_log(" - use_pinecone: " . (isset($bot_pinecone_config['use_pinecone']) ? ($bot_pinecone_config['use_pinecone'] ? 'true' : 'false') : 'not set'));
1981 - //error_log(" - host: " . ($bot_pinecone_config['host'] ?? 'not set'));
1982 - //error_log(" - namespace: " . ($bot_pinecone_config['namespace'] ?? 'not set'));
1983 - } else {
1984 - //error_log("MXCHAT DEBUG: Filter returned empty config!");
1985 - }
1986 -
1987 - return is_array($bot_pinecone_config) ? $bot_pinecone_config : array();
1988 -}
1989 -
1990 -
1991 -// Updated function to check intents and invoke the callback function
989 +// New function to check intents and invoke the callback function
1992 990 private function mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id) {
1993 991 global $wpdb;
1994 992 $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai');
1995 993
1996 - // Get the current bot_id
1997 - $current_bot_id = $this->get_current_bot_id($session_id);
994 + //error_log('🔍 MXCHAT DEBUG: Intent Check Started ==================');
995 + //error_log("🔍 MXCHAT DEBUG: Message: '$message'");
996 + //error_log("🔍 MXCHAT DEBUG: Chat Mode: $chat_mode");
1998 997
1999 998 // Generate the user embedding
999 + //error_log('🔄 MXCHAT DEBUG: Generating user embedding');
2000 1000 $user_embedding = $this->mxchat_generate_embedding($message, $this->options['api_key']);
2001 -
2002 - // Check if embedding generation returned an error
2003 - if (is_array($user_embedding) && isset($user_embedding['error'])) {
2004 - $error_message = $user_embedding['error'];
2005 - $error_code = $user_embedding['error_code'] ?? 'embedding_error';
2006 -
2007 - // FIXED: Send error in appropriate format based on streaming mode
2008 - if ($this->is_streaming) {
2009 - echo "data: " . json_encode([
2010 - 'error' => true,
2011 - 'error_message' => $error_message,
2012 - 'error_code' => $error_code,
2013 - 'text' => $error_message,
2014 - 'message' => $error_message
2015 - ]) . "\n\n";
2016 - echo "data: [DONE]\n\n";
2017 - flush();
2018 - } else {
2019 - wp_send_json_error([
2020 - 'error_message' => $error_message,
2021 - 'error_code' => $error_code
2022 - ]);
2023 - }
2024 - wp_die();
1001 + if (!is_array($user_embedding)) {
1002 + //error_log('❌ MXCHAT DEBUG: Failed to generate user embedding');
1003 + return false;
2025 1004 }
2026 -
2027 - // Check if embedding is valid
2028 - if (!is_array($user_embedding) || empty($user_embedding)) {
2029 - $error_message = esc_html__('Unable to process your message. The embedding service is not responding correctly.', 'mxchat');
2030 -
2031 - // FIXED: Send error in appropriate format based on streaming mode
2032 - if ($this->is_streaming) {
2033 - echo "data: " . json_encode([
2034 - 'error' => true,
2035 - 'error_message' => $error_message,
2036 - 'error_code' => 'invalid_embedding',
2037 - 'text' => $error_message,
2038 - 'message' => $error_message
2039 - ]) . "\n\n";
2040 - echo "data: [DONE]\n\n";
2041 - flush();
2042 - } else {
2043 - wp_send_json_error([
2044 - 'error_message' => $error_message,
2045 - 'error_code' => 'invalid_embedding'
2046 - ]);
2047 - }
2048 - wp_die();
2049 - }
2050 -
1005 + //error_log('✅ MXCHAT DEBUG: User embedding generated successfully');
1006 +
2051 1007 // Fetch intents from the database
2052 1008 $table_name = $wpdb->prefix . 'mxchat_intents';
2053 1009 if ($chat_mode === 'agent') {
1010 + //error_log('🔍 MXCHAT DEBUG: Agent mode - fetching only chatbot switch intent');
2054 1011 $query = $wpdb->prepare(
2055 - "SELECT * FROM $table_name WHERE callback_function = %s AND (enabled = 1 OR enabled IS NULL)",
1012 + "SELECT * FROM $table_name WHERE callback_function = %s",
2056 1013 'mxchat_handle_switch_to_chatbot_intent'
2057 1014 );
2058 1015 $intents = $wpdb->get_results($query);
2059 1016 } else {
2060 - $intents = $wpdb->get_results("SELECT * FROM $table_name WHERE enabled = 1 OR enabled IS NULL");
1017 + //error_log('🔍 MXCHAT DEBUG: AI mode - fetching all intents');
1018 + $intents = $wpdb->get_results("SELECT * FROM $table_name");
2061 1019 }
2062 -
1020 +
1021 + //error_log('🔍 MXCHAT DEBUG: Found ' . count($intents) . ' intents to check');
1022 +
2063 1023 if (empty($intents)) {
1024 + //error_log('❌ MXCHAT DEBUG: No intents found in database');
2064 1025 return false;
2065 1026 }
2066 -
2067 - // Prefetch individual phrase vectors from wp_mxchat_intent_phrases (grouped by intent_id)
2068 - $phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
2069 - $phrases_by_intent = [];
2070 - if ($wpdb->get_var("SHOW TABLES LIKE '$phrases_table'") === $phrases_table) {
2071 - $all_phrases = $wpdb->get_results("SELECT intent_id, phrase, embedding_vector FROM $phrases_table");
2072 - foreach ($all_phrases as $p) {
2073 - $phrases_by_intent[$p->intent_id][] = $p;
2074 - }
2075 - }
2076 -
1027 +
2077 1028 $highest_similarity = -INF;
2078 1029 $matched_intent = null;
2079 -
2080 - // Array to store action analysis for testing panel
2081 - $action_analysis = [];
2082 -
1030 +
1031 + //error_log('📊 MXCHAT DEBUG: Intent Similarity Scores ==================');
2083 1032 foreach ($intents as $intent) {
2084 - // Additional check for enabled state
2085 - $is_enabled = isset($intent->enabled) ? (bool)$intent->enabled : true;
2086 - if (!$is_enabled) {
2087 - continue;
2088 - }
2089 -
2090 - // Check if this action is enabled for the current bot
2091 - if (!$this->is_action_enabled_for_bot($intent, $current_bot_id)) {
2092 - continue;
2093 - }
2094 -
2095 - $best_similarity = -INF;
2096 - $matched_phrase_text = '';
2097 -
2098 - // Check legacy embedding vector (existing behavior)
1033 + //error_log("🔄 MXCHAT DEBUG: Checking intent: '{$intent->intent_label}' (callback: {$intent->callback_function})");
1034 +
2099 1035 $intent_embedding_serialized = $intent->embedding_vector;
2100 1036 $intent_embedding = $intent_embedding_serialized
2101 1037 ? unserialize($intent_embedding_serialized, ['allowed_classes' => false])
2102 1038 : null;
2103 -
2104 - if (is_array($intent_embedding) && !empty($intent_embedding)) {
2105 - $legacy_similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $intent_embedding);
2106 - if ($legacy_similarity > $best_similarity) {
2107 - $best_similarity = $legacy_similarity;
2108 - $matched_phrase_text = 'legacy';
2109 - }
2110 - }
2111 -
2112 - // Check individual phrase vectors
2113 - if (isset($phrases_by_intent[$intent->id])) {
2114 - foreach ($phrases_by_intent[$intent->id] as $phrase_row) {
2115 - $phrase_embedding = $phrase_row->embedding_vector
2116 - ? unserialize($phrase_row->embedding_vector, ['allowed_classes' => false])
2117 - : null;
2118 - if (!is_array($phrase_embedding)) {
2119 - continue;
2120 - }
2121 - $phrase_similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $phrase_embedding);
2122 - if ($phrase_similarity > $best_similarity) {
2123 - $best_similarity = $phrase_similarity;
2124 - $matched_phrase_text = $phrase_row->phrase;
2125 - }
2126 - }
2127 - }
2128 -
2129 - // Skip if no valid embedding was found at all
2130 - if ($best_similarity === -INF) {
1039 +
1040 + if (!is_array($intent_embedding)) {
1041 + //error_log("❌ MXCHAT DEBUG: Invalid embedding for intent: {$intent->intent_label}");
2131 1042 continue;
2132 1043 }
2133 -
2134 - $similarity = $best_similarity;
1044 +
1045 + $similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $intent_embedding);
2135 1046 $intent_threshold = isset($intent->similarity_threshold) ? $intent->similarity_threshold : 0.85;
2136 -
2137 - // Store action analysis data for testing panel
2138 - $action_analysis[] = [
2139 - 'intent_label' => $intent->intent_label,
2140 - 'callback_function' => $intent->callback_function,
2141 - 'similarity' => round($similarity, 4),
2142 - 'similarity_percentage' => round($similarity * 100, 2),
2143 - 'threshold' => $intent_threshold,
2144 - 'threshold_percentage' => round($intent_threshold * 100, 2),
2145 - 'above_threshold' => $similarity >= $intent_threshold,
2146 - 'matched_phrase' => $matched_phrase_text,
2147 - 'triggered' => false // Will be updated below if this intent is triggered
2148 - ];
2149 -
1047 +
1048 +
2150 1049 if ($similarity >= $intent_threshold && $similarity > $highest_similarity) {
2151 1050 $highest_similarity = $similarity;
2152 1051 $matched_intent = $intent;
1052 + //error_log("✅ MXCHAT DEBUG: New best match: '{$intent->intent_label}' with similarity {$similarity}");
2153 1053 }
2154 1054 }
1055 + //error_log('📊 MXCHAT DEBUG: End Intent Scores ==================');
2155 1056
2156 - // Mark the triggered action if any
2157 1057 if ($matched_intent) {
2158 - foreach ($action_analysis as &$action) {
2159 - if ($action['intent_label'] === $matched_intent->intent_label) {
2160 - $action['triggered'] = true;
2161 - break;
2162 - }
2163 - }
2164 - }
2165 -
2166 - // Sort actions by similarity (highest first) and store for testing panel
2167 - usort($action_analysis, function($a, $b) {
2168 - return $b['similarity'] <=> $a['similarity'];
2169 - });
2170 -
2171 - // Store action analysis for testing panel capture
2172 - $this->last_action_analysis = $action_analysis;
2173 -
2174 - // Around line 715 in your mxchat_check_intent_and_invoke_callback function
2175 - if ($matched_intent) {
1058 + //error_log("🎯 MXCHAT DEBUG: Final Intent Match: '{$matched_intent->intent_label}'");
1059 + //error_log("🔄 MXCHAT DEBUG: Invoking callback: {$matched_intent->callback_function}");
1060 +
2176 1061 // If the callback is a method on this instance (core callback), call it directly
2177 1062 if (method_exists($this, $matched_intent->callback_function)) {
1063 + //error_log('🔍 MXCHAT DEBUG: Using direct method call for core callback');
2178 1064 $callback_result = call_user_func(
2179 - [$this, $matched_intent->callback_function],
2180 - $message,
2181 - $user_id,
2182 - $session_id,
2183 - $matched_intent,
2184 - $user_context ?? null
2185 - );
1065 + [$this, $matched_intent->callback_function],
1066 + $message,
1067 + $user_id,
1068 + $session_id,
1069 + $matched_intent,
1070 + $user_context // Add user context
1071 + );
2186 1072 } else {
1073 + //error_log('🔍 MXCHAT DEBUG: Using apply_filters for add-on callback');
2187 1074 // Otherwise, use apply_filters for add-on callbacks
2188 1075 $callback_result = apply_filters(
2189 1076 $matched_intent->callback_function,
2190 - false,
1077 + false, // default return value
2191 1078 $message,
2192 1079 $user_id,
2193 1080 $session_id,
2194 1081 $matched_intent
@@ -2194,50 +1081,24 @@
2194 1081 $matched_intent
2195 1082 );
2196 1083 }
2197 1084
2198 - // Handle the callback result properly
1085 + //error_log('🔍 MXCHAT DEBUG: Callback result type: ' . gettype($callback_result));
2199 1086 if ($callback_result !== false) {
2200 - // If callback returned an array with chat_mode, use it directly
2201 - if (is_array($callback_result) && isset($callback_result['chat_mode'])) {
2202 - $this->fallbackResponse = $callback_result;
2203 - return $callback_result; // Return the full array
2204 - } else {
2205 - $this->fallbackResponse = $callback_result;
2206 - return true;
2207 - }
1087 + //error_log('✅ MXCHAT DEBUG: Intent handled successfully');
1088 + $this->fallbackResponse = $callback_result;
1089 + return true;
2208 1090 }
1091 + //error_log('❌ MXCHAT DEBUG: Callback returned false');
1092 + } else {
1093 + //error_log('❌ MXCHAT DEBUG: No matching intent found');
2209 1094 }
2210 1095
1096 + //error_log('🔍 MXCHAT DEBUG: Intent Check Completed ==================');
2211 1097 return false;
2212 1098 }
2213 1099
2214 -/**
2215 - * Check if an action is enabled for a specific bot
2216 - */
2217 -private function is_action_enabled_for_bot($intent, $bot_id) {
2218 - // If enabled_bots column doesn't exist or is null, assume it's enabled for all bots (backward compatibility)
2219 - if (!isset($intent->enabled_bots) || empty($intent->enabled_bots)) {
2220 - return true;
2221 - }
2222 1100
2223 - $enabled_bots = json_decode($intent->enabled_bots, true);
2224 -
2225 - // If JSON decode fails or returns empty array, assume enabled for all (backward compatibility)
2226 - if (!is_array($enabled_bots) || empty($enabled_bots)) {
2227 - return true;
2228 - }
2229 -
2230 - // Admin testing tab uses bot_id "testing" — treat it as "default" so all
2231 - // default-bot actions are testable from the admin panel
2232 - if ($bot_id === 'testing') {
2233 - $bot_id = 'default';
2234 - }
2235 -
2236 - // Check if the current bot is in the enabled bots list
2237 - return in_array($bot_id, $enabled_bots);
2238 -}
2239 -
2240 1101 // Helper function to clear PDF and Word document related transients
2241 1102 private function clear_pdf_transients($session_id) {
2242 1103 // PDF transients
2243 1104 delete_transient('mxchat_pdf_url_' . $session_id);
@@ -2256,172 +1117,80 @@
2256 1117
2257 1118
2258 1119 //verified good
2259 1120 public function mxchat_handle_email_capture($message, $user_id, $session_id) {
2260 - // Get the user's original instruction/message
2261 - $user_instruction = esc_html($this->options['triggered_phrase_response'] ?? esc_html__("Please provide your email address.", 'mxchat'));
2262 -
2263 - // Set instruction for AI - just pass along what the user wanted to say
2264 - $this->current_action_instruction = $user_instruction;
2265 -
2266 - // Set the transient to track email capture flow
1121 + // Log the message safely
1122 + //error_log("Triggered email capture intent for message: " . sanitize_text_field($message));
1123 +
1124 + // Initiate email capture flow
1125 + $response = esc_html($this->options['triggered_phrase_response'] ?? esc_html__("Would you like to join our mailing list? Please provide your email below.", 'mxchat'));
1126 +
2267 1127 set_transient('mxchat_email_capture_' . $user_id, true, 5 * MINUTE_IN_SECONDS);
2268 -
2269 - // Return false to let the AI generate the response
2270 - return false;
1128 + $this->mxchat_save_chat_message($session_id, 'bot', $response);
1129 +
1130 + // Respond to the user
1131 + wp_send_json(['message' => $response]);
1132 + wp_die();
2271 1133 }
2272 1134
1135 +//very good
2273 1136 public function mxchat_generate_image($message, $user_id, $session_id) {
2274 - //error_log("Starting image generation for message: " . $message);
2275 -
2276 - // Prepare a prompt for OpenAI image generation
1137 + // Prepare a prompt for DALL-E
2277 1138 $prompt = esc_html__('Create an image of ', 'mxchat') . sanitize_text_field($message);
2278 1139
2279 1140 // Use the existing OpenAI API key
2280 1141 $openai_api_key = sanitize_text_field($this->options['api_key']);
2281 1142
2282 - // Call OpenAI GPT Image to generate an image
2283 - $image_response = $this->mxchat_generate_openai_image($prompt, $openai_api_key);
2284 -
1143 + // Call DALL-E to generate an image
1144 + $image_response = $this->mxchat_generate_dalle_image($prompt, $openai_api_key);
1145 +
2285 1146 // Check if the response contains an image URL
2286 1147 if (isset($image_response['imageUrl'])) {
2287 1148 $image_url = esc_url_raw($image_response['imageUrl']);
2288 -
1149 +
2289 1150 // Construct the HTML with a CSS class instead of inline styles
2290 1151 $response_html = '<img src="' . esc_url($image_url) . '" alt="' . esc_attr__('Generated Image', 'mxchat') . '" class="mxchat-generated-image" />';
1152 +
2291 1153 $response_text = esc_html__('Here is the image I generated:', 'mxchat');
2292 -
2293 - // Save the bot message with both text and HTML
2294 - $this->mxchat_save_chat_message($session_id, 'bot', $response_text);
2295 - $this->mxchat_save_chat_message($session_id, 'bot', $response_html);
2296 -
2297 - // Set the fallback response for the chat handler
2298 - $this->fallbackResponse = [
2299 - 'text' => $response_text,
2300 - 'html' => $response_html,
2301 - 'images' => [$image_url]
2302 - ];
2303 -
2304 - // For debugging/verification - Use json_encode to verify what's being set
2305 - //error_log("Image generation successful - fallbackResponse set: " . json_encode($this->fallbackResponse));
2306 -
2307 - // Return the response directly instead of relying on the property
2308 - return $this->fallbackResponse;
2309 1154 } else {
2310 1155 $response_text = esc_html__("I'm sorry, but I couldn't generate an image based on your request.", 'mxchat');
2311 -
2312 - // Save the error message
2313 - $this->mxchat_save_chat_message($session_id, 'bot', $response_text);
2314 -
2315 - // Set the fallback response for the chat handler
2316 - $this->fallbackResponse = [
2317 - 'text' => $response_text,
2318 - 'html' => '',
2319 - 'images' => []
2320 - ];
2321 -
1156 + $response_html = '';
2322 1157 //error_log("DALL-E image generation error: " . esc_html($image_response['error'] ?? 'Unknown error.'));
2323 - //error_log("Error fallbackResponse set: " . json_encode($this->fallbackResponse));
2324 -
2325 - // Return the response directly instead of relying on the property
2326 - return $this->fallbackResponse;
2327 1158 }
2328 -}
2329 1159
2330 -public function mxchat_generate_gemini_image($message, $user_id, $session_id) {
2331 - $prompt = esc_html__('Create an image of ', 'mxchat') . sanitize_text_field($message);
1160 + // Where you save the AI response
1161 + if (!empty($response)) {
1162 + $this->mxchat_save_chat_message($session_id, 'bot', $response);
1163 + }
1164 +
1165 + // Similarly, when returning the response data
1166 + $response_data = [
1167 + 'text' => empty($response) ? null : $response, // Use null instead of empty string
1168 + 'html' => !empty($this->productCardHtml) ? $this->productCardHtml : ($this->fallbackResponse['html'] ?? ''),
1169 + 'session_id' => $session_id
1170 + ];
2332 1171
2333 - $gemini_api_key = sanitize_text_field($this->options['gemini_api_key'] ?? '');
2334 - if (empty($gemini_api_key)) {
2335 - $response_text = esc_html__("Gemini API key is not configured.", 'mxchat');
2336 - $this->mxchat_save_chat_message($session_id, 'bot', $response_text);
2337 - return ['text' => $response_text, 'html' => '', 'images' => []];
2338 - }
2339 -
2340 - $image_response = $this->mxchat_generate_imagen_image($prompt, $gemini_api_key);
2341 -
2342 - if (isset($image_response['imageUrl'])) {
2343 - $image_url = esc_url_raw($image_response['imageUrl']);
2344 -
2345 - $response_html = '<img src="' . esc_url($image_url) . '" alt="' . esc_attr__('Generated Image', 'mxchat') . '" class="mxchat-generated-image" />';
2346 - $response_text = esc_html__('Here is the image I generated:', 'mxchat');
2347 -
2348 - $this->mxchat_save_chat_message($session_id, 'bot', $response_text);
2349 - $this->mxchat_save_chat_message($session_id, 'bot', $response_html);
2350 -
2351 - $this->fallbackResponse = [
2352 - 'text' => $response_text,
2353 - 'html' => $response_html,
2354 - 'images' => [$image_url]
2355 - ];
2356 -
2357 - return $this->fallbackResponse;
2358 - } else {
2359 - $response_text = esc_html__("I'm sorry, but I couldn't generate an image based on your request.", 'mxchat');
2360 -
2361 - $this->mxchat_save_chat_message($session_id, 'bot', $response_text);
2362 -
2363 - $this->fallbackResponse = [
2364 - 'text' => $response_text,
2365 - 'html' => '',
2366 - 'images' => []
2367 - ];
2368 -
2369 - return $this->fallbackResponse;
2370 - }
1172 + // Send the JSON response
1173 + header('Content-Type: application/json; charset=' . get_option('blog_charset'));
1174 + echo json_encode($response_data, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
1175 + wp_die();
2371 1176 }
2372 -
2373 -private function mxchat_save_generated_image($base64_data, $mime_type = 'image/png', $prefix = 'mxchat-generated') {
2374 - $extension = ($mime_type === 'image/jpeg') ? 'jpg' : 'png';
2375 - $filename = sanitize_file_name($prefix . '-' . wp_generate_uuid4() . '.' . $extension);
2376 - $decoded = base64_decode($base64_data);
2377 -
2378 - if ($decoded === false) {
2379 - return new \WP_Error('decode_failed', esc_html__('Failed to decode image data.', 'mxchat'));
2380 - }
2381 -
2382 - $upload = wp_upload_bits($filename, null, $decoded);
2383 -
2384 - if (!empty($upload['error'])) {
2385 - return new \WP_Error('upload_failed', $upload['error']);
2386 - }
2387 -
2388 - $attach_id = wp_insert_attachment([
2389 - 'post_mime_type' => $mime_type,
2390 - 'post_title' => $prefix,
2391 - 'post_content' => '',
2392 - 'post_status' => 'inherit',
2393 - ], $upload['file']);
2394 -
2395 - if (is_wp_error($attach_id)) {
2396 - return $attach_id;
2397 - }
2398 -
2399 - require_once ABSPATH . 'wp-admin/includes/image.php';
2400 - $metadata = wp_generate_attachment_metadata($attach_id, $upload['file']);
2401 - wp_update_attachment_metadata($attach_id, $metadata);
2402 -
2403 - return esc_url_raw(wp_get_attachment_url($attach_id));
2404 -}
2405 -
2406 -private function mxchat_generate_openai_image($prompt, $api_key, $model = 'gpt-image-1', $timeout = 60) {
1177 +private function mxchat_generate_dalle_image($prompt, $api_key, $model = 'dall-e-3', $timeout = 60) {
2407 1178 $api_url = 'https://api.openai.com/v1/images/generations';
2408 1179 $body = json_encode([
2409 - 'prompt' => sanitize_text_field($prompt),
2410 - 'n' => 1,
2411 - 'size' => '1024x1024',
2412 - 'quality' => 'medium',
2413 - 'output_format' => 'png',
2414 - 'model' => sanitize_text_field($model),
1180 + 'prompt' => sanitize_text_field($prompt),
1181 + 'n' => 1,
1182 + 'size' => '1024x1024',
1183 + 'model' => sanitize_text_field($model),
2415 1184 ]);
2416 1185
2417 1186 $args = [
2418 - 'body' => $body,
1187 + 'body' => $body,
2419 1188 'headers' => [
2420 - 'Content-Type' => 'application/json',
1189 + 'Content-Type' => 'application/json',
2421 1190 'Authorization' => 'Bearer ' . sanitize_text_field($api_key),
2422 1191 ],
2423 - 'method' => 'POST',
1192 + 'method' => 'POST',
2424 1193 'timeout' => absint($timeout),
2425 1194 ];
2426 1195
2427 1196 $response = wp_remote_post($api_url, $args);
@@ -2426,105 +1195,61 @@
2426 1195
2427 1196 $response = wp_remote_post($api_url, $args);
2428 1197
2429 1198 if (is_wp_error($response)) {
1199 + //error_log("DALL-E request failed: " . $response->get_error_message());
2430 1200 return ['error' => esc_html__('Error generating image: ', 'mxchat') . $response->get_error_message()];
2431 1201 }
2432 1202
2433 1203 $response_body = json_decode(wp_remote_retrieve_body($response), true);
2434 1204
2435 - $b64 = $response_body['data'][0]['b64_json'] ?? $response_body['data'][0]['b64'] ?? null;
2436 - if ($b64) {
2437 - $saved_url = $this->mxchat_save_generated_image($b64, 'image/png', 'mxchat-openai');
2438 - if (is_wp_error($saved_url)) {
2439 - return ['error' => $saved_url->get_error_message()];
2440 - }
2441 - return ['imageUrl' => $saved_url];
1205 + if (isset($response_body['data'][0]['url'])) {
1206 + return ['imageUrl' => esc_url_raw($response_body['data'][0]['url'])];
2442 1207 } else {
1208 + //error_log("DALL-E response error: " . wp_remote_retrieve_body($response));
2443 1209 return ['error' => esc_html__('Failed to generate image.', 'mxchat')];
2444 1210 }
2445 1211 }
2446 1212
2447 -private function mxchat_generate_imagen_image($prompt, $api_key, $timeout = 60) {
2448 - $api_url = 'https://generativelanguage.googleapis.com/v1beta/models/imagen-4.0-generate-001:predict';
2449 -
2450 - $body = json_encode([
2451 - 'instances' => [['prompt' => sanitize_text_field($prompt)]],
2452 - 'parameters' => [
2453 - 'sampleCount' => 1,
2454 - 'aspectRatio' => '1:1',
2455 - ],
2456 - ]);
2457 -
2458 - $args = [
2459 - 'body' => $body,
2460 - 'headers' => [
2461 - 'Content-Type' => 'application/json',
2462 - 'x-goog-api-key' => sanitize_text_field($api_key),
2463 - ],
2464 - 'method' => 'POST',
2465 - 'timeout' => absint($timeout),
2466 - ];
2467 -
2468 - $response = wp_remote_post($api_url, $args);
2469 -
2470 - if (is_wp_error($response)) {
2471 - return ['error' => esc_html__('Error generating image: ', 'mxchat') . $response->get_error_message()];
2472 - }
2473 -
2474 - $response_body = json_decode(wp_remote_retrieve_body($response), true);
2475 -
2476 - $b64 = $response_body['predictions'][0]['bytesBase64Encoded'] ?? $response_body['predictions'][0]['imageBytes'] ?? null;
2477 - if ($b64) {
2478 - $mime = $response_body['predictions'][0]['mimeType'] ?? 'image/png';
2479 - $saved_url = $this->mxchat_save_generated_image($b64, $mime, 'mxchat-gemini');
2480 - if (is_wp_error($saved_url)) {
2481 - return ['error' => $saved_url->get_error_message()];
2482 - }
2483 - return ['imageUrl' => $saved_url];
2484 - } else {
2485 - return ['error' => esc_html__('Failed to generate image.', 'mxchat')];
2486 - }
2487 -}
2488 -
2489 1213 /**
2490 1214 * Handle web search requests.
2491 1215 *
2492 - * Sends the refined search query to the Brave Search API and uses the
2493 - * results to generate a conversational response with the AI model.
1216 + * Sends the refined search query to the Brave Search API and displays neatly formatted,
1217 + * styled search results. Results are cached for performance.
2494 1218 *
2495 1219 * @since 1.0.0
2496 1220 * @param string $message The user's search query.
2497 1221 * @param string $user_id The user identifier.
2498 1222 * @param string $session_id The current session ID.
2499 - * @return array Response array containing text with embedded HTML links
1223 + * @return void
2500 1224 */
2501 -public function mxchat_handle_search_request($message, $user_id, $session_id) {
1225 +public function mxchat_handle_search_request( $message, $user_id, $session_id ) {
2502 1226 // Step 1: Interpret and refine the search query
2503 - $refined_search_query = $this->mxchat_interpret_search_query($message);
2504 - if (empty($refined_search_query)) {
2505 - return array(
2506 - 'text' => esc_html__('I apologize, but could you please rephrase your search request?', 'mxchat'),
2507 - 'html' => ''
1227 + $refined_search_query = $this->mxchat_interpret_search_query( $message );
1228 +
1229 + if ( empty( $refined_search_query ) ) {
1230 + $this->fallbackResponse = array(
1231 + 'text' => esc_html__( 'I apologize, but could you please rephrase your search request?', 'mxchat' ),
2508 1232 );
1233 + return;
2509 1234 }
2510 -
1235 +
2511 1236 // Retrieve and validate API settings
2512 - $options = get_option('mxchat_options');
2513 - $api_key = isset($options['brave_api_key']) ? sanitize_text_field($options['brave_api_key']) : '';
2514 - $results_count = isset($options['brave_results_count']) ? absint($options['brave_results_count']) : 5;
2515 -
2516 - if (empty($api_key)) {
2517 - return array(
2518 - 'text' => esc_html__('Search functionality is temporarily unavailable. Please try again later.', 'mxchat'),
2519 - 'html' => ''
1237 + $options = get_option( 'mxchat_options' );
1238 + $api_key = isset( $options['brave_api_key'] ) ? sanitize_text_field( $options['brave_api_key'] ) : '';
1239 + $results_count = isset( $options['brave_results_count'] ) ? absint( $options['brave_results_count'] ) : 5;
1240 +
1241 + if ( empty( $api_key ) ) {
1242 + $this->fallbackResponse = array(
1243 + 'text' => esc_html__( 'Search functionality is temporarily unavailable. Please try again later.', 'mxchat' ),
2520 1244 );
1245 + return;
2521 1246 }
2522 -
1247 +
2523 1248 // Build the API request URL
2524 1249 $api_url = add_query_arg(
2525 1250 array(
2526 - 'q' => rawurlencode($refined_search_query),
1251 + 'q' => rawurlencode( $refined_search_query ),
2527 1252 'count' => $results_count,
2528 1253 'text_decorations' => 'true',
2529 1254 'rich_data' => 'true',
2530 1255 ),
@@ -2529,16 +1254,16 @@
2529 1254 'rich_data' => 'true',
2530 1255 ),
2531 1256 'https://api.search.brave.com/res/v1/web/search'
2532 1257 );
2533 -
1258 +
2534 1259 // Attempt to retrieve cached results first
2535 - $transient_key = 'mxchat_search_' . md5($refined_search_query);
2536 - $results = get_transient($transient_key);
2537 -
2538 - if (false === $results) {
2539 - // SECURITY FIX: Changed to wp_safe_remote_get
2540 - $response = wp_safe_remote_get(
1260 + $transient_key = 'mxchat_search_' . md5( $refined_search_query );
1261 + $results = get_transient( $transient_key );
1262 +
1263 + if ( false === $results ) {
1264 + // Fetch new results from the Brave Search API
1265 + $response = wp_remote_get(
2541 1266 $api_url,
2542 1267 array(
2543 1268 'headers' => array(
2544 1269 'Accept' => 'application/json',
@@ -2547,98 +1272,162 @@
2547 1272 ),
2548 1273 'timeout' => 10,
2549 1274 )
2550 1275 );
2551 -
2552 - if (is_wp_error($response)) {
2553 - return array(
2554 - 'text' => esc_html__('I encountered an error while searching. Please try again.', 'mxchat'),
2555 - 'html' => ''
1276 +
1277 + if ( is_wp_error( $response ) ) {
1278 + $this->fallbackResponse = array(
1279 + 'text' => esc_html__( 'I encountered an error while searching. Please try again.', 'mxchat' ),
2556 1280 );
1281 + return;
2557 1282 }
2558 -
2559 - $results = json_decode(wp_remote_retrieve_body($response), true);
2560 -
2561 - if (json_last_error() !== JSON_ERROR_NONE) {
2562 - return array(
2563 - 'text' => esc_html__('I received an invalid response from the search service.', 'mxchat'),
2564 - 'html' => ''
1283 +
1284 + $results = json_decode( wp_remote_retrieve_body( $response ), true );
1285 +
1286 + if ( json_last_error() !== JSON_ERROR_NONE ) {
1287 + $this->fallbackResponse = array(
1288 + 'text' => esc_html__( 'I received an invalid response from the search service.', 'mxchat' ),
2565 1289 );
1290 + return;
2566 1291 }
2567 -
1292 +
2568 1293 // Cache results for one hour
2569 - set_transient($transient_key, $results, HOUR_IN_SECONDS);
1294 + set_transient( $transient_key, $results, HOUR_IN_SECONDS );
2570 1295 }
2571 -
2572 - // Process results
2573 - if (!empty($results['web']['results']) && is_array($results['web']['results'])) {
2574 - // Create a more straightforward summary with HTML links
2575 - $search_results_text = '';
2576 -
2577 - // Add a simple intro
2578 - $search_results_text .= sprintf(
2579 - esc_html__("Here's what I found about '%s':", 'mxchat'),
2580 - esc_html($refined_search_query)
1296 +
1297 + // Process and display results
1298 + if ( ! empty( $results['web']['results'] ) && is_array( $results['web']['results'] ) ) {
1299 + $html = $this->generate_search_results_html( $results['web']['results'], $refined_search_query );
1300 +
1301 + // Only return HTML (no large text summary)
1302 + $this->fallbackResponse = array(
1303 + 'html' => $html,
2581 1304 );
2582 -
2583 - // Add the top results with HTML links
2584 - foreach (array_slice($results['web']['results'], 0, 5) as $result) {
2585 - $title = isset($result['title']) ? wp_strip_all_tags($result['title']) : '';
2586 - $url = isset($result['url']) ? esc_url($result['url']) : '';
2587 - $description = isset($result['description']) ? wp_strip_all_tags($result['description']) : '';
2588 -
2589 - // Add a line break after the intro
2590 - $search_results_text .= '<br><br>';
2591 -
2592 - // Add title as a link
2593 - $search_results_text .= sprintf(
2594 - '<a href="%s" target="_blank" rel="noopener noreferrer">%s</a><br>',
2595 - $url,
2596 - $title
2597 - );
2598 -
2599 - // Add a condensed description
2600 - $search_results_text .= sprintf("%s", $description);
2601 - }
2602 -
1305 +
2603 1306 // Save to chat history
2604 - $this->mxchat_save_chat_message($session_id, 'bot', $search_results_text);
2605 -
2606 - // Return the formatted text with embedded HTML links
2607 - return array(
2608 - 'text' => $search_results_text,
2609 - 'html' => ''
2610 - );
1307 + $this->mxchat_save_chat_message( $session_id, 'bot', $html );
2611 1308 } else {
2612 - return array(
1309 + $this->fallbackResponse = array(
2613 1310 'text' => sprintf(
2614 - esc_html__('I searched for "%s" but couldn\'t find any relevant results. Would you like to try different search terms?', 'mxchat'),
2615 - esc_html($refined_search_query)
1311 + esc_html__( 'I couldn\'t find any relevant results for "%s". Would you like to try different search terms?', 'mxchat' ),
1312 + esc_html( $refined_search_query )
2616 1313 ),
2617 - 'html' => ''
2618 1314 );
2619 1315 }
2620 1316 }
2621 1317
2622 -//very good
1318 +
2623 1319 /**
2624 - * Handle image search requests from the chatbot
1320 + * Format search results into a natural text summary.
2625 1321 *
2626 - * @param string $message The user's search query
2627 - * @param int $user_id The user's ID
2628 - * @param string $session_id The chat session ID
2629 - * @return array Response array with text and HTML content
1322 + * @since 1.0.0
1323 + * @param array $results The search results from the API.
1324 + * @param string $query The original search query.
1325 + * @return string The text summary of the top results.
2630 1326 */
1327 +private function format_search_results( $results, $query ) {
1328 + $summary = sprintf(
1329 + esc_html__( 'Here are the most relevant results for "%s":', 'mxchat' ),
1330 + esc_html( $query )
1331 + ) . "\n\n";
1332 +
1333 + $max_results = min( count( $results ), 3 );
1334 + for ( $i = 0; $i < $max_results; $i++ ) {
1335 + $result = $results[ $i ];
1336 + $title = isset( $result['title'] ) ? wp_strip_all_tags( $result['title'] ) : '';
1337 + $description = isset( $result['description'] ) ? wp_strip_all_tags( $result['description'] ) : '';
1338 +
1339 + // Append title and description to the summary
1340 + $summary .= sprintf(
1341 + "%s\n%s\n\n",
1342 + esc_html( $title ),
1343 + esc_html( $description )
1344 + );
1345 + }
1346 +
1347 + return $summary;
1348 +}
1349 +
1350 +/**
1351 + * Generate HTML markup for search results.
1352 + *
1353 + * @since 1.0.0
1354 + * @param array $results The search results from the API.
1355 + * @param string $query The user-refined query.
1356 + * @return string The HTML markup for displaying the results.
1357 + */
1358 +private function generate_search_results_html( $results, $query ) {
1359 + ob_start();
1360 + ?>
1361 + <div class="mxchat-search-results">
1362 + <?php foreach ( $results as $result ) :
1363 + $title = isset( $result['title'] ) ? wp_strip_all_tags( $result['title'] ) : '';
1364 + $url = isset( $result['url'] ) ? esc_url( $result['url'] ) : '#';
1365 + $description = isset( $result['description'] ) ? wp_strip_all_tags( $result['description'] ) : '';
1366 + $favicon = isset( $result['meta_url']['favicon'] ) ? esc_url( $result['meta_url']['favicon'] ) : '';
1367 + $thumbnail = isset( $result['thumbnail']['src'] ) ? esc_url( $result['thumbnail']['src'] ) : '';
1368 + $domain = parse_url( $url, PHP_URL_HOST );
1369 + ?>
1370 + <div class="mxchat-search-item">
1371 + <div class="mxchat-search-header">
1372 + <?php if ( $favicon ) : ?>
1373 + <img
1374 + src="<?php echo esc_url( $favicon ); ?>"
1375 + class="mxchat-site-icon"
1376 + alt="<?php echo esc_attr__( 'Site icon', 'mxchat' ); ?>"
1377 + width="16"
1378 + height="16"
1379 + />
1380 + <?php endif; ?>
1381 + <div class="mxchat-site-url"><?php echo esc_html( $domain ); ?></div>
1382 + </div>
1383 +
1384 + <div class="mxchat-search-content">
1385 + <h3 class="mxchat-search-title">
1386 + <a href="<?php echo esc_url( $url ); ?>"
1387 + target="_blank"
1388 + rel="noopener noreferrer"
1389 + >
1390 + <?php echo esc_html( $title ); ?>
1391 + </a>
1392 + </h3>
1393 +
1394 + <?php if ( $thumbnail ) : ?>
1395 + <div class="mxchat-search-thumbnail">
1396 + <img
1397 + src="<?php echo esc_url( $thumbnail ); ?>"
1398 + alt="<?php echo esc_attr__( 'Thumbnail image', 'mxchat' ); ?>"
1399 + loading="lazy"
1400 + />
1401 + </div>
1402 + <?php endif; ?>
1403 +
1404 + <div class="mxchat-search-description">
1405 + <?php echo esc_html( $description ); ?>
1406 + </div>
1407 + </div>
1408 + </div>
1409 + <?php endforeach; ?>
1410 + </div>
1411 + <?php
1412 + return ob_get_clean();
1413 +}
1414 +
1415 +
1416 +//very good
2631 1417 public function mxchat_handle_image_search_request($message, $user_id, $session_id) {
2632 - // Step 1: Interpret the search query using the user's selected AI model
1418 +
1419 + // Step 1: Interpret the search query for better results
2633 1420 $refined_search_query = $this->mxchat_interpret_search_query($message);
2634 1421
1422 +
2635 1423 // If no query was interpreted, return a fallback message
2636 1424 if (empty($refined_search_query)) {
2637 - return array(
1425 + $this->fallbackResponse = [
2638 1426 'text' => __("I'm sorry, I couldn't interpret your search query. Please specify what you'd like to see images of.", 'mxchat'),
2639 1427 'html' => "",
2640 - );
1428 + ];
1429 + return;
2641 1430 }
2642 1431
2643 1432 // Brave API URL
2644 1433 $api_url = 'https://api.search.brave.com/res/v1/images/search';
@@ -2647,12 +1436,19 @@
2647 1436 $options = get_option('mxchat_options');
2648 1437 $api_key = isset($options['brave_api_key']) ? sanitize_text_field($options['brave_api_key']) : '';
2649 1438
2650 1439 if (empty($api_key)) {
2651 - return array(
1440 +/*
1441 + if (defined('WP_DEBUG') && WP_DEBUG) {
1442 + error_log("Brave API key is missing.");
1443 + }
1444 +*/
1445 +
1446 + $this->fallbackResponse = [
2652 1447 'text' => __("API key is not configured. Please set it in the Brave Search Settings.", 'mxchat'),
2653 1448 'html' => "",
2654 - );
1449 + ];
1450 + return;
2655 1451 }
2656 1452
2657 1453 $image_count = isset($options['brave_image_count']) ? intval($options['brave_image_count']) : 4;
2658 1454 $safe_search = isset($options['brave_safe_search']) ? sanitize_text_field($options['brave_safe_search']) : 'strict';
@@ -2663,8 +1459,16 @@
2663 1459 'count' => $image_count,
2664 1460 'safesearch' => $safe_search,
2665 1461 ], $api_url);
2666 1462
1463 +/*
1464 + // Log the final API URL for the search
1465 + if (defined('WP_DEBUG') && WP_DEBUG) {
1466 + error_log("Final API URL for Brave Image Search: " . esc_url_raw($api_url));
1467 + }
1468 +*/
1469 +
1470 +
2667 1471 // Implement caching
2668 1472 $transient_key = 'mxchat_image_search_' . md5($refined_search_query);
2669 1473 $body = get_transient($transient_key);
2670 1474
@@ -2677,16 +1481,22 @@
2677 1481 ],
2678 1482 'timeout' => 10,
2679 1483 ];
2680 1484
2681 - // SECURITY FIX: Changed to wp_safe_remote_get
2682 - $response = wp_safe_remote_get($api_url, $args);
1485 + $response = wp_remote_get($api_url, $args);
2683 1486
2684 1487 if (is_wp_error($response)) {
2685 - return array(
1488 +/*
1489 + if (defined('WP_DEBUG') && WP_DEBUG) {
1490 + error_log("Brave Image API request failed: " . $response->get_error_message());
1491 + }
1492 +*/
1493 +
1494 + $this->fallbackResponse = [
2686 1495 'text' => __("I'm sorry, I couldn't retrieve any images based on your request.", 'mxchat'),
2687 1496 'html' => "",
2688 - );
1497 + ];
1498 + return;
2689 1499 }
2690 1500
2691 1501 $body = json_decode(wp_remote_retrieve_body($response), true);
2692 1502 set_transient($transient_key, $body, HOUR_IN_SECONDS);
@@ -2694,16 +1504,10 @@
2694 1504
2695 1505 // Process the API response
2696 1506 if (isset($body['results']) && is_array($body['results']) && count($body['results']) > 0) {
2697 1507 $html_output = '<div class="mxchat-image-gallery">';
2698 -
2699 - // Get the configured image count (1-6)
2700 - $display_count = isset($options['brave_image_count']) ? intval($options['brave_image_count']) : 4;
2701 - $display_count = min($display_count, count($body['results'])); // Make sure we don't exceed available images
2702 -
2703 - // Use only the requested number of images
2704 - for ($i = 0; $i < $display_count; $i++) {
2705 - $image = $body['results'][$i];
1508 +
1509 + foreach ($body['results'] as $image) {
2706 1510 $image_url = isset($image['url']) ? esc_url($image['url']) : '';
2707 1511 $thumbnail_url = isset($image['thumbnail']['src']) ? esc_url($image['thumbnail']['src']) : '';
2708 1512 $title = isset($image['title']) ? esc_html($image['title']) : esc_html__('Image', 'mxchat');
2709 1513
@@ -2717,95 +1521,47 @@
2717 1521 }
2718 1522
2719 1523 $html_output .= '</div>';
2720 1524
2721 - // Create response text
2722 - $response_text = sprintf(__("Here are some images of %s:", 'mxchat'), $refined_search_query);
2723 -
2724 - // Save both response text and HTML to chat history
2725 - $this->mxchat_save_chat_message($session_id, 'bot', $response_text);
1525 + $this->fallbackResponse = [
1526 + 'text' => "",
1527 + 'html' => $html_output,
1528 + ];
1529 +
1530 + // Save response in chat history
2726 1531 $this->mxchat_save_chat_message($session_id, 'bot', $html_output);
2727 1532
2728 - // Return the combined response
2729 - return array(
2730 - 'text' => $response_text,
2731 - 'html' => $html_output,
2732 - );
2733 1533 } else {
2734 - $response_text = __("I'm sorry, I couldn't retrieve any images based on your request.", 'mxchat');
2735 -
2736 - // Save the error message to chat history
2737 - $this->mxchat_save_chat_message($session_id, 'bot', $response_text);
2738 -
2739 - return array(
2740 - 'text' => $response_text,
1534 +/*
1535 + if (defined('WP_DEBUG') && WP_DEBUG) {
1536 + error_log("Brave Image API response did not contain expected data structure or was empty: " . print_r($body, true));
1537 + }
1538 +*/
1539 +
1540 + $this->fallbackResponse = [
1541 + 'text' => __("I'm sorry, I couldn't retrieve any images based on your request.", 'mxchat'),
2741 1542 'html' => "",
2742 - );
1543 + ];
2743 1544 }
2744 1545 }
2745 -
2746 -/**
2747 - * Interpret the search query using the user's selected AI model
2748 - *
2749 - * @param string $user_query The original query from the user
2750 - * @return string The refined search query
2751 - */
2752 1546 public function mxchat_interpret_search_query($user_query) {
2753 1547 $system_prompt = esc_html__("Interpret the user's request to provide only the essential keywords or phrases for image searching. Remove conversational language, politeness, or extra context. Return a concise search query that doesn't lose any of the original meaning.", 'mxchat');
2754 -
2755 - // Get options and determine the selected model
2756 - $options = $this->options ?? get_option('mxchat_options');
2757 - $selected_model = isset($options['model']) ? $options['model'] : 'gpt-5.1-chat-latest';
2758 -
2759 - // Extract model prefix to determine the provider
2760 - $model_parts = explode('-', $selected_model);
2761 - $provider = strtolower($model_parts[0]);
2762 -
2763 - // Determine which API key to use based on the provider
2764 - switch ($provider) {
2765 - case 'gemini':
2766 - $api_key = isset($options['gemini_api_key']) ? sanitize_text_field($options['gemini_api_key']) : '';
2767 - if (empty($api_key)) {
2768 - return sanitize_text_field($user_query); // Default to original query if API key missing
2769 - }
2770 - return $this->interpret_query_with_gemini($user_query, $system_prompt, $api_key, $selected_model);
2771 -
2772 - case 'claude':
2773 - $api_key = isset($options['claude_api_key']) ? sanitize_text_field($options['claude_api_key']) : '';
2774 - if (empty($api_key)) {
2775 - return sanitize_text_field($user_query);
2776 - }
2777 - return $this->interpret_query_with_claude($user_query, $system_prompt, $api_key, $selected_model);
2778 -
2779 - case 'grok':
2780 - $api_key = isset($options['xai_api_key']) ? sanitize_text_field($options['xai_api_key']) : '';
2781 - if (empty($api_key)) {
2782 - return sanitize_text_field($user_query);
2783 - }
2784 - return $this->interpret_query_with_xai($user_query, $system_prompt, $api_key, $selected_model);
2785 -
2786 - case 'deepseek':
2787 - $api_key = isset($options['deepseek_api_key']) ? sanitize_text_field($options['deepseek_api_key']) : '';
2788 - if (empty($api_key)) {
2789 - return sanitize_text_field($user_query);
2790 - }
2791 - return $this->interpret_query_with_deepseek($user_query, $system_prompt, $api_key, $selected_model);
2792 -
2793 - case 'gpt':
2794 - default:
2795 - // Default to OpenAI for custom models or unrecognized prefixes
2796 - $api_key = isset($options['api_key']) ? sanitize_text_field($options['api_key']) : '';
2797 - if (empty($api_key)) {
2798 - return sanitize_text_field($user_query);
2799 - }
2800 - return $this->interpret_query_with_openai($user_query, $system_prompt, $api_key, $selected_model);
1548 +
1549 + // Retrieve OpenAI API key using 'api_key' as the option key
1550 + $api_key = isset($this->options['api_key']) ? sanitize_text_field($this->options['api_key']) : sanitize_text_field(get_option('mxchat_options')['api_key']);
1551 +
1552 + /*
1553 + // Log the API key check, without exposing the key
1554 + if (defined('WP_DEBUG') && WP_DEBUG) {
1555 + error_log("Retrieved OpenAI API Key: " . ($api_key ? "Present" : "Missing"));
2801 1556 }
2802 -}
1557 + */
2803 1558
2804 -/**
2805 - * Interpret query using OpenAI models
2806 - */
2807 -private function interpret_query_with_openai($user_query, $system_prompt, $api_key, $model = 'gpt-5.1-chat-latest') {
1559 + if (empty($api_key)) {
1560 + //error_log("OpenAI API key is missing.");
1561 + return sanitize_text_field($user_query); // Default to the original query if API key is missing
1562 + }
1563 +
2808 1564 $url = 'https://api.openai.com/v1/chat/completions';
2809 1565 $args = [
2810 1566 'headers' => [
2811 1567 'Authorization' => 'Bearer ' . $api_key,
@@ -2811,9 +1567,9 @@
2811 1567 'Authorization' => 'Bearer ' . $api_key,
2812 1568 'Content-Type' => 'application/json',
2813 1569 ],
2814 1570 'body' => wp_json_encode([
2815 - 'model' => $model,
1571 + 'model' => 'gpt-3.5-turbo',
2816 1572 'messages' => [
2817 1573 ['role' => 'system', 'content' => $system_prompt],
2818 1574 ['role' => 'user', 'content' => sanitize_text_field($user_query)],
2819 1575 ],
@@ -2820,178 +1576,166 @@
2820 1576 'temperature' => 0.2,
2821 1577 'max_tokens' => 20,
2822 1578 ]),
2823 1579 'method' => 'POST',
2824 - 'timeout' => 15,
2825 1580 ];
2826 1581
2827 1582 $response = wp_remote_post($url, $args);
1583 +
2828 1584 if (is_wp_error($response)) {
2829 - return sanitize_text_field($user_query);
1585 + //error_log("OpenAI request failed: " . $response->get_error_message());
1586 + return sanitize_text_field($user_query); // Fallback to the original query if there's an error
2830 1587 }
2831 1588
2832 1589 $body = json_decode(wp_remote_retrieve_body($response), true);
2833 - return isset($body['choices'][0]['message']['content'])
2834 - ? sanitize_text_field(trim($body['choices'][0]['message']['content']))
2835 - : sanitize_text_field($user_query);
1590 +
1591 + // Check for a valid response and sanitize output
1592 + if (isset($body['choices'][0]['message']['content'])) {
1593 + $interpreted_query = sanitize_text_field(trim($body['choices'][0]['message']['content']));
1594 +
1595 + /*
1596 + // Log the interpreted query for debugging
1597 + if (defined('WP_DEBUG') && WP_DEBUG) {
1598 + error_log("Interpreted search query: " . $interpreted_query);
1599 + }
1600 + */
1601 +
1602 + return $interpreted_query;
1603 + } else {
1604 + //error_log("Unexpected API response format: " . print_r($body, true));
1605 + return sanitize_text_field($user_query);
1606 + }
2836 1607 }
2837 1608
2838 -/**
2839 - * Interpret query using Claude models
2840 - */
2841 -private function interpret_query_with_claude($user_query, $system_prompt, $api_key, $model) {
2842 - $url = 'https://api.anthropic.com/v1/messages';
2843 -
2844 - $args = [
2845 - 'headers' => [
2846 - 'Content-Type' => 'application/json',
2847 - 'x-api-key' => $api_key,
2848 - 'anthropic-version' => '2023-06-01',
2849 - ],
2850 - 'body' => wp_json_encode([
2851 - 'model' => $model,
2852 - 'system' => $system_prompt,
2853 - 'messages' => [
2854 - ['role' => 'user', 'content' => sanitize_text_field($user_query)]
2855 - ],
2856 - 'max_tokens' => 20,
2857 - 'temperature' => 0.2,
2858 - ]),
2859 - 'method' => 'POST',
2860 - 'timeout' => 15,
2861 - ];
2862 1609
2863 - $response = wp_remote_post($url, $args);
2864 - if (is_wp_error($response)) {
2865 - return sanitize_text_field($user_query);
1610 +
1611 +private function find_product_in_message($message) {
1612 + global $wpdb;
1613 +
1614 + // Get embedding for the search query
1615 + $query_embedding = $this->mxchat_generate_embedding($message, $this->options['api_key']);
1616 + if (!is_array($query_embedding)) {
1617 + return null;
2866 1618 }
2867 1619
2868 - $body = json_decode(wp_remote_retrieve_body($response), true);
2869 - if (!empty($body['content'][0]['text'])) {
2870 - return sanitize_text_field(trim($body['content'][0]['text']));
1620 + // Get relevant content as string
1621 + $relevant_content = $this->mxchat_find_relevant_products($query_embedding);
1622 + if (empty($relevant_content)) {
1623 + // Return null to indicate no results and set fallback response
1624 + $this->fallbackResponse['text'] = esc_html__("I couldn't find any relevant products based on your query. Could you please be more specific about the product you're looking for?", 'mxchat');
1625 + return null;
2871 1626 }
2872 -
2873 - return sanitize_text_field($user_query);
2874 -}
2875 1627
2876 -/**
2877 - * Interpret query using Gemini models
2878 - */
2879 -private function interpret_query_with_gemini($user_query, $system_prompt, $api_key, $model) {
2880 - // Use v1beta for preview models, v1 for stable models
2881 - $api_version = (strpos($model, 'preview') !== false || strpos($model, 'exp') !== false) ? 'v1beta' : 'v1';
1628 + // Extract product URLs from the content
1629 + preg_match_all('/https?:\/\/[^\s<>"\']+?\/product\/[^\s<>"\']+/', $relevant_content, $matches);
2882 1630
2883 - $url = "https://generativelanguage.googleapis.com/{$api_version}/models/{$model}:generateContent?key=" . urlencode($api_key);
2884 -
2885 - $args = [
2886 - 'headers' => [
2887 - 'Content-Type' => 'application/json',
2888 - ],
2889 - 'body' => wp_json_encode([
2890 - 'contents' => [
2891 - [
2892 - 'role' => 'user',
2893 - 'parts' => [
2894 - ['text' => $system_prompt . "\n\nQuery: " . sanitize_text_field($user_query)]
2895 - ]
2896 - ]
2897 - ],
2898 - 'generationConfig' => [
2899 - 'temperature' => 0.2,
2900 - 'maxOutputTokens' => 20,
2901 - ],
2902 - ]),
2903 - 'method' => 'POST',
2904 - 'timeout' => 15,
2905 - ];
2906 -
2907 - $response = wp_remote_post($url, $args);
2908 - if (is_wp_error($response)) {
2909 - return sanitize_text_field($user_query);
1631 + if (!empty($matches[0])) {
1632 + // Try each URL found
1633 + foreach ($matches[0] as $url) {
1634 + // Clean the URL
1635 + $url = rtrim($url, '/."\']');
1636 +
1637 + // Get the product slug
1638 + $path = parse_url($url, PHP_URL_PATH);
1639 + $slug = basename(rtrim($path, '/'));
1640 +
1641 + // Find product by slug
1642 + $args = array(
1643 + 'post_type' => 'product',
1644 + 'post_status' => 'publish',
1645 + 'name' => $slug,
1646 + 'posts_per_page' => 1
1647 + );
1648 +
1649 + $products = get_posts($args);
1650 +
1651 + if (!empty($products)) {
1652 + $product_id = $products[0]->ID;
1653 + $product = wc_get_product($product_id);
1654 +
1655 + if ($product && $product->is_purchasable()) {
1656 + return $product_id;
1657 + }
1658 + }
1659 + }
2910 1660 }
2911 -
2912 - $body = json_decode(wp_remote_retrieve_body($response), true);
2913 - if (!empty($body['candidates'][0]['content']['parts'][0]['text'])) {
2914 - return sanitize_text_field(trim($body['candidates'][0]['content']['parts'][0]['text']));
1661 +
1662 + // Fallback: Look for product names in the content
1663 + $products = wc_get_products([
1664 + 'status' => 'publish',
1665 + 'limit' => -1,
1666 + 'return' => 'all'
1667 + ]);
1668 +
1669 + foreach ($products as $product) {
1670 + $name = $product->get_name();
1671 + if (stripos($relevant_content, $name) !== false) {
1672 + if ($product->is_purchasable()) {
1673 + return $product->get_id();
1674 + }
1675 + }
2915 1676 }
2916 -
2917 - return sanitize_text_field($user_query);
1677 +
1678 + // If no product is found after all checks, set the fallback response
1679 + $this->fallbackResponse['text'] = esc_html__("I couldn't find any relevant products based on your query. Try to be more specific", 'mxchat');
1680 + return null;
2918 1681 }
2919 1682
2920 -/**
2921 - * Interpret query using X.AI (Grok) models
2922 - */
2923 -private function interpret_query_with_xai($user_query, $system_prompt, $api_key, $model) {
2924 - $url = 'https://api.xai.com/v1/chat/completions';
2925 -
2926 - $args = [
2927 - 'headers' => [
2928 - 'Content-Type' => 'application/json',
2929 - 'Authorization' => 'Bearer ' . $api_key,
2930 - ],
2931 - 'body' => wp_json_encode([
2932 - 'model' => $model,
2933 - 'messages' => [
2934 - ['role' => 'system', 'content' => $system_prompt],
2935 - ['role' => 'user', 'content' => sanitize_text_field($user_query)],
2936 - ],
2937 - 'temperature' => 0.2,
2938 - 'max_tokens' => 20,
2939 - ]),
2940 - 'method' => 'POST',
2941 - 'timeout' => 15,
2942 - ];
2943 -
2944 - $response = wp_remote_post($url, $args);
2945 - if (is_wp_error($response)) {
2946 - return sanitize_text_field($user_query);
2947 - }
2948 -
2949 - $body = json_decode(wp_remote_retrieve_body($response), true);
2950 - if (isset($body['choices'][0]['message']['content'])) {
2951 - return sanitize_text_field(trim($body['choices'][0]['message']['content']));
2952 - }
2953 -
2954 - return sanitize_text_field($user_query);
1683 +// New method to handle intent responses
1684 +private function generate_intent_response($context_content, $session_id) {
1685 + // Convert the context array to a structured string for the AI
1686 + $context_string = $this->format_intent_context($context_content);
1687 +
1688 + // Generate AI response using the context
1689 + $response = $this->mxchat_generate_response(
1690 + $context_string,
1691 + $this->options['api_key'],
1692 + $this->options['xai_api_key'],
1693 + $this->options['claude_api_key'],
1694 + $this->options['deepseek_api_key'],
1695 + $this->mxchat_fetch_conversation_history_for_ai($session_id)
1696 + );
1697 +
1698 + $this->fallbackResponse['text'] = $response;
1699 + return true;
2955 1700 }
1701 +// Helper method to format intent context
1702 +private function format_intent_context($context) {
1703 + $context_string = esc_html__("INTENT CONTEXT:\n", 'mxchat');
2956 1704
2957 -/**
2958 - * Interpret query using DeepSeek models
2959 - */
2960 -private function interpret_query_with_deepseek($user_query, $system_prompt, $api_key, $model) {
2961 - $url = 'https://api.deepseek.com/v1/chat/completions';
2962 -
2963 - $args = [
2964 - 'headers' => [
2965 - 'Content-Type' => 'application/json',
2966 - 'Authorization' => 'Bearer ' . $api_key,
2967 - ],
2968 - 'body' => wp_json_encode([
2969 - 'model' => $model,
2970 - 'messages' => [
2971 - ['role' => 'system', 'content' => $system_prompt],
2972 - ['role' => 'user', 'content' => sanitize_text_field($user_query)],
2973 - ],
2974 - 'temperature' => 0.2,
2975 - 'max_tokens' => 20,
2976 - ]),
2977 - 'method' => 'POST',
2978 - 'timeout' => 15,
2979 - ];
2980 -
2981 - $response = wp_remote_post($url, $args);
2982 - if (is_wp_error($response)) {
2983 - return sanitize_text_field($user_query);
1705 + switch ($context['intent']) {
1706 + case 'add_to_cart':
1707 + if ($context['status'] === 'success') {
1708 + $context_string .= esc_html__("Action: Successfully added product to cart\n", 'mxchat');
1709 + $context_string .= sprintf(esc_html__("Product: %s\n", 'mxchat'), $context['product']['name']);
1710 + $context_string .= esc_html__("Available actions: ", 'mxchat') . implode(', ', $context['available_actions']) . "\n";
1711 + $context_string .= sprintf(esc_html__("Cart URL: %s\n", 'mxchat'), $context['cart_url']);
1712 + $context_string .= esc_html__("\nPlease inform the user of the successful addition and their available options.", 'mxchat');
1713 + } else {
1714 + $context_string .= esc_html__("Action: Failed to add product to cart\n", 'mxchat');
1715 + $context_string .= sprintf(esc_html__("Reason: %s\n", 'mxchat'), $context['reason']);
1716 + switch ($context['reason']) {
1717 + case 'woocommerce_not_available':
1718 + $context_string .= esc_html__("\nPlease inform the user that shopping features are not available.", 'mxchat');
1719 + break;
1720 + case 'no_product_context':
1721 + $context_string .= esc_html__("\nPlease ask the user to specify which product they want to add.", 'mxchat');
1722 + break;
1723 + case 'product_not_found':
1724 + $context_string .= esc_html__("\nPlease inform the user that the product couldn't be found and ask them to try again.", 'mxchat');
1725 + break;
1726 + case 'add_to_cart_failed':
1727 + $context_string .= esc_html__("\nPlease apologize to the user and suggest they try again or ask for assistance.", 'mxchat');
1728 + break;
1729 + }
1730 + }
1731 + break;
2984 1732 }
2985 -
2986 - $body = json_decode(wp_remote_retrieve_body($response), true);
2987 - if (isset($body['choices'][0]['message']['content'])) {
2988 - return sanitize_text_field(trim($body['choices'][0]['message']['content']));
2989 - }
2990 -
2991 - return sanitize_text_field($user_query);
1733 +
1734 + return $context_string;
2992 1735 }
2993 1736
1737 +
2994 1738 //very good
2995 1739 private function add_email_to_loops($email) {
2996 1740 // Sanitize the email
2997 1741 $email = sanitize_email($email);
@@ -3075,209 +1819,95 @@
3075 1819
3076 1820 // Default to proceeding with conversation if no specific PDF action is needed
3077 1821 $this->fallbackResponse['text'] = '';
3078 1822 }
3079 -
3080 -
3081 -/**
3082 - * Enhanced fetch_and_split_pdf_pages with SSRF protection
3083 - */
3084 1823 private function fetch_and_split_pdf_pages($pdf_source, $max_pages) {
3085 - // CLEAR DEBUG LOGGING
3086 - //error_log("=== MXCHAT PDF PROCESSING START ===");
3087 - //error_log("PDF Source: " . $pdf_source);
3088 - //error_log("Max Pages: " . $max_pages);
3089 - //error_log("Session ID: " . ($this->session_id ?? 'not set'));
3090 -
3091 - // Check if Advanced Claude Toolbar is available and enabled
3092 - $claude_available = function_exists('mxchatACT_is_advanced_claude_enabled');
3093 - $claude_enabled = $claude_available ? mxchatACT_is_advanced_claude_enabled() : false;
3094 -
3095 - //error_log("Claude Function Available: " . ($claude_available ? 'YES' : 'NO'));
3096 - //error_log("Claude Enabled: " . ($claude_enabled ? 'YES' : 'NO'));
3097 -
3098 - if ($claude_available && $claude_enabled) {
3099 - //error_log("🚀 ATTEMPTING CLAUDE PROCESSING...");
3100 -
3101 - // Attempt Claude processing first
3102 - $claude_result = apply_filters('mxchat_process_pdf_advanced', false, $pdf_source, $max_pages, $this->session_id);
3103 -
3104 - if ($claude_result !== false && is_array($claude_result) && !empty($claude_result)) {
3105 - //error_log("✅ CLAUDE PROCESSING SUCCESSFUL!");
3106 - //error_log("Claude returned " . count($claude_result) . " processed pages");
3107 -
3108 - // Log first page details for verification
3109 - if (isset($claude_result[0])) {
3110 - $first_page = $claude_result[0];
3111 - //error_log("First page enhanced: " . (isset($first_page['enhanced']) && $first_page['enhanced'] ? 'YES' : 'NO'));
3112 - //error_log("Processing method: " . ($first_page['processing_method'] ?? 'not set'));
3113 - //error_log("First page text preview: " . substr($first_page['text'] ?? '', 0, 100) . "...");
3114 - }
3115 -
3116 - //error_log("=== MXCHAT PDF PROCESSING END (CLAUDE) ===");
3117 - return $claude_result;
3118 - } else {
3119 - //error_log("❌ CLAUDE PROCESSING FAILED or returned invalid result");
3120 - //error_log("Claude result type: " . gettype($claude_result));
3121 - if (is_array($claude_result)) {
3122 - //error_log("Claude result count: " . count($claude_result));
3123 - }
3124 - }
3125 - }
3126 -
3127 - // Fallback to basic processing
3128 - //error_log("🔄 FALLING BACK TO BASIC PDF PROCESSING...");
3129 -
3130 1824 $upload_dir = wp_upload_dir();
3131 1825 $temp_file = null;
3132 -
1826 +
3133 1827 try {
3134 - // Your existing basic processing code here...
3135 - // (I'll include the key parts with debug logging)
3136 -
1828 + // Handle URL vs local file
3137 1829 if (filter_var($pdf_source, FILTER_VALIDATE_URL)) {
3138 - //error_log("Downloading PDF from URL...");
3139 -
3140 - // SECURITY FIX: Validate URL before processing
3141 - if (!$this->mxchat_is_safe_pdf_url($pdf_source)) {
3142 - //error_log("❌ SECURITY: Blocked unsafe PDF URL");
1830 + // Validate and download the file from URL
1831 + $temp_file = wp_tempnam($pdf_source); // Safe temporary file name
1832 + $response = wp_remote_get($pdf_source, ['timeout' => 60]);
1833 +
1834 + if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
1835 + //error_log(esc_html__("Failed to download PDF. Error: ", 'mxchat') . print_r($response, true));
3143 1836 return false;
3144 1837 }
3145 -
3146 - $temp_file = wp_tempnam($pdf_source);
3147 -
3148 - // SECURITY FIX: Changed from wp_remote_get to wp_safe_remote_get
3149 - $response = wp_safe_remote_get($pdf_source, [
3150 - 'timeout' => 60,
3151 - 'headers' => ['User-Agent' => 'MxChat PDF Processor']
3152 - ]);
3153 -
3154 - if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) {
3155 - $error_message = is_wp_error($response) ? $response->get_error_message() : 'HTTP ' . wp_remote_retrieve_response_code($response);
3156 - //error_log("❌ BASIC PROCESSING: Failed to download PDF: " . $error_message);
1838 +
1839 + file_put_contents($temp_file, wp_remote_retrieve_body($response));
1840 +
1841 + // Validate that the downloaded file is a PDF
1842 + $mime_type = mime_content_type($temp_file);
1843 + if ($mime_type !== 'application/pdf') {
1844 + //error_log(esc_html__("Invalid MIME type detected for PDF: ", 'mxchat') . $mime_type);
1845 + unlink($temp_file);
3157 1846 return false;
3158 1847 }
3159 -
3160 - global $wp_filesystem;
3161 - if (empty($wp_filesystem)) {
3162 - require_once ABSPATH . 'wp-admin/includes/file.php';
3163 - WP_Filesystem();
3164 - }
3165 - $wp_filesystem->put_contents($temp_file, wp_remote_retrieve_body($response), FS_CHMOD_FILE);
3166 - //error_log("✅ PDF downloaded successfully");
3167 1848 } else {
1849 + // For local files, use the provided path directly
3168 1850 $temp_file = $pdf_source;
3169 - //error_log("Using local PDF file: " . $temp_file);
3170 1851 }
3171 -
3172 - // Parse PDF
3173 - //error_log("Parsing PDF with basic parser...");
3174 - mxchat_load_pdf_parser();
1852 +
1853 + // Parse and process the PDF
3175 1854 $parser = new \Smalot\PdfParser\Parser();
3176 1855 $pdf = $parser->parseFile($temp_file);
3177 1856 $pages = $pdf->getPages();
3178 -
3179 - //error_log("PDF contains " . count($pages) . " pages");
3180 -
1857 +
3181 1858 if (count($pages) > $max_pages) {
3182 - //error_log("❌ BASIC PROCESSING: Too many pages (" . count($pages) . " > " . $max_pages . ")");
3183 - if (filter_var($pdf_source, FILTER_VALIDATE_URL) && $temp_file) {
1859 + //error_log(esc_html__("PDF exceeds the maximum allowed pages: ", 'mxchat') . count($pages));
1860 + if (filter_var($pdf_source, FILTER_VALIDATE_URL)) {
3184 1861 unlink($temp_file);
3185 1862 }
3186 - return 'too_many_pages';
1863 + return esc_html__('too_many_pages', 'mxchat');
3187 1864 }
3188 -
1865 +
3189 1866 $embeddings = [];
3190 - $processed_pages = 0;
3191 -
3192 1867 foreach ($pages as $page_number => $page) {
3193 1868 $text = $page->getText();
3194 -
1869 +
1870 + // Ensure text is non-empty before generating embeddings
3195 1871 if (empty(trim($text))) {
3196 - //error_log("Skipping empty page: " . ($page_number + 1));
1872 + //error_log(esc_html__("Skipping empty page: ", 'mxchat') . ($page_number + 1));
3197 1873 continue;
3198 1874 }
3199 -
3200 - $text = $this->mxchat_clean_text($text);
3201 -
1875 +
3202 1876 $embedding = $this->mxchat_generate_embedding(
3203 - __("Page ", 'mxchat') . ($page_number + 1) . ": " . $text,
1877 + esc_html__("Page ", 'mxchat') . ($page_number + 1) . ": " . $text,
3204 1878 $this->options['api_key']
3205 1879 );
3206 -
1880 +
3207 1881 if ($embedding) {
3208 1882 $embeddings[] = [
3209 1883 'page_number' => $page_number + 1,
3210 1884 'embedding' => $embedding,
3211 1885 'text' => $text,
3212 - 'enhanced' => false, // CLEARLY MARK AS BASIC
3213 - 'processing_method' => 'basic_pdf_parser'
3214 1886 ];
3215 - $processed_pages++;
1887 + } else {
1888 + //error_log(esc_html__("Failed to generate embedding for page ", 'mxchat') . ($page_number + 1));
3216 1889 }
3217 1890 }
3218 -
3219 - //error_log("✅ BASIC PROCESSING COMPLETE: " . $processed_pages . " pages processed");
3220 -
3221 - // Cleanup
3222 - if (filter_var($pdf_source, FILTER_VALIDATE_URL) && $temp_file && file_exists($temp_file)) {
1891 +
1892 + // Clean up downloaded file if it was from URL
1893 + if (filter_var($pdf_source, FILTER_VALIDATE_URL) && $temp_file) {
3223 1894 unlink($temp_file);
3224 1895 }
3225 -
3226 - //error_log("=== MXCHAT PDF PROCESSING END (BASIC) ===");
1896 +
3227 1897 return $embeddings;
3228 -
1898 +
3229 1899 } catch (\Exception $e) {
3230 - //error_log("❌ BASIC PROCESSING ERROR: " . $e->getMessage());
1900 + // error_log(esc_html__("Error parsing or processing PDF: ", 'mxchat') . $e->getMessage());
1901 +
1902 + // Cleanup in case of exception
3231 1903 if (filter_var($pdf_source, FILTER_VALIDATE_URL) && $temp_file && file_exists($temp_file)) {
3232 1904 unlink($temp_file);
3233 1905 }
3234 - //error_log("=== MXCHAT PDF PROCESSING END (ERROR) ===");
3235 - return false;
3236 - }
3237 -}
3238 1906
3239 -
3240 -/**
3241 - * Validate PDF URL for security
3242 - * Prevents SSRF attacks by blocking dangerous URLs
3243 - */
3244 -
3245 -private function mxchat_is_safe_pdf_url($url) {
3246 - // Use WordPress core function for comprehensive validation
3247 - // This blocks localhost, private IPs, and reserved IP ranges
3248 - $validated_url = wp_http_validate_url($url);
3249 -
3250 - if ($validated_url === false) {
3251 1907 return false;
3252 1908 }
3253 -
3254 - // Additional check: only allow HTTP/HTTPS schemes
3255 - $parsed = parse_url($url);
3256 - if (!isset($parsed['scheme']) || !in_array($parsed['scheme'], ['http', 'https'], true)) {
3257 - return false;
3258 - }
3259 -
3260 - return true;
3261 1909 }
3262 -
3263 -
3264 -private function mxchat_clean_text($text) {
3265 - // Remove excessive whitespace
3266 - $text = preg_replace('/\s+/', ' ', $text);
3267 -
3268 - // Remove control characters except newlines and tabs
3269 - $text = preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]/', '', $text);
3270 -
3271 - // Normalize line endings
3272 - $text = str_replace(["\r\n", "\r"], "\n", $text);
3273 -
3274 - // Trim whitespace
3275 - $text = trim($text);
3276 -
3277 - return $text;
3278 -}
3279 -
3280 1910 private function find_relevant_pdf_pages($query_embedding, $embeddings) {
3281 1911 //error_log(esc_html__("find_relevant_pdf_pages called.", 'mxchat'));
3282 1912
3283 1913 $most_relevant = null;
@@ -3300,10 +1930,9 @@
3300 1930 }
3301 1931
3302 1932 return [];
3303 1933 }
3304 -
3305 -
1934 +// Add this to your class
3306 1935 public function handle_pdf_upload() {
3307 1936 check_ajax_referer('mxchat_chat_nonce', 'nonce');
3308 1937
3309 1938 if (!isset($_FILES['pdf_file']) || !isset($_POST['session_id'])) {
@@ -3310,29 +1939,12 @@
3310 1939 wp_send_json_error(esc_html__('Missing required parameters.', 'mxchat'));
3311 1940 return;
3312 1941 }
3313 1942
3314 - // SECURITY FIX: Check if PDF uploads are enabled in settings
3315 - $options = get_option('mxchat_options', array());
3316 - $show_pdf_button = isset($options['show_pdf_upload_button']) ? $options['show_pdf_upload_button'] : 'on';
3317 -
3318 - if ($show_pdf_button !== 'on') {
3319 - wp_send_json_error(esc_html__('PDF uploads are currently disabled.', 'mxchat'));
3320 - return;
3321 - }
3322 -
3323 1943 $file = $_FILES['pdf_file'];
3324 1944 $session_id = sanitize_text_field($_POST['session_id']);
3325 1945 $original_filename = sanitize_text_field($file['name']);
3326 1946
3327 - // Update session owner if it changed (e.g. IP changed due to network switch)
3328 - $current_user_identifier = MxChat_User::mxchat_get_user_identifier();
3329 - $session_owner = get_option("mxchat_session_owner_{$session_id}");
3330 -
3331 - if (!$session_owner || $session_owner !== $current_user_identifier) {
3332 - update_option("mxchat_session_owner_{$session_id}", $current_user_identifier, 'no');
3333 - }
3334 -
3335 1947 $file_type = wp_check_filetype($file['name'], ['pdf' => 'application/pdf']);
3336 1948 if ($file_type['type'] !== 'application/pdf') {
3337 1949 wp_send_json_error(esc_html__('Invalid file type. Only PDF files are allowed.', 'mxchat'));
3338 1950 return;
@@ -3338,12 +1950,9 @@
3338 1950 return;
3339 1951 }
3340 1952
3341 1953 $upload_dir = wp_upload_dir();
3342 -
3343 - // SECURITY FIX: Generate random filename without exposing session_id
3344 - $random_string = wp_generate_password(20, false, false); // 20 char alphanumeric string
3345 - $pdf_filename = 'mxchat_' . $random_string . '_' . time() . '.pdf';
1954 + $pdf_filename = 'mxchat_' . $session_id . '_' . time() . '.pdf';
3346 1955 $pdf_path = $upload_dir['path'] . '/' . $pdf_filename;
3347 1956
3348 1957 if (!move_uploaded_file($file['tmp_name'], $pdf_path)) {
3349 1958 wp_send_json_error(esc_html__('Failed to upload file.', 'mxchat'));
@@ -3374,9 +1983,8 @@
3374 1983 return;
3375 1984 }
3376 1985
3377 1986 if (!empty($embeddings)) {
3378 - // Store the mapping between session and the random filename
3379 1987 set_transient('mxchat_pdf_url_' . $session_id, $pdf_path, HOUR_IN_SECONDS);
3380 1988 set_transient('mxchat_pdf_filename_' . $session_id, $original_filename, HOUR_IN_SECONDS);
3381 1989 set_transient('mxchat_pdf_embeddings_' . $session_id, $embeddings, HOUR_IN_SECONDS);
3382 1990 set_transient('mxchat_include_pdf_in_context_' . $session_id, true, HOUR_IN_SECONDS);
@@ -3420,8 +2028,10 @@
3420 2028 wp_die();
3421 2029 }
3422 2030
3423 2031
2032 +
2033 +
3424 2034 function mxchat_fetch_new_messages() {
3425 2035 $session_id = sanitize_text_field($_POST['session_id']);
3426 2036 $last_seen_id = sanitize_text_field($_POST['last_seen_id']);
3427 2037 $persistence_enabled = $_POST['persistence_enabled'] === 'true';
@@ -3434,31 +2044,14 @@
3434 2044 }
3435 2045
3436 2046 $history = get_option("mxchat_history_{$session_id}", []);
3437 2047
3438 - //error_log("MxChat WhatsApp DEBUG: Fetch new messages for session {$session_id}");
3439 - //error_log("MxChat WhatsApp DEBUG: last_seen_id = " . var_export($last_seen_id, true));
3440 - //error_log("MxChat WhatsApp DEBUG: History count = " . count($history));
3441 - //error_log("MxChat WhatsApp DEBUG: Full history = " . print_r($history, true));
3442 -
3443 2048 $new_messages = array_filter($history, function ($message) use ($last_seen_id, $persistence_enabled, $initial_timestamp) {
3444 - //error_log("MxChat WhatsApp DEBUG: Checking message - ID: " . ($message['id'] ?? 'NO_ID') . ", Role: " . ($message['role'] ?? 'NO_ROLE'));
3445 -
3446 2049 // If persistence is enabled, show all new messages
3447 2050 if ($persistence_enabled) {
3448 - $has_id = !empty($message['id']);
3449 - $is_agent = $message['role'] === 'agent';
3450 -
3451 - // If last_seen_id is empty, 'NaN', or invalid, show all agent messages
3452 - if (empty($last_seen_id) || $last_seen_id === 'NaN' || $last_seen_id === 'undefined') {
3453 - $is_newer = true;
3454 - } else {
3455 - $is_newer = strcmp($message['id'] ?? '', $last_seen_id) > 0;
3456 - }
3457 -
3458 - //error_log("MxChat WhatsApp DEBUG: has_id={$has_id}, is_newer={$is_newer}, is_agent={$is_agent}");
3459 -
3460 - return $has_id && $is_newer && $is_agent;
2051 + return !empty($message['id']) &&
2052 + strcmp($message['id'], $last_seen_id) > 0 &&
2053 + $message['role'] === 'agent';
3461 2054 }
3462 2055
3463 2056 // If persistence is disabled, only show messages after initial timestamp
3464 2057 return !empty($message['id']) &&
@@ -3465,19 +2058,17 @@
3465 2058 $message['role'] === 'agent' &&
3466 2059 $message['timestamp'] > $initial_timestamp;
3467 2060 });
3468 2061
3469 - //error_log("MxChat WhatsApp DEBUG: Filtered messages count = " . count($new_messages));
2062 + //error_log(esc_html__("New agent messages fetched for session $session_id. Last seen ID: $last_seen_id", 'mxchat'));
3470 2063
3471 - // Include current chat mode so frontend can detect agent→AI transitions
3472 - $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai');
3473 -
3474 2064 wp_send_json_success([
3475 - 'new_messages' => array_values($new_messages),
3476 - 'chat_mode' => $chat_mode
2065 + 'new_messages' => array_values($new_messages)
3477 2066 ]);
3478 2067 wp_die();
3479 2068 }
2069 +
2070 +
3480 2071 public function mxchat_live_agent_handover($message, $user_id, $session_id) {
3481 2072 // First check if live agents are available
3482 2073 $live_agent_available = $this->options['live_agent_status'] ?? 'off';
3483 2074 if ($live_agent_available !== 'on') {
@@ -3496,101 +2087,18 @@
3496 2087 ]);
3497 2088 wp_die();
3498 2089 }
3499 2090
3500 - $slack_bot_token = $this->options['live_agent_bot_token'] ?? '';
3501 -
3502 - if (empty($slack_bot_token)) {
2091 + $slack_webhook_url = $this->options['live_agent_webhook_url'] ?? '';
2092 + if (empty($slack_webhook_url)) {
3503 2093 return false;
3504 2094 }
3505 2095
3506 - // Check if channel already exists for this session
3507 - $channel_id = get_option("mxchat_channel_{$session_id}", '');
3508 -
3509 - if (empty($channel_id)) {
3510 - // Create new channel with session ID as name
3511 - $channel_name = $this->generate_channel_name($session_id);
3512 -
3513 - //error_log("Attempting to create channel: $channel_name");
3514 -
3515 - $response = wp_remote_post('https://slack.com/api/conversations.create', [
3516 - 'headers' => [
3517 - 'Content-Type' => 'application/json',
3518 - 'Authorization' => 'Bearer ' . $slack_bot_token
3519 - ],
3520 - 'body' => json_encode([
3521 - 'name' => $channel_name,
3522 - 'is_private' => false // Public channel - anyone in workspace can join
3523 - ])
3524 - ]);
3525 -
3526 - if (!is_wp_error($response)) {
3527 - $response_body = wp_remote_retrieve_body($response);
3528 - $response_data = json_decode($response_body, true);
3529 -
3530 - //error_log("Channel creation response: " . $response_body);
3531 -
3532 - if (isset($response_data['ok']) && $response_data['ok']) {
3533 - $channel_id = $response_data['channel']['id'];
3534 - $actual_channel_name = $response_data['channel']['name'] ?? 'unknown';
3535 - //error_log("Channel created successfully: ID=$channel_id, Name=$actual_channel_name");
3536 - update_option("mxchat_channel_{$session_id}", $channel_id);
3537 -
3538 - // Auto-invite agents to the channel
3539 - $agent_user_ids = $this->options['live_agent_user_ids'] ?? '';
3540 -
3541 - if (!empty($agent_user_ids)) {
3542 - // Parse user IDs (one per line)
3543 - $user_ids = array_filter(array_map('trim', explode("\n", $agent_user_ids)));
3544 -
3545 - foreach ($user_ids as $user_id_to_invite) {
3546 - //error_log("Inviting user to channel: $user_id_to_invite");
3547 -
3548 - $invite_response = wp_remote_post('https://slack.com/api/conversations.invite', [
3549 - 'headers' => [
3550 - 'Content-Type' => 'application/json',
3551 - 'Authorization' => 'Bearer ' . $slack_bot_token
3552 - ],
3553 - 'body' => json_encode([
3554 - 'channel' => $channel_id,
3555 - 'users' => $user_id_to_invite
3556 - ])
3557 - ]);
3558 -
3559 - if (!is_wp_error($invite_response)) {
3560 - $invite_body = wp_remote_retrieve_body($invite_response);
3561 - $invite_data = json_decode($invite_body, true);
3562 - //error_log("Invite response for $user_id_to_invite: " . $invite_body);
3563 -
3564 - if (isset($invite_data['ok']) && $invite_data['ok']) {
3565 - //error_log("Successfully invited user $user_id_to_invite to channel");
3566 - } else {
3567 - //error_log("Failed to invite user $user_id_to_invite: " . ($invite_data['error'] ?? 'Unknown error'));
3568 - }
3569 - } else {
3570 - //error_log("WP Error inviting user $user_id_to_invite: " . $invite_response->get_error_message());
3571 - }
3572 - }
3573 - } else {
3574 - //error_log("No agent user IDs configured for auto-invite");
3575 - }
3576 - } else {
3577 - //error_log("Channel creation failed: " . ($response_data['error'] ?? 'Unknown error'));
3578 - }
3579 - } else {
3580 - //error_log("WP Error creating channel: " . $response->get_error_message());
3581 - }
3582 -
3583 - if (empty($channel_id)) {
3584 - return false; // Failed to create channel
3585 - }
3586 - }
3587 -
3588 - // Get recent chat history
2096 + // Get recent chat history (last 5 messages)
3589 2097 $history = get_option("mxchat_history_{$session_id}", []);
3590 - $recent_history = array_slice($history, -5);
2098 + $recent_history = array_slice($history, -5); // Get last 5 messages
3591 2099
3592 - // Format conversation context
2100 + // Format conversation history
3593 2101 $conversation_context = "";
3594 2102 if (!empty($recent_history)) {
3595 2103 $conversation_context = "*Recent Conversation:*\n";
3596 2104 foreach ($recent_history as $hist_message) {
@@ -3601,284 +2109,84 @@
3601 2109 }
3602 2110
3603 2111 update_option("mxchat_mode_{$session_id}", 'agent');
3604 2112
3605 - // Send message to channel
3606 - $channel_message = "🔔 *New Live Agent Request*\n\n";
3607 - $channel_message .= "*Session ID:* `{$session_id}`\n";
3608 - $channel_message .= "*User ID:* `{$user_id}`\n\n";
3609 -
2113 + $webhook_data = [
2114 + 'blocks' => [
2115 + [
2116 + 'type' => 'header',
2117 + 'text' => [
2118 + 'type' => 'plain_text',
2119 + 'text' => '🔔 New Live Agent Request',
2120 + 'emoji' => true
2121 + ]
2122 + ],
2123 + [
2124 + 'type' => 'section',
2125 + 'fields' => [
2126 + [
2127 + 'type' => 'mrkdwn',
2128 + 'text' => sprintf('*User ID:*\n`%s`', $user_id)
2129 + ],
2130 + [
2131 + 'type' => 'mrkdwn',
2132 + 'text' => sprintf('*Session ID:*\n`%s`', $session_id)
2133 + ]
2134 + ]
2135 + ]
2136 + ]
2137 + ];
2138 +
2139 + // Add conversation history if exists
3610 2140 if (!empty($conversation_context)) {
3611 - $channel_message .= $conversation_context;
2141 + $webhook_data['blocks'][] = [
2142 + 'type' => 'section',
2143 + 'text' => [
2144 + 'type' => 'mrkdwn',
2145 + 'text' => $conversation_context
2146 + ]
2147 + ];
3612 2148 }
3613 -
3614 - $channel_message .= "*Current Message:*\n{$message}\n\n";
3615 - $channel_message .= "_Reply directly in this channel - all messages will go to the user_";
3616 2149
3617 - wp_remote_post('https://slack.com/api/chat.postMessage', [
2150 + // Add the current message
2151 + $webhook_data['blocks'][] = [
2152 + 'type' => 'section',
2153 + 'text' => [
2154 + 'type' => 'mrkdwn',
2155 + 'text' => sprintf('*Current Message:*\n%s', $message)
2156 + ]
2157 + ];
2158 +
2159 + // Add the reply button
2160 + $webhook_data['blocks'][] = [
2161 + 'type' => 'actions',
2162 + 'elements' => [
2163 + [
2164 + 'type' => 'button',
2165 + 'text' => [
2166 + 'type' => 'plain_text',
2167 + 'text' => '✍️ Reply',
2168 + 'emoji' => true
2169 + ],
2170 + 'value' => $session_id,
2171 + 'action_id' => 'reply_to_user',
2172 + 'style' => 'primary'
2173 + ]
2174 + ]
2175 + ];
2176 +
2177 + $response = wp_remote_post($slack_webhook_url, [
2178 + 'body' => json_encode($webhook_data),
3618 2179 'headers' => [
3619 2180 'Content-Type' => 'application/json',
3620 - 'Authorization' => 'Bearer ' . $slack_bot_token
3621 2181 ],
3622 - 'body' => json_encode([
3623 - 'channel' => $channel_id,
3624 - 'text' => $channel_message,
3625 - 'mrkdwn' => true
3626 - ])
3627 2182 ]);
3628 2183
3629 - $success_message = $this->options['live_agent_notification_message'] ?? 'Live agent has been notified.';
3630 - $this->mxchat_save_chat_message($session_id, 'bot', $success_message);
3631 -
3632 - $this->fallbackResponse = [
3633 - 'text' => $success_message,
3634 - 'html' => '',
3635 - 'images' => [],
3636 - 'chat_mode' => 'agent'
3637 - ];
3638 -
3639 - wp_send_json([
3640 - 'success' => true,
3641 - 'text' => $success_message,
3642 - 'html' => '',
3643 - 'chat_mode' => 'agent',
3644 - 'session_id' => $session_id,
3645 - 'fallbackResponse' => $this->fallbackResponse
3646 - ]);
3647 - wp_die();
3648 -}
3649 -
3650 -private function generate_channel_name($session_id) {
3651 - $email = null;
3652 - $name = null;
3653 -
3654 - // 1. First priority: Check if user is logged in and get their info
3655 - if (is_user_logged_in()) {
3656 - $current_user = wp_get_current_user();
3657 - if (!empty($current_user->user_email)) {
3658 - $email = $current_user->user_email;
3659 - //error_log("[DEBUG] Using logged-in user email for channel: {$email}");
3660 - }
3661 - if (!empty($current_user->display_name)) {
3662 - $name = $current_user->display_name;
3663 - //error_log("[DEBUG] Using logged-in user name for channel: {$name}");
3664 - }
3665 - }
3666 -
3667 - // 2. Second priority: Check for saved email/name from "require email to chat" option
3668 - if (empty($email)) {
3669 - $email_option_key = "mxchat_email_{$session_id}";
3670 - $saved_email = get_option($email_option_key);
3671 - if (!empty($saved_email)) {
3672 - $email = $saved_email;
3673 - //error_log("[DEBUG] Using saved email from session for channel: {$email}");
3674 - }
3675 - }
3676 -
3677 - if (empty($name)) {
3678 - $name_option_key = "mxchat_name_{$session_id}";
3679 - $saved_name = get_option($name_option_key);
3680 - if (!empty($saved_name)) {
3681 - $name = $saved_name;
3682 - //error_log("[DEBUG] Using saved name from session for channel: {$name}");
3683 - }
3684 - }
3685 -
3686 - // 3. Third priority: Check existing chat transcript for email/name
3687 - if (empty($email) || empty($name)) {
3688 - global $wpdb;
3689 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
3690 - $existing_data = $wpdb->get_row($wpdb->prepare(
3691 - "SELECT user_email, user_name FROM $table_name WHERE session_id = %s AND (user_email IS NOT NULL OR user_name IS NOT NULL) LIMIT 1",
3692 - $session_id
3693 - ));
3694 -
3695 - if ($existing_data) {
3696 - if (empty($email) && !empty($existing_data->user_email)) {
3697 - $email = $existing_data->user_email;
3698 - //error_log("[DEBUG] Using email from chat transcript for channel: {$email}");
3699 - }
3700 - if (empty($name) && !empty($existing_data->user_name)) {
3701 - $name = $existing_data->user_name;
3702 - //error_log("[DEBUG] Using name from chat transcript for channel: {$name}");
3703 - }
3704 - }
3705 - }
3706 -
3707 - // 4. Generate channel name based on priority: Name > Email > Session ID
3708 - $channel_name = '';
3709 -
3710 - if (!empty($name)) {
3711 - // Convert name to valid Slack channel name
3712 - $base_name = strtolower(trim($name));
3713 - // Replace spaces and invalid characters
3714 - $base_name = preg_replace('/[^a-z0-9\s]/', '', $base_name);
3715 - $base_name = preg_replace('/\s+/', '-', $base_name);
3716 - $base_name = trim($base_name, '-');
3717 -
3718 - // Get last 4 characters of session ID for uniqueness
3719 - $session_suffix = substr($session_id, -4);
3720 - $channel_name = 'chat-' . $base_name . '-' . strtolower($session_suffix);
3721 -
3722 - // Slack channel names have a 21 character limit
3723 - if (strlen($channel_name) > 21) {
3724 - // Calculate available space for name (21 - 'chat-' - '-' - session_suffix)
3725 - $available_space = 21 - 5 - 1 - strlen($session_suffix); // 'chat-' = 5, '-' = 1
3726 - $truncated_name = substr($base_name, 0, $available_space);
3727 - $truncated_name = rtrim($truncated_name, '-'); // Remove trailing hyphen
3728 - $channel_name = 'chat-' . $truncated_name . '-' . strtolower($session_suffix);
3729 - }
3730 -
3731 - //error_log("[DEBUG] Using name for channel: {$channel_name} (from name: {$name})");
3732 -
3733 - } elseif (!empty($email)) {
3734 - // Convert email to valid Slack channel name (your existing logic)
3735 - $channel_name = 'chat-' . strtolower(str_replace(['@', '.', '+', '_'], ['-at-', '-', '-plus-', '-'], $email));
3736 - // Remove any remaining invalid characters
3737 - $channel_name = preg_replace('/[^a-z0-9\-]/', '', $channel_name);
3738 - // Ensure it doesn't end with a hyphen
3739 - $channel_name = rtrim($channel_name, '-');
3740 - // Slack channel names have a 21 character limit, so truncate if needed
3741 - if (strlen($channel_name) > 21) {
3742 - $channel_name = substr($channel_name, 0, 21);
3743 - $channel_name = rtrim($channel_name, '-'); // Remove trailing hyphen if truncation created one
3744 - }
3745 -
3746 - //error_log("[DEBUG] Using email for channel: {$channel_name} (from email: {$email})");
3747 -
3748 - } else {
3749 - // Fallback to session ID if no name or email found
3750 - $channel_name = 'chat-' . strtolower(preg_replace('/[^a-zA-Z0-9]/', '', $session_id));
3751 - //error_log("[DEBUG] No name or email found, using session ID for channel: {$channel_name}");
3752 - }
3753 -
3754 - // Final validation - ensure channel name meets Slack requirements
3755 - if (strlen($channel_name) > 21) {
3756 - $channel_name = substr($channel_name, 0, 21);
3757 - $channel_name = rtrim($channel_name, '-');
3758 - }
3759 -
3760 - //error_log("[DEBUG] Generated channel name: {$channel_name}");
3761 - return $channel_name;
3762 -}
3763 -
3764 -/**
3765 - * Telegram Live Agent Handover
3766 - * Creates a forum topic in the Telegram group and notifies agents
3767 - */
3768 -public function mxchat_telegram_live_agent_handover($message, $user_id, $session_id) {
3769 - // Check if Telegram agents are available
3770 - $telegram_available = $this->options['telegram_status'] ?? 'off';
3771 - if ($telegram_available !== 'on') {
3772 - $away_message = $this->options['telegram_away_message'] ?? 'Sorry, live agents are currently unavailable. I can continue helping you as an AI assistant.';
3773 - $this->fallbackResponse = [
3774 - 'text' => $away_message,
3775 - 'html' => '',
3776 - 'images' => [],
3777 - 'chat_mode' => 'ai'
3778 - ];
3779 - wp_send_json([
3780 - 'text' => $away_message,
3781 - 'html' => '',
3782 - 'chat_mode' => 'ai',
3783 - 'session_id' => $session_id
3784 - ]);
3785 - wp_die();
3786 - }
3787 -
3788 - $telegram_bot_token = $this->options['telegram_bot_token'] ?? '';
3789 - $telegram_group_id = $this->options['telegram_group_id'] ?? '';
3790 -
3791 - if (empty($telegram_bot_token) || empty($telegram_group_id)) {
2184 + if (is_wp_error($response)) {
3792 2185 return false;
3793 2186 }
3794 2187
3795 - // Check if topic already exists for this session
3796 - $topic_id = get_option("mxchat_telegram_topic_{$session_id}", '');
3797 -
3798 - if (empty($topic_id)) {
3799 - // Generate topic name
3800 - $topic_name = $this->generate_telegram_topic_name($session_id);
3801 -
3802 - // Random icon color (Telegram forum topic colors)
3803 - $icon_colors = [0x6FB9F0, 0xFFD67E, 0xCB86DB, 0x8EEE98, 0xFF93B2, 0xFB6F5F];
3804 - $icon_color = $icon_colors[array_rand($icon_colors)];
3805 -
3806 - // Create forum topic
3807 - $response = wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/createForumTopic", [
3808 - 'headers' => ['Content-Type' => 'application/json'],
3809 - 'body' => json_encode([
3810 - 'chat_id' => $telegram_group_id,
3811 - 'name' => $topic_name,
3812 - 'icon_color' => $icon_color
3813 - ])
3814 - ]);
3815 -
3816 - if (!is_wp_error($response)) {
3817 - $response_body = wp_remote_retrieve_body($response);
3818 - $response_data = json_decode($response_body, true);
3819 -
3820 - if (isset($response_data['ok']) && $response_data['ok']) {
3821 - $topic_id = $response_data['result']['message_thread_id'];
3822 - update_option("mxchat_telegram_topic_{$session_id}", $topic_id);
3823 - update_option("mxchat_telegram_group_{$session_id}", $telegram_group_id);
3824 - }
3825 - }
3826 -
3827 - if (empty($topic_id)) {
3828 - return false; // Failed to create topic
3829 - }
3830 - }
3831 -
3832 - // Get recent chat history
3833 - $history = get_option("mxchat_history_{$session_id}", []);
3834 - $recent_history = array_slice($history, -5);
3835 -
3836 - // Format conversation context for Telegram (HTML format)
3837 - $conversation_context = "";
3838 - if (!empty($recent_history)) {
3839 - $conversation_context = "<b>Recent Conversation:</b>\n";
3840 - foreach ($recent_history as $hist_message) {
3841 - $role_display = $hist_message['role'] === 'user' ? '👤 User' : '🤖 AI';
3842 - $escaped_content = htmlspecialchars($hist_message['content'], ENT_QUOTES, 'UTF-8');
3843 - $conversation_context .= "{$role_display}: {$escaped_content}\n";
3844 - }
3845 - $conversation_context .= "\n";
3846 - }
3847 -
3848 - // Get user info
3849 - $user_email = get_option("mxchat_email_{$session_id}", 'Not provided');
3850 - $user_name = get_option("mxchat_name_{$session_id}", 'Anonymous');
3851 -
3852 - // Update session mode
3853 - update_option("mxchat_mode_{$session_id}", 'agent');
3854 -
3855 - // Send initial message to topic
3856 - $escaped_message = htmlspecialchars($message, ENT_QUOTES, 'UTF-8');
3857 - $topic_message = "🔔 <b>New Live Agent Request</b>\n\n";
3858 - $topic_message .= "<b>Session ID:</b> <code>{$session_id}</code>\n";
3859 - $topic_message .= "<b>User:</b> {$user_name}\n";
3860 - $topic_message .= "<b>Email:</b> {$user_email}\n\n";
3861 -
3862 - if (!empty($conversation_context)) {
3863 - $topic_message .= $conversation_context;
3864 - }
3865 -
3866 - $topic_message .= "<b>Current Message:</b>\n{$escaped_message}\n\n";
3867 - $topic_message .= "<i>Reply in this topic - messages will be sent to the user</i>\n";
3868 - $topic_message .= "<i>Type #close, #end, #disconnect, or #done to end the session</i>";
3869 -
3870 - wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/sendMessage", [
3871 - 'headers' => ['Content-Type' => 'application/json'],
3872 - 'body' => json_encode([
3873 - 'chat_id' => $telegram_group_id,
3874 - 'message_thread_id' => $topic_id,
3875 - 'text' => $topic_message,
3876 - 'parse_mode' => 'HTML'
3877 - ])
3878 - ]);
3879 -
3880 - $success_message = $this->options['telegram_notification_message'] ?? "I've notified a support agent. Please allow a moment for them to respond.";
2188 + $success_message = $this->options['live_agent_notification_message'] ?? 'Live agent has been notified.';
3881 2189 $this->mxchat_save_chat_message($session_id, 'bot', $success_message);
3882 2190
3883 2191 $this->fallbackResponse = [
3884 2192 'text' => $success_message,
@@ -3896,278 +2204,79 @@
3896 2204 'fallbackResponse' => $this->fallbackResponse
3897 2205 ]);
3898 2206 wp_die();
3899 2207 }
3900 -
3901 -/**
3902 - * Generate topic name for Telegram forum
3903 - */
3904 -private function generate_telegram_topic_name($session_id) {
3905 - $name = null;
3906 - $email = null;
3907 -
3908 - // Check logged in user
3909 - if (is_user_logged_in()) {
3910 - $current_user = wp_get_current_user();
3911 - if (!empty($current_user->display_name)) {
3912 - $name = $current_user->display_name;
3913 - }
3914 - if (!empty($current_user->user_email)) {
3915 - $email = $current_user->user_email;
3916 - }
3917 - }
3918 -
3919 - // Check session data
3920 - if (empty($name)) {
3921 - $name = get_option("mxchat_name_{$session_id}");
3922 - }
3923 - if (empty($email)) {
3924 - $email = get_option("mxchat_email_{$session_id}");
3925 - }
3926 -
3927 - // Generate topic name
3928 - $session_suffix = substr($session_id, -6);
3929 -
3930 - if (!empty($name)) {
3931 - // Clean name for topic (max 128 chars in Telegram)
3932 - $clean_name = preg_replace('/[^\p{L}\p{N}\s\-]/u', '', $name);
3933 - $clean_name = trim($clean_name);
3934 - if (strlen($clean_name) > 50) {
3935 - $clean_name = substr($clean_name, 0, 50);
3936 - }
3937 - return "Chat - {$clean_name} ({$session_suffix})";
3938 - } elseif (!empty($email)) {
3939 - // Use email prefix
3940 - $email_prefix = explode('@', $email)[0];
3941 - if (strlen($email_prefix) > 30) {
3942 - $email_prefix = substr($email_prefix, 0, 30);
3943 - }
3944 - return "Chat - {$email_prefix} ({$session_suffix})";
3945 - }
3946 -
3947 - return "Chat - {$session_suffix}";
3948 -}
3949 -
3950 -/**
3951 - * Send user message to Telegram agent
3952 - */
3953 -public function mxchat_send_user_message_to_telegram_agent($message, $user_id, $session_id) {
3954 - $telegram_bot_token = $this->options['telegram_bot_token'] ?? '';
3955 - $topic_id = get_option("mxchat_telegram_topic_{$session_id}", '');
3956 - $group_id = get_option("mxchat_telegram_group_{$session_id}", '');
3957 -
3958 - if (empty($telegram_bot_token) || empty($topic_id) || empty($group_id)) {
3959 - return false;
3960 - }
3961 -
3962 - $escaped_message = htmlspecialchars($message, ENT_QUOTES, 'UTF-8');
3963 - $user_message = "👤 <b>User:</b> {$escaped_message}";
3964 -
3965 - $response = wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/sendMessage", [
3966 - 'headers' => ['Content-Type' => 'application/json'],
3967 - 'body' => json_encode([
3968 - 'chat_id' => $group_id,
3969 - 'message_thread_id' => $topic_id,
3970 - 'text' => $user_message,
3971 - 'parse_mode' => 'HTML'
3972 - ])
3973 - ]);
3974 -
3975 - return !is_wp_error($response);
3976 -}
3977 -
3978 -/**
3979 - * Handle incoming Telegram webhook
3980 - */
3981 -public function handle_telegram_webhook(WP_REST_Request $request) {
3982 - $body = $request->get_body();
3983 - $data = json_decode($body, true);
3984 -
3985 - //error_log('[MxChat Telegram DEBUG] Webhook received: ' . $body);
3986 -
3987 - // Handle message events from forum topics
3988 - if (isset($data['message'])) {
3989 - $message_data = $data['message'];
3990 -
3991 - // Skip if not from a forum topic
3992 - if (!isset($message_data['message_thread_id'])) {
3993 - //error_log('[MxChat Telegram DEBUG] Skipped: No message_thread_id (not a forum topic message)');
3994 - return new WP_REST_Response(['ok' => true]);
3995 - }
3996 -
3997 - // Skip bot messages
3998 - if (isset($message_data['from']['is_bot']) && $message_data['from']['is_bot']) {
3999 - //error_log('[MxChat Telegram DEBUG] Skipped: Message from bot');
4000 - return new WP_REST_Response(['ok' => true]);
4001 - }
4002 -
4003 - $chat_id = $message_data['chat']['id'] ?? '';
4004 - $topic_id = $message_data['message_thread_id'];
4005 - $message_text = $message_data['text'] ?? '';
4006 - $message_id = $message_data['message_id'] ?? '';
4007 - $from = $message_data['from'] ?? [];
4008 - $agent_name = trim(($from['first_name'] ?? '') . ' ' . ($from['last_name'] ?? ''));
4009 - if (empty($agent_name)) {
4010 - $agent_name = $from['username'] ?? 'Agent';
4011 - }
4012 -
4013 - //error_log("[MxChat Telegram DEBUG] Parsed: chat_id={$chat_id}, topic_id={$topic_id}, agent={$agent_name}, text={$message_text}");
4014 -
4015 - // Skip empty messages
4016 - if (empty($message_text)) {
4017 - //error_log('[MxChat Telegram DEBUG] Skipped: Empty message text');
4018 - return new WP_REST_Response(['ok' => true]);
4019 - }
4020 -
4021 - // Find session ID by topic ID - cast to string for comparison
4022 - global $wpdb;
4023 - $topic_id_str = strval($topic_id);
4024 - $session_option = $wpdb->get_var(
4025 - $wpdb->prepare(
4026 - "SELECT option_name FROM {$wpdb->options}
4027 - WHERE option_name LIKE %s
4028 - AND option_value = %s",
4029 - 'mxchat_telegram_topic_%',
4030 - $topic_id_str
4031 - )
4032 - );
4033 -
4034 - //error_log("[MxChat Telegram DEBUG] Looking for topic_id={$topic_id_str} in options, found: " . ($session_option ?: 'NULL'));
4035 -
4036 - if ($session_option) {
4037 - $session_id = str_replace('mxchat_telegram_topic_', '', $session_option);
4038 - //error_log("[MxChat Telegram DEBUG] Session ID: {$session_id}");
4039 -
4040 - // Verify the group ID matches
4041 - $stored_group_id = get_option("mxchat_telegram_group_{$session_id}", '');
4042 - //error_log("[MxChat Telegram DEBUG] Stored group_id={$stored_group_id}, received chat_id={$chat_id}");
4043 -
4044 - if (strval($stored_group_id) != strval($chat_id)) {
4045 - //error_log('[MxChat Telegram DEBUG] Skipped: Group ID mismatch');
4046 - return new WP_REST_Response(['ok' => true]);
4047 - }
4048 -
4049 - // Check for closure commands
4050 - $lower_text = strtolower(trim($message_text));
4051 - if (in_array($lower_text, ['#close', '#end', '#disconnect', '#done'])) {
4052 - //error_log("[MxChat Telegram DEBUG] Closure command received: {$lower_text}");
4053 - // End the live agent session
4054 - update_option("mxchat_mode_{$session_id}", 'ai');
4055 -
4056 - // Save disconnect message
4057 - $disconnect_message = "Live agent session ended. You're now chatting with the AI assistant.";
4058 - $this->mxchat_save_chat_message($session_id, 'bot', $disconnect_message);
4059 -
4060 - // Notify in Telegram
4061 - $telegram_bot_token = $this->options['telegram_bot_token'] ?? '';
4062 - if (!empty($telegram_bot_token)) {
4063 - wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/sendMessage", [
4064 - 'headers' => ['Content-Type' => 'application/json'],
4065 - 'body' => json_encode([
4066 - 'chat_id' => $chat_id,
4067 - 'message_thread_id' => $topic_id,
4068 - 'text' => "✅ Session closed. User returned to AI chatbot.",
4069 - 'parse_mode' => 'HTML'
4070 - ])
4071 - ]);
4072 -
4073 - // Optionally close the topic
4074 - wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/closeForumTopic", [
4075 - 'headers' => ['Content-Type' => 'application/json'],
4076 - 'body' => json_encode([
4077 - 'chat_id' => $chat_id,
4078 - 'message_thread_id' => $topic_id
4079 - ])
4080 - ]);
4081 - }
4082 -
4083 - return new WP_REST_Response(['ok' => true]);
4084 - }
4085 -
4086 - // Deduplicate messages
4087 - $message_key = md5($session_id . $message_id . $message_text);
4088 - $processed_messages = get_transient('mxchat_telegram_messages_' . $session_id) ?: [];
4089 -
4090 - if (in_array($message_key, $processed_messages)) {
4091 - //error_log('[MxChat Telegram DEBUG] Skipped: Duplicate message');
4092 - return new WP_REST_Response(['ok' => true]);
4093 - }
4094 -
4095 - $processed_messages[] = $message_key;
4096 - if (count($processed_messages) > 50) {
4097 - $processed_messages = array_slice($processed_messages, -50);
4098 - }
4099 - set_transient('mxchat_telegram_messages_' . $session_id, $processed_messages, HOUR_IN_SECONDS);
4100 -
4101 - // Save the agent message - format with agent name prefix for proper parsing
4102 - $formatted_message = "Agent: {$agent_name} - {$message_text}";
4103 - //error_log("[MxChat Telegram DEBUG] Saving agent message: {$formatted_message}");
4104 -
4105 - $this->mxchat_save_chat_message($session_id, 'agent', $formatted_message);
4106 -
4107 - // Verify the message was saved to history
4108 - $history = get_option("mxchat_history_{$session_id}", []);
4109 - $last_message = end($history);
4110 - //error_log("[MxChat Telegram DEBUG] History after save - count: " . count($history) . ", last message role: " . ($last_message['role'] ?? 'none'));
4111 -
4112 - // Send confirmation back to Telegram
4113 - $telegram_bot_token = $this->options['telegram_bot_token'] ?? '';
4114 - if (!empty($telegram_bot_token)) {
4115 - $confirm_key = 'mxchat_telegram_confirm_' . $message_key;
4116 - if (!get_transient($confirm_key)) {
4117 - wp_remote_post("https://api.telegram.org/bot{$telegram_bot_token}/sendMessage", [
4118 - 'headers' => ['Content-Type' => 'application/json'],
4119 - 'body' => json_encode([
4120 - 'chat_id' => $chat_id,
4121 - 'message_thread_id' => $topic_id,
4122 - 'text' => "✅ <i>Message sent to user</i>",
4123 - 'parse_mode' => 'HTML',
4124 - 'reply_to_message_id' => $message_id
4125 - ])
4126 - ]);
4127 - set_transient($confirm_key, true, 300);
4128 - }
4129 - }
4130 - } else {
4131 - //error_log("[MxChat Telegram DEBUG] No session found for topic_id={$topic_id}");
4132 - }
4133 - } else {
4134 - //error_log('[MxChat Telegram DEBUG] No message in webhook data');
4135 - }
4136 -
4137 - return new WP_REST_Response(['ok' => true]);
4138 -}
4139 -
4140 2208 public function mxchat_send_user_message_to_agent($message, $user_id, $session_id) {
4141 - // Check if this is a Telegram agent session
4142 - $telegram_topic_id = get_option("mxchat_telegram_topic_{$session_id}", '');
4143 - if (!empty($telegram_topic_id)) {
4144 - return $this->mxchat_send_user_message_to_telegram_agent($message, $user_id, $session_id);
4145 - }
2209 + $slack_webhook_url = $this->options['live_agent_webhook_url'] ?? '';
4146 2210
4147 - // Otherwise, try Slack
4148 - $slack_bot_token = $this->options['live_agent_bot_token'] ?? '';
4149 - $channel_id = get_option("mxchat_channel_{$session_id}", '');
4150 -
4151 - if (empty($slack_bot_token) || empty($channel_id)) {
2211 + if (empty($slack_webhook_url)) {
2212 + //error_log(esc_html__('Slack Webhook URL is not configured.', 'mxchat'));
4152 2213 return false;
4153 2214 }
4154 2215
4155 - $user_message = "💬 *User:* {$message}";
2216 + $webhook_data = [
2217 + 'blocks' => [
2218 + [
2219 + 'type' => 'header',
2220 + 'text' => [
2221 + 'type' => 'plain_text',
2222 + 'text' => esc_html__('📩 New Chat Message', 'mxchat'),
2223 + 'emoji' => true
2224 + ]
2225 + ],
2226 + [
2227 + 'type' => 'section',
2228 + 'fields' => [
2229 + [
2230 + 'type' => 'mrkdwn',
2231 + 'text' => sprintf(esc_html__('*User ID:*\n`%s`', 'mxchat'), $user_id)
2232 + ],
2233 + [
2234 + 'type' => 'mrkdwn',
2235 + 'text' => sprintf(esc_html__('*Session ID:*\n`%s`', 'mxchat'), $session_id)
2236 + ]
2237 + ]
2238 + ],
2239 + [
2240 + 'type' => 'section',
2241 + 'text' => [
2242 + 'type' => 'mrkdwn',
2243 + 'text' => sprintf(esc_html__('*Message:*\n%s', 'mxchat'), $message)
2244 + ]
2245 + ],
2246 + [
2247 + 'type' => 'actions',
2248 + 'elements' => [
2249 + [
2250 + 'type' => 'button',
2251 + 'text' => [
2252 + 'type' => 'plain_text',
2253 + 'text' => esc_html__('✍️ Reply', 'mxchat'),
2254 + 'emoji' => true
2255 + ],
2256 + 'value' => $session_id,
2257 + 'action_id' => 'reply_to_user',
2258 + 'style' => 'primary'
2259 + ]
2260 + ]
2261 + ]
2262 + ]
2263 + ];
4156 2264
4157 - $response = wp_remote_post('https://slack.com/api/chat.postMessage', [
2265 + $response = wp_remote_post($slack_webhook_url, [
2266 + 'body' => json_encode($webhook_data),
4158 2267 'headers' => [
4159 2268 'Content-Type' => 'application/json',
4160 - 'Authorization' => 'Bearer ' . $slack_bot_token
4161 2269 ],
4162 - 'body' => json_encode([
4163 - 'channel' => $channel_id,
4164 - 'text' => $user_message,
4165 - 'mrkdwn' => true
4166 - ])
4167 2270 ]);
4168 2271
4169 - return !is_wp_error($response);
2272 + if (is_wp_error($response)) {
2273 + //error_log(esc_html__('Error sending message to Slack: ', 'mxchat') . $response->get_error_message());
2274 + return false;
2275 + }
2276 +
2277 + //error_log(esc_html__('Message sent to Slack successfully.', 'mxchat'));
2278 + return true;
4170 2279 }
4171 2280 public function handle_slack_interaction(WP_REST_Request $request) {
4172 2281 //error_log('Received Slack interaction');
4173 2282
@@ -4255,16 +2364,17 @@
4255 2364
4256 2365 // Default acknowledgment
4257 2366 return new WP_REST_Response(['ok' => true]);
4258 2367 }
2368 +
4259 2369 public function mxchat_handle_agent_response(WP_REST_Request $request) {
4260 2370 //error_log('Received agent response request');
4261 2371 //error_log('Request data: ' . print_r($request->get_params(), true));
4262 - // //error_log('Raw body: ' . file_get_contents('php://input'));
2372 + // error_log('Raw body: ' . file_get_contents('php://input'));
4263 2373
4264 2374 // Get the data from Slack's slash command format
4265 2375 $command_text = $request->get_param('text');
4266 - // //error_log('Command text: ' . $command_text);
2376 + // error_log('Command text: ' . $command_text);
4267 2377
4268 2378 if (empty($command_text)) {
4269 2379 //error_log(esc_html__('Agent response error: No command text received', 'mxchat'));
4270 2380 return new WP_REST_Response([
@@ -4289,9 +2399,9 @@
4289 2399 // Save the message
4290 2400 $message_id = $this->mxchat_save_chat_message($session_id, 'agent', $message);
4291 2401
4292 2402 if (!$message_id) {
4293 - // //error_log('Failed to save agent message');
2403 + // error_log('Failed to save agent message');
4294 2404 return new WP_REST_Response([
4295 2405 'error' => esc_html__('Failed to save message', 'mxchat')
4296 2406 ], 500);
4297 2407 }
@@ -4301,173 +2411,29 @@
4301 2411 'response_type' => 'in_channel',
4302 2412 'text' => esc_html__("Message sent successfully to session $session_id", 'mxchat')
4303 2413 ], 200);
4304 2414 }
4305 -public function mxchat_handle_switch_to_chatbot_intent($message, $user_id, $session_id) {
4306 - // Update mode to AI
4307 - update_option("mxchat_mode_{$session_id}", 'ai');
4308 -
4309 - // Clear any existing PDF context to start fresh
4310 - $this->clear_pdf_transients($session_id);
4311 -
4312 - // Set the response with explicit chat_mode
4313 - $this->fallbackResponse = [
4314 - 'text' => esc_html__('You are now chatting with the AI chatbot.', 'mxchat'),
4315 - 'html' => '',
4316 - 'images' => [],
4317 - 'chat_mode' => 'ai' // Ensure this is set
4318 - ];
4319 -
4320 - // Return the complete response array instead of just true
4321 - return $this->fallbackResponse;
4322 -}
4323 2415
4324 -public function handle_slack_messages(WP_REST_Request $request) {
4325 - // Log the incoming request for debugging
4326 - //error_log('Slack events request received: ' . $request->get_body());
4327 -
4328 - $body = $request->get_body();
4329 - $data = json_decode($body, true);
4330 -
4331 - // Handle Slack URL verification
4332 - if (isset($data['type']) && $data['type'] === 'url_verification') {
4333 - //error_log('Slack URL verification challenge: ' . $data['challenge']);
4334 - return new WP_REST_Response($data['challenge'], 200, ['Content-Type' => 'text/plain']);
4335 - }
4336 -
4337 - // IMPORTANT: Handle Slack's event deduplication
4338 - if (isset($data['event_id'])) {
4339 - $event_id = $data['event_id'];
4340 - $processed_events = get_transient('mxchat_slack_events') ?: [];
4341 -
4342 - // Check if we've already processed this event
4343 - if (in_array($event_id, $processed_events)) {
4344 - //error_log("Duplicate event detected: $event_id");
4345 - return new WP_REST_Response(['ok' => true]);
4346 - }
4347 -
4348 - // Add this event to processed list
4349 - $processed_events[] = $event_id;
4350 - // Keep only last 100 events to prevent memory issues
4351 - if (count($processed_events) > 100) {
4352 - $processed_events = array_slice($processed_events, -100);
4353 - }
4354 - // Store for 1 hour
4355 - set_transient('mxchat_slack_events', $processed_events, HOUR_IN_SECONDS);
4356 - }
4357 -
4358 - // Handle message events
4359 - if (isset($data['event']) && $data['event']['type'] === 'message') {
4360 - $event = $data['event'];
4361 -
4362 - // Skip bot messages and messages with subtypes (like bot_message)
4363 - if (isset($event['bot_id']) || isset($event['subtype'])) {
4364 - return new WP_REST_Response(['ok' => true]);
4365 - }
4366 -
4367 - // Additional check: Skip if this is a threaded reply to our confirmation
4368 - if (isset($event['thread_ts']) && $event['thread_ts'] !== $event['ts']) {
4369 - return new WP_REST_Response(['ok' => true]);
4370 - }
4371 -
4372 - $channel_id = $event['channel'];
4373 - $message_text = $event['text'] ?? '';
4374 - $message_ts = $event['ts'] ?? '';
4375 2416
4376 - // Find session ID by looking for matching channel
4377 - global $wpdb;
4378 - $session_option = $wpdb->get_var(
4379 - $wpdb->prepare(
4380 - "SELECT option_name FROM {$wpdb->options}
4381 - WHERE option_name LIKE 'mxchat_channel_%'
4382 - AND option_value = %s",
4383 - $channel_id
4384 - )
4385 - );
2417 +public function mxchat_handle_switch_to_chatbot_intent($message, $user_id, $session_id) {
2418 + //error_log(esc_html__("Switching back to chatbot mode via intent.", 'mxchat'));
4386 2419
4387 - if ($session_option) {
4388 - $session_id = str_replace('mxchat_channel_', '', $session_option);
2420 + // Just update mode to AI
2421 + update_option("mxchat_mode_{$session_id}", 'ai');
4389 2422
4390 - // Create a unique key for this specific message
4391 - $message_key = md5($session_id . $message_ts . $message_text);
4392 - $processed_messages = get_transient('mxchat_processed_messages_' . $session_id) ?: [];
2423 + // Initialize states
2424 + $this->fallbackResponse = ['text' => '', 'html' => '', 'images' => []];
2425 + $this->productCardHtml = '';
4393 2426
4394 - // Check if we've already processed this exact message
4395 - if (in_array($message_key, $processed_messages)) {
4396 - //error_log("Duplicate message detected for session $session_id");
4397 - return new WP_REST_Response(['ok' => true]);
4398 - }
2427 + // Set the response message
2428 + $this->fallbackResponse['text'] = esc_html__('You are now chatting with the AI chatbot.', 'mxchat');
4399 2429
4400 - // Add to processed messages
4401 - $processed_messages[] = $message_key;
4402 - // Keep only last 50 messages per session
4403 - if (count($processed_messages) > 50) {
4404 - $processed_messages = array_slice($processed_messages, -50);
4405 - }
4406 - set_transient('mxchat_processed_messages_' . $session_id, $processed_messages, HOUR_IN_SECONDS);
2430 + return true; // Intent was handled
2431 +}
4407 2432
4408 - $slack_bot_token = $this->options['live_agent_bot_token'] ?? '';
4409 2433
4410 - // Handle agent ending the chat — transfer back to AI
4411 - // Format: "!endchat" or "!endchat <custom message to user>"
4412 - if (preg_match('/^!endchat\b/i', trim($message_text))) {
4413 - update_option("mxchat_mode_{$session_id}", 'ai');
4414 2434
4415 - // Extract custom message after !endchat, or use empty string
4416 - $custom_message = trim(preg_replace('/^!endchat\s*/i', '', trim($message_text)));
4417 2435
4418 - // Send the agent's custom farewell message if provided
4419 - if (!empty($custom_message)) {
4420 - $this->mxchat_save_chat_message($session_id, 'agent', $custom_message);
4421 - }
4422 -
4423 - // Confirm in Slack channel
4424 - if (!empty($slack_bot_token)) {
4425 - wp_remote_post('https://slack.com/api/chat.postMessage', [
4426 - 'headers' => [
4427 - 'Content-Type' => 'application/json',
4428 - 'Authorization' => 'Bearer ' . $slack_bot_token
4429 - ],
4430 - 'body' => json_encode([
4431 - 'channel' => $channel_id,
4432 - 'text' => "✅ *Chat ended.* User has been transferred back to AI mode.",
4433 - 'mrkdwn' => true
4434 - ])
4435 - ]);
4436 - }
4437 -
4438 - return new WP_REST_Response(['ok' => true]);
4439 - }
4440 -
4441 - // Save the agent message
4442 - $this->mxchat_save_chat_message($session_id, 'agent', $message_text);
4443 -
4444 - // Send confirmation back to Slack (only once)
4445 - if (!empty($slack_bot_token)) {
4446 - // Use a transient to prevent duplicate confirmations
4447 - $confirm_key = 'mxchat_confirm_' . $message_key;
4448 - if (!get_transient($confirm_key)) {
4449 - wp_remote_post('https://slack.com/api/chat.postMessage', [
4450 - 'headers' => [
4451 - 'Content-Type' => 'application/json',
4452 - 'Authorization' => 'Bearer ' . $slack_bot_token
4453 - ],
4454 - 'body' => json_encode([
4455 - 'channel' => $channel_id,
4456 - 'text' => "✅ _Message sent to user_",
4457 - 'thread_ts' => $event['ts'] // Reply in thread
4458 - ])
4459 - ]);
4460 - // Set transient to prevent duplicate confirmations
4461 - set_transient($confirm_key, true, 300); // 5 minutes
4462 - }
4463 - }
4464 - }
4465 - }
4466 -
4467 - return new WP_REST_Response(['ok' => true]);
4468 -}
4469 -
4470 2436 // For the word upload handler
4471 2437 public function mxchat_handle_word_upload() {
4472 2438 // Delegate to word handler
4473 2439 $this->word_handler->mxchat_handle_word_upload();
@@ -4490,801 +2456,257 @@
4490 2456 return MxChat_User::mxchat_get_user_identifier();
4491 2457 }
4492 2458
4493 2459 private function mxchat_generate_embedding($text, $api_key) {
4494 - try {
4495 - // Get options and selected model
4496 - $options = get_option('mxchat_options');
4497 - $selected_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
4498 -
4499 - // Determine endpoint and API key based on model
4500 - if (strpos($selected_model, 'voyage') === 0) {
4501 - $endpoint = 'https://api.voyageai.com/v1/embeddings';
4502 - $api_key = $options['voyage_api_key'] ?? '';
4503 -
4504 - // Check if Voyage API key is missing
4505 - if (empty($api_key)) {
4506 - //error_log('Voyage API key is missing');
4507 - return [
4508 - 'error' => esc_html__('Voyage AI API key is not configured', 'mxchat'),
4509 - 'error_code' => 'missing_voyage_api_key'
4510 - ];
4511 - }
4512 - } elseif (strpos($selected_model, 'gemini-embedding') === 0) {
4513 - $endpoint = 'https://generativelanguage.googleapis.com/v1beta/models/' . $selected_model . ':embedContent';
4514 - $api_key = $options['gemini_api_key'] ?? '';
4515 -
4516 - // Check if Gemini API key is missing
4517 - if (empty($api_key)) {
4518 - //error_log('Gemini API key is missing');
4519 - return [
4520 - 'error' => esc_html__('Google Gemini API key is not configured', 'mxchat'),
4521 - 'error_code' => 'missing_gemini_api_key'
4522 - ];
4523 - }
4524 - } else {
4525 - $endpoint = 'https://api.openai.com/v1/embeddings';
4526 - // Use the passed API key for OpenAI
4527 -
4528 - // Check if OpenAI API key is missing
4529 - if (empty($api_key)) {
4530 - //error_log('OpenAI API key is missing');
4531 - return [
4532 - 'error' => esc_html__('OpenAI API key is not configured', 'mxchat'),
4533 - 'error_code' => 'missing_openai_api_key'
4534 - ];
4535 - }
4536 - }
4537 -
4538 - // Check if text is empty
4539 - if (empty($text)) {
4540 - //error_log('Empty text provided for embedding generation');
4541 - return [
4542 - 'error' => esc_html__('No text provided for embedding generation', 'mxchat'),
4543 - 'error_code' => 'empty_embedding_text'
4544 - ];
4545 - }
4546 -
4547 - // Prepare request body based on provider
4548 - if (strpos($selected_model, 'gemini-embedding') === 0) {
4549 - // Gemini API format
4550 - $request_body = [
4551 - 'model' => 'models/' . $selected_model,
4552 - 'content' => [
4553 - 'parts' => [
4554 - ['text' => $text]
4555 - ]
4556 - ],
4557 - 'outputDimensionality' => 1536
4558 - ];
4559 -
4560 - // Prepare headers for Gemini (API key as query parameter)
4561 - $endpoint .= '?key=' . $api_key;
4562 - $headers = [
4563 - 'Content-Type' => 'application/json'
4564 - ];
4565 - } else {
4566 - // OpenAI/Voyage API format
4567 - $request_body = [
4568 - 'input' => $text,
4569 - 'model' => $selected_model
4570 - ];
4571 -
4572 - // Add output_dimension for voyage-3-large
4573 - if ($selected_model === 'voyage-3-large') {
4574 - $request_body['output_dimension'] = 2048;
4575 - }
4576 -
4577 - // Prepare headers for OpenAI/Voyage
4578 - $headers = [
4579 - 'Content-Type' => 'application/json',
4580 - 'Authorization' => 'Bearer ' . $api_key
4581 - ];
4582 - }
4583 -
4584 - // Prepare request arguments
4585 - $args = [
4586 - 'body' => wp_json_encode($request_body),
4587 - 'headers' => $headers,
4588 - 'timeout' => 60,
4589 - 'redirection' => 5,
4590 - 'blocking' => true,
4591 - 'httpversion' => '1.0',
4592 - 'sslverify' => true,
4593 - ];
4594 -
4595 - // Make the request
4596 - $response = wp_remote_post($endpoint, $args);
4597 -
4598 - // Handle WordPress errors
4599 - if (is_wp_error($response)) {
4600 - $error_message = $response->get_error_message();
4601 - //error_log('Embedding Generation Error: ' . $error_message);
4602 - return [
4603 - 'error' => esc_html__('Connection error when generating embeddings: ', 'mxchat') . esc_html($error_message),
4604 - 'error_code' => 'embedding_connection_error'
4605 - ];
4606 - }
4607 -
4608 - // Check HTTP status code
4609 - $status_code = wp_remote_retrieve_response_code($response);
4610 - if ($status_code !== 200) {
4611 - $response_body = json_decode(wp_remote_retrieve_body($response), true);
4612 -
4613 - $error_message = isset($response_body['error']['message'])
4614 - ? $response_body['error']['message']
4615 - : 'HTTP Error ' . $status_code;
4616 -
4617 - $error_type = isset($response_body['error']['type'])
4618 - ? $response_body['error']['type']
4619 - : 'unknown';
4620 -
4621 - //error_log('Embedding API HTTP Error: ' . $status_code . ' - ' . $error_message);
4622 -
4623 - // Handle specific error types
4624 - switch ($error_type) {
4625 - case 'invalid_request_error':
4626 - if (strpos($error_message, 'API key') !== false) {
4627 - return [
4628 - 'error' => esc_html__('Invalid API key for embedding generation. Please check your API key configuration.', 'mxchat'),
4629 - 'error_code' => 'embedding_invalid_api_key'
4630 - ];
4631 - }
4632 - break;
4633 -
4634 - case 'authentication_error':
4635 - return [
4636 - 'error' => esc_html__('Authentication failed for embedding generation. Please check your API key.', 'mxchat'),
4637 - 'error_code' => 'embedding_auth_error'
4638 - ];
4639 -
4640 - case 'rate_limit_exceeded':
4641 - return [
4642 - 'error' => esc_html__('Rate limit exceeded for embedding generation. Please try again later.', 'mxchat'),
4643 - 'error_code' => 'embedding_rate_limit'
4644 - ];
4645 -
4646 - case 'quota_exceeded':
4647 - return [
4648 - 'error' => esc_html__('API quota exceeded for embedding generation. Please check your billing details.', 'mxchat'),
4649 - 'error_code' => 'embedding_quota_exceeded'
4650 - ];
4651 - }
4652 -
4653 - // Generic error fallback
4654 - return [
4655 - 'error' => esc_html__('Embedding API error - check embedding API key.: ', 'mxchat') . esc_html($error_message),
4656 - 'error_code' => 'embedding_api_error',
4657 - 'status_code' => $status_code
4658 - ];
4659 - }
4660 -
4661 - $response_body = json_decode(wp_remote_retrieve_body($response), true);
4662 -
4663 - // Handle different response formats based on provider
4664 - if (strpos($selected_model, 'gemini-embedding') === 0) {
4665 - // Gemini API response format
4666 - if (isset($response_body['embedding']['values']) && is_array($response_body['embedding']['values'])) {
4667 - return $response_body['embedding']['values'];
4668 - } else {
4669 - //error_log('Invalid Gemini embedding response: ' . wp_json_encode($response_body));
4670 - return [
4671 - 'error' => esc_html__('Received invalid embedding data from the Gemini API.', 'mxchat'),
4672 - 'error_code' => 'invalid_gemini_embedding_response'
4673 - ];
4674 - }
4675 - } else {
4676 - // OpenAI/Voyage API response format
4677 - if (isset($response_body['data'][0]['embedding']) && is_array($response_body['data'][0]['embedding'])) {
4678 - return $response_body['data'][0]['embedding'];
4679 - } else {
4680 - //error_log('Invalid embedding response: ' . wp_json_encode($response_body));
4681 - return [
4682 - 'error' => esc_html__('Received invalid embedding data from the API.', 'mxchat'),
4683 - 'error_code' => 'invalid_embedding_response'
4684 - ];
4685 - }
4686 - }
4687 - } catch (Exception $e) {
4688 - //error_log('Embedding Exception: ' . $e->getMessage());
4689 - return [
4690 - 'error' => esc_html__('System error when generating embeddings: ', 'mxchat') . esc_html($e->getMessage()),
4691 - 'error_code' => 'embedding_exception'
4692 - ];
2460 + // Get options and selected model
2461 + $options = get_option('mxchat_options');
2462 + $selected_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
2463 +
2464 + // Determine endpoint and API key based on model
2465 + if (strpos($selected_model, 'voyage') === 0) {
2466 + $endpoint = 'https://api.voyageai.com/v1/embeddings';
2467 + $api_key = $options['voyage_api_key'] ?? '';
2468 + } else {
2469 + $endpoint = 'https://api.openai.com/v1/embeddings';
2470 + // Use the passed API key for OpenAI
4693 2471 }
2472 +
2473 + // Prepare request body with conditional output_dimension
2474 + $request_body = [
2475 + 'input' => $text,
2476 + 'model' => $selected_model
2477 + ];
2478 +
2479 + // Add output_dimension for voyage-3-large
2480 + if ($selected_model === 'voyage-3-large') {
2481 + $request_body['output_dimension'] = 2048;
2482 + }
2483 +
2484 + // Prepare request arguments
2485 + $args = [
2486 + 'body' => wp_json_encode($request_body),
2487 + 'headers' => [
2488 + 'Content-Type' => 'application/json',
2489 + 'Authorization' => 'Bearer ' . $api_key,
2490 + ],
2491 + 'timeout' => 60,
2492 + 'redirection' => 5,
2493 + 'blocking' => true,
2494 + 'httpversion' => '1.0',
2495 + 'sslverify' => true,
2496 + ];
2497 +
2498 + // Make the request
2499 + $response = wp_remote_post($endpoint, $args);
2500 +
2501 + // Rest of your existing code...
2502 + if (is_wp_error($response)) {
2503 + //error_log('Embedding Generation Error: ' . $response->get_error_message());
2504 + return null;
2505 + }
2506 +
2507 + $response_body = json_decode(wp_remote_retrieve_body($response), true);
2508 +
2509 + if (isset($response_body['data'][0]['embedding']) && is_array($response_body['data'][0]['embedding'])) {
2510 + return $response_body['data'][0]['embedding'];
2511 + } else {
2512 + //error_log('Invalid embedding response: ' . wp_json_encode($response_body));
2513 + return null;
2514 + }
4694 2515 }
4695 2516
4696 2517
4697 -private function mxchat_find_relevant_content($user_embedding, $bot_id = 'default', $user_query = '') {
4698 - //error_log("MXCHAT DEBUG: find_relevant_content called with bot_id: " . $bot_id);
2518 +private function mxchat_find_relevant_content($user_embedding) {
2519 + //error_log('MXChat Vector Search: Starting content search...');
4699 2520
4700 - // Check for OpenAI Vector Store first (takes priority when enabled)
4701 - $bot_vectorstore_config = $this->get_bot_vectorstore_config($bot_id);
2521 + // Retrieve the add-on settings from the database.
2522 + $addon_options = get_option('mxchat_pinecone_addon_options', array());
4702 2523
4703 - if ($bot_vectorstore_config['use_vectorstore']) {
4704 - // Get current model to verify it's an OpenAI model
4705 - $bot_options = $this->get_bot_options($bot_id);
4706 - $mxchat_options = get_option('mxchat_options', array());
4707 - $current_options = !empty($bot_options) ? $bot_options : $mxchat_options;
4708 - $selected_model = $current_options['model'] ?? 'gpt-5.1-chat-latest';
2524 + // Determine whether Pinecone is enabled.
2525 + // We expect the sanitized setting to be a string '1' if enabled, otherwise '0'.
2526 + $use_pinecone = (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1') ? 1 : 0;
4709 2527
4710 - if ($this->is_openai_chat_model($selected_model)) {
4711 - //error_log("MXCHAT DEBUG: Using OpenAI Vector Store for knowledge retrieval");
4712 - return $this->find_relevant_content_openai_vectorstore($user_query, $bot_id, $bot_vectorstore_config);
4713 - } else {
4714 - //error_log("MXCHAT DEBUG: Vector Store enabled but model is not OpenAI (" . $selected_model . "), skipping Vector Store");
4715 - }
4716 - }
2528 + //error_log('Pinecone enabled flag: ' . $use_pinecone);
4717 2529
4718 - // Get bot-specific Pinecone configuration
4719 - $bot_pinecone_config = $this->get_bot_pinecone_config($bot_id);
4720 -
4721 - // Debug: Log the Pinecone configuration
4722 - //error_log("MXCHAT DEBUG: Pinecone config for bot '$bot_id':");
4723 - //error_log(" - use_pinecone: " . ($bot_pinecone_config['use_pinecone'] ? 'true' : 'false'));
4724 - //error_log(" - api_key: " . (empty($bot_pinecone_config['api_key']) ? 'EMPTY' : 'SET (hidden)'));
4725 - //error_log(" - host: " . ($bot_pinecone_config['host'] ?? 'NOT SET'));
4726 - //error_log(" - namespace: " . ($bot_pinecone_config['namespace'] ?? 'NOT SET'));
4727 -
4728 - // Determine whether to use Pinecone based on bot configuration
4729 - $use_pinecone = isset($bot_pinecone_config['use_pinecone']) ? $bot_pinecone_config['use_pinecone'] : false;
4730 -
4731 - //error_log("MXCHAT DEBUG: Using " . ($use_pinecone ? "Pinecone" : "WordPress Database") . " for knowledge retrieval");
4732 -
4733 - if ($use_pinecone) {
4734 - return $this->find_relevant_content_pinecone($user_embedding, $bot_id, $bot_pinecone_config);
2530 + if ($use_pinecone === 1) {
2531 + //error_log('MXChat Vector Search: Using Pinecone database');
2532 + return $this->find_relevant_content_pinecone($user_embedding);
4735 2533 } else {
4736 - return $this->find_relevant_content_wordpress($user_embedding, $bot_id);
2534 + //error_log('MXChat Vector Search: Using WordPress database');
2535 + return $this->find_relevant_content_wordpress($user_embedding);
4737 2536 }
4738 2537 }
4739 2538
4740 -private function find_relevant_content_wordpress($user_embedding, $bot_id = 'default') {
2539 +
2540 +private function find_relevant_content_wordpress($user_embedding) {
4741 2541 global $wpdb;
4742 2542 $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
4743 - // Initialize similarity analysis storage
4744 - $this->last_similarity_analysis = [
4745 - 'knowledge_base_type' => 'WordPress Database',
4746 - 'bot_id' => $bot_id,
4747 - 'top_matches' => [],
4748 - 'threshold_used' => 0,
4749 - 'total_checked' => 0
4750 - ];
2543 + $cache_key = 'mxchat_system_prompt_embeddings';
2544 + $batch_size = 500;
4751 2545
4752 - // NEW: Initialize valid URLs array
4753 - $valid_urls = [];
2546 + // Log start of matching process
2547 + error_log('[MXCHAT] Starting similarity matching process');
4754 2548
4755 - // Get bot-specific options for similarity threshold
4756 - $bot_options = $this->get_bot_options($bot_id);
4757 - $current_options = !empty($bot_options) ? $bot_options : $this->options;
2549 + // Retrieve embeddings from cache or database
2550 + $embeddings = wp_cache_get($cache_key, 'mxchat_system_prompts');
2551 + if ($embeddings === false) {
2552 + error_log('[MXCHAT] Cache miss - loading embeddings from database');
2553 + $embeddings = [];
2554 + $offset = 0;
4758 2555
4759 - // Get knowledge manager instance for role checking
4760 - $knowledge_manager = MxChat_Knowledge_Manager::get_instance();
2556 + // Load in batches and build cache
2557 + do {
2558 + $query = $wpdb->prepare(
2559 + "SELECT id, embedding_vector
2560 + FROM {$system_prompt_table}
2561 + LIMIT %d OFFSET %d",
2562 + $batch_size,
2563 + $offset
2564 + );
4761 2565
4762 - // Get base similarity threshold from bot options or default options
4763 - $similarity_threshold = isset($current_options['similarity_threshold'])
4764 - ? ((int) $current_options['similarity_threshold']) / 100
4765 - : 0.35;
4766 - $this->last_similarity_analysis['threshold_used'] = $similarity_threshold;
4767 -
4768 - // Precompute bot_filter once, outside the streaming loop
4769 - $bot_filter = '';
4770 - if ($bot_id !== 'default') {
4771 - $column_exists = $wpdb->get_var("SHOW COLUMNS FROM {$system_prompt_table} LIKE 'bot_metadata'");
4772 - if ($column_exists) {
4773 - $bot_filter = $wpdb->prepare(" AND (bot_metadata = %s OR bot_metadata IS NULL OR bot_metadata = '')", $bot_id);
4774 - }
4775 - }
4776 -
4777 - // ===== STREAMING TOP-K PASS =====
4778 - // Stream rows in small batches, compute cosine similarity per row, and keep only:
4779 - // - top 10 by raw similarity (for the testing/debug display panel)
4780 - // - candidates above threshold with access (capped) for context assembly
4781 - // This bounds peak memory regardless of knowledge base size and avoids loading
4782 - // article_content for every row. article_content is fetched in Phase 2 for winners only.
4783 - $batch_size = 250;
4784 - $max_candidates = 200; // safety cap, well above rag_sources_limit * max_chunks_per_source
4785 - $top_display = [];
4786 - $candidates = [];
4787 - $total_checked = 0;
4788 - $offset = 0;
4789 -
4790 - do {
4791 - $batch = $wpdb->get_results($wpdb->prepare(
4792 - "SELECT id, embedding_vector, source_url, role_restriction
4793 - FROM {$system_prompt_table}
4794 - WHERE 1=1 {$bot_filter}
4795 - LIMIT %d OFFSET %d",
4796 - $batch_size,
4797 - $offset
4798 - ));
4799 -
4800 - if (empty($batch)) {
4801 - break;
4802 - }
4803 -
4804 - foreach ($batch as $row) {
4805 - $database_embedding = $row->embedding_vector
4806 - ? unserialize($row->embedding_vector, ['allowed_classes' => false])
4807 - : null;
4808 -
4809 - if (!is_array($database_embedding) || !is_array($user_embedding)) {
4810 - unset($database_embedding);
4811 - continue;
2566 + $batch = $wpdb->get_results($query);
2567 + if (empty($batch)) {
2568 + break;
4812 2569 }
4813 2570
4814 - $similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $database_embedding);
4815 - unset($database_embedding);
2571 + $embeddings = array_merge($embeddings, $batch);
2572 + $offset += $batch_size;
4816 2573
4817 - $role_restriction = $row->role_restriction ?? 'public';
4818 - $has_access = $knowledge_manager->mxchat_user_has_content_access($role_restriction);
4819 - $source_url = $row->source_url ?? '';
2574 + // Free memory
2575 + unset($batch);
4820 2576
4821 - // Maintain top 10 display buffer (insert-if-beats-worst)
4822 - if (count($top_display) < 10) {
4823 - $top_display[] = [
4824 - 'id' => $row->id,
4825 - 'similarity' => $similarity,
4826 - 'source_url' => $source_url,
4827 - 'role_restriction' => $role_restriction,
4828 - 'has_access' => $has_access,
4829 - ];
4830 - usort($top_display, function ($a, $b) {
4831 - return $b['similarity'] <=> $a['similarity'];
4832 - });
4833 - } elseif ($similarity > $top_display[9]['similarity']) {
4834 - $top_display[9] = [
4835 - 'id' => $row->id,
4836 - 'similarity' => $similarity,
4837 - 'source_url' => $source_url,
4838 - 'role_restriction' => $role_restriction,
4839 - 'has_access' => $has_access,
4840 - ];
4841 - usort($top_display, function ($a, $b) {
4842 - return $b['similarity'] <=> $a['similarity'];
4843 - });
4844 - }
2577 + } while (true);
4845 2578
4846 - // Track candidates for context assembly (above threshold + has access)
4847 - if ($similarity >= $similarity_threshold && $has_access) {
4848 - $candidates[] = [
4849 - 'id' => $row->id,
4850 - 'similarity' => $similarity,
4851 - 'source_url' => $source_url,
4852 - ];
4853 - }
4854 -
4855 - $total_checked++;
2579 + if (empty($embeddings)) {
2580 + error_log('[MXCHAT] No embeddings found in database');
2581 + return ''; // Return an empty string if no embeddings found
4856 2582 }
4857 -
4858 - unset($batch);
4859 -
4860 - // Trim candidates periodically to cap memory during long scans
4861 - if (count($candidates) > $max_candidates) {
4862 - usort($candidates, function ($a, $b) {
4863 - return $b['similarity'] <=> $a['similarity'];
4864 - });
4865 - $candidates = array_slice($candidates, 0, $max_candidates);
4866 - }
4867 -
4868 - $offset += $batch_size;
4869 - } while (true);
4870 -
4871 - if ($total_checked === 0) {
4872 - $this->current_valid_urls = [];
4873 - return '';
2583 + wp_cache_set($cache_key, $embeddings, 'mxchat_system_prompts', 3600);
2584 + error_log('[MXCHAT] Cached ' . count($embeddings) . ' embeddings');
2585 + } else {
2586 + error_log('[MXCHAT] Using ' . count($embeddings) . ' cached embeddings');
4874 2587 }
4875 2588
4876 - // Final candidates sort (best first)
4877 - if (count($candidates) > 1) {
4878 - usort($candidates, function ($a, $b) {
4879 - return $b['similarity'] <=> $a['similarity'];
4880 - });
4881 - }
4882 -
4883 - // ===== PHASE 2: FETCH ARTICLE CONTENT ONLY FOR WINNERS =====
4884 - // Gather unique IDs we actually need (top_display + candidates) and pull
4885 - // article_content in bounded IN() batches. This avoids loading content for
4886 - // every row during the similarity scan.
4887 - $needed_ids = [];
4888 - foreach ($top_display as $item) {
4889 - $needed_ids[$item['id']] = true;
4890 - }
4891 - foreach ($candidates as $item) {
4892 - $needed_ids[$item['id']] = true;
4893 - }
4894 - $needed_ids = array_keys($needed_ids);
4895 -
4896 - $content_map = [];
4897 - if (!empty($needed_ids)) {
4898 - foreach (array_chunk($needed_ids, 250) as $chunk_ids) {
4899 - $placeholders = implode(',', array_fill(0, count($chunk_ids), '%d'));
4900 - $rows = $wpdb->get_results($wpdb->prepare(
4901 - "SELECT id, article_content FROM {$system_prompt_table} WHERE id IN ($placeholders)",
4902 - ...$chunk_ids
4903 - ));
4904 - foreach ($rows as $r) {
4905 - $content_map[$r->id] = $r->article_content;
2589 + // Initialize array to store relevant results with similarity scores
2590 + $relevant_results = [];
2591 +
2592 + // Retrieve the similarity threshold
2593 + $similarity_threshold = ((int) get_option('mxchat_similarity_threshold', 80)) / 100;
2594 + error_log('[MXCHAT] Using similarity threshold: ' . ($similarity_threshold * 100) . '%');
2595 +
2596 + // Iterate through embeddings to calculate similarity
2597 + foreach ($embeddings as $embedding) {
2598 + $database_embedding = $embedding->embedding_vector
2599 + ? unserialize($embedding->embedding_vector, ['allowed_classes' => false])
2600 + : null;
2601 + if (is_array($database_embedding) && is_array($user_embedding)) {
2602 + $similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $database_embedding);
2603 +
2604 + // Log each similarity score over 0.5 to reduce log spam
2605 + if ($similarity > 0.1) {
2606 + error_log(sprintf('[MXCHAT] ID: %d | Similarity Score: %.4f', $embedding->id, $similarity));
4906 2607 }
4907 - unset($rows);
2608 +
2609 + $relevant_results[] = [
2610 + 'id' => $embedding->id,
2611 + 'similarity' => $similarity
2612 + ];
4908 2613 }
2614 + // Free memory
2615 + unset($database_embedding);
4909 2616 }
4910 2617
4911 - // Build the all_similarities display array from the top 10
4912 - $all_similarities = [];
4913 - foreach ($top_display as $item) {
4914 - $article_content_for_parse = $content_map[$item['id']] ?? '';
4915 - $parsed_for_display = MxChat_Chunker::parse_stored_chunk($article_content_for_parse);
4916 - $is_chunk = $parsed_for_display['is_chunked'];
4917 - $chunk_meta = $parsed_for_display['metadata'];
4918 -
4919 - if (!empty($item['source_url']) && $item['source_url'] !== '#') {
4920 - $source_display = $item['source_url'];
4921 - } else {
4922 - $content_preview = strip_tags($article_content_for_parse);
4923 - $content_preview = preg_replace('/\s+/', ' ', $content_preview);
4924 - $source_display = substr(trim($content_preview), 0, 50) . '...';
4925 - }
4926 -
4927 - $all_similarities[] = [
4928 - 'document_id' => $item['id'],
4929 - 'similarity' => $item['similarity'],
4930 - 'similarity_percentage' => round($item['similarity'] * 100, 2),
4931 - 'above_threshold' => $item['similarity'] >= $similarity_threshold,
4932 - 'source_display' => $source_display,
4933 - 'content_preview' => substr(strip_tags($parsed_for_display['text'] ?? ''), 0, 100) . '...',
4934 - 'used_for_context' => false,
4935 - 'role_restriction' => $item['role_restriction'],
4936 - 'has_access' => $item['has_access'],
4937 - 'filtered_out' => !$item['has_access'],
4938 - 'is_chunk' => $is_chunk,
4939 - 'chunk_index' => $is_chunk ? ($chunk_meta['chunk_index'] ?? 0) : null,
4940 - 'total_chunks' => $is_chunk ? ($chunk_meta['total_chunks'] ?? 1) : null
4941 - ];
4942 - }
4943 -
4944 - // Build url_groups from candidates for chunk reassembly
4945 - $url_groups = array();
4946 - foreach ($candidates as $cand) {
4947 - $article_content = $content_map[$cand['id']] ?? '';
4948 - $parsed = MxChat_Chunker::parse_stored_chunk($article_content);
4949 - $is_chunked = $parsed['is_chunked'];
4950 - $chunk_index = $parsed['metadata']['chunk_index'] ?? 0;
4951 - $text_content = $parsed['text'];
4952 -
4953 - $source_url = $cand['source_url'];
4954 - $group_key = !empty($source_url) ? $source_url : '_manual_' . $cand['id'];
4955 -
4956 - if (!isset($url_groups[$group_key])) {
4957 - $url_groups[$group_key] = array(
4958 - 'source_url' => $source_url,
4959 - 'best_score' => 0,
4960 - 'is_chunked' => $is_chunked,
4961 - 'chunks' => array(),
4962 - 'single_text' => '',
4963 - 'single_id' => null
4964 - );
4965 - }
4966 -
4967 - if ($cand['similarity'] > $url_groups[$group_key]['best_score']) {
4968 - $url_groups[$group_key]['best_score'] = $cand['similarity'];
4969 - }
4970 -
4971 - if ($is_chunked) {
4972 - $url_groups[$group_key]['is_chunked'] = true;
4973 - $url_groups[$group_key]['chunks'][] = array(
4974 - 'id' => $cand['id'],
4975 - 'score' => $cand['similarity'],
4976 - 'chunk_index' => $chunk_index,
4977 - 'text' => $text_content
4978 - );
4979 - } else {
4980 - $url_groups[$group_key]['single_text'] = $text_content;
4981 - $url_groups[$group_key]['single_id'] = $cand['id'];
4982 - }
4983 - }
4984 -
4985 - // Sort ALL similarities for testing display (highest first)
4986 - usort($all_similarities, function ($a, $b) {
2618 + // Filter and sort relevant results by similarity
2619 + $relevant_results = array_filter($relevant_results, function ($result) use ($similarity_threshold) {
2620 + return $result['similarity'] >= $similarity_threshold;
2621 + });
2622 + usort($relevant_results, function ($a, $b) {
4987 2623 return $b['similarity'] <=> $a['similarity'];
4988 2624 });
4989 2625
4990 - // Sort URL groups by best score (highest first)
4991 - uasort($url_groups, function($a, $b) {
4992 - return $b['best_score'] <=> $a['best_score'];
4993 - });
2626 + // Log number of results that met threshold
2627 + error_log('[MXCHAT] ' . count($relevant_results) . ' results met the similarity threshold');
4994 2628
4995 - // Get RAG sources limit from options (default 6, min 3, max 10)
4996 - $rag_sources_limit = isset($current_options['rag_sources_limit']) ? intval($current_options['rag_sources_limit']) : 3;
4997 - if ($rag_sources_limit < 3) $rag_sources_limit = 3;
4998 - if ($rag_sources_limit > 10) $rag_sources_limit = 10;
2629 + // Limit to the top 5 results
2630 + $top_results = array_slice($relevant_results, 0, 5);
4999 2631
5000 - // Take top N unique URLs based on user setting
5001 - $top_urls = array_slice($url_groups, 0, $rag_sources_limit, true);
5002 -
5003 - // Track which document IDs are used for context
5004 - $used_document_ids = [];
5005 - foreach ($top_urls as $group) {
5006 - if ($group['is_chunked']) {
5007 - foreach ($group['chunks'] as $chunk) {
5008 - $used_document_ids[] = $chunk['id'];
5009 - }
5010 - } elseif ($group['single_id']) {
5011 - $used_document_ids[] = $group['single_id'];
5012 - }
2632 + // Log the top matches
2633 + error_log('[MXCHAT] Top matching results:');
2634 + foreach ($top_results as $index => $result) {
2635 + error_log(sprintf('[MXCHAT] %d. ID: %d | Score: %.4f',
2636 + $index + 1,
2637 + $result['id'],
2638 + $result['similarity']
2639 + ));
5013 2640 }
5014 2641
5015 - // Update the all_similarities array to mark which were actually used
5016 - foreach ($all_similarities as &$similarity_item) {
5017 - $similarity_item['used_for_context'] = in_array($similarity_item['document_id'], $used_document_ids);
5018 - }
5019 -
5020 - // Store top 10 for testing panel
5021 - $this->last_similarity_analysis['top_matches'] = array_slice($all_similarities, 0, 10);
5022 - $this->last_similarity_analysis['total_checked'] = $total_checked;
5023 -
5024 - // Initialize final content
2642 + // Initialize the final content
5025 2643 $content = '';
5026 - $matches_used = 0;
5027 - $total_chunks_used = 0;
5028 - $max_total_chunks = isset($current_options['rag_chunks_limit']) ? intval($current_options['rag_chunks_limit']) : 15;
5029 - if ($max_total_chunks < 8) $max_total_chunks = 8;
5030 - if ($max_total_chunks > 20) $max_total_chunks = 20;
5031 - $max_chunks_per_source = 5; // Cap per individual source to limit token usage
5032 2644
5033 - // Check if citation links are enabled (default to 'on' for backwards compatibility)
5034 - // Use fresh options to ensure we get the latest setting value
5035 - $fresh_options = get_option('mxchat_options', []);
5036 - $citation_links_enabled = isset($fresh_options['citation_links_toggle']) ? ($fresh_options['citation_links_toggle'] === 'on') : true;
5037 -
5038 - // Build content from top sources
5039 - foreach ($top_urls as $group_key => $group) {
5040 - $source_url = $group['source_url']; // Use actual source_url, not the group key
5041 -
5042 - // Stop if we've hit the total chunk limit
5043 - if ($total_chunks_used >= $max_total_chunks) {
5044 - break;
5045 - }
5046 -
5047 - $full_text = '';
5048 - $chunks_in_this_source = 1; // Default for non-chunked content
5049 -
5050 - if ($group['is_chunked']) {
5051 - // Calculate how many chunks we can still use (respect both total and per-source caps)
5052 - $chunks_remaining = min($max_chunks_per_source, $max_total_chunks - $total_chunks_used);
5053 -
5054 - // Fetch chunks for this URL with limit
5055 - $full_text = $this->reassemble_chunks_from_wordpress($source_url, $chunks_remaining, $chunks_in_this_source);
5056 -
5057 - // If fetching all chunks fails, fall back to matched chunks
5058 - if (empty($full_text)) {
5059 - // Sort matched chunks by index and concatenate
5060 - usort($group['chunks'], function($a, $b) {
5061 - return $a['chunk_index'] <=> $b['chunk_index'];
5062 - });
5063 -
5064 - $chunk_texts = array();
5065 - $chunks_in_this_source = 0;
5066 - foreach ($group['chunks'] as $chunk) {
5067 - if ($total_chunks_used + $chunks_in_this_source >= $max_total_chunks) {
5068 - break;
5069 - }
5070 - $chunk_texts[] = $chunk['text'];
5071 - $chunks_in_this_source++;
5072 - }
5073 - $full_text = implode("\n\n", $chunk_texts);
2645 + // Fetch and combine content for the top results
2646 + foreach ($top_results as $result) {
2647 + $chunk_content = $this->fetch_content_with_product_links($result['id']);
2648 + // Check if the content is PDF-related and add surrounding pages
2649 + if (strpos($chunk_content, '{"document_type":"pdf"') !== false) {
2650 + error_log('[MXCHAT] ID ' . $result['id'] . ' is PDF content, adding surrounding pages');
2651 + $surrounding_content = $wpdb->get_results($wpdb->prepare(
2652 + "SELECT id, article_content FROM {$system_prompt_table}
2653 + WHERE id IN (
2654 + (SELECT id FROM {$system_prompt_table} WHERE id < %d ORDER BY id DESC LIMIT 1),
2655 + (SELECT id FROM {$system_prompt_table} WHERE id > %d ORDER BY id ASC LIMIT 1)
2656 + )",
2657 + $result['id'],
2658 + $result['id']
2659 + ));
2660 + // Add previous content if it exists
2661 + if (!empty($surrounding_content[0])) {
2662 + $content .= $surrounding_content[0]->article_content . "\n\n";
5074 2663 }
5075 - } else {
5076 - $full_text = $group['single_text'];
5077 - $chunks_in_this_source = 1;
5078 - }
5079 -
5080 - if (!empty($full_text)) {
5081 - // Strip URLs from content if citation links are disabled
5082 - if (!$citation_links_enabled) {
5083 - $full_text = preg_replace('#\bhttps?://[^\s<>"\']+#i', '', $full_text);
5084 - $full_text = preg_replace('/\s+/', ' ', trim($full_text)); // Clean up extra spaces
2664 + // Add the main chunk content
2665 + $content .= $chunk_content . "\n\n";
2666 + // Add next content if it exists
2667 + if (!empty($surrounding_content[1])) {
2668 + $content .= $surrounding_content[1]->article_content . "\n\n";
5085 2669 }
5086 -
5087 - // Use numbered reference for URL-based entries, plain info label for manual entries
5088 - // Manual entries are stored with an internal mxchat:// placeholder URL — never expose them as citations
5089 - if (!empty($source_url) && $source_url !== '#' && strpos($source_url, 'mxchat://') !== 0) {
5090 - $matches_used++;
5091 - $content .= "## Reference " . $matches_used . " ##\n";
5092 - $content .= $full_text . "\n\n";
5093 -
5094 - // Only include citation URLs if citation links are enabled
5095 - if ($citation_links_enabled) {
5096 - $valid_urls[] = $source_url;
5097 - $content .= "URL: " . $source_url . "\n\n";
5098 - }
5099 - } else {
5100 - // Manual entry — no reference number, no citation
5101 - $content .= "## Information ##\n";
5102 - $content .= $full_text . "\n\n";
5103 - }
5104 -
5105 - // Extract any URLs from the text content itself (only if citation links enabled)
5106 - if ($citation_links_enabled) {
5107 - preg_match_all(
5108 - '#\bhttps?://[^\s<>"\']+#i',
5109 - $full_text,
5110 - $content_urls
5111 - );
5112 - if (!empty($content_urls[0])) {
5113 - $valid_urls = array_merge($valid_urls, $content_urls[0]);
5114 - }
5115 - }
5116 -
5117 - $total_chunks_used += $chunks_in_this_source;
5118 - }
5119 - }
5120 -
5121 - // NEW: Store unique valid URLs for validation
5122 - $this->current_valid_urls = array_unique($valid_urls);
5123 -
5124 - // Store sources and chunks counts for testing/transcript display
5125 - $this->last_similarity_analysis['sources_used'] = $matches_used;
5126 - $this->last_similarity_analysis['total_chunks_used'] = $total_chunks_used;
5127 -
5128 - // Allow add-ons to act on similarity results (e.g. WooCommerce product card display)
5129 - do_action('mxchat_similarity_results', $this->last_similarity_analysis['top_matches'], $bot_id);
5130 -
5131 - // Add response guidelines
5132 - if (empty($top_urls)) {
5133 - $content = "No reference information was found for this query.\n\n";
5134 - } else {
5135 - // Build response guidelines based on citation links setting
5136 - $content .= "\n## Response Guidelines ##\n" .
5137 - "You are an AI Chatbot. Answer naturally and helpfully using only the information from the references above. " .
5138 - "Be conversational and friendly, but never mention your knowledge base or training data. " .
5139 - "If you don't have specific information or are uncertain about any details, it's always " .
5140 - "better to honestly say you don't know rather than making up or guessing at answers. " .
5141 - "When information is incomplete, let them know you are unsure.\n\n";
5142 -
5143 - // Only add hyperlink instructions if citation links are enabled
5144 - if ($citation_links_enabled) {
5145 - $content .= "CRITICAL: When creating hyperlinks, always use proper markdown format with descriptive text: " .
5146 - "[descriptive text](url). NEVER use empty brackets like [](url). The text in brackets must describe what the link is about. " .
5147 - "Only cite references that have a URL. Do not cite or add source labels to Information sections that have no URL.";
5148 2670 } else {
5149 - $content .= "IMPORTANT: Do not include any citation links, source URLs, or hyperlinks in your responses. " .
5150 - "Simply provide helpful answers based on the reference information without citing sources.";
2671 + // For non-PDF content, add directly
2672 + $content .= $chunk_content . "\n\n";
5151 2673 }
5152 2674 }
5153 2675
2676 + // Log content length
2677 + error_log('[MXCHAT] Retrieved content length: ' . strlen(trim($content)) . ' characters');
2678 +
5154 2679 return trim($content);
5155 2680 }
5156 2681
2682 +
5157 2683 /**
5158 - * Fetch and reassemble chunks for a URL from WordPress database
5159 - *
5160 - * @param string $source_url The source URL to fetch chunks for
5161 - * @param int $max_chunks Maximum number of chunks to return (0 = unlimited)
5162 - * @param int &$chunk_count Reference to store the actual number of chunks returned
5163 - * @return string Reassembled content from chunks
2684 + * Find relevant content in Pinecone vector database
5164 2685 */
5165 -private function reassemble_chunks_from_wordpress($source_url, $max_chunks = 0, &$chunk_count = 0) {
5166 - global $wpdb;
5167 - $table = $wpdb->prefix . 'mxchat_system_prompt_content';
2686 +private function find_relevant_content_pinecone($user_embedding) {
2687 + $options = get_option('mxchat_pinecone_addon_options', array());
2688 + $api_key = $options['mxchat_pinecone_api_key'] ?? '';
2689 + $host = $options['mxchat_pinecone_host'] ?? '';
5168 2690
5169 - // Fetch all rows with this source_url
5170 - $rows = $wpdb->get_results($wpdb->prepare(
5171 - "SELECT article_content FROM {$table}
5172 - WHERE source_url = %s
5173 - ORDER BY id ASC",
5174 - $source_url
5175 - ));
5176 -
5177 - if (empty($rows)) {
5178 - $chunk_count = 0;
2691 + if (empty($host) || empty($api_key)) {
2692 + //error_log('Pinecone credentials not properly configured');
5179 2693 return '';
5180 2694 }
5181 2695
5182 - // Parse and sort chunks by index
5183 - $chunks = array();
5184 - foreach ($rows as $row) {
5185 - $parsed = MxChat_Chunker::parse_stored_chunk($row->article_content);
2696 + // Get similarity threshold from WordPress settings
2697 + $similarity_threshold = ((int) get_option('mxchat_similarity_threshold', 80)) / 100;
5186 2698
5187 - if ($parsed['is_chunked']) {
5188 - $chunk_index = $parsed['metadata']['chunk_index'] ?? 0;
5189 - $chunks[$chunk_index] = $parsed['text'];
5190 - } else {
5191 - // Non-chunked content - just return it
5192 - $chunks[] = $parsed['text'];
5193 - }
5194 - }
5195 -
5196 - // Sort by chunk index
5197 - ksort($chunks);
5198 -
5199 - // Apply chunk limit if specified
5200 - if ($max_chunks > 0 && count($chunks) > $max_chunks) {
5201 - $chunks = array_slice($chunks, 0, $max_chunks, true);
5202 - }
5203 -
5204 - // Store actual chunk count
5205 - $chunk_count = count($chunks);
5206 -
5207 - // Reassemble content
5208 - return implode("\n\n", $chunks);
5209 -}
5210 -
5211 -private function find_relevant_content_pinecone($user_embedding, $bot_id = 'default', $bot_config = null) {
5212 - global $wpdb;
5213 -
5214 - //error_log("MXCHAT DEBUG: find_relevant_content_pinecone called");
5215 - //error_log(" - bot_id: " . $bot_id);
5216 - //error_log(" - user_embedding is array: " . (is_array($user_embedding) ? 'yes' : 'no'));
5217 - //error_log(" - user_embedding count: " . (is_array($user_embedding) ? count($user_embedding) : 'N/A'));
5218 -
5219 - // Use bot-specific config or fall back to default
5220 - if ($bot_config === null) {
5221 - $bot_config = $this->get_bot_pinecone_config($bot_id);
5222 - }
5223 -
5224 - $api_key = $bot_config['api_key'] ?? '';
5225 - $host = $bot_config['host'] ?? '';
5226 - $namespace = $bot_config['namespace'] ?? '';
5227 -
5228 - //error_log("MXCHAT DEBUG: Pinecone query parameters:");
5229 - //error_log(" - API Key: " . (empty($api_key) ? 'EMPTY - ERROR!' : 'Present (length: ' . strlen($api_key) . ')'));
5230 - //error_log(" - Host: " . (empty($host) ? 'EMPTY - ERROR!' : $host));
5231 - //error_log(" - Namespace: " . (empty($namespace) ? 'EMPTY (will use default)' : $namespace));
5232 -
5233 - // Initialize similarity analysis storage
5234 - $this->last_similarity_analysis = [
5235 - 'knowledge_base_type' => 'Pinecone',
5236 - 'bot_id' => $bot_id,
5237 - 'namespace' => $namespace,
5238 - 'top_matches' => [],
5239 - 'threshold_used' => 0,
5240 - 'total_checked' => 0
5241 - ];
5242 -
5243 - // NEW: Initialize valid URLs array
5244 - $valid_urls = [];
5245 -
5246 - if (empty($host) || empty($api_key)) {
5247 - //error_log("MXCHAT DEBUG ERROR: Missing Pinecone host or API key!");
5248 - //error_log(" - Host empty: " . (empty($host) ? 'YES' : 'NO'));
5249 - //error_log(" - API key empty: " . (empty($api_key) ? 'YES' : 'NO'));
5250 - // Store empty array for valid URLs since we can't proceed
5251 - $this->current_valid_urls = [];
5252 - return '';
5253 - }
5254 -
5255 - // Get knowledge manager instance for role checking
5256 - $knowledge_manager = MxChat_Knowledge_Manager::get_instance();
5257 -
5258 - // Get the similarity threshold from the bot options or main options
5259 - $bot_options = $this->get_bot_options($bot_id);
5260 - $current_options = !empty($bot_options) ? $bot_options : get_option('mxchat_options', []);
5261 -
5262 - $similarity_threshold = isset($current_options['similarity_threshold'])
5263 - ? ((int) $current_options['similarity_threshold']) / 100
5264 - : 0.35;
5265 -
5266 - $this->last_similarity_analysis['threshold_used'] = $similarity_threshold;
5267 -
5268 2699 // Prepare the query request for Pinecone
5269 2700 $api_endpoint = "https://{$host}/query";
5270 -
2701 +
5271 2702 $request_body = array(
5272 2703 'vector' => $user_embedding,
5273 - 'topK' => 50, // Increased for chunked content grouping - need more candidates to find top N unique URLs
2704 + 'topK' => 5,
5274 2705 'includeMetadata' => true,
5275 2706 'includeValues' => true
5276 2707 );
5277 -
5278 - // Add namespace if specified for this bot
5279 - if (!empty($namespace)) {
5280 - $request_body['namespace'] = $namespace;
5281 - }
5282 -
5283 - //error_log("MXCHAT DEBUG: About to call Pinecone API");
5284 - //error_log(" - Endpoint: " . $api_endpoint);
5285 - //error_log(" - Namespace in request: " . (!empty($namespace) ? $namespace : 'NOT SET'));
5286 -
2708 +
5287 2709 $response = wp_remote_post($api_endpoint, array(
5288 2710 'headers' => array(
5289 2711 'Api-Key' => $api_key,
5290 2712 'accept' => 'application/json',
@@ -5292,879 +2714,46 @@
5292 2714 ),
5293 2715 'body' => wp_json_encode($request_body),
5294 2716 'timeout' => 30
5295 2717 ));
5296 -
2718 +
5297 2719 if (is_wp_error($response)) {
5298 - //error_log("MXCHAT DEBUG ERROR: WP Error in Pinecone request: " . $response->get_error_message());
5299 - // Store empty array for valid URLs
5300 - $this->current_valid_urls = [];
2720 + //error_log('Pinecone query error: ' . $response->get_error_message());
5301 2721 return '';
5302 2722 }
5303 -
2723 +
5304 2724 $response_code = wp_remote_retrieve_response_code($response);
5305 - //error_log("MXCHAT DEBUG: Pinecone response code: " . $response_code);
5306 -
5307 2725 if ($response_code !== 200) {
5308 - $response_body = wp_remote_retrieve_body($response);
5309 - //error_log("MXCHAT DEBUG ERROR: Pinecone API error response: " . substr($response_body, 0, 500));
5310 - // Store empty array for valid URLs
5311 - $this->current_valid_urls = [];
2726 + //error_log('Pinecone API error: ' . wp_remote_retrieve_body($response));
5312 2727 return '';
5313 2728 }
5314 -
5315 - // ADD DETAILED DEBUG SECTION HERE
5316 - $response_body = wp_remote_retrieve_body($response);
5317 - //error_log("MXCHAT DEBUG: Raw Pinecone response length: " . strlen($response_body));
5318 -
5319 - $results = json_decode($response_body, true);
5320 -
5321 - if (json_last_error() !== JSON_ERROR_NONE) {
5322 - //error_log("MXCHAT DEBUG ERROR: JSON decode error: " . json_last_error_msg());
5323 - //error_log("MXCHAT DEBUG: First 500 chars of response: " . substr($response_body, 0, 500));
5324 - // Store empty array for valid URLs
5325 - $this->current_valid_urls = [];
5326 - return '';
5327 - }
5328 -
5329 - //error_log("MXCHAT DEBUG: Pinecone response structure:");
5330 - //error_log(" - Has 'matches' key: " . (isset($results['matches']) ? 'yes' : 'no'));
5331 - //error_log(" - Has 'namespace' key: " . (isset($results['namespace']) ? 'yes (' . $results['namespace'] . ')' : 'no'));
5332 -
2729 +
2730 + $results = json_decode(wp_remote_retrieve_body($response), true);
5333 2731 if (empty($results['matches'])) {
5334 - //error_log("MXCHAT DEBUG: No matches found in Pinecone response");
5335 - //error_log("MXCHAT DEBUG: Response keys: " . implode(', ', array_keys($results)));
5336 - // Store empty array for valid URLs
5337 - $this->current_valid_urls = [];
5338 2732 return '';
5339 2733 }
5340 -
5341 - //error_log("MXCHAT DEBUG: Found " . count($results['matches']) . " matches in Pinecone");
5342 -
5343 - // Log first match details for debugging
5344 - if (!empty($results['matches'][0])) {
5345 - $first_match = $results['matches'][0];
5346 - //error_log("MXCHAT DEBUG: First match details:");
5347 - //error_log(" - Score: " . ($first_match['score'] ?? 'no score'));
5348 - //error_log(" - Has metadata: " . (isset($first_match['metadata']) ? 'yes' : 'no'));
5349 - if (isset($first_match['metadata'])) {
5350 - //error_log(" - Metadata keys: " . implode(', ', array_keys($first_match['metadata'])));
5351 - }
5352 - }
5353 -
2734 +
5354 2735 // Initialize the final content
5355 2736 $content = '';
5356 - $matches_used = 0;
5357 - $matches_used_for_context = [];
5358 - $total_chunks_used = 0;
5359 - $max_total_chunks = isset($current_options['rag_chunks_limit']) ? intval($current_options['rag_chunks_limit']) : 15;
5360 - if ($max_total_chunks < 8) $max_total_chunks = 8;
5361 - if ($max_total_chunks > 20) $max_total_chunks = 20;
5362 - $max_chunks_per_source = 5; // Cap per individual source to limit token usage
5363 2737
5364 - // Check if citation links are enabled (default to 'on' for backwards compatibility)
5365 - // Use fresh options to ensure we get the latest setting value
5366 - $fresh_options = get_option('mxchat_options', []);
5367 - $citation_links_enabled = isset($fresh_options['citation_links_toggle']) ? ($fresh_options['citation_links_toggle'] === 'on') : true;
5368 -
5369 - // NEW CHUNKING LOGIC: Group results by source_url for chunk reassembly
5370 - $url_groups = array();
5371 -
5372 - foreach ($results['matches'] as $index => $match) {
2738 + // Process each match
2739 + foreach ($results['matches'] as $match) {
5373 2740 // Skip if similarity is below threshold
5374 2741 if ($match['score'] < $similarity_threshold) {
5375 2742 continue;
5376 2743 }
5377 2744
5378 - $metadata = $match['metadata'] ?? array();
5379 - $source_url = $metadata['source_url'] ?? '';
5380 - $match_id = $match['id'] ?? '';
5381 -
5382 - // LAZY ROLE CHECK: Only check role for content we're actually considering
5383 - $role_restriction = $this->get_single_vector_role($match_id, $metadata);
5384 - $has_access = $knowledge_manager->mxchat_user_has_content_access($role_restriction);
5385 -
5386 - // Skip if user doesn't have access
5387 - if (!$has_access) {
5388 - continue;
2745 + if (!empty($match['metadata']['text']) && !empty($match['metadata']['source_url'])) {
2746 + // Add content with citation
2747 + $content .= $match['metadata']['text'] . "\n";
2748 + $content .= "Source: " . $match['metadata']['source_url'] . "\n\n";
5389 2749 }
5390 -
5391 - // Use a unique key for manual entries without a source URL
5392 - $group_key = !empty($source_url) ? $source_url : '_manual_' . $match_id;
5393 -
5394 - // Group by source URL (or unique key for manual entries)
5395 - if (!isset($url_groups[$group_key])) {
5396 - $url_groups[$group_key] = array(
5397 - 'source_url' => $source_url,
5398 - 'best_score' => 0,
5399 - 'is_chunked' => isset($metadata['is_chunked']) && $metadata['is_chunked'],
5400 - 'chunks' => array(),
5401 - 'single_text' => ''
5402 - );
5403 - }
5404 -
5405 - // Track best score for this group
5406 - if ($match['score'] > $url_groups[$group_key]['best_score']) {
5407 - $url_groups[$group_key]['best_score'] = $match['score'];
5408 - }
5409 -
5410 - // Store chunk info or single text
5411 - if ($url_groups[$group_key]['is_chunked']) {
5412 - $url_groups[$group_key]['chunks'][] = array(
5413 - 'id' => $match_id,
5414 - 'score' => $match['score'],
5415 - 'chunk_index' => $metadata['chunk_index'] ?? 0,
5416 - 'text' => $metadata['text'] ?? ''
5417 - );
5418 - } else {
5419 - // Non-chunked content - just store the text
5420 - $url_groups[$group_key]['single_text'] = $metadata['text'] ?? '';
5421 - $url_groups[$group_key]['single_id'] = $match_id;
5422 - }
5423 2750 }
5424 2751
5425 - // Sort URL groups by best score (highest first)
5426 - uasort($url_groups, function($a, $b) {
5427 - return $b['best_score'] <=> $a['best_score'];
5428 - });
5429 -
5430 - // Get RAG sources limit from options (default 6, min 3, max 10)
5431 - $rag_sources_limit = isset($current_options['rag_sources_limit']) ? intval($current_options['rag_sources_limit']) : 3;
5432 - if ($rag_sources_limit < 3) $rag_sources_limit = 3;
5433 - if ($rag_sources_limit > 10) $rag_sources_limit = 10;
5434 -
5435 - // Take top N unique URLs based on user setting
5436 - $top_urls = array_slice($url_groups, 0, $rag_sources_limit, true);
5437 -
5438 - // Track which match IDs are actually used for context
5439 - foreach ($top_urls as $group) {
5440 - if ($group['is_chunked']) {
5441 - foreach ($group['chunks'] as $chunk) {
5442 - $matches_used_for_context[] = $chunk['id'];
5443 - }
5444 - } elseif (!empty($group['single_id'])) {
5445 - $matches_used_for_context[] = $group['single_id'];
5446 - }
5447 - }
5448 -
5449 - // Build content from top sources
5450 - foreach ($top_urls as $group_key => $group) {
5451 - $source_url = $group['source_url']; // Use actual source_url, not the group key
5452 -
5453 - // Stop if we've hit the total chunk limit
5454 - if ($total_chunks_used >= $max_total_chunks) {
5455 - break;
5456 - }
5457 -
5458 - $full_text = '';
5459 - $chunks_in_this_source = 1; // Default for non-chunked content
5460 -
5461 - if ($group['is_chunked']) {
5462 - // Calculate how many chunks we can still use (respect both total and per-source caps)
5463 - $chunks_remaining = min($max_chunks_per_source, $max_total_chunks - $total_chunks_used);
5464 -
5465 - // Fetch chunks for this URL with limit
5466 - $full_text = $this->reassemble_chunks_from_pinecone($source_url, $bot_config, $chunks_remaining, $chunks_in_this_source);
5467 -
5468 - // If fetching all chunks fails, fall back to matched chunks
5469 - if (empty($full_text)) {
5470 - // Sort matched chunks by index and concatenate
5471 - usort($group['chunks'], function($a, $b) {
5472 - return $a['chunk_index'] <=> $b['chunk_index'];
5473 - });
5474 -
5475 - $chunk_texts = array();
5476 - $chunks_in_this_source = 0;
5477 - foreach ($group['chunks'] as $chunk) {
5478 - if ($total_chunks_used + $chunks_in_this_source >= $max_total_chunks) {
5479 - break;
5480 - }
5481 - $chunk_texts[] = $chunk['text'];
5482 - $chunks_in_this_source++;
5483 - }
5484 - $full_text = implode("\n\n", $chunk_texts);
5485 - }
5486 - } else {
5487 - $full_text = $group['single_text'];
5488 - $chunks_in_this_source = 1;
5489 - }
5490 -
5491 - if (!empty($full_text)) {
5492 - // Strip URLs from content if citation links are disabled
5493 - if (!$citation_links_enabled) {
5494 - $full_text = preg_replace('#\bhttps?://[^\s<>"\']+#i', '', $full_text);
5495 - $full_text = preg_replace('/\s+/', ' ', trim($full_text)); // Clean up extra spaces
5496 - }
5497 -
5498 - // Use numbered reference for URL-based entries, plain info label for manual entries
5499 - // Manual entries are stored with an internal mxchat:// placeholder URL — never expose them as citations
5500 - if (!empty($source_url) && $source_url !== '#' && strpos($source_url, 'mxchat://') !== 0) {
5501 - $matches_used++;
5502 - $content .= "## Reference " . $matches_used . " ##\n";
5503 - $content .= $full_text . "\n\n";
5504 -
5505 - // Only include citation URLs if citation links are enabled
5506 - if ($citation_links_enabled) {
5507 - $valid_urls[] = $source_url;
5508 - $content .= "URL: " . $source_url . "\n\n";
5509 - }
5510 - } else {
5511 - // Manual entry — no reference number, no citation
5512 - $content .= "## Information ##\n";
5513 - $content .= $full_text . "\n\n";
5514 - }
5515 -
5516 - // Extract any URLs from the text content itself (only if citation links enabled)
5517 - if ($citation_links_enabled) {
5518 - preg_match_all(
5519 - '#\bhttps?://[^\s<>"\']+#i',
5520 - $full_text,
5521 - $content_urls
5522 - );
5523 - if (!empty($content_urls[0])) {
5524 - $valid_urls = array_merge($valid_urls, $content_urls[0]);
5525 - }
5526 - }
5527 -
5528 - $total_chunks_used += $chunks_in_this_source;
5529 - }
5530 - }
5531 -
5532 - // Process ALL matches for testing data (top 10) - with role checking for testing display
5533 - $all_matches = [];
5534 - foreach ($results['matches'] as $index => $match) {
5535 - if ($index >= 10) break; // Limit to top 10 for testing
5536 -
5537 - $match_id = $match['id'] ?? '';
5538 -
5539 - // Check role access for testing display (use cache if available)
5540 - $role_restriction = $this->get_single_vector_role($match_id, $match['metadata']);
5541 - $has_access = $knowledge_manager->mxchat_user_has_content_access($role_restriction);
5542 -
5543 - $source_display = '';
5544 - if (!empty($match['metadata']['source_url'])) {
5545 - $source_display = $match['metadata']['source_url'];
5546 - } else {
5547 - $content_preview = strip_tags($match['metadata']['text'] ?? '');
5548 - $content_preview = preg_replace('/\s+/', ' ', $content_preview);
5549 - $source_display = substr(trim($content_preview), 0, 50) . '...';
5550 - }
5551 -
5552 - $match_id_for_display = $match['id'] ?? $index;
5553 -
5554 - // Check for chunk metadata in Pinecone
5555 - $is_chunk = isset($match['metadata']['is_chunked']) && $match['metadata']['is_chunked'];
5556 - $chunk_index = isset($match['metadata']['chunk_index']) ? intval($match['metadata']['chunk_index']) : null;
5557 - $total_chunks = isset($match['metadata']['total_chunks']) ? intval($match['metadata']['total_chunks']) : null;
5558 -
5559 - // Also detect chunk from vector ID pattern: {hash}_chunk_{index}
5560 - if (!$is_chunk && MxChat_Chunker::is_chunk_vector_id($match_id_for_display)) {
5561 - $is_chunk = true;
5562 - }
5563 -
5564 - $all_matches[] = [
5565 - 'document_id' => $match_id_for_display,
5566 - 'similarity' => $match['score'],
5567 - 'similarity_percentage' => round($match['score'] * 100, 2),
5568 - 'above_threshold' => $match['score'] >= $similarity_threshold,
5569 - 'source_display' => $source_display,
5570 - 'content_preview' => substr(strip_tags($match['metadata']['text'] ?? ''), 0, 100) . '...',
5571 - 'used_for_context' => in_array($match_id_for_display, $matches_used_for_context),
5572 - 'role_restriction' => $role_restriction,
5573 - 'has_access' => $has_access,
5574 - 'filtered_out' => !$has_access,
5575 - 'is_chunk' => $is_chunk,
5576 - 'chunk_index' => $chunk_index,
5577 - 'total_chunks' => $total_chunks
5578 - ];
5579 - }
5580 -
5581 - // Store for testing panel
5582 - $this->last_similarity_analysis['top_matches'] = $all_matches;
5583 - $this->last_similarity_analysis['total_checked'] = count($results['matches']);
5584 - $this->last_similarity_analysis['sources_used'] = $matches_used;
5585 - $this->last_similarity_analysis['total_chunks_used'] = $total_chunks_used;
5586 -
5587 - // NEW: Store unique valid URLs for validation
5588 - $this->current_valid_urls = array_unique($valid_urls);
5589 -
5590 - // Allow add-ons to act on similarity results (e.g. WooCommerce product card display)
5591 - do_action('mxchat_similarity_results', $this->last_similarity_analysis['top_matches'], $bot_id);
5592 -
5593 - // Add response guidelines
5594 - if ($matches_used === 0) {
5595 - $content = "No reference information was found for this query.\n\n";
5596 - } else {
5597 - // Build response guidelines based on citation links setting
5598 - $content .= "\n## Response Guidelines ##\n" .
5599 - "You are an AI Chatbot. Answer naturally and helpfully using only the information from the references above. " .
5600 - "Be conversational and friendly, but never mention your knowledge base or training data. " .
5601 - "If you don't have specific information or are uncertain about any details, it's always " .
5602 - "better to honestly say you don't know rather than making up or guessing at answers. " .
5603 - "When information is incomplete, let them know you are unsure.\n\n";
5604 -
5605 - // Only add hyperlink instructions if citation links are enabled
5606 - if ($citation_links_enabled) {
5607 - $content .= "CRITICAL: When creating hyperlinks, always use proper markdown format with descriptive text: " .
5608 - "[descriptive text](url). NEVER use empty brackets like [](url). The text in brackets must describe what the link is about. " .
5609 - "Only cite references that have a URL. Do not cite or add source labels to Information sections that have no URL.";
5610 - } else {
5611 - $content .= "IMPORTANT: Do not include any citation links, source URLs, or hyperlinks in your responses. " .
5612 - "Simply provide helpful answers based on the reference information without citing sources.";
5613 - }
5614 - }
5615 -
5616 2752 return trim($content);
5617 2753 }
5618 2754
5619 -/**
5620 - * Get role restriction for a single vector (with caching)
5621 - */
5622 -private function get_single_vector_role($vector_id, $metadata = array()) {
5623 - global $wpdb;
5624 -
5625 - if (empty($vector_id)) {
5626 - return 'public';
5627 - }
5628 -
5629 - // Check cache first
5630 - $cache_key = 'mxchat_vector_role_' . $vector_id;
5631 - $cached_role = wp_cache_get($cache_key, 'mxchat_vector_roles');
5632 -
5633 - if ($cached_role !== false) {
5634 - return $cached_role;
5635 - }
5636 -
5637 - $role_restriction = 'public';
5638 -
5639 - // First try Pinecone metadata
5640 - if (!empty($metadata['role_restriction'])) {
5641 - $role_restriction = $metadata['role_restriction'];
5642 - } else {
5643 - // Check WordPress table for user-modified roles
5644 - $roles_table = $wpdb->prefix . 'mxchat_pinecone_roles';
5645 - $stored_role = $wpdb->get_var($wpdb->prepare(
5646 - "SELECT role_restriction FROM {$roles_table} WHERE vector_id = %s",
5647 - $vector_id
5648 - ));
5649 -
5650 - if ($stored_role) {
5651 - $role_restriction = $stored_role;
5652 - }
5653 - }
5654 -
5655 - // Cache individual role for 1 hour
5656 - wp_cache_set($cache_key, $role_restriction, 'mxchat_vector_roles', 3600);
5657 2755
5658 - return $role_restriction;
5659 -}
5660 -
5661 -/**
5662 - * Fetch and reassemble all chunks for a URL from Pinecone
5663 - *
5664 - * @param string $source_url The source URL to fetch chunks for
5665 - * @param array $bot_config Bot-specific Pinecone configuration
5666 - * @return string Reassembled content from all chunks
5667 - */
5668 -private function reassemble_chunks_from_pinecone($source_url, $bot_config, $max_chunks = 0, &$chunk_count = 0) {
5669 - $api_key = $bot_config['api_key'] ?? '';
5670 - $host = $bot_config['host'] ?? '';
5671 - $namespace = $bot_config['namespace'] ?? '';
5672 -
5673 - if (empty($host) || empty($api_key)) {
5674 - $chunk_count = 0;
5675 - return '';
5676 - }
5677 -
5678 - $base_hash = md5($source_url);
5679 -
5680 - // Use Pinecone list API to find all chunk vectors with this prefix
5681 - $list_url = "https://{$host}/vectors/list";
5682 -
5683 - // Limit to max_chunks if specified, otherwise fetch up to 100
5684 - $fetch_limit = ($max_chunks > 0 && $max_chunks < 100) ? $max_chunks : 100;
5685 -
5686 - $list_body = array(
5687 - 'prefix' => $base_hash . '_chunk_',
5688 - 'limit' => $fetch_limit
5689 - );
5690 -
5691 - if (!empty($namespace)) {
5692 - $list_body['namespace'] = $namespace;
5693 - }
5694 -
5695 - $list_response = wp_remote_post($list_url, array(
5696 - 'headers' => array(
5697 - 'Api-Key' => $api_key,
5698 - 'accept' => 'application/json',
5699 - 'content-type' => 'application/json'
5700 - ),
5701 - 'body' => wp_json_encode($list_body),
5702 - 'timeout' => 30
5703 - ));
5704 -
5705 - if (is_wp_error($list_response)) {
5706 - //error_log('[MXCHAT-CHUNK] List API error: ' . $list_response->get_error_message());
5707 - return '';
5708 - }
5709 -
5710 - $list_data = json_decode(wp_remote_retrieve_body($list_response), true);
5711 -
5712 - if (empty($list_data['vectors'])) {
5713 - //error_log('[MXCHAT-CHUNK] No chunk vectors found for URL: ' . $source_url);
5714 - return '';
5715 - }
5716 -
5717 - // Extract vector IDs
5718 - $vector_ids = array();
5719 - foreach ($list_data['vectors'] as $vector) {
5720 - if (isset($vector['id'])) {
5721 - $vector_ids[] = $vector['id'];
5722 - }
5723 - }
5724 -
5725 - if (empty($vector_ids)) {
5726 - return '';
5727 - }
5728 -
5729 - // Fetch all chunk content
5730 - $fetch_url = "https://{$host}/vectors/fetch";
5731 -
5732 - $fetch_body = array(
5733 - 'ids' => $vector_ids
5734 - );
5735 -
5736 - if (!empty($namespace)) {
5737 - $fetch_body['namespace'] = $namespace;
5738 - }
5739 -
5740 - $fetch_response = wp_remote_post($fetch_url, array(
5741 - 'headers' => array(
5742 - 'Api-Key' => $api_key,
5743 - 'accept' => 'application/json',
5744 - 'content-type' => 'application/json'
5745 - ),
5746 - 'body' => wp_json_encode($fetch_body),
5747 - 'timeout' => 30
5748 - ));
5749 -
5750 - if (is_wp_error($fetch_response)) {
5751 - //error_log('[MXCHAT-CHUNK] Fetch API error: ' . $fetch_response->get_error_message());
5752 - return '';
5753 - }
5754 -
5755 - $fetch_data = json_decode(wp_remote_retrieve_body($fetch_response), true);
5756 -
5757 - if (empty($fetch_data['vectors'])) {
5758 - return '';
5759 - }
5760 -
5761 - // Sort chunks by index and reassemble
5762 - $chunks = array();
5763 - foreach ($fetch_data['vectors'] as $id => $vector) {
5764 - $metadata = $vector['metadata'] ?? array();
5765 - $chunk_index = $metadata['chunk_index'] ?? 0;
5766 - $text = $metadata['text'] ?? '';
5767 -
5768 - // Store chunk with its index
5769 - $chunks[$chunk_index] = $text;
5770 - }
5771 -
5772 - // Sort by chunk index
5773 - ksort($chunks);
5774 -
5775 - // Apply chunk limit if specified
5776 - if ($max_chunks > 0 && count($chunks) > $max_chunks) {
5777 - $chunks = array_slice($chunks, 0, $max_chunks, true);
5778 - }
5779 -
5780 - // Store actual chunk count
5781 - $chunk_count = count($chunks);
5782 -
5783 - // Reassemble content
5784 - return implode("\n\n", $chunks);
5785 -}
5786 -
5787 -/**
5788 - * Search for relevant content using OpenAI Vector Store (File Search)
5789 - *
5790 - * @param string $user_query The user's query text
5791 - * @param string $bot_id The bot ID
5792 - * @param array $vectorstore_config Vector Store configuration
5793 - * @return string Formatted context string with references
5794 - */
5795 -private function find_relevant_content_openai_vectorstore($user_query, $bot_id = 'default', $vectorstore_config = array()) {
5796 - //error_log("MXCHAT DEBUG: find_relevant_content_openai_vectorstore called");
5797 - //error_log(" - bot_id: " . $bot_id);
5798 - //error_log(" - user_query length: " . strlen($user_query));
5799 -
5800 - // Get OpenAI API key
5801 - $mxchat_options = get_option('mxchat_options', array());
5802 - $api_key = $mxchat_options['api_key'] ?? '';
5803 -
5804 - // Reset vectorstore error tracking
5805 - $this->last_vectorstore_error = null;
5806 -
5807 - if (empty($api_key)) {
5808 - //error_log("MXCHAT DEBUG ERROR: OpenAI API key not configured");
5809 - $this->last_vectorstore_error = 'Vector Store search failed: OpenAI API key is not configured.';
5810 - $this->current_valid_urls = [];
5811 - return '';
5812 - }
5813 -
5814 - // Get Vector Store configuration
5815 - if (empty($vectorstore_config)) {
5816 - $vectorstore_config = $this->get_bot_vectorstore_config($bot_id);
5817 - }
5818 -
5819 - $vectorstore_ids_string = $vectorstore_config['vectorstore_ids'] ?? '';
5820 - $max_results = $vectorstore_config['max_results'] ?? 5;
5821 -
5822 - if (empty($vectorstore_ids_string)) {
5823 - //error_log("MXCHAT DEBUG ERROR: No Vector Store IDs configured");
5824 - $this->last_vectorstore_error = 'Vector Store search failed: No Vector Store IDs are configured for this bot.';
5825 - $this->current_valid_urls = [];
5826 - return '';
5827 - }
5828 -
5829 - // Parse Vector Store IDs
5830 - $vectorstore_ids = array_map('trim', explode(',', $vectorstore_ids_string));
5831 - $vectorstore_ids = array_filter($vectorstore_ids); // Remove empty values
5832 -
5833 - //error_log("MXCHAT DEBUG: Vector Store IDs: " . implode(', ', $vectorstore_ids));
5834 - //error_log("MXCHAT DEBUG: Max results: " . $max_results);
5835 -
5836 - // Initialize similarity analysis storage
5837 - $this->last_similarity_analysis = [
5838 - 'knowledge_base_type' => 'OpenAI Vector Store',
5839 - 'bot_id' => $bot_id,
5840 - 'vectorstore_ids' => $vectorstore_ids,
5841 - 'top_matches' => [],
5842 - 'threshold_used' => 0,
5843 - 'total_checked' => 0
5844 - ];
5845 -
5846 - $valid_urls = [];
5847 -
5848 - // Get the selected model
5849 - $bot_options = $this->get_bot_options($bot_id);
5850 - $current_options = !empty($bot_options) ? $bot_options : $mxchat_options;
5851 - $selected_model = $current_options['model'] ?? 'gpt-5.1-chat-latest';
5852 -
5853 - // Verify it's an OpenAI model
5854 - if (!$this->is_openai_chat_model($selected_model)) {
5855 - //error_log("MXCHAT DEBUG ERROR: Vector Store search requires OpenAI model. Current: " . $selected_model);
5856 - $this->last_vectorstore_error = 'Vector Store search requires an OpenAI model. Current model: ' . $selected_model;
5857 - $this->current_valid_urls = [];
5858 - return '';
5859 - }
5860 -
5861 - // Use OpenAI Responses API with file_search tool
5862 - $request_body = array(
5863 - 'model' => $selected_model,
5864 - 'input' => $user_query,
5865 - 'tools' => array(
5866 - array(
5867 - 'type' => 'file_search',
5868 - 'vector_store_ids' => $vectorstore_ids,
5869 - 'max_num_results' => intval($max_results)
5870 - )
5871 - ),
5872 - 'include' => array('output[*].file_search_call.search_results')
5873 - );
5874 -
5875 - //error_log("MXCHAT VECTORSTORE: ========== REQUEST START ==========");
5876 - //error_log("MXCHAT VECTORSTORE: Model: " . $selected_model);
5877 - //error_log("MXCHAT VECTORSTORE: Query: " . substr($user_query, 0, 200));
5878 - //error_log("MXCHAT VECTORSTORE: Vector Store IDs: " . implode(', ', $vectorstore_ids));
5879 - //error_log("MXCHAT VECTORSTORE: Max Results: " . $max_results);
5880 - //error_log("MXCHAT VECTORSTORE: Request body: " . wp_json_encode($request_body));
5881 -
5882 - $response = wp_remote_post('https://api.openai.com/v1/responses', array(
5883 - 'headers' => array(
5884 - 'Authorization' => 'Bearer ' . $api_key,
5885 - 'Content-Type' => 'application/json'
5886 - ),
5887 - 'body' => wp_json_encode($request_body),
5888 - 'timeout' => 60
5889 - ));
5890 -
5891 - if (is_wp_error($response)) {
5892 - //error_log("MXCHAT VECTORSTORE ERROR: WP Error: " . $response->get_error_message());
5893 - $this->last_vectorstore_error = 'Vector Store API request failed: ' . $response->get_error_message();
5894 - $this->current_valid_urls = [];
5895 - return '';
5896 - }
5897 -
5898 - $response_code = wp_remote_retrieve_response_code($response);
5899 - //error_log("MXCHAT VECTORSTORE: Response code: " . $response_code);
5900 -
5901 - $response_body = wp_remote_retrieve_body($response);
5902 - //error_log("MXCHAT VECTORSTORE: Raw response (first 2000 chars): " . substr($response_body, 0, 2000));
5903 -
5904 - if ($response_code !== 200) {
5905 - //error_log("MXCHAT VECTORSTORE ERROR: API error response: " . $response_body);
5906 - $api_error_detail = '';
5907 - $decoded_error = json_decode($response_body, true);
5908 - if (isset($decoded_error['error']['message'])) {
5909 - $api_error_detail = $decoded_error['error']['message'];
5910 - }
5911 - $this->last_vectorstore_error = 'Vector Store API returned HTTP ' . $response_code . ($api_error_detail ? ': ' . $api_error_detail : '');
5912 - $this->current_valid_urls = [];
5913 - return '';
5914 - }
5915 - $result = json_decode($response_body, true);
5916 -
5917 - if (json_last_error() !== JSON_ERROR_NONE) {
5918 - //error_log("MXCHAT VECTORSTORE ERROR: JSON decode error: " . json_last_error_msg());
5919 - $this->last_vectorstore_error = 'Vector Store response could not be parsed: ' . json_last_error_msg();
5920 - $this->current_valid_urls = [];
5921 - return '';
5922 - }
5923 -
5924 - // Debug: Log the structure of the result
5925 - //error_log("MXCHAT VECTORSTORE: Result keys: " . implode(', ', array_keys($result)));
5926 - if (isset($result['output'])) {
5927 - //error_log("MXCHAT VECTORSTORE: Output count: " . count($result['output']));
5928 - foreach ($result['output'] as $idx => $out) {
5929 - //error_log("MXCHAT VECTORSTORE: Output[$idx] type: " . ($out['type'] ?? 'unknown'));
5930 - //error_log("MXCHAT VECTORSTORE: Output[$idx] keys: " . implode(', ', array_keys($out)));
5931 - }
5932 - } else {
5933 - //error_log("MXCHAT VECTORSTORE: No 'output' key in result!");
5934 - }
5935 -
5936 - // Extract file search results from the response
5937 - $content = '';
5938 - $matches_used = 0;
5939 - $all_matches = [];
5940 -
5941 - // The Responses API returns output array with tool results
5942 - if (isset($result['output']) && is_array($result['output'])) {
5943 - foreach ($result['output'] as $output_item) {
5944 - // Look for file_search_call results
5945 - if (isset($output_item['type']) && $output_item['type'] === 'file_search_call') {
5946 - //error_log("MXCHAT VECTORSTORE: Found file_search_call output item");
5947 - //error_log("MXCHAT VECTORSTORE: file_search_call keys: " . implode(', ', array_keys($output_item)));
5948 -
5949 - // Check for search_results in the output item directly
5950 - $search_results = $output_item['search_results'] ?? $output_item['results'] ?? [];
5951 - //error_log("MXCHAT VECTORSTORE: Search results count: " . count($search_results));
5952 -
5953 - if (empty($search_results)) {
5954 - //error_log("MXCHAT VECTORSTORE: No search results found in file_search_call");
5955 - //error_log("MXCHAT VECTORSTORE: file_search_call content: " . wp_json_encode($output_item));
5956 - }
5957 -
5958 - foreach ($search_results as $index => $search_result) {
5959 - $filename = $search_result['filename'] ?? '';
5960 - $score = $search_result['score'] ?? 0;
5961 - $text_content = '';
5962 -
5963 - // Extract text content from the result
5964 - // The text can be directly on the result OR nested under content array
5965 - if (isset($search_result['text']) && !empty($search_result['text'])) {
5966 - // Direct text field (OpenAI's actual format)
5967 - $text_content = $search_result['text'];
5968 - //error_log("MXCHAT VECTORSTORE: Found text directly on result[$index], length: " . strlen($text_content));
5969 - } elseif (isset($search_result['content']) && is_array($search_result['content'])) {
5970 - // Nested content array format
5971 - foreach ($search_result['content'] as $content_item) {
5972 - if (isset($content_item['text'])) {
5973 - $text_content .= $content_item['text'] . "\n";
5974 - }
5975 - }
5976 - //error_log("MXCHAT VECTORSTORE: Found text in content array for result[$index], length: " . strlen($text_content));
5977 - } else {
5978 - //error_log("MXCHAT VECTORSTORE: No text found for result[$index]. Keys: " . implode(', ', array_keys($search_result)));
5979 - }
5980 -
5981 - if (!empty($text_content)) {
5982 - $content .= "## Reference " . ($matches_used + 1) . " ##\n";
5983 - $content .= trim($text_content) . "\n\n";
5984 -
5985 - if (!empty($filename)) {
5986 - $content .= "Source: " . $filename . "\n\n";
5987 - }
5988 -
5989 - // Extract URLs from content
5990 - preg_match_all(
5991 - '#\bhttps?://[^\s<>"\']+#i',
5992 - $text_content,
5993 - $content_urls
5994 - );
5995 - if (!empty($content_urls[0])) {
5996 - $valid_urls = array_merge($valid_urls, $content_urls[0]);
5997 - }
5998 -
5999 - $matches_used++;
6000 - }
6001 -
6002 - // Store for similarity analysis
6003 - $all_matches[] = [
6004 - 'document_id' => $filename ?: ('result_' . $index),
6005 - 'similarity' => $score,
6006 - 'similarity_percentage' => round($score * 100, 2),
6007 - 'above_threshold' => true,
6008 - 'source_display' => $filename,
6009 - 'content_preview' => substr(strip_tags($text_content), 0, 100) . '...',
6010 - 'used_for_context' => true,
6011 - 'role_restriction' => 'public',
6012 - 'has_access' => true,
6013 - 'filtered_out' => false
6014 - ];
6015 - }
6016 - }
6017 -
6018 - // Also check for message content with annotations (citations)
6019 - if (isset($output_item['type']) && $output_item['type'] === 'message') {
6020 - if (isset($output_item['content']) && is_array($output_item['content'])) {
6021 - foreach ($output_item['content'] as $content_block) {
6022 - if (isset($content_block['annotations']) && is_array($content_block['annotations'])) {
6023 - foreach ($content_block['annotations'] as $annotation) {
6024 - if (isset($annotation['filename'])) {
6025 - $filename = $annotation['filename'];
6026 - $score = $annotation['score'] ?? 0;
6027 - $text_content = '';
6028 -
6029 - if (isset($annotation['content']) && is_array($annotation['content'])) {
6030 - foreach ($annotation['content'] as $ann_content) {
6031 - if (isset($ann_content['text'])) {
6032 - $text_content .= $ann_content['text'] . "\n";
6033 - }
6034 - }
6035 - }
6036 -
6037 - if (!empty($text_content) && $matches_used < $max_results) {
6038 - $content .= "## Reference " . ($matches_used + 1) . " ##\n";
6039 - $content .= trim($text_content) . "\n\n";
6040 - $content .= "Source: " . $filename . "\n\n";
6041 -
6042 - preg_match_all(
6043 - '#\bhttps?://[^\s<>"\']+#i',
6044 - $text_content,
6045 - $content_urls
6046 - );
6047 - if (!empty($content_urls[0])) {
6048 - $valid_urls = array_merge($valid_urls, $content_urls[0]);
6049 - }
6050 -
6051 - $matches_used++;
6052 -
6053 - $all_matches[] = [
6054 - 'document_id' => $filename,
6055 - 'similarity' => $score,
6056 - 'similarity_percentage' => round($score * 100, 2),
6057 - 'above_threshold' => true,
6058 - 'source_display' => $filename,
6059 - 'content_preview' => substr(strip_tags($text_content), 0, 100) . '...',
6060 - 'used_for_context' => true,
6061 - 'role_restriction' => 'public',
6062 - 'has_access' => true,
6063 - 'filtered_out' => false
6064 - ];
6065 - }
6066 - }
6067 - }
6068 - }
6069 - }
6070 - }
6071 - }
6072 - }
6073 - }
6074 -
6075 - // Store for testing panel
6076 - $this->last_similarity_analysis['top_matches'] = $all_matches;
6077 - $this->last_similarity_analysis['total_checked'] = count($all_matches);
6078 -
6079 - // Store unique valid URLs for validation
6080 - $this->current_valid_urls = array_unique($valid_urls);
6081 -
6082 - // Allow add-ons to act on similarity results (e.g. WooCommerce product card display)
6083 - do_action('mxchat_similarity_results', $this->last_similarity_analysis['top_matches'], $bot_id);
6084 -
6085 - //error_log("MXCHAT VECTORSTORE: ========== SEARCH COMPLETE ==========");
6086 - //error_log("MXCHAT VECTORSTORE: Matches used: " . $matches_used);
6087 - //error_log("MXCHAT VECTORSTORE: All matches count: " . count($all_matches));
6088 - //error_log("MXCHAT VECTORSTORE: Content length: " . strlen($content));
6089 - if ($matches_used > 0) {
6090 - //error_log("MXCHAT VECTORSTORE: Content preview: " . substr($content, 0, 500));
6091 - }
6092 -
6093 - // Check if citation links are enabled
6094 - $citation_links_enabled = ($mxchat_options['citation_links_toggle'] ?? 'on') === 'on';
6095 -
6096 - // Add response guidelines
6097 - if ($matches_used === 0) {
6098 - //error_log("MXCHAT VECTORSTORE: No matches found - returning empty reference message");
6099 - $content = "No reference information was found for this query.\n\n";
6100 - } else {
6101 - // Build response guidelines based on citation links setting
6102 - $content .= "\n## Response Guidelines ##\n" .
6103 - "You are an AI Chatbot. Answer naturally and helpfully using only the information from the references above. " .
6104 - "Be conversational and friendly, but never mention your knowledge base or training data. " .
6105 - "If you don't have specific information or are uncertain about any details, it's always " .
6106 - "better to honestly say you don't know rather than making up or guessing at answers. " .
6107 - "When information is incomplete, let them know you are unsure.\n\n";
6108 -
6109 - // Only add hyperlink instructions if citation links are enabled
6110 - if ($citation_links_enabled) {
6111 - $content .= "CRITICAL: When creating hyperlinks, always use proper markdown format with descriptive text: " .
6112 - "[descriptive text](url). NEVER use empty brackets like [](url). The text in brackets must describe what the link is about.";
6113 - } else {
6114 - $content .= "IMPORTANT: Do not include any citation links, source URLs, or hyperlinks in your responses. " .
6115 - "Simply provide helpful answers based on the reference information without citing sources.";
6116 - }
6117 - }
6118 -
6119 - //error_log("MXCHAT DEBUG: Vector Store search complete. Matches used: " . $matches_used);
6120 -
6121 - return trim($content);
6122 -}
6123 -
6124 -/**
6125 - * Check if the given model is an OpenAI chat model
6126 - *
6127 - * @param string $model The model ID
6128 - * @return bool True if it's an OpenAI model
6129 - */
6130 -private function is_openai_chat_model($model) {
6131 - $openai_prefixes = array('gpt-', 'o1-', 'o3-');
6132 - foreach ($openai_prefixes as $prefix) {
6133 - if (strpos($model, $prefix) === 0) {
6134 - return true;
6135 - }
6136 - }
6137 - return false;
6138 -}
6139 -
6140 -/**
6141 - * Get bot-specific Vector Store configuration
6142 - *
6143 - * @param string $bot_id The bot ID
6144 - * @return array Configuration array
6145 - */
6146 -private function get_bot_vectorstore_config($bot_id = 'default') {
6147 - $vectorstore_options = get_option('mxchat_openai_vectorstore_options', array());
6148 -
6149 - // Default global settings
6150 - $default_config = array(
6151 - 'use_vectorstore' => ($vectorstore_options['mxchat_use_openai_vectorstore'] ?? '0') === '1',
6152 - 'vectorstore_ids' => $vectorstore_options['mxchat_vectorstore_ids'] ?? '',
6153 - 'max_results' => $vectorstore_options['mxchat_vectorstore_max_results'] ?? 5
6154 - );
6155 -
6156 - // Allow multi-bot plugin to override with bot-specific settings
6157 - $bot_config = apply_filters('mxchat_get_bot_vectorstore_config', $default_config, $bot_id);
6158 -
6159 - // Preserve max_results from global settings if not set in bot config
6160 - if (!isset($bot_config['max_results'])) {
6161 - $bot_config['max_results'] = $default_config['max_results'];
6162 - }
6163 -
6164 - return $bot_config;
6165 -}
6166 -
6167 2756 private function mxchat_find_relevant_products($user_embedding) {
6168 2757 //error_log('MXChat Vector Search: Starting product search...');
6169 2758
6170 2759 // Retrieve the add-on settings from the database
@@ -6182,78 +2771,77 @@
6182 2771 //error_log('MXChat Vector Search: Using WordPress database for products');
6183 2772 return $this->find_relevant_products_wordpress($user_embedding);
6184 2773 }
6185 2774 }
2775 +
6186 2776 private function find_relevant_products_wordpress($user_embedding) {
6187 2777 global $wpdb;
6188 2778 $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
2779 + $cache_key = 'mxchat_system_prompt_embeddings';
2780 + $batch_size = 500;
6189 2781
6190 - if (!is_array($user_embedding)) {
6191 - return '';
6192 - }
2782 + // Original WordPress database search logic
2783 + // [Previous implementation remains the same]
2784 + $embeddings = wp_cache_get($cache_key, 'mxchat_system_prompts');
2785 + if ($embeddings === false) {
2786 + $embeddings = [];
2787 + $offset = 0;
6193 2788
6194 - // Streaming top-K pass: scan rows in small batches, keep only the top 3
6195 - // results above the similarity threshold. Peak memory is bounded by
6196 - // $batch_size embedding rows plus a 3-element top list.
6197 - $batch_size = 250;
6198 - $similarity_threshold = 0.85;
6199 - $top_k = 3;
6200 - $top_results = [];
6201 - $offset = 0;
2789 + do {
2790 + $query = $wpdb->prepare(
2791 + "SELECT id, embedding_vector
2792 + FROM {$system_prompt_table}
2793 + LIMIT %d OFFSET %d",
2794 + $batch_size,
2795 + $offset
2796 + );
6202 2797
6203 - do {
6204 - $batch = $wpdb->get_results($wpdb->prepare(
6205 - "SELECT id, embedding_vector
6206 - FROM {$system_prompt_table}
6207 - LIMIT %d OFFSET %d",
6208 - $batch_size,
6209 - $offset
6210 - ));
2798 + $batch = $wpdb->get_results($query);
2799 + if (empty($batch)) {
2800 + break;
2801 + }
6211 2802
6212 - if (empty($batch)) {
6213 - break;
6214 - }
2803 + $embeddings = array_merge($embeddings, $batch);
2804 + $offset += $batch_size;
6215 2805
6216 - foreach ($batch as $row) {
6217 - $database_embedding = $row->embedding_vector
6218 - ? unserialize($row->embedding_vector, ['allowed_classes' => false])
6219 - : null;
2806 + unset($batch);
6220 2807
6221 - if (!is_array($database_embedding)) {
6222 - unset($database_embedding);
6223 - continue;
6224 - }
2808 + } while (true);
6225 2809
2810 + if (empty($embeddings)) {
2811 + return '';
2812 + }
2813 + wp_cache_set($cache_key, $embeddings, 'mxchat_system_prompts', 3600);
2814 + }
2815 +
2816 + $relevant_results = [];
2817 + foreach ($embeddings as $embedding) {
2818 + $database_embedding = $embedding->embedding_vector
2819 + ? unserialize($embedding->embedding_vector, ['allowed_classes' => false])
2820 + : null;
2821 + if (is_array($database_embedding) && is_array($user_embedding)) {
6226 2822 $similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $database_embedding);
6227 - unset($database_embedding);
6228 -
6229 - if ($similarity < $similarity_threshold) {
6230 - continue;
6231 - }
6232 -
6233 - // Insert into bounded top-K (kept sorted descending)
6234 - if (count($top_results) < $top_k) {
6235 - $top_results[] = ['id' => $row->id, 'similarity' => $similarity];
6236 - usort($top_results, function ($a, $b) {
6237 - return $b['similarity'] <=> $a['similarity'];
6238 - });
6239 - } elseif ($similarity > $top_results[$top_k - 1]['similarity']) {
6240 - $top_results[$top_k - 1] = ['id' => $row->id, 'similarity' => $similarity];
6241 - usort($top_results, function ($a, $b) {
6242 - return $b['similarity'] <=> $a['similarity'];
6243 - });
6244 - }
2823 + $relevant_results[] = [
2824 + 'id' => $embedding->id,
2825 + 'similarity' => $similarity
2826 + ];
6245 2827 }
2828 + unset($database_embedding);
2829 + }
6246 2830
6247 - unset($batch);
6248 - $offset += $batch_size;
6249 - } while (true);
2831 + // Use fixed threshold for products
2832 + $similarity_threshold = 0.85;
6250 2833
6251 - if (empty($top_results)) {
6252 - return '';
6253 - }
2834 + $relevant_results = array_filter($relevant_results, function ($result) use ($similarity_threshold) {
2835 + return $result['similarity'] >= $similarity_threshold;
2836 + });
2837 + usort($relevant_results, function ($a, $b) {
2838 + return $b['similarity'] <=> $a['similarity'];
2839 + });
6254 2840
2841 + $top_results = array_slice($relevant_results, 0, 5);
6255 2842 $content = '';
2843 +
6256 2844 foreach ($top_results as $result) {
6257 2845 $chunk_content = $this->fetch_content_with_product_links($result['id']);
6258 2846 $content .= $chunk_content . "\n\n";
6259 2847 }
@@ -6260,9 +2848,9 @@
6260 2848
6261 2849 return trim($content);
6262 2850 }
6263 2851
6264 -
2852 +// Modified search function with correct filter syntax
6265 2853 private function find_relevant_products_pinecone($user_embedding) {
6266 2854 //error_log('Starting Pinecone product search...');
6267 2855
6268 2856 $options = get_option('mxchat_pinecone_addon_options', array());
@@ -6359,2148 +2947,319 @@
6359 2947
6360 2948 return null;
6361 2949 }
6362 2950
6363 -/**
6364 - * Get system instructions for a specific bot or default
6365 - * Checks for multi-bot add-on and uses bot-specific instructions if available
6366 - * Automatically strips URLs if citation links are disabled
6367 - * Replaces {visitor_name} placeholder with actual visitor name if available
6368 - *
6369 - * @param string $bot_id The bot ID to get instructions for
6370 - * @param string $session_id Optional session ID to lookup visitor name
6371 - */
6372 -private function get_system_instructions($bot_id = 'default', $session_id = '') {
6373 - $instructions = '';
6374 -
6375 - // Check if multi-bot add-on is active
6376 - if (class_exists('MxChat_Multi_Bot_Core_Manager') && $bot_id !== 'default') {
6377 - // Get bot-specific options from multi-bot add-on
6378 - $bot_options = apply_filters('mxchat_get_bot_options', array(), $bot_id);
6379 -
6380 - // If bot has custom system instructions, use those
6381 - if (!empty($bot_options['system_prompt_instructions'])) {
6382 - $instructions = $bot_options['system_prompt_instructions'];
6383 - }
6384 - }
6385 -
6386 - // Fall back to default system instructions
6387 - if (empty($instructions)) {
6388 - $instructions = isset($this->options['system_prompt_instructions']) ? $this->options['system_prompt_instructions'] : '';
6389 - }
6390 -
6391 - // Check if citation links are disabled - if so, strip URLs from instructions
6392 - $fresh_options = get_option('mxchat_options', []);
6393 - $citation_links_enabled = isset($fresh_options['citation_links_toggle']) ? ($fresh_options['citation_links_toggle'] === 'on') : true;
6394 -
6395 - if (!$citation_links_enabled && !empty($instructions)) {
6396 - $instructions = preg_replace('#\bhttps?://[^\s<>"\']+#i', '', $instructions);
6397 - $instructions = preg_replace('/\s+/', ' ', trim($instructions)); // Clean up extra spaces
6398 - }
6399 -
6400 - // Replace {visitor_name} placeholder with actual visitor name if available
6401 - if (!empty($instructions) && !empty($session_id) && stripos($instructions, '{visitor_name}') !== false) {
6402 - $name_option_key = "mxchat_name_{$session_id}";
6403 - $visitor_name = get_option($name_option_key, '');
6404 -
6405 - if (!empty($visitor_name)) {
6406 - $instructions = str_ireplace('{visitor_name}', sanitize_text_field($visitor_name), $instructions);
6407 - } else {
6408 - // Remove placeholder if no name is available
6409 - $instructions = str_ireplace('{visitor_name}', '', $instructions);
6410 - $instructions = preg_replace('/\s{2,}/', ' ', trim($instructions)); // Clean up extra spaces
6411 - }
6412 - }
6413 -
6414 - // Allow developers to filter system instructions and process shortcodes
6415 - $instructions = apply_filters('mxchat_system_instructions', $instructions, $bot_id, $session_id);
6416 - $instructions = do_shortcode($instructions);
6417 -
6418 - return $instructions;
6419 -}
6420 -/**
6421 - * Get the current bot ID from session or request context
6422 - */
6423 -private function get_current_bot_id($session_id = '') {
6424 - // First, check if bot_id is passed in the current request
6425 - if (isset($_POST['bot_id']) && !empty($_POST['bot_id'])) {
6426 - return sanitize_key($_POST['bot_id']);
6427 - }
6428 -
6429 - // If not in POST, try to get it from session data
6430 - if (!empty($session_id)) {
6431 - $bot_id = get_option("mxchat_session_bot_{$session_id}", '');
6432 - if (!empty($bot_id)) {
6433 - return $bot_id;
6434 - }
6435 - }
6436 -
6437 - // Fall back to default
6438 - return 'default';
6439 -}
6440 -private function mxchat_generate_response($relevant_content, $api_key, $xai_api_key, $claude_api_key, $deepseek_api_key, $gemini_api_key, $openrouter_api_key, $conversation_history, $streaming = false, $session_id = '', $testing_data = null, $selected_model = 'gpt-5.1-chat-latest') {
2951 +// Function definition
2952 +private function mxchat_generate_response($relevant_content, $api_key, $xai_api_key, $claude_api_key, $deepseek_api_key, $conversation_history) {
6441 2953 try {
6442 2954 if (!$relevant_content) {
6443 - $error_response = [
6444 - 'error' => esc_html__("I couldn't find relevant information on that topic.", 'mxchat'),
6445 - 'error_code' => 'no_relevant_content'
6446 - ];
6447 -
6448 - if ($testing_data !== null) {
6449 - $error_response['testing_data'] = $testing_data;
6450 - }
6451 -
6452 - return $error_response;
2955 + return esc_html__("I'm sorry, I couldn't find relevant information on that topic.", 'mxchat');
6453 2956 }
6454 -
2957 +
2958 + // Ensure conversation_history is an array
6455 2959 if (!is_array($conversation_history)) {
6456 2960 $conversation_history = array();
6457 2961 }
6458 -
6459 - // Check if this is an OpenRouter model
6460 - if ($selected_model === 'openrouter') {
6461 - // Get the actual OpenRouter model from options
6462 - $openrouter_selected_model = $this->options['openrouter_selected_model'] ?? '';
6463 -
6464 - if (empty($openrouter_selected_model)) {
6465 - $error_response = [
6466 - 'error' => esc_html__('No OpenRouter model selected. Please select a model in settings.', 'mxchat'),
6467 - 'error_code' => 'no_openrouter_model_selected'
6468 - ];
6469 - if ($testing_data !== null) {
6470 - $error_response['testing_data'] = $testing_data;
6471 - }
6472 - return $error_response;
6473 - }
6474 -
6475 - if (empty($openrouter_api_key)) {
6476 - $error_response = [
6477 - 'error' => esc_html__('OpenRouter API key is not configured', 'mxchat'),
6478 - 'error_code' => 'missing_openrouter_api_key'
6479 - ];
6480 - if ($testing_data !== null) {
6481 - $error_response['testing_data'] = $testing_data;
6482 - }
6483 - return $error_response;
6484 - }
6485 -
6486 - if ($streaming) {
6487 - return $this->mxchat_generate_response_openrouter_stream(
6488 - $openrouter_selected_model,
6489 - $openrouter_api_key,
6490 - $conversation_history,
6491 - $relevant_content,
6492 - $session_id,
6493 - $testing_data
6494 - );
6495 - } else {
6496 - $response = $this->mxchat_generate_response_openrouter(
6497 - $openrouter_selected_model,
6498 - $openrouter_api_key,
6499 - $conversation_history,
6500 - $relevant_content
6501 - );
6502 - }
6503 -
6504 - if (is_array($response) && isset($response['error'])) {
6505 - if ($testing_data !== null) {
6506 - $response['testing_data'] = $testing_data;
6507 - }
6508 - return $response;
6509 - }
6510 -
6511 - return $response;
6512 - }
6513 2962
2963 + // Get selected model with default fallback
2964 + $selected_model = isset($this->options['model']) ? $this->options['model'] : 'gpt-4o';
2965 +
6514 2966 // Extract model prefix to determine the provider
6515 2967 $model_parts = explode('-', $selected_model);
6516 2968 $provider = strtolower($model_parts[0]);
6517 -
2969 +
6518 2970 // Handle model selection based on provider prefix
6519 2971 switch ($provider) {
6520 - case 'gemini':
6521 - if (empty($gemini_api_key)) {
6522 - $error_response = [
6523 - 'error' => esc_html__('Google Gemini API key is not configured', 'mxchat'),
6524 - 'error_code' => 'missing_gemini_api_key'
6525 - ];
6526 - if ($testing_data !== null) {
6527 - $error_response['testing_data'] = $testing_data;
6528 - }
6529 - return $error_response;
2972 + case 'claude':
2973 + if (empty($claude_api_key)) {
2974 + throw new Exception(esc_html__('Claude API key is not configured', 'mxchat'));
6530 2975 }
6531 - $response = $this->mxchat_generate_response_gemini(
2976 + return $this->mxchat_generate_response_claude(
6532 2977 $selected_model,
6533 - $gemini_api_key,
2978 + $claude_api_key,
6534 2979 $conversation_history,
6535 2980 $relevant_content
6536 2981 );
6537 - break;
6538 -
6539 - case 'claude':
6540 - if (empty($claude_api_key)) {
6541 - $error_response = [
6542 - 'error' => esc_html__('Claude API key is not configured', 'mxchat'),
6543 - 'error_code' => 'missing_claude_api_key'
6544 - ];
6545 - if ($testing_data !== null) {
6546 - $error_response['testing_data'] = $testing_data;
6547 - }
6548 - return $error_response;
6549 - }
6550 - if ($streaming) {
6551 - return $this->mxchat_generate_response_claude_stream(
6552 - $selected_model,
6553 - $claude_api_key,
6554 - $conversation_history,
6555 - $relevant_content,
6556 - $session_id,
6557 - $testing_data
6558 - );
6559 - } else {
6560 - $response = $this->mxchat_generate_response_claude(
6561 - $selected_model,
6562 - $claude_api_key,
6563 - $conversation_history,
6564 - $relevant_content
6565 - );
6566 - }
6567 - break;
6568 -
2982 +
6569 2983 case 'grok':
6570 2984 if (empty($xai_api_key)) {
6571 - $error_response = [
6572 - 'error' => esc_html__('X.AI API key is not configured', 'mxchat'),
6573 - 'error_code' => 'missing_xai_api_key'
6574 - ];
6575 - if ($testing_data !== null) {
6576 - $error_response['testing_data'] = $testing_data;
6577 - }
6578 - return $error_response;
2985 + throw new Exception(esc_html__('X.AI API key is not configured', 'mxchat'));
6579 2986 }
6580 - if ($streaming) {
6581 - return $this->mxchat_generate_response_xai_stream(
6582 - $selected_model,
6583 - $xai_api_key,
6584 - $conversation_history,
6585 - $relevant_content,
6586 - $session_id,
6587 - $testing_data
6588 - );
6589 - } else {
6590 - $response = $this->mxchat_generate_response_xai(
6591 - $selected_model,
6592 - $xai_api_key,
6593 - $conversation_history,
6594 - $relevant_content
6595 - );
6596 - }
6597 - break;
6598 -
2987 + return $this->mxchat_generate_response_xai(
2988 + $selected_model,
2989 + $xai_api_key,
2990 + $conversation_history,
2991 + $relevant_content
2992 + );
2993 +
6599 2994 case 'deepseek':
6600 2995 if (empty($deepseek_api_key)) {
6601 - $error_response = [
6602 - 'error' => esc_html__('DeepSeek API key is not configured', 'mxchat'),
6603 - 'error_code' => 'missing_deepseek_api_key'
6604 - ];
6605 - if ($testing_data !== null) {
6606 - $error_response['testing_data'] = $testing_data;
6607 - }
6608 - return $error_response;
2996 + throw new Exception(esc_html__('DeepSeek API key is not configured', 'mxchat'));
6609 2997 }
6610 - if ($streaming) {
6611 - return $this->mxchat_generate_response_deepseek_stream(
6612 - $selected_model,
6613 - $deepseek_api_key,
6614 - $conversation_history,
6615 - $relevant_content,
6616 - $session_id,
6617 - $testing_data
6618 - );
6619 - } else {
6620 - $response = $this->mxchat_generate_response_deepseek(
6621 - $selected_model,
6622 - $deepseek_api_key,
6623 - $conversation_history,
6624 - $relevant_content
6625 - );
6626 - }
6627 - break;
6628 -
2998 + return $this->mxchat_generate_response_deepseek(
2999 + $selected_model,
3000 + $deepseek_api_key,
3001 + $conversation_history,
3002 + $relevant_content
3003 + );
3004 +
6629 3005 case 'gpt':
6630 - case 'o1':
6631 3006 if (empty($api_key)) {
6632 - $error_response = [
6633 - 'error' => esc_html__('OpenAI API key is not configured', 'mxchat'),
6634 - 'error_code' => 'missing_openai_api_key'
6635 - ];
6636 - if ($testing_data !== null) {
6637 - $error_response['testing_data'] = $testing_data;
6638 - }
6639 - return $error_response;
3007 + throw new Exception(esc_html__('OpenAI API key is not configured', 'mxchat'));
6640 3008 }
3009 + return $this->mxchat_generate_response_openai(
3010 + $selected_model,
3011 + $api_key,
3012 + $conversation_history,
3013 + $relevant_content
3014 + );
6641 3015
6642 - // Check if web search is enabled for this OpenAI model
6643 - $web_search_enabled = isset($this->options['enable_web_search']) && $this->options['enable_web_search'] === 'on';
6644 - // Models that don't support web search
6645 - $unsupported_web_search_models = array('gpt-4.1-nano');
6646 - $model_supports_web_search = !in_array($selected_model, $unsupported_web_search_models);
6647 -
6648 - if ($web_search_enabled && $model_supports_web_search) {
6649 - // Use Responses API (required for some models, or when web search is enabled)
6650 - return $this->mxchat_generate_response_openai_web_search(
6651 - $selected_model,
6652 - $api_key,
6653 - $conversation_history,
6654 - $relevant_content,
6655 - $session_id,
6656 - $testing_data,
6657 - $streaming
6658 - );
6659 - } elseif ($streaming) {
6660 - return $this->mxchat_generate_response_openai_stream(
6661 - $selected_model,
6662 - $api_key,
6663 - $conversation_history,
6664 - $relevant_content,
6665 - $session_id,
6666 - $testing_data
6667 - );
6668 - } else {
6669 - $response = $this->mxchat_generate_response_openai(
6670 - $selected_model,
6671 - $api_key,
6672 - $conversation_history,
6673 - $relevant_content
6674 - );
6675 - }
6676 - break;
6677 -
6678 3016 default:
3017 + // Default to OpenAI for custom models or unrecognized prefixes
6679 3018 if (empty($api_key)) {
6680 - $error_response = [
6681 - 'error' => esc_html__('OpenAI API key is not configured', 'mxchat'),
6682 - 'error_code' => 'missing_openai_api_key'
6683 - ];
6684 - if ($testing_data !== null) {
6685 - $error_response['testing_data'] = $testing_data;
6686 - }
6687 - return $error_response;
3019 + throw new Exception(esc_html__('OpenAI API key is not configured', 'mxchat'));
6688 3020 }
6689 -
6690 - // Check if web search is enabled (default case also handles OpenAI models)
6691 - $web_search_enabled = isset($this->options['enable_web_search']) && $this->options['enable_web_search'] === 'on';
6692 - $unsupported_web_search_models = array('gpt-4.1-nano');
6693 - $model_supports_web_search = !in_array($selected_model, $unsupported_web_search_models);
6694 -
6695 - if ($web_search_enabled && $model_supports_web_search) {
6696 - return $this->mxchat_generate_response_openai_web_search(
6697 - $selected_model,
6698 - $api_key,
6699 - $conversation_history,
6700 - $relevant_content,
6701 - $session_id,
6702 - $testing_data,
6703 - $streaming
6704 - );
6705 - } elseif ($streaming) {
6706 - return $this->mxchat_generate_response_openai_stream(
6707 - $selected_model,
6708 - $api_key,
6709 - $conversation_history,
6710 - $relevant_content,
6711 - $session_id,
6712 - $testing_data
6713 - );
6714 - } else {
6715 - $response = $this->mxchat_generate_response_openai(
6716 - $selected_model,
6717 - $api_key,
6718 - $conversation_history,
6719 - $relevant_content
6720 - );
6721 - }
6722 - break;
6723 - }
6724 -
6725 - if (is_array($response) && isset($response['error'])) {
6726 - if ($testing_data !== null) {
6727 - $response['testing_data'] = $testing_data;
6728 - }
6729 - return $response;
6730 - }
6731 -
6732 - return $response;
6733 -
6734 - } catch (Exception $e) {
6735 - $error_response = [
6736 - 'error' => sprintf(esc_html__('An error occurred: %s', 'mxchat'), esc_html($e->getMessage())),
6737 - 'error_code' => 'system_exception',
6738 - 'exception_details' => $e->getMessage()
6739 - ];
6740 -
6741 - if ($testing_data !== null) {
6742 - $error_response['testing_data'] = $testing_data;
6743 - }
6744 -
6745 - return $error_response;
6746 - }
6747 -}
6748 -private function mxchat_generate_response_openrouter_stream($selected_model, $openrouter_api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) {
6749 - try {
6750 - $bot_id = $this->get_current_bot_id($session_id);
6751 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
6752 -
6753 - if (!is_array($conversation_history)) {
6754 - $conversation_history = array();
6755 - }
6756 -
6757 - $formatted_conversation = array();
6758 -
6759 - $formatted_conversation[] = array(
6760 - 'role' => 'system',
6761 - 'content' => $system_prompt_instructions . " " . $relevant_content
6762 - );
6763 -
6764 - foreach ($conversation_history as $message) {
6765 - if (is_array($message) && isset($message['role']) && isset($message['content'])) {
6766 - $role = $message['role'];
6767 - if ($role === 'bot' || $role === 'agent') {
6768 - $role = 'assistant';
6769 - }
6770 - if (!in_array($role, ['system', 'assistant', 'user'])) {
6771 - $role = 'user';
6772 - }
6773 - $formatted_conversation[] = array(
6774 - 'role' => $role,
6775 - 'content' => $message['content']
3021 + return $this->mxchat_generate_response_openai(
3022 + $selected_model,
3023 + $api_key,
3024 + $conversation_history,
3025 + $relevant_content
6776 3026 );
6777 - }
6778 3027 }
6779 -
6780 - if (headers_sent() || !function_exists('curl_init')) {
6781 - $regular_response = $this->mxchat_generate_response_openrouter(
6782 - $selected_model,
6783 - $openrouter_api_key,
6784 - $conversation_history,
6785 - $relevant_content
6786 - );
6787 -
6788 - // Save bot response to transcript
6789 - if (!empty($regular_response) && !empty($session_id)) {
6790 - $this->mxchat_save_chat_message($session_id, 'bot', $regular_response);
6791 - }
6792 -
6793 - $response_data = [
6794 - 'text' => $regular_response,
6795 - 'html' => '',
6796 - 'session_id' => $session_id
6797 - ];
6798 -
6799 - if ($testing_data !== null) {
6800 - $response_data['testing_data'] = $testing_data;
6801 - }
6802 -
6803 - header('Content-Type: application/json');
6804 - echo json_encode($response_data);
6805 - return true;
6806 - }
6807 -
6808 - $body = json_encode([
6809 - 'model' => $selected_model,
6810 - 'messages' => $formatted_conversation,
6811 - 'temperature' => 1,
6812 - 'stream' => true
6813 - ]);
6814 -
6815 - // Setup streaming headers now that we know we're actually streaming
6816 - $this->setup_streaming_headers();
6817 -
6818 - $ch = curl_init();
6819 - curl_setopt($ch, CURLOPT_URL, 'https://openrouter.ai/api/v1/chat/completions');
6820 - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
6821 - curl_setopt($ch, CURLOPT_POST, true);
6822 - curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
6823 - curl_setopt($ch, CURLOPT_HTTPHEADER, array(
6824 - 'Content-Type: application/json',
6825 - 'Authorization: Bearer ' . $openrouter_api_key,
6826 - 'HTTP-Referer: ' . home_url(),
6827 - 'X-Title: ' . get_bloginfo('name')
6828 - ));
6829 - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
6830 - curl_setopt($ch, CURLOPT_TIMEOUT, 60);
6831 -
6832 - $full_response = '';
6833 - $stream_started = false;
6834 - $buffer = '';
6835 -
6836 - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, $testing_data) {
6837 - if (!$stream_started && $testing_data !== null) {
6838 - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n";
6839 - flush();
6840 - $stream_started = true;
6841 - }
6842 -
6843 - $buffer .= $data;
6844 - $lines = explode("\n", $buffer);
6845 - $buffer = array_pop($lines);
6846 -
6847 - foreach ($lines as $line) {
6848 - if (trim($line) === '') {
6849 - continue;
6850 - }
6851 -
6852 - if (strpos($line, 'data: ') !== 0) {
6853 - continue;
6854 - }
6855 -
6856 - $json_str = substr($line, 6);
6857 -
6858 - if (trim($json_str) === '[DONE]') {
6859 - echo "data: [DONE]\n\n";
6860 - flush();
6861 - continue;
6862 - }
6863 -
6864 - $json = json_decode(trim($json_str), true);
6865 - if ($json && isset($json['choices'][0]['delta']['content'])) {
6866 - $content = $json['choices'][0]['delta']['content'];
6867 - $full_response .= $content;
6868 -
6869 - echo "data: " . json_encode(['content' => $content]) . "\n\n";
6870 - flush();
6871 - }
6872 - }
6873 -
6874 - return strlen($data);
6875 - });
6876 -
6877 - $response = curl_exec($ch);
6878 - $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
6879 -
6880 - if (curl_errno($ch) || $http_code !== 200) {
6881 - curl_close($ch);
6882 -
6883 - $regular_response = $this->mxchat_generate_response_openrouter(
6884 - $selected_model,
6885 - $openrouter_api_key,
6886 - $conversation_history,
6887 - $relevant_content
6888 - );
6889 -
6890 - $response_data = [
6891 - 'text' => $regular_response,
6892 - 'html' => '',
6893 - 'session_id' => $session_id
6894 - ];
6895 -
6896 - if ($testing_data !== null) {
6897 - $response_data['testing_data'] = $testing_data;
6898 - }
6899 -
6900 - header('Content-Type: application/json');
6901 - echo json_encode($response_data);
6902 - return true;
6903 - }
6904 -
6905 - curl_close($ch);
6906 -
6907 - if (!empty($full_response) && !empty($session_id)) {
6908 - // Prepare RAG context for streaming response
6909 - $rag_context_for_storage = null;
6910 - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']);
6911 - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis);
6912 -
6913 - if ($has_rag_data || $has_action_data) {
6914 - $rag_context_for_storage = [];
6915 -
6916 - if ($has_rag_data) {
6917 - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches'];
6918 - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? [];
6919 - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35;
6920 - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database';
6921 - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0;
6922 - }
6923 -
6924 - if ($has_action_data) {
6925 - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis;
6926 - }
6927 - }
6928 - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage);
6929 - }
6930 -
6931 - return true;
6932 -
6933 3028 } catch (Exception $e) {
6934 - $regular_response = $this->mxchat_generate_response_openrouter(
6935 - $selected_model,
6936 - $openrouter_api_key,
6937 - $conversation_history,
6938 - $relevant_content
3029 + //error_log('MXChat Error: ' . $e->getMessage());
3030 + return sprintf(
3031 + esc_html__('An error occurred: %s', 'mxchat'),
3032 + esc_html($e->getMessage())
6939 3033 );
6940 -
6941 - $response_data = [
6942 - 'text' => $regular_response,
6943 - 'html' => '',
6944 - 'session_id' => $session_id
6945 - ];
6946 -
6947 - if ($testing_data !== null) {
6948 - $response_data['testing_data'] = $testing_data;
6949 - }
6950 -
6951 - header('Content-Type: application/json');
6952 - echo json_encode($response_data);
6953 - return true;
6954 3034 }
6955 3035 }
6956 -private function mxchat_generate_response_openai_stream($selected_model, $api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) {
6957 - try {
6958 - $bot_id = $this->get_current_bot_id($session_id);
6959 -
6960 - // Get system prompt instructions using centralized function
6961 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
6962 -
6963 - // Ensure conversation_history is an array
6964 - if (!is_array($conversation_history)) {
6965 - $conversation_history = array();
6966 - }
6967 3036
6968 - // Format conversation history for OpenAI
6969 - $formatted_conversation = array();
6970 3037
6971 - $formatted_conversation[] = array(
6972 - 'role' => 'system',
6973 - 'content' => $system_prompt_instructions . " " . $relevant_content
6974 - );
3038 +private function mxchat_generate_response_deepseek($selected_model, $deepseek_api_key, $conversation_history, $relevant_content) {
3039 + // Ensure conversation_history is an array
3040 + if (!is_array($conversation_history)) {
3041 + $conversation_history = array();
3042 + }
6975 3043
6976 - foreach ($conversation_history as $message) {
6977 - if (is_array($message) && isset($message['role']) && isset($message['content'])) {
6978 - $role = $message['role'];
6979 - if ($role === 'bot' || $role === 'agent') {
6980 - $role = 'assistant';
6981 - }
6982 - if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) {
6983 - $role = 'user';
6984 - }
6985 - $formatted_conversation[] = array(
6986 - 'role' => $role,
6987 - 'content' => $message['content']
6988 - );
6989 - }
6990 - }
3044 + // Get system prompt instructions from options
3045 + $system_prompt_instructions = isset($this->options['system_prompt_instructions']) ? $this->options['system_prompt_instructions'] : '';
6991 3046
6992 - // Check if we can actually stream
6993 - if (headers_sent() || !function_exists('curl_init')) {
6994 - // Fallback to regular response with testing data
6995 - $regular_response = $this->mxchat_generate_response_openai(
6996 - $selected_model,
6997 - $api_key,
6998 - $conversation_history,
6999 - $relevant_content
7000 - );
7001 -
7002 - // Save bot response to transcript
7003 - if (!empty($regular_response) && !empty($session_id)) {
7004 - $this->mxchat_save_chat_message($session_id, 'bot', $regular_response);
7005 - }
7006 -
7007 - $response_data = [
7008 - 'text' => $regular_response,
7009 - 'html' => '',
7010 - 'session_id' => $session_id
7011 - ];
7012 -
7013 - if ($testing_data !== null) {
7014 - $response_data['testing_data'] = $testing_data;
7015 - }
7016 -
7017 - header('Content-Type: application/json');
7018 - echo json_encode($response_data);
7019 - return true;
7020 - }
3047 + // Create a new array for the formatted conversation
3048 + $formatted_conversation = array();
7021 3049
7022 - // Check if this is a GPT-5 model (supports reasoning_effort parameter)
7023 - $is_gpt5_model = (
7024 - strpos($selected_model, 'gpt-5') === 0 ||
7025 - $selected_model === 'gpt-5.2' ||
7026 - $selected_model === 'gpt-5.1-2025-11-13' ||
7027 - $selected_model === 'gpt-5' ||
7028 - $selected_model === 'gpt-5-mini' ||
7029 - $selected_model === 'gpt-5-nano'
7030 - );
3050 + // Add system message first
3051 + $formatted_conversation[] = array(
3052 + 'role' => 'system',
3053 + 'content' => $system_prompt_instructions . " " . $relevant_content
3054 + );
7031 3055
7032 - // Build request body with optimal settings for fast streaming
7033 - $request_body = [
7034 - 'model' => $selected_model,
7035 - 'messages' => $formatted_conversation,
7036 - 'temperature' => 1,
7037 - 'stream' => true
7038 - ];
3056 + // Add the rest of the conversation history
3057 + foreach ($conversation_history as $message) {
3058 + if (is_array($message) && isset($message['role']) && isset($message['content'])) {
3059 + $role = $message['role'];
7039 3060
7040 - // Add reasoning_effort only for GPT-5 models that support it
7041 - // These chat models don't support reasoning_effort parameter
7042 - $no_reasoning_models = array('gpt-5.2', 'gpt-5.1-chat-latest', 'gpt-5.3-chat-latest', 'gpt-5.4-mini', 'gpt-5.4-nano');
7043 - if ($is_gpt5_model && !in_array($selected_model, $no_reasoning_models, true)) {
7044 - // GPT-5.1 uses 'low' instead of 'minimal'
7045 - if ($selected_model === 'gpt-5.1-2025-11-13') {
7046 - $request_body['reasoning_effort'] = 'low';
7047 - } elseif ($selected_model === 'gpt-5.4') {
7048 - $request_body['reasoning_effort'] = 'none';
7049 - } else {
7050 - $request_body['reasoning_effort'] = 'minimal';
3061 + // Convert roles to supported format
3062 + if ($role === 'bot' || $role === 'agent') {
3063 + $role = 'assistant';
7051 3064 }
7052 - }
7053 -
7054 - $body = json_encode($request_body);
7055 -
7056 - // Setup streaming headers now that we know we're actually streaming
7057 - $this->setup_streaming_headers();
7058 -
7059 - // Use cURL for streaming support
7060 - $ch = curl_init();
7061 - curl_setopt($ch, CURLOPT_URL, 'https://api.openai.com/v1/chat/completions');
7062 - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
7063 - curl_setopt($ch, CURLOPT_POST, true);
7064 - curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
7065 - curl_setopt($ch, CURLOPT_HTTPHEADER, array(
7066 - 'Content-Type: application/json',
7067 - 'Authorization: Bearer ' . $api_key
7068 - ));
7069 - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
7070 - curl_setopt($ch, CURLOPT_TIMEOUT, 60);
7071 -
7072 - $full_response = ''; // Accumulate full response for saving
7073 - $stream_started = false;
7074 - $buffer = ''; // CRITICAL: Add persistent buffer for incomplete chunks
7075 -
7076 - // Buffer control for real-time streaming
7077 - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, $testing_data) {
7078 - // Send testing data as the first event if available
7079 - if (!$stream_started && $testing_data !== null) {
7080 - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n";
7081 - flush();
7082 - $stream_started = true;
3065 + if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) {
3066 + $role = 'user';
7083 3067 }
7084 -
7085 - // CRITICAL FIX: Append new data to buffer
7086 - $buffer .= $data;
7087 -
7088 - // Process complete lines only
7089 - $lines = explode("\n", $buffer);
7090 -
7091 - // CRITICAL FIX: Keep the last incomplete line in the buffer
7092 - // The last element might be incomplete, so keep it in buffer
7093 - $buffer = array_pop($lines);
7094 -
7095 - foreach ($lines as $line) {
7096 - // Skip empty lines
7097 - if (trim($line) === '') {
7098 - continue;
7099 - }
7100 -
7101 - // Only process lines that start with "data: "
7102 - if (strpos($line, 'data: ') !== 0) {
7103 - continue;
7104 - }
7105 -
7106 - $json_str = substr($line, 6); // Remove 'data: ' prefix
7107 -
7108 - if (trim($json_str) === '[DONE]') {
7109 - echo "data: [DONE]\n\n";
7110 - flush();
7111 - continue;
7112 - }
7113 -
7114 - // Try to decode JSON
7115 - $json = json_decode(trim($json_str), true);
7116 - if ($json && isset($json['choices'][0]['delta']['content'])) {
7117 - $content = $json['choices'][0]['delta']['content'];
7118 - $full_response .= $content; // Accumulate the full response
7119 -
7120 - // Send as SSE format
7121 - echo "data: " . json_encode(['content' => $content]) . "\n\n";
7122 - flush();
7123 - }
7124 - }
7125 -
7126 - return strlen($data);
7127 - });
7128 -
7129 - $response = curl_exec($ch);
7130 - $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
7131 -
7132 - if (curl_errno($ch) || $http_code !== 200) {
7133 - $curl_error = curl_error($ch);
7134 - curl_close($ch);
7135 3068
7136 - // Fallback to regular response
7137 - $regular_response = $this->mxchat_generate_response_openai(
7138 - $selected_model,
7139 - $api_key,
7140 - $conversation_history,
7141 - $relevant_content
3069 + $formatted_conversation[] = array(
3070 + 'role' => $role,
3071 + 'content' => $message['content']
7142 3072 );
7143 -
7144 - // FIXED: Check if regular response returned an error
7145 - if (is_array($regular_response) && isset($regular_response['error'])) {
7146 - // Send error in SSE format since we're in streaming mode
7147 - echo "data: " . json_encode([
7148 - 'error' => true,
7149 - 'error_message' => $regular_response['error'],
7150 - 'error_code' => $regular_response['error_code'] ?? 'api_error',
7151 - 'text' => $regular_response['error'],
7152 - 'message' => $regular_response['error']
7153 - ]) . "\n\n";
7154 - echo "data: [DONE]\n\n";
7155 - flush();
7156 - return true;
7157 - }
7158 -
7159 - $response_data = [
7160 - 'text' => $regular_response,
7161 - 'html' => '',
7162 - 'session_id' => $session_id
7163 - ];
7164 -
7165 - if ($testing_data !== null) {
7166 - $response_data['testing_data'] = $testing_data;
7167 - }
7168 -
7169 - header('Content-Type: application/json');
7170 - echo json_encode($response_data);
7171 - return true;
7172 3073 }
7173 -
7174 - curl_close($ch);
7175 -
7176 - // Save the complete response to maintain chat persistence
7177 - if (!empty($full_response) && !empty($session_id)) {
7178 - // Prepare RAG context for streaming response
7179 - $rag_context_for_storage = null;
7180 - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']);
7181 - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis);
7182 -
7183 - if ($has_rag_data || $has_action_data) {
7184 - $rag_context_for_storage = [];
7185 -
7186 - if ($has_rag_data) {
7187 - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches'];
7188 - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? [];
7189 - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35;
7190 - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database';
7191 - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0;
7192 - }
7193 -
7194 - if ($has_action_data) {
7195 - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis;
7196 - }
7197 - }
7198 - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage);
7199 - }
7200 -
7201 - return true; // Indicate streaming completed successfully
7202 -
7203 - } catch (Exception $e) {
7204 - // Fallback to regular response
7205 - $regular_response = $this->mxchat_generate_response_openai(
7206 - $selected_model,
7207 - $api_key,
7208 - $conversation_history,
7209 - $relevant_content
7210 - );
7211 -
7212 - // FIXED: Check if regular response returned an error
7213 - if (is_array($regular_response) && isset($regular_response['error'])) {
7214 - // Send error in SSE format since we're in streaming mode
7215 - echo "data: " . json_encode([
7216 - 'error' => true,
7217 - 'error_message' => $regular_response['error'],
7218 - 'error_code' => $regular_response['error_code'] ?? 'api_error',
7219 - 'text' => $regular_response['error'],
7220 - 'message' => $regular_response['error']
7221 - ]) . "\n\n";
7222 - echo "data: [DONE]\n\n";
7223 - flush();
7224 - return true;
7225 - }
7226 -
7227 - $response_data = [
7228 - 'text' => $regular_response,
7229 - 'html' => '',
7230 - 'session_id' => $session_id
7231 - ];
7232 -
7233 - if ($testing_data !== null) {
7234 - $response_data['testing_data'] = $testing_data;
7235 - }
7236 -
7237 - header('Content-Type: application/json');
7238 - echo json_encode($response_data);
7239 - return true;
7240 3074 }
7241 -}
7242 3075
7243 -/**
7244 - * Generate response using OpenAI Responses API with web search tool
7245 - * This uses the newer Responses API which supports web search functionality
7246 - */
7247 -private function mxchat_generate_response_openai_web_search($selected_model, $api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null, $streaming = false) {
7248 - try {
7249 - $bot_id = $this->get_current_bot_id($session_id);
7250 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
3076 + $body = json_encode([
3077 + 'model' => $selected_model,
3078 + 'messages' => $formatted_conversation,
3079 + 'temperature' => 0.8,
3080 + 'stream' => false
3081 + ]);
7251 3082
7252 - if (!is_array($conversation_history)) {
7253 - $conversation_history = array();
7254 - }
3083 + $args = [
3084 + 'body' => $body,
3085 + 'headers' => [
3086 + 'Content-Type' => 'application/json',
3087 + 'Authorization' => 'Bearer ' . $deepseek_api_key,
3088 + ],
3089 + 'timeout' => 60,
3090 + 'redirection' => 5,
3091 + 'blocking' => true,
3092 + 'httpversion' => '1.0',
3093 + 'sslverify' => true,
3094 + ];
7255 3095
7256 - // Build the input for Responses API
7257 - // The Responses API uses a different format - we need to construct the input properly
7258 - $input_parts = [];
3096 + $response = wp_remote_post('https://api.deepseek.com/v1/chat/completions', $args);
7259 3097
7260 - // Add system instructions as context
7261 - $system_context = $system_prompt_instructions . "\n\n" . $relevant_content;
7262 -
7263 - // Build conversation as input items for Responses API
7264 - foreach ($conversation_history as $message) {
7265 - if (is_array($message) && isset($message['role']) && isset($message['content'])) {
7266 - $role = $message['role'];
7267 - if ($role === 'bot' || $role === 'agent') {
7268 - $role = 'assistant';
7269 - }
7270 - if (!in_array($role, ['assistant', 'user'])) {
7271 - $role = 'user';
7272 - }
7273 - $input_parts[] = [
7274 - 'type' => 'message',
7275 - 'role' => $role,
7276 - 'content' => $message['content']
7277 - ];
7278 - }
7279 - }
7280 -
7281 - // Build request body for Responses API
7282 - $request_body = [
7283 - 'model' => $selected_model,
7284 - 'input' => $input_parts,
7285 - 'instructions' => $system_context,
7286 - 'stream' => $streaming
7287 - ];
7288 -
7289 - // Only add web search tool if web search is enabled in settings
7290 - $web_search_enabled = isset($this->options['enable_web_search']) && $this->options['enable_web_search'] === 'on';
7291 - if ($web_search_enabled) {
7292 - $request_body['tools'] = [
7293 - ['type' => 'web_search']
7294 - ];
7295 - }
7296 -
7297 - // Add reasoning effort for supported models
7298 - $is_gpt5_model = strpos($selected_model, 'gpt-5') === 0;
7299 - $no_reasoning_web = array('gpt-5.2', 'gpt-5.3-chat-latest', 'gpt-5.4-mini', 'gpt-5.4-nano');
7300 - if ($is_gpt5_model && !in_array($selected_model, $no_reasoning_web, true)) {
7301 - if ($selected_model === 'gpt-5.1-2025-11-13') {
7302 - $request_body['reasoning'] = ['effort' => 'low'];
7303 - } elseif ($selected_model === 'gpt-5.4') {
7304 - $request_body['reasoning'] = ['effort' => 'low'];
7305 - }
7306 - }
7307 -
7308 - //error_log("MXCHAT WEB SEARCH: Request body: " . json_encode($request_body));
7309 -
7310 - if ($streaming) {
7311 - return $this->mxchat_web_search_streaming_response($request_body, $api_key, $session_id, $testing_data);
7312 - } else {
7313 - return $this->mxchat_web_search_non_streaming_response($request_body, $api_key, $session_id, $testing_data);
7314 - }
7315 -
7316 - } catch (Exception $e) {
7317 - //error_log("MXCHAT WEB SEARCH ERROR: " . $e->getMessage());
7318 - return [
7319 - 'error' => sprintf(esc_html__('Web search error: %s', 'mxchat'), esc_html($e->getMessage())),
7320 - 'error_code' => 'web_search_exception'
7321 - ];
7322 - }
7323 -}
7324 -
7325 -/**
7326 - * Handle non-streaming web search response
7327 - */
7328 -private function mxchat_web_search_non_streaming_response($request_body, $api_key, $session_id, $testing_data) {
7329 - $request_body['stream'] = false;
7330 -
7331 - $response = wp_remote_post('https://api.openai.com/v1/responses', array(
7332 - 'headers' => array(
7333 - 'Authorization' => 'Bearer ' . $api_key,
7334 - 'Content-Type' => 'application/json'
7335 - ),
7336 - 'body' => json_encode($request_body),
7337 - 'timeout' => 90
7338 - ));
7339 -
7340 3098 if (is_wp_error($response)) {
7341 - //error_log("MXCHAT WEB SEARCH ERROR: WP Error: " . $response->get_error_message());
7342 - return [
7343 - 'error' => esc_html__('Failed to connect to OpenAI web search API', 'mxchat'),
7344 - 'error_code' => 'web_search_connection_error'
7345 - ];
3099 + //error_log('DeepSeek API Error: ' . $response->get_error_message());
3100 + return "Sorry, there was an error processing your request.";
7346 3101 }
7347 3102
7348 - $response_code = wp_remote_retrieve_response_code($response);
7349 3103 $response_body = wp_remote_retrieve_body($response);
3104 + $decoded_response = json_decode($response_body, true);
7350 3105
7351 - //error_log("MXCHAT WEB SEARCH: Response code: " . $response_code);
7352 - //error_log("MXCHAT WEB SEARCH: Response body (first 2000): " . substr($response_body, 0, 2000));
7353 -
7354 - if ($response_code !== 200) {
7355 - $error_data = json_decode($response_body, true);
7356 - $error_message = $error_data['error']['message'] ?? 'Unknown API error';
7357 - return [
7358 - 'error' => sprintf(esc_html__('OpenAI API error: %s', 'mxchat'), esc_html($error_message)),
7359 - 'error_code' => 'web_search_api_error'
7360 - ];
3106 + if (isset($decoded_response['choices'][0]['message']['content'])) {
3107 + return trim($decoded_response['choices'][0]['message']['content']);
3108 + } else {
3109 + //error_log('DeepSeek API Response Format Error: ' . print_r($decoded_response, true));
3110 + return "Sorry, I couldn't process that request.";
7361 3111 }
7362 -
7363 - $result = json_decode($response_body, true);
7364 -
7365 - if (json_last_error() !== JSON_ERROR_NONE) {
7366 - return [
7367 - 'error' => esc_html__('Invalid response from OpenAI', 'mxchat'),
7368 - 'error_code' => 'web_search_json_error'
7369 - ];
7370 - }
7371 -
7372 - // Extract the response text and citations from Responses API format
7373 - $output_text = '';
7374 - $citations = [];
7375 -
7376 - if (isset($result['output'])) {
7377 - foreach ($result['output'] as $output_item) {
7378 - if ($output_item['type'] === 'message' && isset($output_item['content'])) {
7379 - foreach ($output_item['content'] as $content_item) {
7380 - if ($content_item['type'] === 'output_text') {
7381 - $output_text .= $content_item['text'];
7382 -
7383 - // Extract citations/annotations
7384 - if (isset($content_item['annotations'])) {
7385 - foreach ($content_item['annotations'] as $annotation) {
7386 - if ($annotation['type'] === 'url_citation') {
7387 - $citations[] = [
7388 - 'url' => $annotation['url'],
7389 - 'title' => $annotation['title'] ?? ''
7390 - ];
7391 - }
7392 - }
7393 - }
7394 - }
7395 - }
7396 - }
7397 - }
7398 - }
7399 -
7400 - // If we have citations, append them to the response
7401 - if (!empty($citations)) {
7402 - $output_text .= "\n\n**Sources:**\n";
7403 - $seen_urls = [];
7404 - foreach ($citations as $citation) {
7405 - if (!in_array($citation['url'], $seen_urls)) {
7406 - $seen_urls[] = $citation['url'];
7407 - $title = !empty($citation['title']) ? $citation['title'] : $citation['url'];
7408 - $output_text .= "- [" . $title . "](" . $citation['url'] . ")\n";
7409 - }
7410 - }
7411 - }
7412 -
7413 - // Transcript save is handled by the main handler (mxchat_handle_chat_request)
7414 - // which includes rag_context for the "sources" link in transcripts.
7415 -
7416 - return $output_text;
7417 3112 }
7418 -
7419 -/**
7420 - * Handle streaming web search response using Responses API
7421 - */
7422 -private function mxchat_web_search_streaming_response($request_body, $api_key, $session_id, $testing_data) {
7423 - $request_body['stream'] = true;
7424 -
7425 - // Check if we can stream
7426 - if (headers_sent() || !function_exists('curl_init')) {
7427 - // Fallback to non-streaming
7428 - return $this->mxchat_web_search_non_streaming_response($request_body, $api_key, $session_id, $testing_data);
3113 +private function mxchat_generate_response_openai($selected_model, $api_key, $conversation_history, $relevant_content) {
3114 + // Ensure conversation_history is an array
3115 + if (!is_array($conversation_history)) {
3116 + $conversation_history = array();
7429 3117 }
7430 3118
7431 - // Setup streaming headers
7432 - $this->setup_streaming_headers();
3119 + // Get system prompt instructions from options
3120 + $system_prompt_instructions = isset($this->options['system_prompt_instructions']) ? $this->options['system_prompt_instructions'] : '';
7433 3121
7434 - $ch = curl_init();
7435 - curl_setopt($ch, CURLOPT_URL, 'https://api.openai.com/v1/responses');
7436 - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
7437 - curl_setopt($ch, CURLOPT_POST, true);
7438 - curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($request_body));
7439 - curl_setopt($ch, CURLOPT_HTTPHEADER, array(
7440 - 'Content-Type: application/json',
7441 - 'Authorization: Bearer ' . $api_key
7442 - ));
7443 - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
7444 - curl_setopt($ch, CURLOPT_TIMEOUT, 120);
3122 + // Create a new array for the formatted conversation
3123 + $formatted_conversation = array();
7445 3124
7446 - $full_response = '';
7447 - $stream_started = false;
7448 - $buffer = '';
7449 - $citations = [];
3125 + // Add system message first
3126 + $formatted_conversation[] = array(
3127 + 'role' => 'system',
3128 + 'content' => $system_prompt_instructions . " " . $relevant_content
3129 + );
7450 3130
7451 - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, &$citations, $testing_data) {
7452 - // Send testing data as first event if available
7453 - if (!$stream_started && $testing_data !== null) {
7454 - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n";
7455 - flush();
7456 - $stream_started = true;
7457 - }
3131 + // Add the rest of the conversation history
3132 + foreach ($conversation_history as $message) {
3133 + if (is_array($message) && isset($message['role']) && isset($message['content'])) {
3134 + $role = $message['role'];
7458 3135
7459 - $buffer .= $data;
7460 - $lines = explode("\n", $buffer);
7461 - $buffer = array_pop($lines);
7462 -
7463 - foreach ($lines as $line) {
7464 - if (trim($line) === '') continue;
7465 - if (strpos($line, 'data: ') !== 0) continue;
7466 -
7467 - $json_str = substr($line, 6);
7468 -
7469 - if (trim($json_str) === '[DONE]') {
7470 - // Append citations if we have any
7471 - if (!empty($citations)) {
7472 - $citation_text = "\n\n**Sources:**\n";
7473 - $seen_urls = [];
7474 - foreach ($citations as $citation) {
7475 - if (!in_array($citation['url'], $seen_urls)) {
7476 - $seen_urls[] = $citation['url'];
7477 - $title = !empty($citation['title']) ? $citation['title'] : $citation['url'];
7478 - $citation_text .= "- [" . $title . "](" . $citation['url'] . ")\n";
7479 - }
7480 - }
7481 - echo "data: " . json_encode(['content' => $citation_text]) . "\n\n";
7482 - $full_response .= $citation_text;
7483 - flush();
7484 - }
7485 - echo "data: [DONE]\n\n";
7486 - flush();
7487 - continue;
3136 + // Convert roles to supported format
3137 + if ($role === 'bot' || $role === 'agent') {
3138 + $role = 'assistant';
7488 3139 }
7489 -
7490 - $json = json_decode(trim($json_str), true);
7491 - if (!$json) continue;
7492 -
7493 - // Handle Responses API streaming events
7494 - // The format is different from Chat Completions
7495 - if (isset($json['type'])) {
7496 - switch ($json['type']) {
7497 - case 'response.output_text.delta':
7498 - // Text content delta
7499 - if (isset($json['delta'])) {
7500 - $content = $json['delta'];
7501 - $full_response .= $content;
7502 - echo "data: " . json_encode(['content' => $content]) . "\n\n";
7503 - flush();
7504 - }
7505 - break;
7506 -
7507 - case 'response.output_item.done':
7508 - // Check for citations in completed items
7509 - if (isset($json['item']['content'])) {
7510 - foreach ($json['item']['content'] as $content_item) {
7511 - if (isset($content_item['annotations'])) {
7512 - foreach ($content_item['annotations'] as $annotation) {
7513 - if ($annotation['type'] === 'url_citation') {
7514 - $citations[] = [
7515 - 'url' => $annotation['url'],
7516 - 'title' => $annotation['title'] ?? ''
7517 - ];
7518 - }
7519 - }
7520 - }
7521 - }
7522 - }
7523 - break;
7524 - }
3140 + if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) {
3141 + $role = 'user';
7525 3142 }
7526 - }
7527 3143
7528 - return strlen($data);
7529 - });
7530 -
7531 - $response = curl_exec($ch);
7532 - $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
7533 -
7534 - if (curl_errno($ch) || $http_code !== 200) {
7535 - $curl_error = curl_error($ch);
7536 - curl_close($ch);
7537 -
7538 - //error_log("MXCHAT WEB SEARCH STREAM ERROR: HTTP $http_code, cURL error: $curl_error");
7539 -
7540 - // Fallback to non-streaming
7541 - $fallback_response = $this->mxchat_web_search_non_streaming_response($request_body, $api_key, $session_id, $testing_data);
7542 -
7543 - if (is_array($fallback_response) && isset($fallback_response['error'])) {
7544 - echo "data: " . json_encode([
7545 - 'error' => true,
7546 - 'error_message' => $fallback_response['error'],
7547 - 'error_code' => $fallback_response['error_code'] ?? 'web_search_error'
7548 - ]) . "\n\n";
7549 - echo "data: [DONE]\n\n";
7550 - flush();
7551 - return true;
3144 + $formatted_conversation[] = array(
3145 + 'role' => $role,
3146 + 'content' => $message['content']
3147 + );
7552 3148 }
7553 -
7554 - $response_data = [
7555 - 'text' => $fallback_response,
7556 - 'html' => '',
7557 - 'session_id' => $session_id
7558 - ];
7559 - if ($testing_data !== null) {
7560 - $response_data['testing_data'] = $testing_data;
7561 - }
7562 - header('Content-Type: application/json');
7563 - echo json_encode($response_data);
7564 - return true;
7565 3149 }
7566 3150
7567 - curl_close($ch);
3151 + $body = json_encode([
3152 + 'model' => $selected_model,
3153 + 'messages' => $formatted_conversation,
3154 + 'temperature' => 0.8,
3155 + 'stream' => false
3156 + ]);
7568 3157
7569 - // Save the complete response with RAG context so the "sources" link
7570 - // appears in transcripts — mirrors the pattern used by Claude/OpenAI streaming.
7571 - if (!empty($full_response) && !empty($session_id)) {
7572 - $rag_context_for_storage = null;
7573 - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']);
7574 - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis);
3158 + $args = [
3159 + 'body' => $body,
3160 + 'headers' => [
3161 + 'Content-Type' => 'application/json',
3162 + 'Authorization' => 'Bearer ' . $api_key,
3163 + ],
3164 + 'timeout' => 60,
3165 + 'redirection' => 5,
3166 + 'blocking' => true,
3167 + 'httpversion' => '1.0',
3168 + 'sslverify' => true,
3169 + ];
7575 3170
7576 - if ($has_rag_data || $has_action_data) {
7577 - $rag_context_for_storage = [];
3171 + $response = wp_remote_post('https://api.openai.com/v1/chat/completions', $args);
7578 3172
7579 - if ($has_rag_data) {
7580 - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches'];
7581 - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? [];
7582 - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35;
7583 - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database';
7584 - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0;
7585 - }
7586 -
7587 - if ($has_action_data) {
7588 - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis;
7589 - }
7590 - }
7591 - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage);
3173 + if (is_wp_error($response)) {
3174 + //error_log('OpenAI API Error: ' . $response->get_error_message());
3175 + return "Sorry, there was an error processing your request.";
7592 3176 }
7593 3177
7594 - return true;
7595 -}
3178 + $response_body = wp_remote_retrieve_body($response);
3179 + $decoded_response = json_decode($response_body, true);
7596 3180
7597 -private function mxchat_generate_response_claude_stream($selected_model, $claude_api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) {
7598 - try {
7599 - // Get bot ID from session or request
7600 - $bot_id = $this->get_current_bot_id($session_id);
7601 -
7602 - // Get system prompt instructions using centralized function
7603 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
7604 - // Ensure conversation_history is an array
7605 - if (!is_array($conversation_history)) {
7606 - $conversation_history = array();
7607 - }
7608 -
7609 - // Clean and validate conversation history
7610 - foreach ($conversation_history as &$message) {
7611 - // Convert bot and agent roles to assistant
7612 - if ($message['role'] === 'bot' || $message['role'] === 'agent') {
7613 - $message['role'] = 'assistant';
7614 - }
7615 -
7616 - // Remove unsupported roles - Claude only supports 'assistant' and 'user'
7617 - if (!in_array($message['role'], ['assistant', 'user'])) {
7618 - $message['role'] = 'user';
7619 - }
7620 -
7621 - // Ensure content field exists
7622 - if (!isset($message['content']) || empty($message['content'])) {
7623 - $message['content'] = '';
7624 - }
7625 -
7626 - // Remove any unsupported fields
7627 - $message = array_intersect_key($message, array_flip(['role', 'content']));
7628 - }
7629 -
7630 - // Add relevant content as the latest user message
7631 - $conversation_history[] = [
7632 - 'role' => 'user',
7633 - 'content' => $relevant_content
7634 - ];
7635 -
7636 - // Prepare the request body with stream: true
7637 - $body = json_encode([
7638 - 'model' => $selected_model,
7639 - 'messages' => $conversation_history,
7640 - 'max_tokens' => 1000,
7641 - 'temperature' => 0.8,
7642 - 'system' => $system_prompt_instructions,
7643 - 'stream' => true
7644 - ]);
7645 -
7646 - // Check if we can actually stream (headers not sent, etc.)
7647 - if (headers_sent() || !function_exists('curl_init')) {
7648 - // Fallback to regular response with testing data
7649 - //error_log("MxChat: Streaming not possible, falling back to regular response");
7650 - $regular_response = $this->mxchat_generate_response_claude(
7651 - $selected_model,
7652 - $claude_api_key,
7653 - array_slice($conversation_history, 0, -1), // Remove the added content
7654 - $relevant_content
7655 - );
7656 -
7657 - // Save bot response to transcript
7658 - if (!empty($regular_response) && !empty($session_id)) {
7659 - $this->mxchat_save_chat_message($session_id, 'bot', $regular_response);
7660 - }
7661 -
7662 - // Return as JSON with testing data
7663 - $response_data = [
7664 - 'text' => $regular_response,
7665 - 'html' => '',
7666 - 'session_id' => $session_id
7667 - ];
7668 -
7669 - if ($testing_data !== null) {
7670 - $response_data['testing_data'] = $testing_data;
7671 - //error_log("MxChat Testing: Added testing data to Claude fallback response");
7672 - }
7673 -
7674 - // Clear any streaming headers and send JSON
7675 - if (headers_sent() === false) {
7676 - header('Content-Type: application/json');
7677 - }
7678 - echo json_encode($response_data);
7679 - return true; // Indicate we handled the response
7680 - }
7681 -
7682 - // Setup streaming headers now that we know we're actually streaming
7683 - $this->setup_streaming_headers();
7684 -
7685 - // Use cURL for streaming support
7686 - $ch = curl_init();
7687 - curl_setopt($ch, CURLOPT_URL, 'https://api.anthropic.com/v1/messages');
7688 - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
7689 - curl_setopt($ch, CURLOPT_POST, true);
7690 - curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
7691 - curl_setopt($ch, CURLOPT_HTTPHEADER, array(
7692 - 'Content-Type: application/json',
7693 - 'x-api-key: ' . $claude_api_key,
7694 - 'anthropic-version: 2023-06-01'
7695 - ));
7696 - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
7697 - curl_setopt($ch, CURLOPT_TIMEOUT, 60);
7698 -
7699 - $full_response = ''; // Accumulate full response for saving
7700 - $stream_started = false;
7701 - $buffer = ''; // CRITICAL: Add persistent buffer for incomplete chunks
7702 -
7703 - // Buffer control for real-time streaming
7704 - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, $testing_data) {
7705 - // Send testing data as the first event if available
7706 - if (!$stream_started && $testing_data !== null) {
7707 - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n";
7708 - flush();
7709 - $stream_started = true;
7710 - //error_log("MxChat Testing: Sent testing data in Claude stream");
7711 - }
7712 -
7713 - // CRITICAL FIX: Append new data to buffer
7714 - $buffer .= $data;
7715 -
7716 - // Process complete lines only
7717 - $lines = explode("\n", $buffer);
7718 -
7719 - // CRITICAL FIX: Keep the last incomplete line in the buffer
7720 - // The last element might be incomplete, so keep it in buffer
7721 - $buffer = array_pop($lines);
7722 -
7723 - foreach ($lines as $line) {
7724 - if (trim($line) === '') {
7725 - continue;
7726 - }
7727 -
7728 - // Claude uses event: and data: format
7729 - if (strpos($line, 'event: ') === 0) {
7730 - // Store the event type for the next data line
7731 - continue;
7732 - }
7733 -
7734 - if (strpos($line, 'data: ') === 0) {
7735 - $json_str = substr($line, 6); // Remove 'data: ' prefix
7736 -
7737 - $json = json_decode(trim($json_str), true);
7738 - if (json_last_error() !== JSON_ERROR_NONE) {
7739 - continue;
7740 - }
7741 -
7742 - // Handle different event types
7743 - if (isset($json['type'])) {
7744 - switch ($json['type']) {
7745 - case 'content_block_delta':
7746 - if (isset($json['delta']['text'])) {
7747 - $content = $json['delta']['text'];
7748 - $full_response .= $content; // Accumulate
7749 - // Send as SSE format compatible with your frontend
7750 - echo "data: " . json_encode(['content' => $content]) . "\n\n";
7751 - flush();
7752 - }
7753 - break;
7754 -
7755 - case 'message_stop':
7756 - echo "data: [DONE]\n\n";
7757 - flush();
7758 - break;
7759 -
7760 - case 'error':
7761 - echo "data: " . json_encode(['error' => $json['error']['message'] ?? 'Unknown error']) . "\n\n";
7762 - flush();
7763 - break;
7764 - }
7765 - }
7766 - }
7767 - }
7768 -
7769 - return strlen($data);
7770 - });
7771 -
7772 - $response = curl_exec($ch);
7773 - $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
7774 -
7775 - if (curl_errno($ch)) {
7776 - curl_close($ch);
7777 - throw new Exception('cURL Error: ' . curl_error($ch));
7778 - }
7779 -
7780 - curl_close($ch);
7781 -
7782 - if ($http_code !== 200) {
7783 - // Fallback to regular response
7784 - //error_log("MxChat: Claude streaming failed with HTTP $http_code, falling back");
7785 - $regular_response = $this->mxchat_generate_response_claude(
7786 - $selected_model,
7787 - $claude_api_key,
7788 - array_slice($conversation_history, 0, -1), // Remove the added content
7789 - $relevant_content
7790 - );
7791 -
7792 - // FIXED: Check if regular response returned an error
7793 - if (is_array($regular_response) && isset($regular_response['error'])) {
7794 - // Send error in SSE format since we're in streaming mode
7795 - echo "data: " . json_encode([
7796 - 'error' => true,
7797 - 'error_message' => $regular_response['error'],
7798 - 'error_code' => $regular_response['error_code'] ?? 'api_error',
7799 - 'text' => $regular_response['error'],
7800 - 'message' => $regular_response['error']
7801 - ]) . "\n\n";
7802 - echo "data: [DONE]\n\n";
7803 - flush();
7804 - return true;
7805 - }
7806 -
7807 - $response_data = [
7808 - 'text' => $regular_response,
7809 - 'html' => '',
7810 - 'session_id' => $session_id
7811 - ];
7812 -
7813 - if ($testing_data !== null) {
7814 - $response_data['testing_data'] = $testing_data;
7815 - //error_log("MxChat Testing: Added testing data to Claude error fallback");
7816 - }
7817 -
7818 - header('Content-Type: application/json');
7819 - echo json_encode($response_data);
7820 - return true;
7821 - }
7822 -
7823 - // Save the complete response to maintain chat persistence
7824 - if (!empty($full_response) && !empty($session_id)) {
7825 - // Prepare RAG context for streaming response
7826 - $rag_context_for_storage = null;
7827 - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']);
7828 - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis);
7829 -
7830 - if ($has_rag_data || $has_action_data) {
7831 - $rag_context_for_storage = [];
7832 -
7833 - if ($has_rag_data) {
7834 - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches'];
7835 - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? [];
7836 - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35;
7837 - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database';
7838 - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0;
7839 - }
7840 -
7841 - if ($has_action_data) {
7842 - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis;
7843 - }
7844 - }
7845 - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage);
7846 - }
7847 -
7848 - return true; // Indicate streaming completed successfully
7849 -
7850 - } catch (Exception $e) {
7851 - //error_log("MxChat Claude streaming exception: " . $e->getMessage());
7852 -
7853 - // Fallback to regular response on exception
7854 - $regular_response = $this->mxchat_generate_response_claude(
7855 - $selected_model,
7856 - $claude_api_key,
7857 - $conversation_history,
7858 - $relevant_content
7859 - );
7860 -
7861 - // FIXED: Check if regular response returned an error
7862 - if (is_array($regular_response) && isset($regular_response['error'])) {
7863 - // Send error in SSE format since we're in streaming mode
7864 - echo "data: " . json_encode([
7865 - 'error' => true,
7866 - 'error_message' => $regular_response['error'],
7867 - 'error_code' => $regular_response['error_code'] ?? 'api_error',
7868 - 'text' => $regular_response['error'],
7869 - 'message' => $regular_response['error']
7870 - ]) . "\n\n";
7871 - echo "data: [DONE]\n\n";
7872 - flush();
7873 - return true;
7874 - }
7875 -
7876 - $response_data = [
7877 - 'text' => $regular_response,
7878 - 'html' => '',
7879 - 'session_id' => $session_id
7880 - ];
7881 -
7882 - if ($testing_data !== null) {
7883 - $response_data['testing_data'] = $testing_data;
7884 - //error_log("MxChat Testing: Added testing data to Claude exception fallback");
7885 - }
7886 -
7887 - header('Content-Type: application/json');
7888 - echo json_encode($response_data);
7889 - return true;
3181 + if (isset($decoded_response['choices'][0]['message']['content'])) {
3182 + return trim($decoded_response['choices'][0]['message']['content']);
3183 + } else {
3184 + //error_log('OpenAI API Response Format Error: ' . print_r($decoded_response, true));
3185 + return "Sorry, I couldn't process that request.";
7890 3186 }
7891 3187 }
7892 -private function mxchat_generate_response_xai_stream($selected_model, $xai_api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) {
7893 - try {
7894 - // Get bot ID from session or request
7895 - $bot_id = $this->get_current_bot_id($session_id);
7896 -
7897 - // Get system prompt instructions using centralized function
7898 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
7899 -
7900 - // Ensure conversation_history is an array
7901 - if (!is_array($conversation_history)) {
7902 - $conversation_history = array();
7903 - }
3188 +private function mxchat_generate_response_xai($selected_model, $xai_api_key, $conversation_history, $relevant_content) {
3189 + // Get system prompt instructions from options
3190 + $system_prompt_instructions = isset($this->options['system_prompt_instructions']) ? $this->options['system_prompt_instructions'] : '';
7904 3191
7905 - // Format conversation history for X.AI (same as OpenAI format)
7906 - $formatted_conversation = array();
3192 + // Add system prompt to relevant content
3193 + $content_with_instructions = $system_prompt_instructions . " " . $relevant_content;
7907 3194
7908 - $formatted_conversation[] = array(
7909 - 'role' => 'system',
7910 - 'content' => $system_prompt_instructions . " " . $relevant_content
7911 - );
3195 + // Prepend system instructions to the conversation history
3196 + array_unshift($conversation_history, [
3197 + 'role' => 'system',
3198 + 'content' => "Here are your instructions: " . $content_with_instructions
3199 + ]);
7912 3200
7913 - foreach ($conversation_history as $message) {
7914 - if (is_array($message) && isset($message['role']) && isset($message['content'])) {
7915 - $role = $message['role'];
7916 - if ($role === 'bot' || $role === 'agent') {
7917 - $role = 'assistant';
7918 - }
7919 - if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) {
7920 - $role = 'user';
7921 - }
7922 - $formatted_conversation[] = array(
7923 - 'role' => $role,
7924 - 'content' => $message['content']
7925 - );
3201 + // Ensure consistency: Replace 'bot' and 'agent' roles with supported values
3202 + foreach ($conversation_history as &$message) {
3203 + if ($message['role'] === 'bot') {
3204 + $message['role'] = 'assistant';
3205 + } elseif ($message['role'] === 'agent') {
3206 + // Tag the message as coming from a live agent
3207 + $message['role'] = 'assistant';
3208 + if (!isset($message['metadata'])) {
3209 + $message['metadata'] = ['source' => 'live_agent'];
7926 3210 }
7927 3211 }
7928 3212
7929 - // Check if we can actually stream
7930 - if (headers_sent() || !function_exists('curl_init')) {
7931 - // Fallback to regular response with testing data
7932 - //error_log("MxChat: X.AI streaming not possible, falling back to regular response");
7933 - $regular_response = $this->mxchat_generate_response_xai(
7934 - $selected_model,
7935 - $xai_api_key,
7936 - $conversation_history,
7937 - $relevant_content
7938 - );
7939 -
7940 - // Save bot response to transcript
7941 - if (!empty($regular_response) && !empty($session_id)) {
7942 - $this->mxchat_save_chat_message($session_id, 'bot', $regular_response);
7943 - }
7944 -
7945 - $response_data = [
7946 - 'text' => $regular_response,
7947 - 'html' => '',
7948 - 'session_id' => $session_id
7949 - ];
7950 -
7951 - if ($testing_data !== null) {
7952 - $response_data['testing_data'] = $testing_data;
7953 - //error_log("MxChat Testing: Added testing data to X.AI fallback response");
7954 - }
7955 -
7956 - header('Content-Type: application/json');
7957 - echo json_encode($response_data);
7958 - return true;
3213 + // Ensure all roles are valid
3214 + if (!in_array($message['role'], ['system', 'assistant', 'user', 'function', 'tool'])) {
3215 + $message['role'] = 'user'; // Default to 'user'
7959 3216 }
7960 -
7961 - // Prepare the request body with stream: true
7962 - $body = json_encode([
7963 - 'model' => $selected_model,
7964 - 'messages' => $formatted_conversation,
7965 - 'temperature' => 0.8,
7966 - 'stream' => true
7967 - ]);
7968 -
7969 - // Setup streaming headers now that we know we're actually streaming
7970 - $this->setup_streaming_headers();
7971 -
7972 - // Use cURL for streaming support
7973 - $ch = curl_init();
7974 - curl_setopt($ch, CURLOPT_URL, 'https://api.x.ai/v1/chat/completions');
7975 - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
7976 - curl_setopt($ch, CURLOPT_POST, true);
7977 - curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
7978 - curl_setopt($ch, CURLOPT_HTTPHEADER, array(
7979 - 'Content-Type: application/json',
7980 - 'Authorization: Bearer ' . $xai_api_key
7981 - ));
7982 - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
7983 - curl_setopt($ch, CURLOPT_TIMEOUT, 60);
7984 -
7985 - $full_response = ''; // Accumulate full response for saving
7986 - $stream_started = false;
7987 - $buffer = ''; // CRITICAL: Add persistent buffer for incomplete chunks
7988 -
7989 - // Buffer control for real-time streaming
7990 - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, $testing_data) {
7991 - // Send testing data as the first event if available
7992 - if (!$stream_started && $testing_data !== null) {
7993 - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n";
7994 - flush();
7995 - $stream_started = true;
7996 - //error_log("MxChat Testing: Sent testing data in X.AI stream");
7997 - }
7998 -
7999 - // CRITICAL FIX: Append new data to buffer
8000 - $buffer .= $data;
8001 -
8002 - // Process complete lines only
8003 - $lines = explode("\n", $buffer);
8004 -
8005 - // CRITICAL FIX: Keep the last incomplete line in the buffer
8006 - // The last element might be incomplete, so keep it in buffer
8007 - $buffer = array_pop($lines);
8008 -
8009 - foreach ($lines as $line) {
8010 - // Skip empty lines
8011 - if (trim($line) === '') {
8012 - continue;
8013 - }
8014 -
8015 - // Only process lines that start with "data: "
8016 - if (strpos($line, 'data: ') !== 0) {
8017 - continue;
8018 - }
8019 -
8020 - $json_str = substr($line, 6); // Remove 'data: ' prefix
8021 -
8022 - if (trim($json_str) === '[DONE]') {
8023 - echo "data: [DONE]\n\n";
8024 - flush();
8025 - continue;
8026 - }
8027 -
8028 - // Try to decode JSON
8029 - $json = json_decode(trim($json_str), true);
8030 - if ($json && isset($json['choices'][0]['delta']['content'])) {
8031 - $content = $json['choices'][0]['delta']['content'];
8032 - $full_response .= $content; // Accumulate
8033 - // Send as SSE format
8034 - echo "data: " . json_encode(['content' => $content]) . "\n\n";
8035 - flush();
8036 - }
8037 - }
8038 -
8039 - return strlen($data);
8040 - });
8041 -
8042 - $response = curl_exec($ch);
8043 - $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
8044 -
8045 - if (curl_errno($ch) || $http_code !== 200) {
8046 - curl_close($ch);
8047 -
8048 - // Fallback to regular response
8049 - //error_log("MxChat: X.AI streaming failed, falling back");
8050 - $regular_response = $this->mxchat_generate_response_xai(
8051 - $selected_model,
8052 - $xai_api_key,
8053 - $conversation_history,
8054 - $relevant_content
8055 - );
8056 -
8057 - $response_data = [
8058 - 'text' => $regular_response,
8059 - 'html' => '',
8060 - 'session_id' => $session_id
8061 - ];
8062 -
8063 - if ($testing_data !== null) {
8064 - $response_data['testing_data'] = $testing_data;
8065 - //error_log("MxChat Testing: Added testing data to X.AI error fallback");
8066 - }
8067 -
8068 - header('Content-Type: application/json');
8069 - echo json_encode($response_data);
8070 - return true;
8071 - }
8072 -
8073 - curl_close($ch);
8074 -
8075 - // Save the complete response to maintain chat persistence
8076 - if (!empty($full_response) && !empty($session_id)) {
8077 - // Prepare RAG context for streaming response
8078 - $rag_context_for_storage = null;
8079 - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']);
8080 - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis);
8081 -
8082 - if ($has_rag_data || $has_action_data) {
8083 - $rag_context_for_storage = [];
8084 -
8085 - if ($has_rag_data) {
8086 - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches'];
8087 - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? [];
8088 - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35;
8089 - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database';
8090 - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0;
8091 - }
8092 -
8093 - if ($has_action_data) {
8094 - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis;
8095 - }
8096 - }
8097 - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage);
8098 - }
8099 -
8100 - return true; // Indicate streaming completed successfully
8101 -
8102 - } catch (Exception $e) {
8103 - //error_log("MxChat X.AI streaming exception: " . $e->getMessage());
8104 -
8105 - // Fallback to regular response
8106 - $regular_response = $this->mxchat_generate_response_xai(
8107 - $selected_model,
8108 - $xai_api_key,
8109 - $conversation_history,
8110 - $relevant_content
8111 - );
8112 -
8113 - $response_data = [
8114 - 'text' => $regular_response,
8115 - 'html' => '',
8116 - 'session_id' => $session_id
8117 - ];
8118 -
8119 - if ($testing_data !== null) {
8120 - $response_data['testing_data'] = $testing_data;
8121 - //error_log("MxChat Testing: Added testing data to X.AI exception fallback");
8122 - }
8123 -
8124 - header('Content-Type: application/json');
8125 - echo json_encode($response_data);
8126 - return true;
8127 3217 }
8128 -}
8129 -private function mxchat_generate_response_deepseek_stream($selected_model, $deepseek_api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) {
8130 - try {
8131 - // Get bot ID from session or request
8132 - $bot_id = $this->get_current_bot_id($session_id);
8133 -
8134 - // Get system prompt instructions using centralized function
8135 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
8136 -
8137 - // Ensure conversation_history is an array
8138 - if (!is_array($conversation_history)) {
8139 - $conversation_history = array();
8140 - }
8141 3218
8142 - // Format conversation history for DeepSeek
8143 - $formatted_conversation = array();
8144 3219
8145 - $formatted_conversation[] = array(
8146 - 'role' => 'system',
8147 - 'content' => $system_prompt_instructions . " " . $relevant_content
8148 - );
3220 + // Build the request body
3221 + $body = json_encode([
3222 + 'model' => $selected_model,
3223 + 'messages' => $conversation_history,
3224 + 'temperature' => 0.8,
3225 + 'stream' => false
3226 + ]);
8149 3227
8150 - foreach ($conversation_history as $message) {
8151 - if (is_array($message) && isset($message['role']) && isset($message['content'])) {
8152 - $role = $message['role'];
8153 - if ($role === 'bot' || $role === 'agent') {
8154 - $role = 'assistant';
8155 - }
8156 - if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) {
8157 - $role = 'user';
8158 - }
8159 - $formatted_conversation[] = array(
8160 - 'role' => $role,
8161 - 'content' => $message['content']
8162 - );
8163 - }
8164 - }
3228 + // Set up the API request
3229 + $args = [
3230 + 'body' => $body,
3231 + 'headers' => [
3232 + 'Content-Type' => 'application/json',
3233 + 'Authorization' => 'Bearer ' . $xai_api_key,
3234 + ],
3235 + 'timeout' => 60,
3236 + 'redirection' => 5,
3237 + 'blocking' => true,
3238 + 'httpversion' => '1.0',
3239 + 'sslverify' => true,
3240 + ];
8165 3241
8166 - // Check if we can actually stream
8167 - if (headers_sent() || !function_exists('curl_init')) {
8168 - // Fallback to regular response with testing data
8169 - //error_log("MxChat: DeepSeek streaming not possible, falling back to regular response");
8170 - $regular_response = $this->mxchat_generate_response_deepseek(
8171 - $selected_model,
8172 - $deepseek_api_key,
8173 - $conversation_history,
8174 - $relevant_content
8175 - );
8176 -
8177 - // Save bot response to transcript
8178 - if (!empty($regular_response) && !empty($session_id)) {
8179 - $this->mxchat_save_chat_message($session_id, 'bot', $regular_response);
8180 - }
8181 -
8182 - $response_data = [
8183 - 'text' => $regular_response,
8184 - 'html' => '',
8185 - 'session_id' => $session_id
8186 - ];
8187 -
8188 - if ($testing_data !== null) {
8189 - $response_data['testing_data'] = $testing_data;
8190 - //error_log("MxChat Testing: Added testing data to DeepSeek fallback response");
8191 - }
8192 -
8193 - header('Content-Type: application/json');
8194 - echo json_encode($response_data);
8195 - return true;
8196 - }
3242 + // Make the API request
3243 + $response = wp_remote_post('https://api.x.ai/v1/chat/completions', $args);
8197 3244
8198 - // Prepare the request body with stream: true
8199 - $body = json_encode([
8200 - 'model' => $selected_model,
8201 - 'messages' => $formatted_conversation,
8202 - 'temperature' => 0.8,
8203 - 'stream' => true
8204 - ]);
8205 -
8206 - // Setup streaming headers now that we know we're actually streaming
8207 - $this->setup_streaming_headers();
8208 -
8209 - // Use cURL for streaming support
8210 - $ch = curl_init();
8211 - curl_setopt($ch, CURLOPT_URL, 'https://api.deepseek.com/v1/chat/completions');
8212 - curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
8213 - curl_setopt($ch, CURLOPT_POST, true);
8214 - curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
8215 - curl_setopt($ch, CURLOPT_HTTPHEADER, array(
8216 - 'Content-Type: application/json',
8217 - 'Authorization: Bearer ' . $deepseek_api_key
8218 - ));
8219 - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
8220 - curl_setopt($ch, CURLOPT_TIMEOUT, 60);
8221 -
8222 - $full_response = ''; // Accumulate full response for saving
8223 - $stream_started = false;
8224 - $buffer = ''; // CRITICAL: Add persistent buffer for incomplete chunks
8225 -
8226 - // Buffer control for real-time streaming
8227 - curl_setopt($ch, CURLOPT_WRITEFUNCTION, function($ch, $data) use (&$full_response, &$stream_started, &$buffer, $testing_data) {
8228 - // Send testing data as the first event if available
8229 - if (!$stream_started && $testing_data !== null) {
8230 - echo "data: " . json_encode(['testing_data' => $testing_data]) . "\n\n";
8231 - flush();
8232 - $stream_started = true;
8233 - //error_log("MxChat Testing: Sent testing data in DeepSeek stream");
8234 - }
8235 -
8236 - // CRITICAL FIX: Append new data to buffer
8237 - $buffer .= $data;
8238 -
8239 - // Process complete lines only
8240 - $lines = explode("\n", $buffer);
8241 -
8242 - // CRITICAL FIX: Keep the last incomplete line in the buffer
8243 - // The last element might be incomplete, so keep it in buffer
8244 - $buffer = array_pop($lines);
8245 -
8246 - foreach ($lines as $line) {
8247 - // Skip empty lines
8248 - if (trim($line) === '') {
8249 - continue;
8250 - }
8251 -
8252 - // Only process lines that start with "data: "
8253 - if (strpos($line, 'data: ') !== 0) {
8254 - continue;
8255 - }
8256 -
8257 - $json_str = substr($line, 6); // Remove 'data: ' prefix
8258 -
8259 - if (trim($json_str) === '[DONE]') {
8260 - echo "data: [DONE]\n\n";
8261 - flush();
8262 - continue;
8263 - }
8264 -
8265 - // Try to decode JSON
8266 - $json = json_decode(trim($json_str), true);
8267 - if ($json && isset($json['choices'][0]['delta']['content'])) {
8268 - $content = $json['choices'][0]['delta']['content'];
8269 - $full_response .= $content; // Accumulate the full response
8270 -
8271 - // Send as SSE format
8272 - echo "data: " . json_encode(['content' => $content]) . "\n\n";
8273 - flush();
8274 - }
8275 - }
8276 -
8277 - return strlen($data);
8278 - });
8279 -
8280 - $response = curl_exec($ch);
8281 - $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
8282 -
8283 - if (curl_errno($ch) || $http_code !== 200) {
8284 - $curl_error = curl_error($ch);
8285 - curl_close($ch);
8286 -
8287 - // Log the specific error for debugging
8288 - //error_log("MxChat: DeepSeek streaming failed - HTTP: $http_code, cURL: $curl_error");
8289 -
8290 - // Fallback to regular response
8291 - $regular_response = $this->mxchat_generate_response_deepseek(
8292 - $selected_model,
8293 - $deepseek_api_key,
8294 - $conversation_history,
8295 - $relevant_content
8296 - );
8297 -
8298 - // Handle error response from regular function
8299 - if (is_array($regular_response) && isset($regular_response['error'])) {
8300 - if ($testing_data !== null) {
8301 - $regular_response['testing_data'] = $testing_data;
8302 - }
8303 - header('Content-Type: application/json');
8304 - echo json_encode($regular_response);
8305 - return true;
8306 - }
8307 -
8308 - $response_data = [
8309 - 'text' => $regular_response,
8310 - 'html' => '',
8311 - 'session_id' => $session_id
8312 - ];
8313 -
8314 - if ($testing_data !== null) {
8315 - $response_data['testing_data'] = $testing_data;
8316 - //error_log("MxChat Testing: Added testing data to DeepSeek error fallback");
8317 - }
8318 -
8319 - header('Content-Type: application/json');
8320 - echo json_encode($response_data);
8321 - return true;
8322 - }
8323 -
8324 - curl_close($ch);
8325 -
8326 - // Save the complete response to maintain chat persistence
8327 - if (!empty($full_response) && !empty($session_id)) {
8328 - // Prepare RAG context for streaming response
8329 - $rag_context_for_storage = null;
8330 - $has_rag_data = $this->last_similarity_analysis !== null && !empty($this->last_similarity_analysis['top_matches']);
8331 - $has_action_data = isset($this->last_action_analysis) && !empty($this->last_action_analysis);
8332 -
8333 - if ($has_rag_data || $has_action_data) {
8334 - $rag_context_for_storage = [];
8335 -
8336 - if ($has_rag_data) {
8337 - $rag_context_for_storage['top_matches'] = $this->last_similarity_analysis['top_matches'];
8338 - $rag_context_for_storage['approved_urls'] = $this->current_valid_urls ?? [];
8339 - $rag_context_for_storage['similarity_threshold'] = $this->last_similarity_analysis['threshold_used'] ?? 0.35;
8340 - $rag_context_for_storage['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'] ?? 'WordPress Database';
8341 - $rag_context_for_storage['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0;
8342 - }
8343 -
8344 - if ($has_action_data) {
8345 - $rag_context_for_storage['action_analysis'] = $this->last_action_analysis;
8346 - }
8347 - }
8348 - $this->mxchat_save_chat_message($session_id, 'bot', $full_response, null, $rag_context_for_storage);
8349 - }
8350 -
8351 - return true; // Indicate streaming completed successfully
8352 -
8353 - } catch (Exception $e) {
8354 - //error_log("MxChat DeepSeek streaming exception: " . $e->getMessage());
8355 -
8356 - // Fallback to regular response
8357 - $regular_response = $this->mxchat_generate_response_deepseek(
8358 - $selected_model,
8359 - $deepseek_api_key,
8360 - $conversation_history,
8361 - $relevant_content
8362 - );
8363 -
8364 - // Handle error response from regular function
8365 - if (is_array($regular_response) && isset($regular_response['error'])) {
8366 - if ($testing_data !== null) {
8367 - $regular_response['testing_data'] = $testing_data;
8368 - }
8369 - header('Content-Type: application/json');
8370 - echo json_encode($regular_response);
8371 - return true;
8372 - }
8373 -
8374 - $response_data = [
8375 - 'text' => $regular_response,
8376 - 'html' => '',
8377 - 'session_id' => $session_id
8378 - ];
8379 -
8380 - if ($testing_data !== null) {
8381 - $response_data['testing_data'] = $testing_data;
8382 - //error_log("MxChat Testing: Added testing data to DeepSeek exception fallback");
8383 - }
8384 -
8385 - header('Content-Type: application/json');
8386 - echo json_encode($response_data);
8387 - return true;
3245 + // Process the response
3246 + if (is_wp_error($response)) {
3247 + return "Sorry, there was an error processing your request.";
8388 3248 }
8389 -}
8390 3249
3250 + $response_body = json_decode(wp_remote_retrieve_body($response), true);
8391 3251
8392 -private function mxchat_generate_response_openrouter($selected_model, $openrouter_api_key, $conversation_history, $relevant_content) {
8393 - try {
8394 - if (!is_array($conversation_history)) {
8395 - $conversation_history = array();
8396 - }
8397 -
8398 - $bot_id = $this->get_current_bot_id('');
8399 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
8400 -
8401 - $formatted_conversation = array();
8402 -
8403 - $formatted_conversation[] = array(
8404 - 'role' => 'system',
8405 - 'content' => $system_prompt_instructions . " " . $relevant_content
8406 - );
8407 -
8408 - foreach ($conversation_history as $message) {
8409 - if (is_array($message) && isset($message['role']) && isset($message['content'])) {
8410 - $role = $message['role'];
8411 -
8412 - if ($role === 'bot' || $role === 'agent') {
8413 - $role = 'assistant';
8414 - }
8415 - if (!in_array($role, ['system', 'assistant', 'user'])) {
8416 - $role = 'user';
8417 - }
8418 -
8419 - $formatted_conversation[] = array(
8420 - 'role' => $role,
8421 - 'content' => $message['content']
8422 - );
8423 - }
8424 - }
8425 -
8426 - $body = json_encode([
8427 - 'model' => $selected_model,
8428 - 'messages' => $formatted_conversation,
8429 - 'temperature' => 1,
8430 - ]);
8431 -
8432 - $args = [
8433 - 'body' => $body,
8434 - 'headers' => [
8435 - 'Content-Type' => 'application/json',
8436 - 'Authorization' => 'Bearer ' . $openrouter_api_key,
8437 - 'HTTP-Referer' => home_url(),
8438 - 'X-Title' => get_bloginfo('name'),
8439 - ],
8440 - 'timeout' => 60,
8441 - 'redirection' => 5,
8442 - 'blocking' => true,
8443 - 'httpversion' => '1.0',
8444 - 'sslverify' => true,
8445 - ];
8446 -
8447 - $response = wp_remote_post('https://openrouter.ai/api/v1/chat/completions', $args);
8448 -
8449 - if (is_wp_error($response)) {
8450 - $error_message = $response->get_error_message();
8451 - return [
8452 - 'error' => esc_html__('Connection error when contacting OpenRouter: ', 'mxchat') . esc_html($error_message),
8453 - 'error_code' => 'openrouter_connection_error',
8454 - 'provider' => 'openrouter'
8455 - ];
8456 - }
8457 -
8458 - $status_code = wp_remote_retrieve_response_code($response);
8459 - if ($status_code !== 200) {
8460 - $response_body = wp_remote_retrieve_body($response);
8461 - $decoded_response = json_decode($response_body, true);
8462 -
8463 - $error_message = isset($decoded_response['error']['message'])
8464 - ? $decoded_response['error']['message']
8465 - : 'HTTP Error ' . $status_code;
8466 -
8467 - return [
8468 - 'error' => esc_html__('OpenRouter API error: ', 'mxchat') . esc_html($error_message),
8469 - 'error_code' => 'openrouter_api_error',
8470 - 'provider' => 'openrouter',
8471 - 'status_code' => $status_code
8472 - ];
8473 - }
8474 -
8475 - $response_body = wp_remote_retrieve_body($response);
8476 - $decoded_response = json_decode($response_body, true);
8477 -
8478 - if (isset($decoded_response['choices'][0]['message']['content'])) {
8479 - return trim($decoded_response['choices'][0]['message']['content']);
8480 - } else {
8481 - return [
8482 - 'error' => esc_html__('Unexpected response format from OpenRouter.', 'mxchat'),
8483 - 'error_code' => 'openrouter_response_format_error',
8484 - 'provider' => 'openrouter'
8485 - ];
8486 - }
8487 - } catch (Exception $e) {
8488 - return [
8489 - 'error' => esc_html__('System error when processing OpenRouter request: ', 'mxchat') . esc_html($e->getMessage()),
8490 - 'error_code' => 'openrouter_exception',
8491 - 'provider' => 'openrouter'
8492 - ];
3252 + if (isset($response_body['choices'][0]['message']['content'])) {
3253 + return trim($response_body['choices'][0]['message']['content']);
3254 + } else {
3255 + return "Sorry, I couldn't process that request.";
8493 3256 }
8494 3257 }
8495 3258 private function mxchat_generate_response_claude($selected_model, $claude_api_key, $conversation_history, $relevant_content) {
8496 -
8497 - // Get bot ID from session or request
8498 - $bot_id = $this->get_current_bot_id($session_id);
8499 -
8500 - // Get system prompt instructions using centralized function
8501 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
8502 -
3259 + // Get system prompt instructions from options
3260 + $system_prompt_instructions = isset($this->options['system_prompt_instructions']) ? $this->options['system_prompt_instructions'] : '';
3261 +
8503 3262 // Clean and validate conversation history
8504 3263 foreach ($conversation_history as &$message) {
8505 3264 // Convert bot and agent roles to assistant
8506 3265 if ($message['role'] === 'bot' || $message['role'] === 'agent') {
@@ -8595,821 +3354,11 @@
8595 3354 // Log unexpected response format
8596 3355 //error_log("Claude API unexpected response format: " . print_r($response_body, true));
8597 3356 return "Sorry, I received an unexpected response format from the API.";
8598 3357 }
8599 -private function mxchat_generate_response_openai($selected_model, $api_key, $conversation_history, $relevant_content) {
8600 - try {
8601 - // Ensure conversation_history is an array
8602 - if (!is_array($conversation_history)) {
8603 - $conversation_history = array();
8604 - }
8605 3358
8606 - // Get bot ID from session or request
8607 - $bot_id = $this->get_current_bot_id('');
8608 -
8609 - // Get system prompt instructions using centralized function
8610 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
8611 -
8612 - // Create a new array for the formatted conversation
8613 - $formatted_conversation = array();
8614 3359
8615 - // Add system message first
8616 - $formatted_conversation[] = array(
8617 - 'role' => 'system',
8618 - 'content' => $system_prompt_instructions . " " . $relevant_content
8619 - );
8620 3360
8621 - // Add the rest of the conversation history
8622 - foreach ($conversation_history as $message) {
8623 - if (is_array($message) && isset($message['role']) && isset($message['content'])) {
8624 - $role = $message['role'];
8625 -
8626 - // Convert roles to supported format
8627 - if ($role === 'bot' || $role === 'agent') {
8628 - $role = 'assistant';
8629 - }
8630 - if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) {
8631 - $role = 'user';
8632 - }
8633 -
8634 - $formatted_conversation[] = array(
8635 - 'role' => $role,
8636 - 'content' => $message['content']
8637 - );
8638 - }
8639 - }
8640 -
8641 - // Check if this is a GPT-5 model (supports reasoning_effort parameter)
8642 - $is_gpt5_model = (
8643 - strpos($selected_model, 'gpt-5') === 0 ||
8644 - $selected_model === 'gpt-5.2' ||
8645 - $selected_model === 'gpt-5.1-2025-11-13' ||
8646 - $selected_model === 'gpt-5' ||
8647 - $selected_model === 'gpt-5-mini' ||
8648 - $selected_model === 'gpt-5-nano'
8649 - );
8650 -
8651 - // Build request body with optimal settings for fast responses
8652 - $request_body = [
8653 - 'model' => $selected_model,
8654 - 'messages' => $formatted_conversation,
8655 - 'temperature' => 1,
8656 - 'stream' => false
8657 - ];
8658 -
8659 - // Add reasoning_effort only for GPT-5 models that support it
8660 - // These chat models don't support reasoning_effort parameter
8661 - $no_reasoning_models = array('gpt-5.2', 'gpt-5.1-chat-latest', 'gpt-5.3-chat-latest', 'gpt-5.4-mini', 'gpt-5.4-nano');
8662 - if ($is_gpt5_model && !in_array($selected_model, $no_reasoning_models, true)) {
8663 - // GPT-5.1 uses 'low' instead of 'minimal'
8664 - if ($selected_model === 'gpt-5.1-2025-11-13') {
8665 - $request_body['reasoning_effort'] = 'low';
8666 - } elseif ($selected_model === 'gpt-5.4') {
8667 - $request_body['reasoning_effort'] = 'none';
8668 - } else {
8669 - $request_body['reasoning_effort'] = 'minimal';
8670 - }
8671 - }
8672 -
8673 - $body = json_encode($request_body);
8674 -
8675 - $args = [
8676 - 'body' => $body,
8677 - 'headers' => [
8678 - 'Content-Type' => 'application/json',
8679 - 'Authorization' => 'Bearer ' . $api_key,
8680 - ],
8681 - 'timeout' => 60,
8682 - 'redirection' => 5,
8683 - 'blocking' => true,
8684 - 'httpversion' => '1.0',
8685 - 'sslverify' => true,
8686 - ];
8687 -
8688 - $response = wp_remote_post('https://api.openai.com/v1/chat/completions', $args);
8689 -
8690 - if (is_wp_error($response)) {
8691 - $error_message = $response->get_error_message();
8692 - return [
8693 - 'error' => esc_html__('Connection error when contacting OpenAI: ', 'mxchat') . esc_html($error_message),
8694 - 'error_code' => 'openai_connection_error',
8695 - 'provider' => 'openai'
8696 - ];
8697 - }
8698 -
8699 - $status_code = wp_remote_retrieve_response_code($response);
8700 - if ($status_code !== 200) {
8701 - $response_body = wp_remote_retrieve_body($response);
8702 - $decoded_response = json_decode($response_body, true);
8703 -
8704 - $error_message = isset($decoded_response['error']['message'])
8705 - ? $decoded_response['error']['message']
8706 - : 'HTTP Error ' . $status_code;
8707 -
8708 - $error_type = isset($decoded_response['error']['type'])
8709 - ? $decoded_response['error']['type']
8710 - : 'unknown';
8711 -
8712 - // Handle specific error types
8713 - switch ($error_type) {
8714 - case 'invalid_request_error':
8715 - if (strpos($error_message, 'API key') !== false) {
8716 - return [
8717 - 'error' => esc_html__('Invalid OpenAI API key. Please check your API key configuration.', 'mxchat'),
8718 - 'error_code' => 'openai_invalid_api_key',
8719 - 'provider' => 'openai'
8720 - ];
8721 - }
8722 - break;
8723 -
8724 - case 'authentication_error':
8725 - return [
8726 - 'error' => esc_html__('Authentication failed with OpenAI. Please check your API key.', 'mxchat'),
8727 - 'error_code' => 'openai_auth_error',
8728 - 'provider' => 'openai'
8729 - ];
8730 -
8731 - case 'rate_limit_exceeded':
8732 - return [
8733 - 'error' => esc_html__('OpenAI rate limit exceeded. Please try again later.', 'mxchat'),
8734 - 'error_code' => 'openai_rate_limit',
8735 - 'provider' => 'openai'
8736 - ];
8737 -
8738 - case 'quota_exceeded':
8739 - return [
8740 - 'error' => esc_html__('OpenAI API quota exceeded. Please check your billing details.', 'mxchat'),
8741 - 'error_code' => 'openai_quota_exceeded',
8742 - 'provider' => 'openai'
8743 - ];
8744 - }
8745 -
8746 - // Generic error fallback
8747 - return [
8748 - 'error' => esc_html__('OpenAI API error: ', 'mxchat') . esc_html($error_message),
8749 - 'error_code' => 'openai_api_error',
8750 - 'provider' => 'openai',
8751 - 'status_code' => $status_code
8752 - ];
8753 - }
8754 -
8755 - $response_body = wp_remote_retrieve_body($response);
8756 - $decoded_response = json_decode($response_body, true);
8757 -
8758 - if (isset($decoded_response['choices'][0]['message']['content'])) {
8759 - return trim($decoded_response['choices'][0]['message']['content']);
8760 - } else {
8761 - return [
8762 - 'error' => esc_html__('Unexpected response format from OpenAI.', 'mxchat'),
8763 - 'error_code' => 'openai_response_format_error',
8764 - 'provider' => 'openai'
8765 - ];
8766 - }
8767 - } catch (Exception $e) {
8768 - return [
8769 - 'error' => esc_html__('System error when processing OpenAI request: ', 'mxchat') . esc_html($e->getMessage()),
8770 - 'error_code' => 'openai_exception',
8771 - 'provider' => 'openai'
8772 - ];
8773 - }
8774 -}
8775 -
8776 -private function mxchat_generate_response_xai($selected_model, $xai_api_key, $conversation_history, $relevant_content) {
8777 - try {
8778 - // Get bot ID from session or request
8779 - $bot_id = $this->get_current_bot_id($session_id);
8780 -
8781 - // Get system prompt instructions using centralized function
8782 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
8783 -
8784 - // Add system prompt to relevant content
8785 - $content_with_instructions = $system_prompt_instructions . " " . $relevant_content;
8786 -
8787 - // Prepend system instructions to the conversation history
8788 - array_unshift($conversation_history, [
8789 - 'role' => 'system',
8790 - 'content' => "Here are your instructions: " . $content_with_instructions
8791 - ]);
8792 -
8793 - // Ensure consistency: Replace 'bot' and 'agent' roles with supported values
8794 - foreach ($conversation_history as &$message) {
8795 - if ($message['role'] === 'bot') {
8796 - $message['role'] = 'assistant';
8797 - } elseif ($message['role'] === 'agent') {
8798 - // Tag the message as coming from a live agent
8799 - $message['role'] = 'assistant';
8800 - if (!isset($message['metadata'])) {
8801 - $message['metadata'] = ['source' => 'live_agent'];
8802 - }
8803 - }
8804 -
8805 - // Ensure all roles are valid
8806 - if (!in_array($message['role'], ['system', 'assistant', 'user', 'function', 'tool'])) {
8807 - $message['role'] = 'user'; // Default to 'user'
8808 - }
8809 - }
8810 -
8811 - // Build the request body
8812 - $body = json_encode([
8813 - 'model' => $selected_model,
8814 - 'messages' => $conversation_history,
8815 - 'temperature' => 0.8,
8816 - 'stream' => false
8817 - ]);
8818 -
8819 - // Set up the API request
8820 - $args = [
8821 - 'body' => $body,
8822 - 'headers' => [
8823 - 'Content-Type' => 'application/json',
8824 - 'Authorization' => 'Bearer ' . $xai_api_key,
8825 - ],
8826 - 'timeout' => 60,
8827 - 'redirection' => 5,
8828 - 'blocking' => true,
8829 - 'httpversion' => '1.0',
8830 - 'sslverify' => true,
8831 - ];
8832 -
8833 - // Make the API request
8834 - $response = wp_remote_post('https://api.x.ai/v1/chat/completions', $args);
8835 -
8836 - // Process the response
8837 - if (is_wp_error($response)) {
8838 - $error_message = $response->get_error_message();
8839 - //error_log('X.AI API Error: ' . $error_message);
8840 - return [
8841 - 'error' => esc_html__('Connection error when contacting X.AI: ', 'mxchat') . esc_html($error_message),
8842 - 'error_code' => 'xai_connection_error',
8843 - 'provider' => 'xai'
8844 - ];
8845 - }
8846 -
8847 - $status_code = wp_remote_retrieve_response_code($response);
8848 - if ($status_code !== 200) {
8849 - $response_body = wp_remote_retrieve_body($response);
8850 - $decoded_response = json_decode($response_body, true);
8851 -
8852 - // Log the full response for debugging
8853 - //error_log('X.AI Error Response: ' . print_r($decoded_response, true));
8854 -
8855 - // Extract error message from X.AI's specific format
8856 - $error_message = '';
8857 -
8858 - // Check for direct error string (as seen in your logs)
8859 - if (isset($decoded_response['error']) && is_string($decoded_response['error'])) {
8860 - $error_message = $decoded_response['error'];
8861 - }
8862 - // Check for nested error object (OpenAI style)
8863 - elseif (isset($decoded_response['error']['message'])) {
8864 - $error_message = $decoded_response['error']['message'];
8865 - }
8866 - // Check for top-level message
8867 - elseif (isset($decoded_response['message'])) {
8868 - $error_message = $decoded_response['message'];
8869 - }
8870 - // Fallback
8871 - else {
8872 - $error_message = 'HTTP Error ' . $status_code;
8873 - }
8874 -
8875 - //error_log('X.AI API HTTP Error: ' . $status_code . ' - ' . $error_message);
8876 -
8877 - // Check for API key errors using string matching
8878 - if (stripos($error_message, 'api key') !== false ||
8879 - stripos($error_message, 'incorrect api key') !== false ||
8880 - stripos($error_message, 'invalid api key') !== false) {
8881 - return [
8882 - 'error' => esc_html__('Invalid X.AI API key. Please check your API key configuration.', 'mxchat'),
8883 - 'error_code' => 'xai_invalid_api_key',
8884 - 'provider' => 'xai'
8885 - ];
8886 - }
8887 -
8888 - // Authentication errors
8889 - if ($status_code === 401 || $status_code === 403 ||
8890 - stripos($error_message, 'auth') !== false) {
8891 - return [
8892 - 'error' => esc_html__('Authentication failed with X.AI. Please check your API key.', 'mxchat'),
8893 - 'error_code' => 'xai_auth_error',
8894 - 'provider' => 'xai'
8895 - ];
8896 - }
8897 -
8898 - // Model errors
8899 - if (stripos($error_message, 'model') !== false) {
8900 - return [
8901 - 'error' => esc_html__('Invalid model specified for X.AI. Please check your model configuration.', 'mxchat'),
8902 - 'error_code' => 'xai_invalid_model',
8903 - 'provider' => 'xai'
8904 - ];
8905 - }
8906 -
8907 - // Rate limit errors
8908 - if ($status_code === 429 ||
8909 - stripos($error_message, 'rate') !== false ||
8910 - stripos($error_message, 'limit') !== false) {
8911 - return [
8912 - 'error' => esc_html__('X.AI rate limit exceeded. Please try again later.', 'mxchat'),
8913 - 'error_code' => 'xai_rate_limit',
8914 - 'provider' => 'xai'
8915 - ];
8916 - }
8917 -
8918 - // Quota errors
8919 - if (stripos($error_message, 'quota') !== false ||
8920 - stripos($error_message, 'billing') !== false) {
8921 - return [
8922 - 'error' => esc_html__('X.AI API quota exceeded. Please check your billing details.', 'mxchat'),
8923 - 'error_code' => 'xai_quota_exceeded',
8924 - 'provider' => 'xai'
8925 - ];
8926 - }
8927 -
8928 - // Server errors
8929 - if ($status_code >= 500) {
8930 - return [
8931 - 'error' => esc_html__('X.AI service is currently unavailable. Please try again later.', 'mxchat'),
8932 - 'error_code' => 'xai_service_unavailable',
8933 - 'provider' => 'xai'
8934 - ];
8935 - }
8936 -
8937 - // Generic error fallback with the actual error message
8938 - return [
8939 - 'error' => esc_html__('X.AI API error: ', 'mxchat') . esc_html($error_message),
8940 - 'error_code' => 'xai_api_error',
8941 - 'provider' => 'xai',
8942 - 'status_code' => $status_code
8943 - ];
8944 - }
8945 -
8946 - $response_body = wp_remote_retrieve_body($response);
8947 - $decoded_response = json_decode($response_body, true);
8948 -
8949 - if (isset($decoded_response['choices'][0]['message']['content'])) {
8950 - return trim($decoded_response['choices'][0]['message']['content']);
8951 - } else {
8952 - //error_log('X.AI API Response Format Error: ' . print_r($decoded_response, true));
8953 - return [
8954 - 'error' => esc_html__('Unexpected response format from X.AI.', 'mxchat'),
8955 - 'error_code' => 'xai_response_format_error',
8956 - 'provider' => 'xai'
8957 - ];
8958 - }
8959 -} catch (Exception $e) {
8960 - //error_log('X.AI Exception: ' . $e->getMessage());
8961 - return [
8962 - 'error' => esc_html__('System error when processing X.AI request: ', 'mxchat') . esc_html($e->getMessage()),
8963 - 'error_code' => 'xai_exception',
8964 - 'provider' => 'xai'
8965 - ];
8966 -}
8967 -
8968 -
8969 -}
8970 -private function mxchat_generate_response_deepseek($selected_model, $deepseek_api_key, $conversation_history, $relevant_content) {
8971 - try {
8972 - // Ensure conversation_history is an array
8973 - if (!is_array($conversation_history)) {
8974 - $conversation_history = array();
8975 - }
8976 -
8977 - // Get bot ID from session or request
8978 - $bot_id = $this->get_current_bot_id($session_id);
8979 -
8980 - // Get system prompt instructions using centralized function
8981 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
8982 -
8983 - // Create a new array for the formatted conversation
8984 - $formatted_conversation = array();
8985 -
8986 - // Add system message first
8987 - $formatted_conversation[] = array(
8988 - 'role' => 'system',
8989 - 'content' => $system_prompt_instructions . " " . $relevant_content
8990 - );
8991 -
8992 - // Add the rest of the conversation history
8993 - foreach ($conversation_history as $message) {
8994 - if (is_array($message) && isset($message['role']) && isset($message['content'])) {
8995 - $role = $message['role'];
8996 -
8997 - // Convert roles to supported format
8998 - if ($role === 'bot' || $role === 'agent') {
8999 - $role = 'assistant';
9000 - }
9001 - if (!in_array($role, ['system', 'assistant', 'user', 'function', 'tool'])) {
9002 - $role = 'user';
9003 - }
9004 -
9005 - $formatted_conversation[] = array(
9006 - 'role' => $role,
9007 - 'content' => $message['content']
9008 - );
9009 - }
9010 - }
9011 -
9012 - $body = json_encode([
9013 - 'model' => $selected_model,
9014 - 'messages' => $formatted_conversation,
9015 - 'temperature' => 0.8,
9016 - 'stream' => false
9017 - ]);
9018 -
9019 - $args = [
9020 - 'body' => $body,
9021 - 'headers' => [
9022 - 'Content-Type' => 'application/json',
9023 - 'Authorization' => 'Bearer ' . $deepseek_api_key,
9024 - ],
9025 - 'timeout' => 60,
9026 - 'redirection' => 5,
9027 - 'blocking' => true,
9028 - 'httpversion' => '1.0',
9029 - 'sslverify' => true,
9030 - ];
9031 -
9032 - $response = wp_remote_post('https://api.deepseek.com/v1/chat/completions', $args);
9033 -
9034 - if (is_wp_error($response)) {
9035 - $error_message = $response->get_error_message();
9036 - //error_log('DeepSeek API Error: ' . $error_message);
9037 - return [
9038 - 'error' => esc_html__('Connection error when contacting DeepSeek: ', 'mxchat') . esc_html($error_message),
9039 - 'error_code' => 'deepseek_connection_error',
9040 - 'provider' => 'deepseek'
9041 - ];
9042 - }
9043 -
9044 - $status_code = wp_remote_retrieve_response_code($response);
9045 - if ($status_code !== 200) {
9046 - $response_body = wp_remote_retrieve_body($response);
9047 - $decoded_response = json_decode($response_body, true);
9048 -
9049 - $error_message = isset($decoded_response['error']['message'])
9050 - ? $decoded_response['error']['message']
9051 - : 'HTTP Error ' . $status_code;
9052 -
9053 - $error_type = isset($decoded_response['error']['type'])
9054 - ? $decoded_response['error']['type']
9055 - : 'unknown';
9056 -
9057 - //error_log('DeepSeek API HTTP Error: ' . $status_code . ' - ' . $error_message);
9058 -
9059 - // Handle specific error types
9060 - switch ($status_code) {
9061 - case 401:
9062 - return [
9063 - 'error' => esc_html__('Authentication failed with DeepSeek. Please check your API key.', 'mxchat'),
9064 - 'error_code' => 'deepseek_auth_error',
9065 - 'provider' => 'deepseek'
9066 - ];
9067 -
9068 - case 400:
9069 - if (strpos($error_message, 'API key') !== false) {
9070 - return [
9071 - 'error' => esc_html__('Invalid DeepSeek API key. Please check your API key configuration.', 'mxchat'),
9072 - 'error_code' => 'deepseek_invalid_api_key',
9073 - 'provider' => 'deepseek'
9074 - ];
9075 - }
9076 - break;
9077 -
9078 - case 429:
9079 - if (strpos($error_message, 'quota') !== false) {
9080 - return [
9081 - 'error' => esc_html__('DeepSeek API quota exceeded. Please check your billing details.', 'mxchat'),
9082 - 'error_code' => 'deepseek_quota_exceeded',
9083 - 'provider' => 'deepseek'
9084 - ];
9085 - } else {
9086 - return [
9087 - 'error' => esc_html__('DeepSeek rate limit exceeded. Please try again later.', 'mxchat'),
9088 - 'error_code' => 'deepseek_rate_limit',
9089 - 'provider' => 'deepseek'
9090 - ];
9091 - }
9092 -
9093 - case 500:
9094 - case 502:
9095 - case 503:
9096 - case 504:
9097 - return [
9098 - 'error' => esc_html__('DeepSeek service is currently unavailable. Please try again later.', 'mxchat'),
9099 - 'error_code' => 'deepseek_service_unavailable',
9100 - 'provider' => 'deepseek'
9101 - ];
9102 - }
9103 -
9104 - // Generic error fallback
9105 - return [
9106 - 'error' => esc_html__('DeepSeek API error: ', 'mxchat') . esc_html($error_message),
9107 - 'error_code' => 'deepseek_api_error',
9108 - 'provider' => 'deepseek',
9109 - 'status_code' => $status_code
9110 - ];
9111 - }
9112 -
9113 - $response_body = wp_remote_retrieve_body($response);
9114 - $decoded_response = json_decode($response_body, true);
9115 -
9116 - if (isset($decoded_response['choices'][0]['message']['content'])) {
9117 - return trim($decoded_response['choices'][0]['message']['content']);
9118 - } else {
9119 - //error_log('DeepSeek API Response Format Error: ' . print_r($decoded_response, true));
9120 - return [
9121 - 'error' => esc_html__('Unexpected response format from DeepSeek.', 'mxchat'),
9122 - 'error_code' => 'deepseek_response_format_error',
9123 - 'provider' => 'deepseek'
9124 - ];
9125 - }
9126 - } catch (Exception $e) {
9127 - //error_log('DeepSeek Exception: ' . $e->getMessage());
9128 - return [
9129 - 'error' => esc_html__('System error when processing DeepSeek request: ', 'mxchat') . esc_html($e->getMessage()),
9130 - 'error_code' => 'deepseek_exception',
9131 - 'provider' => 'deepseek'
9132 - ];
9133 - }
9134 -}
9135 -private function mxchat_generate_response_gemini($selected_model, $gemini_api_key, $conversation_history, $relevant_content) {
9136 - // Get bot ID from session or request
9137 - $bot_id = $this->get_current_bot_id($session_id);
9138 -
9139 - // Get system prompt instructions using centralized function
9140 - $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
9141 -
9142 - // Add system prompt to relevant content
9143 - $content_with_instructions = $system_prompt_instructions . " " . $relevant_content;
9144 -
9145 - // Format messages for Gemini API
9146 - $formatted_messages = [];
9147 -
9148 - // Add system message as the first user message with role prefix
9149 - // Note: Gemini doesn't have a dedicated system role, so we use a prefixed user message
9150 - $formatted_messages[] = [
9151 - 'role' => 'user',
9152 - 'parts' => [
9153 - ['text' => "[System Instructions] " . $content_with_instructions]
9154 - ]
9155 - ];
9156 -
9157 - // Add model response to acknowledge system instructions
9158 - $formatted_messages[] = [
9159 - 'role' => 'model',
9160 - 'parts' => [
9161 - ['text' => "I understand and will follow these instructions."]
9162 - ]
9163 - ];
9164 -
9165 - // Process the rest of the conversation history
9166 - $current_role = null;
9167 - $current_parts = [];
9168 -
9169 - foreach ($conversation_history as $message) {
9170 - // Skip the first system message as we already handled it
9171 - if ($message['role'] === 'system') {
9172 - continue;
9173 - }
9174 -
9175 - // Map roles to Gemini format
9176 - $gemini_role = '';
9177 - if ($message['role'] === 'user') {
9178 - $gemini_role = 'user';
9179 - } else if (in_array($message['role'], ['assistant', 'bot', 'agent'])) {
9180 - $gemini_role = 'model';
9181 - } else {
9182 - // Skip unsupported roles
9183 - continue;
9184 - }
9185 -
9186 - // If we have a new role, add the previous message
9187 - if ($current_role !== null && $current_role !== $gemini_role && !empty($current_parts)) {
9188 - $formatted_messages[] = [
9189 - 'role' => $current_role,
9190 - 'parts' => $current_parts
9191 - ];
9192 - $current_parts = [];
9193 - }
9194 -
9195 - // Set current role and add text to parts
9196 - $current_role = $gemini_role;
9197 - $current_parts[] = ['text' => $message['content']];
9198 - }
9199 -
9200 - // Add the last message if there's content
9201 - if ($current_role !== null && !empty($current_parts)) {
9202 - $formatted_messages[] = [
9203 - 'role' => $current_role,
9204 - 'parts' => $current_parts
9205 - ];
9206 - }
9207 -
9208 - // Build the request body
9209 - $body = json_encode([
9210 - 'contents' => $formatted_messages,
9211 - 'generationConfig' => [
9212 - 'temperature' => 0.7,
9213 - 'topP' => 0.95,
9214 - 'topK' => 40,
9215 - 'maxOutputTokens' => 8192,
9216 - ],
9217 - 'safetySettings' => [
9218 - [
9219 - 'category' => 'HARM_CATEGORY_HARASSMENT',
9220 - 'threshold' => 'BLOCK_MEDIUM_AND_ABOVE'
9221 - ],
9222 - [
9223 - 'category' => 'HARM_CATEGORY_HATE_SPEECH',
9224 - 'threshold' => 'BLOCK_MEDIUM_AND_ABOVE'
9225 - ],
9226 - [
9227 - 'category' => 'HARM_CATEGORY_SEXUALLY_EXPLICIT',
9228 - 'threshold' => 'BLOCK_MEDIUM_AND_ABOVE'
9229 - ],
9230 - [
9231 - 'category' => 'HARM_CATEGORY_DANGEROUS_CONTENT',
9232 - 'threshold' => 'BLOCK_MEDIUM_AND_ABOVE'
9233 - ]
9234 - ]
9235 - ]);
9236 -
9237 - // Prepare the API endpoint
9238 - // Use v1beta for preview models (Gemini 3, experimental), v1 for stable models
9239 - $api_version = (strpos($selected_model, 'preview') !== false || strpos($selected_model, 'exp') !== false) ? 'v1beta' : 'v1';
9240 - $api_endpoint = 'https://generativelanguage.googleapis.com/' . $api_version . '/models/' . $selected_model . ':generateContent?key=' . $gemini_api_key;
9241 -
9242 - // Set up the API request
9243 - $args = [
9244 - 'body' => $body,
9245 - 'headers' => [
9246 - 'Content-Type' => 'application/json',
9247 - ],
9248 - 'timeout' => 60,
9249 - 'redirection' => 5,
9250 - 'blocking' => true,
9251 - 'httpversion' => '1.0',
9252 - 'sslverify' => true,
9253 - ];
9254 -
9255 - // Make the API request
9256 - $response = wp_remote_post($api_endpoint, $args);
9257 -
9258 - // Process the response
9259 - if (is_wp_error($response)) {
9260 - return "Sorry, there was an error processing your request: " . $response->get_error_message();
9261 - }
9262 -
9263 - $response_body = json_decode(wp_remote_retrieve_body($response), true);
9264 -
9265 - // Handle potential errors in the response
9266 - if (isset($response_body['error'])) {
9267 - //error_log('Gemini API Error: ' . json_encode($response_body['error']));
9268 - return "Sorry, there was an error with the Gemini API: " .
9269 - (isset($response_body['error']['message']) ? $response_body['error']['message'] : 'Unknown error');
9270 - }
9271 -
9272 - // Extract the response text
9273 - if (isset($response_body['candidates'][0]['content']['parts'][0]['text'])) {
9274 - return trim($response_body['candidates'][0]['content']['parts'][0]['text']);
9275 - } else {
9276 - //error_log('Unexpected Gemini API response format: ' . json_encode($response_body));
9277 - return "Sorry, I couldn't process that request. The response format was unexpected.";
9278 - }
9279 -}
9280 -
9281 -
9282 -public function test_streaming_request() {
9283 - $options = get_option('mxchat_options', []);
9284 - $model = $options['model'] ?? 'gpt-5.1-chat-latest';
9285 -
9286 - // Detect provider from model prefix
9287 - $provider = strtolower(explode('-', $model)[0]);
9288 -
9289 - $sample_prompt = 'Hello! Can you stream this response back to me?';
9290 - $messages = [['role' => 'user', 'content' => $sample_prompt]];
9291 - $headers = [];
9292 - $body = [];
9293 - $url = '';
9294 - $api_key = '';
9295 -
9296 - switch ($provider) {
9297 - case 'gpt':
9298 - case 'o1':
9299 - $api_key = $options['api_key'] ?? '';
9300 - if (empty($api_key)) return '❌ Missing API key for OpenAI';
9301 - $url = 'https://api.openai.com/v1/chat/completions';
9302 - $headers = [
9303 - 'Content-Type: application/json',
9304 - 'Authorization: Bearer ' . $api_key
9305 - ];
9306 - $body = [
9307 - 'model' => $model,
9308 - 'messages' => $messages,
9309 - 'stream' => true
9310 - ];
9311 - break;
9312 -
9313 - case 'claude':
9314 - $api_key = $options['claude_api_key'] ?? '';
9315 - if (empty($api_key)) return '❌ Missing API key for Claude';
9316 - $url = 'https://api.anthropic.com/v1/messages';
9317 - $headers = [
9318 - 'Content-Type: application/json',
9319 - 'x-api-key: ' . $api_key,
9320 - 'anthropic-version: 2023-06-01'
9321 - ];
9322 - $body = [
9323 - 'model' => $model,
9324 - 'messages' => $messages,
9325 - 'max_tokens' => 100,
9326 - 'stream' => true
9327 - ];
9328 - break;
9329 -
9330 - case 'grok':
9331 - $api_key = $options['xai_api_key'] ?? '';
9332 - if (empty($api_key)) return '❌ Missing API key for X.AI';
9333 - $url = 'https://api.x.ai/v1/chat/completions';
9334 - $headers = [
9335 - 'Content-Type: application/json',
9336 - 'Authorization: Bearer ' . $api_key
9337 - ];
9338 - $body = [
9339 - 'model' => $model,
9340 - 'messages' => $messages,
9341 - 'stream' => true
9342 - ];
9343 - break;
9344 -
9345 - case 'deepseek':
9346 - if (empty($deepseek_api_key)) {
9347 - $error_response = [
9348 - 'error' => esc_html__('DeepSeek API key is not configured', 'mxchat'),
9349 - 'error_code' => 'missing_deepseek_api_key'
9350 - ];
9351 - if ($testing_data !== null) {
9352 - $error_response['testing_data'] = $testing_data;
9353 - }
9354 - return $error_response;
9355 - }
9356 - if ($streaming) {
9357 - return $this->mxchat_generate_response_deepseek_stream(
9358 - $selected_model,
9359 - $deepseek_api_key,
9360 - $conversation_history,
9361 - $relevant_content,
9362 - $session_id,
9363 - $testing_data // Pass testing data
9364 - );
9365 - } else {
9366 - $response = $this->mxchat_generate_response_deepseek(
9367 - $selected_model,
9368 - $deepseek_api_key,
9369 - $conversation_history,
9370 - $relevant_content
9371 - );
9372 - }
9373 - break;
9374 -
9375 - case 'gemini':
9376 - $api_key = $options['gemini_api_key'] ?? '';
9377 - if (empty($api_key)) return '❌ Missing API key for Gemini';
9378 - $url = 'https://generativelanguage.googleapis.com/v1beta/models/' . $model . ':streamGenerateContent?key=' . $api_key;
9379 - $headers = ['Content-Type: application/json'];
9380 - $body = [
9381 - 'contents' => [['role' => 'user', 'parts' => [['text' => $sample_prompt]]]],
9382 - 'generationConfig' => ['temperature' => 0.7]
9383 - ];
9384 - break;
9385 -
9386 - default:
9387 - return '❌ Unsupported provider: ' . $provider;
9388 - }
9389 -
9390 - // Do the actual streaming test
9391 - $ch = curl_init($url);
9392 - curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($body));
9393 - curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
9394 - curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
9395 - curl_setopt($ch, CURLOPT_TIMEOUT, 15);
9396 - curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
9397 -
9398 - $response = curl_exec($ch);
9399 - $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
9400 - $error = curl_error($ch);
9401 - curl_close($ch);
9402 -
9403 - if ($error) return "❌ cURL error: $error";
9404 - if ($http_code !== 200) {
9405 - $error_message = json_decode($response, true)['error']['message'] ?? 'Unknown';
9406 - return "❌ HTTP $http_code: $error_message";
9407 - }
9408 -
9409 - return true;
9410 -}
9411 -
9412 3361 public function mxchat_dismiss_pre_chat_message() {
9413 3362 // Get and sanitize the user identifier
9414 3363 $user_id = $this->mxchat_get_user_identifier();
9415 3364 $user_id = sanitize_key($user_id);
@@ -9463,58 +3412,38 @@
9463 3412
9464 3413 return $dotProduct / ($normA * $normB);
9465 3414 }
9466 3415
3416 +public function mxchat_enqueue_scripts_styles() {
3417 + // Define version numbers for the styles and scripts
3418 + $chat_style_version = '2.0.7'; // Replace with your actual version
3419 + $chat_script_version = '2.0.7'; // Replace with your actual version
9467 3420
9468 -public function mxchat_enqueue_scripts_styles() {
9469 - // Fetch options from the database first to check loading strategy
9470 - $this->options = get_option('mxchat_options');
9471 - $loading_strategy = isset($this->options['script_loading_strategy']) ? $this->options['script_loading_strategy'] : 'default';
3421 + // Enqueue the script
3422 + wp_enqueue_script(
3423 + 'mxchat-chat-js',
3424 + plugin_dir_url(__FILE__) . '../js/chat-script.js',
3425 + array('jquery'),
3426 + $chat_script_version,
3427 + true
3428 + );
9472 3429
9473 - // Always enqueue CSS immediately
3430 + // Enqueue the CSS
9474 3431 wp_enqueue_style(
9475 3432 'mxchat-chat-css',
9476 3433 plugin_dir_url(__FILE__) . '../css/chat-style.css',
9477 3434 array(),
9478 - MXCHAT_VERSION
3435 + $chat_style_version
9479 3436 );
9480 3437
9481 - // Handle script loading based on strategy
9482 - if ($loading_strategy === 'default' || $loading_strategy === 'defer') {
9483 - // Enqueue the script normally
9484 - wp_enqueue_script(
9485 - 'mxchat-chat-js',
9486 - plugin_dir_url(__FILE__) . '../js/chat-script.js',
9487 - array('jquery'),
9488 - MXCHAT_VERSION,
9489 - true
9490 - );
9491 -
9492 - // Add defer attribute if strategy is 'defer'
9493 - if ($loading_strategy === 'defer') {
9494 - wp_script_add_data('mxchat-chat-js', 'strategy', 'defer');
9495 - }
9496 - } else {
9497 - // For delay or interaction-based loading, we'll use a custom loader
9498 - // Don't enqueue the main script - we'll load it dynamically
9499 - add_action('wp_footer', array($this, 'mxchat_output_delayed_script_loader'), 99);
9500 - }
9501 -
3438 + // Fetch options from the database
3439 + $this->options = get_option('mxchat_options');
9502 3440 $prompts_options = get_option('mxchat_prompts_options', array());
9503 3441
9504 - // Check if AI theme is active - if so, skip inline colors in JavaScript
9505 - $theme_options = get_option('mxchat_theme_options', array());
9506 - $ai_theme_active = !empty($theme_options['active_ai_theme_css']);
9507 - $has_bot_theme_assignments = !empty($theme_options['bot_theme_assignments']);
9508 - $skip_inline_colors = $ai_theme_active || $has_bot_theme_assignments;
9509 -
9510 3442 // Prepare settings for JavaScript
9511 3443 $style_settings = array(
9512 3444 'ajax_url' => admin_url('admin-ajax.php'),
9513 3445 'nonce' => wp_create_nonce('mxchat_chat_nonce'),
9514 - 'model' => isset($this->options['model']) ? $this->options['model'] : 'gpt-5.1-chat-latest',
9515 - 'enable_streaming_toggle' => isset($this->options['enable_streaming_toggle']) ? $this->options['enable_streaming_toggle'] : 'on',
9516 - 'contextual_awareness_toggle' => isset($this->options['contextual_awareness_toggle']) ? $this->options['contextual_awareness_toggle'] : 'off',
9517 3446 'link_target_toggle' => $this->options['link_target_toggle'] ?? 'off',
9518 3447 'rate_limit_message' => $this->options['rate_limit_message'] ?? 'Rate limit exceeded. Please try again later.',
9519 3448 'complianz_toggle' => isset($this->options['complianz_toggle']) && $this->options['complianz_toggle'] === 'on',
9520 3449 'user_message_bg_color' => $this->options['user_message_bg_color'] ?? '#fff',
@@ -9528,9 +3457,10 @@
9528 3457 'chatbot_bg_color' => $this->options['chatbot_bg_color'] ?? '#fff',
9529 3458 'icon_color' => $this->options['icon_color'] ?? '#fff',
9530 3459 'chat_input_font_color' => $this->options['chat_input_font_color'] ?? '#212121',
9531 3460 'chat_persistence_toggle' => $this->options['chat_persistence_toggle'] ?? 'off',
9532 - 'appendWidgetToBody' => $this->options['append_to_body'] ?? 'off',
3461 + 'appendWidgetToBody' => $this->options['append_to_body'] ?? 'off', // Example for consistency
3462 +
9533 3463 'live_agent_message_bg_color' => $this->options['live_agent_message_bg_color'] ?? '#ffffff',
9534 3464 'live_agent_message_font_color' => $this->options['live_agent_message_font_color'] ?? '#333333',
9535 3465 'chat_toolbar_toggle' => $this->options['chat_toolbar_toggle'] ?? 'off',
9536 3466 'mode_indicator_bg_color' => $this->options['mode_indicator_bg_color'] ?? '#767676',
@@ -9535,1264 +3465,76 @@
9535 3465 'chat_toolbar_toggle' => $this->options['chat_toolbar_toggle'] ?? 'off',
9536 3466 'mode_indicator_bg_color' => $this->options['mode_indicator_bg_color'] ?? '#767676',
9537 3467 'mode_indicator_font_color' => $this->options['mode_indicator_font_color'] ?? '#ffffff',
9538 3468 'toolbar_icon_color' => $this->options['toolbar_icon_color'] ?? '#212121',
9539 - 'use_pinecone' => $prompts_options['mxchat_use_pinecone'] ?? '0',
9540 - 'email_collection_enabled' => $this->options['enable_email_block'] ?? 'off', // FIXED
9541 - 'initial_email_state' => null, // Also fixed this undefined variable
9542 - 'skip_email_check' => true,
9543 - 'pinecone_enabled' => isset($prompts_options['mxchat_use_pinecone']) && $prompts_options['mxchat_use_pinecone'] === '1',
9544 - 'skip_inline_colors' => $skip_inline_colors,
9545 - 'bot_theme_assignments' => $theme_options['bot_theme_assignments'] ?? array()
9546 - );
9547 3469
9548 - // For normal/defer loading, use wp_localize_script
9549 - // For delayed loading, we store settings in a transient to be output inline
9550 - if ($loading_strategy === 'default' || $loading_strategy === 'defer') {
9551 - wp_localize_script('mxchat-chat-js', 'mxchatChat', $style_settings);
9552 - } else {
9553 - // Store settings for the delayed loader to use
9554 - set_transient('mxchat_delayed_settings_' . get_current_user_id(), $style_settings, 60);
9555 - }
9556 -}
9557 -
9558 -/**
9559 - * Output the delayed script loader for performance optimization
9560 - */
9561 -public function mxchat_output_delayed_script_loader() {
9562 - $this->options = get_option('mxchat_options');
9563 - $loading_strategy = isset($this->options['script_loading_strategy']) ? $this->options['script_loading_strategy'] : 'default';
9564 - $script_url = plugin_dir_url(__FILE__) . '../js/chat-script.js?ver=' . MXCHAT_VERSION;
9565 -
9566 - // Get the stored settings
9567 - $prompts_options = get_option('mxchat_prompts_options', array());
9568 - $theme_options = get_option('mxchat_theme_options', array());
9569 - $ai_theme_active = !empty($theme_options['active_ai_theme_css']);
9570 - $has_bot_theme_assignments = !empty($theme_options['bot_theme_assignments']);
9571 - $skip_inline_colors = $ai_theme_active || $has_bot_theme_assignments;
9572 -
9573 - $style_settings = array(
9574 - 'ajax_url' => admin_url('admin-ajax.php'),
9575 - 'nonce' => wp_create_nonce('mxchat_chat_nonce'),
9576 - 'model' => isset($this->options['model']) ? $this->options['model'] : 'gpt-5.1-chat-latest',
9577 - 'enable_streaming_toggle' => isset($this->options['enable_streaming_toggle']) ? $this->options['enable_streaming_toggle'] : 'on',
9578 - 'contextual_awareness_toggle' => isset($this->options['contextual_awareness_toggle']) ? $this->options['contextual_awareness_toggle'] : 'off',
9579 - 'link_target_toggle' => $this->options['link_target_toggle'] ?? 'off',
9580 - 'rate_limit_message' => $this->options['rate_limit_message'] ?? 'Rate limit exceeded. Please try again later.',
9581 - 'complianz_toggle' => isset($this->options['complianz_toggle']) && $this->options['complianz_toggle'] === 'on',
9582 - 'user_message_bg_color' => $this->options['user_message_bg_color'] ?? '#fff',
9583 - 'user_message_font_color' => $this->options['user_message_font_color'] ?? '#212121',
9584 - 'bot_message_bg_color' => $this->options['bot_message_bg_color'] ?? '#212121',
9585 - 'bot_message_font_color' => $this->options['bot_message_font_color'] ?? '#fff',
9586 - 'top_bar_bg_color' => $this->options['top_bar_bg_color'] ?? '#212121',
9587 - 'send_button_font_color' => $this->options['send_button_font_color'] ?? '#212121',
9588 - 'close_button_color' => $this->options['close_button_color'] ?? '#fff',
9589 - 'chatbot_background_color' => $this->options['chatbot_background_color'] ?? '#212121',
9590 - 'chatbot_bg_color' => $this->options['chatbot_bg_color'] ?? '#fff',
9591 - 'icon_color' => $this->options['icon_color'] ?? '#fff',
9592 - 'chat_input_font_color' => $this->options['chat_input_font_color'] ?? '#212121',
9593 - 'chat_persistence_toggle' => $this->options['chat_persistence_toggle'] ?? 'off',
9594 - 'appendWidgetToBody' => $this->options['append_to_body'] ?? 'off',
9595 - 'live_agent_message_bg_color' => $this->options['live_agent_message_bg_color'] ?? '#ffffff',
9596 - 'live_agent_message_font_color' => $this->options['live_agent_message_font_color'] ?? '#333333',
9597 - 'chat_toolbar_toggle' => $this->options['chat_toolbar_toggle'] ?? 'off',
9598 - 'mode_indicator_bg_color' => $this->options['mode_indicator_bg_color'] ?? '#767676',
9599 - 'mode_indicator_font_color' => $this->options['mode_indicator_font_color'] ?? '#ffffff',
9600 - 'toolbar_icon_color' => $this->options['toolbar_icon_color'] ?? '#212121',
9601 3470 'use_pinecone' => $prompts_options['mxchat_use_pinecone'] ?? '0',
9602 - 'email_collection_enabled' => $this->options['enable_email_block'] ?? 'off',
9603 - 'initial_email_state' => null,
9604 - 'skip_email_check' => true,
9605 - 'pinecone_enabled' => isset($prompts_options['mxchat_use_pinecone']) && $prompts_options['mxchat_use_pinecone'] === '1',
9606 - 'skip_inline_colors' => $skip_inline_colors,
9607 - 'bot_theme_assignments' => $theme_options['bot_theme_assignments'] ?? array()
3471 + 'pinecone_enabled' => isset($prompts_options['mxchat_use_pinecone']) && $prompts_options['mxchat_use_pinecone'] === '1'
9608 3472 );
9609 3473
9610 - // Determine delay time based on strategy
9611 - $delay_ms = 0;
9612 - switch ($loading_strategy) {
9613 - case 'delay_1s':
9614 - $delay_ms = 1000;
9615 - break;
9616 - case 'delay_3s':
9617 - $delay_ms = 3000;
9618 - break;
9619 - case 'delay_5s':
9620 - $delay_ms = 5000;
9621 - break;
9622 - }
9623 -
9624 - ?>
9625 - <script type="text/javascript">
9626 - (function() {
9627 - var mxchatLoaded = false;
9628 - var mxchatChat = <?php echo wp_json_encode($style_settings); ?>;
9629 - window.mxchatChat = mxchatChat;
9630 -
9631 - function loadMxChatScript() {
9632 - if (mxchatLoaded) return;
9633 - mxchatLoaded = true;
9634 -
9635 - function appendChatScript() {
9636 - var script = document.createElement('script');
9637 - script.src = <?php echo wp_json_encode($script_url); ?>;
9638 - script.type = 'text/javascript';
9639 - document.body.appendChild(script);
9640 - }
9641 -
9642 - if (typeof jQuery !== 'undefined') {
9643 - appendChatScript();
9644 - } else {
9645 - var jq = document.createElement('script');
9646 - jq.src = <?php echo wp_json_encode(includes_url('js/jquery/jquery.min.js')); ?>;
9647 - jq.onload = appendChatScript;
9648 - document.body.appendChild(jq);
9649 - }
9650 - }
9651 -
9652 - <?php if ($loading_strategy === 'on_interaction'): ?>
9653 - // Load on user interaction
9654 - var events = ['scroll', 'mousemove', 'touchstart', 'keydown', 'click'];
9655 - events.forEach(function(evt) {
9656 - window.addEventListener(evt, loadMxChatScript, {once: true, passive: true});
9657 - });
9658 - // Fallback: load after 8 seconds if no interaction
9659 - setTimeout(loadMxChatScript, 8000);
9660 - <?php else: ?>
9661 - // Load after specified delay
9662 - setTimeout(loadMxChatScript, <?php echo intval($delay_ms); ?>);
9663 - <?php endif; ?>
9664 - })();
9665 - </script>
9666 - <?php
3474 + // Pass the settings to the script
3475 + wp_localize_script('mxchat-chat-js', 'mxchatChat', $style_settings);
9667 3476 }
9668 3477
9669 -/**
9670 - * Setup the cron jobs for rate limits with guard against multiple calls
9671 - */
9672 -public function setup_rate_limit_cron_jobs() {
9673 - // Add a guard to prevent multiple rapid calls
9674 - $last_setup = get_transient('mxchat_cron_setup_guard');
9675 - if ($last_setup && (time() - $last_setup) < 60) {
9676 - // Don't run again if we ran less than 60 seconds ago
9677 - return;
9678 - }
9679 -
9680 - // Set the guard
9681 - set_transient('mxchat_cron_setup_guard', time(), 300); // 5 minutes
9682 -
9683 - try {
9684 - // First, check if WordPress cron is disabled
9685 - if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
9686 - //error_log('MxChat: WordPress cron is disabled (DISABLE_WP_CRON = true), using fallback system');
9687 - $this->setup_fallback_rate_limit_system();
9688 - return;
9689 - }
9690 -
9691 - // Check if cron is already scheduled - if so, don't mess with it
9692 - if (wp_next_scheduled('mxchat_reset_rate_limits')) {
9693 - //error_log('MxChat: Rate limit cron already scheduled, skipping setup');
9694 - return;
9695 - }
9696 -
9697 - // Clear any orphaned hooks (but don't loop indefinitely)
9698 - $hooks_to_clear = [
9699 - 'mxchat_reset_rate_limits',
9700 - 'mxchat_reset_hourly_rate_limits',
9701 - 'mxchat_reset_daily_rate_limits',
9702 - 'mxchat_reset_weekly_rate_limits',
9703 - 'mxchat_reset_monthly_rate_limits'
9704 - ];
9705 -
9706 - foreach ($hooks_to_clear as $hook) {
9707 - // Only clear a maximum of 3 instances to prevent infinite loops
9708 - $cleared = 0;
9709 - while (wp_next_scheduled($hook) && $cleared < 3) {
9710 - wp_clear_scheduled_hook($hook);
9711 - $cleared++;
9712 - }
9713 - }
9714 -
9715 - // Small delay after clearing
9716 - usleep(100000); // 0.1 seconds
9717 -
9718 - // Try to schedule the event
9719 - $initial_time = time() + 300; // Start in 5 minutes
9720 - $result = wp_schedule_event($initial_time, 'hourly', 'mxchat_reset_rate_limits');
9721 -
9722 - if ($result === false) {
9723 - //error_log('MxChat: Failed to schedule cron, using fallback system');
9724 - $this->setup_fallback_rate_limit_system();
9725 - } else {
9726 - //error_log('MxChat: Successfully scheduled rate limit reset cron');
9727 - }
9728 -
9729 - } catch (Exception $e) {
9730 - //error_log('MxChat: Cron setup exception: ' . $e->getMessage());
9731 - $this->setup_fallback_rate_limit_system();
9732 - }
9733 -}
9734 3478
9735 -/**
9736 - * Try alternative cron scheduling methods
9737 - */
9738 -private function try_alternative_cron_scheduling($initial_time) {
9739 - try {
9740 - // Method 1: Try with current time instead of future time
9741 - $result1 = wp_schedule_event(time(), 'hourly', 'mxchat_reset_rate_limits');
9742 - if ($result1 !== false) {
9743 - //error_log('MxChat: Alternative method 1 (current time) succeeded');
9744 - return true;
9745 - }
9746 -
9747 - // Method 2: Try with a different interval
9748 - $result2 = wp_schedule_event($initial_time, 'daily', 'mxchat_reset_rate_limits');
9749 - if ($result2 !== false) {
9750 - //error_log('MxChat: Alternative method 2 (daily interval) succeeded');
9751 - return true;
9752 - }
9753 -
9754 - // Method 3: Try wp_schedule_single_event first, then recurring
9755 - $result3 = wp_schedule_single_event($initial_time, 'mxchat_reset_rate_limits');
9756 - if ($result3 !== false) {
9757 - //error_log('MxChat: Alternative method 3 (single event) succeeded');
9758 - // Schedule the next one manually in the handler
9759 - return true;
9760 - }
9761 -
9762 - return false;
9763 -
9764 - } catch (Exception $e) {
9765 - //error_log('MxChat: Alternative cron scheduling exception: ' . $e->getMessage());
9766 - return false;
9767 - }
9768 -}
9769 -
9770 -/**
9771 - * Enhanced fallback rate limit system
9772 - */
9773 -private function setup_fallback_rate_limit_system() {
9774 - // Set a flag to use database-based rate limit cleanup
9775 - update_option('mxchat_use_fallback_rate_limits', true);
9776 -
9777 - // Schedule a one-time check to happen on the next plugin load
9778 - update_option('mxchat_next_rate_limit_check', time() + 3600);
9779 -
9780 - // Also set up a more frequent fallback check (every 4 hours)
9781 - update_option('mxchat_fallback_check_interval', 4 * 3600);
9782 -
9783 - //error_log('MxChat: Fallback rate limit system activated');
9784 -}
9785 -
9786 -/**
9787 - * Enhanced fallback check method
9788 - */
9789 -public function check_fallback_rate_limits() {
9790 - $use_fallback = get_option('mxchat_use_fallback_rate_limits', false);
9791 -
9792 - if (!$use_fallback) {
9793 - return; // Regular cron is working
9794 - }
9795 -
9796 - $next_check = get_option('mxchat_next_rate_limit_check', 0);
9797 - $check_interval = get_option('mxchat_fallback_check_interval', 3600);
9798 -
9799 - if (time() >= $next_check) {
9800 - //error_log('MxChat: Running fallback rate limit cleanup');
9801 - $this->mxchat_reset_rate_limits();
9802 -
9803 - // Schedule next check
9804 - update_option('mxchat_next_rate_limit_check', time() + $check_interval);
9805 - }
9806 -}
9807 -/**
9808 - * Enhanced rate limit check that includes fallback cleanup and bot-specific rate limits
9809 - */
9810 -public function check_rate_limit() {
9811 - // Check if we need to run fallback cleanup
9812 - $use_fallback = get_option('mxchat_use_fallback_rate_limits', false);
9813 - $next_check = get_option('mxchat_next_rate_limit_check', 0);
9814 -
9815 - if ($use_fallback && time() >= $next_check) {
9816 - $this->mxchat_reset_rate_limits();
9817 - update_option('mxchat_next_rate_limit_check', time() + 3600); // Next hour
9818 - }
9819 -
9820 - // Get bot ID from current request context
9821 - $bot_id = isset($_POST['bot_id']) ? sanitize_key($_POST['bot_id']) : 'default';
9822 -
9823 - // Get bot-specific options (includes rate limits if overridden)
9824 - $bot_options = $this->get_bot_options($bot_id);
9825 - $current_options = !empty($bot_options) ? $bot_options : $this->options;
9826 -
9827 - // Use bot-specific rate limits if available, otherwise fall back to default
9828 - $rate_limits_source = isset($current_options['rate_limits']) ? $current_options['rate_limits'] : get_option('mxchat_options', [])['rate_limits'] ?? [];
9829 -
9830 - // Determine user role or if logged out
9831 - if (is_user_logged_in()) {
9832 - $user = wp_get_current_user();
9833 - $user_id = $user->ID;
9834 -
9835 - // Get the user's primary role using reset() to safely get the first element
9836 - $user_roles = $user->roles;
9837 -
9838 - // Safely get the first role regardless of array key structure
9839 - if (!empty($user_roles) && is_array($user_roles)) {
9840 - $role = reset($user_roles); // This safely gets the first element regardless of key
9841 - } else {
9842 - $role = 'subscriber'; // Default to subscriber if no role found
9843 - }
9844 - } else {
9845 - $role = 'logged_out';
9846 - // Use IP address for non-logged-in users
9847 - $user_id = $this->get_client_ip();
9848 - }
9849 -
9850 - // Check if rate limits are configured for this role
9851 - if (!isset($rate_limits_source[$role])) {
9852 - return true; // No limit set for this role
9853 - }
9854 -
9855 - $limit = $rate_limits_source[$role]['limit'];
9856 -
9857 - // If unlimited, return true immediately
9858 - if ($limit === 'unlimited') {
9859 - return true;
9860 - }
9861 -
9862 - // Get the option name for this user/role with safer naming (include bot_id for bot-specific limits)
9863 - $safe_role = preg_replace('/[^a-zA-Z0-9_]/', '_', $role);
9864 - $safe_user_id = preg_replace('/[^a-zA-Z0-9_]/', '_', $user_id);
9865 - $safe_bot_id = preg_replace('/[^a-zA-Z0-9_]/', '_', $bot_id);
9866 -
9867 - // Include bot_id in option name so each bot has separate rate limits
9868 - $option_name = 'mxchat_chat_limit_' . $safe_bot_id . '_' . $safe_role . '_' . $safe_user_id;
9869 -
9870 - // Get the counter data
9871 - $limit_data = get_option($option_name, ['count' => 0, 'timestamp' => time()]);
9872 -
9873 - // If first request or counter reset needed, set the initial timestamp
9874 - if ($limit_data['count'] === 0) {
9875 - $limit_data['timestamp'] = time();
9876 - update_option($option_name, $limit_data);
9877 - }
9878 -
9879 - // Get the timeframe
9880 - $timeframe = isset($rate_limits_source[$role]['timeframe']) ?
9881 - $rate_limits_source[$role]['timeframe'] : 'daily';
9882 -
9883 - // Check if the counter needs to be reset based on timeframe
9884 - $current_time = time();
9885 - $timestamp = $limit_data['timestamp'];
9886 - $should_reset = false;
9887 -
9888 - switch ($timeframe) {
9889 - case 'hourly':
9890 - $should_reset = ($current_time - $timestamp) >= 3600; // 1 hour
9891 - break;
9892 - case 'daily':
9893 - $should_reset = ($current_time - $timestamp) >= 86400; // 24 hours
9894 - break;
9895 - case 'weekly':
9896 - $should_reset = ($current_time - $timestamp) >= 604800; // 7 days
9897 - break;
9898 - case 'monthly':
9899 - $should_reset = ($current_time - $timestamp) >= 2592000; // 30 days
9900 - break;
9901 - }
9902 -
9903 - // Reset the counter if the timeframe has passed
9904 - if ($should_reset) {
9905 - $limit_data = ['count' => 0, 'timestamp' => $current_time];
9906 - update_option($option_name, $limit_data);
9907 - }
9908 -
9909 - // Check if user has exceeded their limit
9910 - if ($limit_data['count'] >= intval($limit)) {
9911 - // Get the custom message for this role
9912 - $message = !empty($rate_limits_source[$role]['message'])
9913 - ? $rate_limits_source[$role]['message']
9914 - : __('Rate limit exceeded. Please try again later.', 'mxchat');
9915 -
9916 - // Add timeframe information to the message if placeholders exist
9917 - $timeframe_label = '';
9918 - switch ($timeframe) {
9919 - case 'hourly':
9920 - $timeframe_label = __('hour', 'mxchat');
9921 - break;
9922 - case 'daily':
9923 - $timeframe_label = __('day', 'mxchat');
9924 - break;
9925 - case 'weekly':
9926 - $timeframe_label = __('week', 'mxchat');
9927 - break;
9928 - case 'monthly':
9929 - $timeframe_label = __('month', 'mxchat');
9930 - break;
9931 - }
9932 -
9933 - // Replace placeholders in the message
9934 - $message = str_replace(
9935 - ['{limit}', '{count}', '{remaining}', '{timeframe}'],
9936 - [intval($limit), $limit_data['count'], max(0, intval($limit) - $limit_data['count']), $timeframe_label],
9937 - $message
9938 - );
9939 -
9940 - // Process HTML links in the message
9941 - $message = $this->process_rate_limit_message_html($message);
9942 -
9943 - // Return error with the processed message
9944 - return [
9945 - 'error' => true,
9946 - 'message' => $message
9947 - ];
9948 - }
9949 -
9950 - // Increment the counter
9951 - $limit_data['count']++;
9952 - update_option($option_name, $limit_data);
9953 -
9954 - return true;
9955 -}
9956 -
9957 -/**
9958 - * Enhanced rate limit reset with better error handling
9959 - */
9960 3479 public function mxchat_reset_rate_limits() {
9961 - try {
9962 3480 global $wpdb;
9963 - $all_options = get_option('mxchat_options', []);
9964 - $current_time = time();
9965 -
9966 - // Get rate limit options with a safer query and limit
9967 - $option_names = $wpdb->get_col(
9968 - $wpdb->prepare(
9969 - "SELECT option_name FROM {$wpdb->options}
9970 - WHERE option_name LIKE %s
9971 - LIMIT 1000",
9972 - 'mxchat_chat_limit_%'
9973 - )
9974 - );
9975 -
9976 - if (empty($option_names)) {
9977 - return;
9978 - }
9979 -
9980 - $processed_count = 0;
9981 - $max_processing_time = 30; // Maximum 30 seconds
9982 - $start_time = time();
9983 -
9984 - foreach ($option_names as $option_name) {
9985 - // Check processing time limit
9986 - if ((time() - $start_time) > $max_processing_time) {
9987 - //error_log('MxChat: Rate limit reset timeout after processing ' . $processed_count . ' entries');
9988 - break;
9989 - }
9990 -
9991 - // Parse the option name more safely
9992 - if (!preg_match('/^mxchat_chat_limit_(.+)_(.+)$/', $option_name, $matches)) {
9993 - continue;
9994 - }
9995 -
9996 - $role_and_user = $matches[1] . '_' . $matches[2];
9997 - $parts = explode('_', $role_and_user);
9998 -
9999 - if (count($parts) < 2) {
10000 - continue;
10001 - }
10002 -
10003 - // Extract role (everything except the last part which is user ID)
10004 - $user_id_part = array_pop($parts);
10005 - $role = implode('_', $parts);
10006 -
10007 - // Skip if role doesn't exist in our settings
10008 - if (!isset($all_options['rate_limits'][$role])) {
10009 - // Clean up orphaned entries
10010 - delete_option($option_name);
10011 - continue;
10012 - }
10013 -
10014 - $timeframe = $all_options['rate_limits'][$role]['timeframe'] ?? 'daily';
10015 - $limit_data = get_option($option_name);
10016 -
10017 - if (!$limit_data || !is_array($limit_data) || !isset($limit_data['timestamp'])) {
10018 - // Clean up invalid entries
10019 - delete_option($option_name);
10020 - continue;
10021 - }
10022 -
10023 - $timestamp = $limit_data['timestamp'];
10024 - $should_reset = false;
10025 -
10026 - // Determine if we should reset based on the timeframe
10027 - switch ($timeframe) {
10028 - case 'hourly':
10029 - $should_reset = ($current_time - $timestamp) >= 3600;
10030 - break;
10031 - case 'daily':
10032 - $should_reset = ($current_time - $timestamp) >= 86400;
10033 - break;
10034 - case 'weekly':
10035 - $should_reset = ($current_time - $timestamp) >= 604800;
10036 - break;
10037 - case 'monthly':
10038 - $should_reset = ($current_time - $timestamp) >= 2592000;
10039 - break;
10040 - }
10041 -
10042 - // Reset the counter if the timeframe has passed
10043 - if ($should_reset) {
10044 - delete_option($option_name);
10045 - wp_cache_delete($option_name, 'options');
10046 - $processed_count++;
10047 - }
10048 - }
10049 -
10050 - // Clean up any orphaned cache entries
10051 - wp_cache_delete('mxchat_all_chat_limits', 'options');
10052 -
10053 - //error_log("MxChat: Rate limit reset completed. Processed {$processed_count} entries.");
10054 -
10055 - } catch (Exception $e) {
10056 - //error_log('MxChat: Rate limit reset error: ' . $e->getMessage());
10057 - }
10058 -}
10059 3481
3482 + // Define a cache key pattern for rate limits
3483 + $cache_key_pattern = 'mxchat_chat_limit_%';
10060 3484
10061 -/**
10062 - * Process HTML links in rate limit messages
10063 - *
10064 - * @param string $message The rate limit message
10065 - * @return string The processed message with safe HTML links
10066 - */
10067 -private function process_rate_limit_message_html($message) {
10068 - // Return original message if empty
10069 - if (empty($message)) {
10070 - return $message;
10071 - }
10072 -
10073 - // First, convert markdown links to HTML
10074 - $message = $this->convert_markdown_links($message);
10075 -
10076 - // Then, auto-convert any remaining plain URLs to links
10077 - $message = $this->auto_link_urls($message);
10078 -
10079 - // Allow basic HTML tags for links and formatting
10080 - $allowed_tags = [
10081 - 'a' => [
10082 - 'href' => true,
10083 - 'target' => true,
10084 - 'rel' => true,
10085 - 'title' => true,
10086 - 'class' => true
10087 - ],
10088 - 'strong' => [],
10089 - 'em' => [],
10090 - 'br' => [],
10091 - 'b' => [],
10092 - 'i' => [],
10093 - 'span' => ['class' => true]
10094 - ];
10095 -
10096 - // Sanitize but allow the specified HTML tags
10097 - $processed_message = wp_kses($message, $allowed_tags);
10098 -
10099 - // If wp_kses stripped everything, return the original message as plain text
10100 - if (empty($processed_message) && !empty($message)) {
10101 - // Strip all HTML and return plain text as fallback
10102 - return wp_strip_all_tags($message);
10103 - }
10104 -
10105 - return $processed_message;
10106 -}
3485 + // Retrieve all option names matching the pattern
3486 + // phpcs:ignore WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.DirectQuery
3487 + $option_names = $wpdb->get_col("SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE 'mxchat_chat_limit_%'");
10107 3488
10108 -/**
10109 - * Convert markdown links to HTML
10110 - *
10111 - * @param string $text The text to process
10112 - * @return string The text with markdown links converted to HTML
10113 - */
10114 -private function convert_markdown_links($text) {
10115 - // Return original text if empty
10116 - if (empty($text)) {
10117 - return $text;
10118 - }
10119 -
10120 - // Pattern to match markdown links: [text](url)
10121 - $pattern = '/\[([^\]]+)\]\(([^)]+)\)/';
10122 -
10123 - $processed_text = preg_replace_callback($pattern, function($matches) {
10124 - $link_text = $matches[1];
10125 - $url = $matches[2];
10126 -
10127 - // Clean up any trailing punctuation from the URL
10128 - $url = rtrim($url, '.,;:!?');
10129 -
10130 - // Sanitize the link text and URL
10131 - $safe_text = esc_html($link_text);
10132 - $safe_url = esc_url($url);
10133 -
10134 - // Create the HTML link
10135 - return '<a href="' . $safe_url . '" target="_blank" rel="noopener noreferrer">' . $safe_text . '</a>';
10136 - }, $text);
10137 -
10138 - // If preg_replace_callback failed, return original text
10139 - if ($processed_text === null) {
10140 - return $text;
10141 - }
10142 -
10143 - return $processed_text;
10144 -}
3489 + // db call ok; no-cache ok
3490 + // phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery -- db call ok
3491 + $wpdb->query("DELETE FROM {$wpdb->options} WHERE option_name LIKE 'mxchat_chat_limit_%'");
10145 3492
10146 -/**
10147 - * Auto-convert plain URLs to clickable links
10148 - *
10149 - * @param string $text The text to process
10150 - * @return string The text with URLs converted to links
10151 - */
10152 -private function auto_link_urls($text) {
10153 - // Return original text if empty
10154 - if (empty($text)) {
10155 - return $text;
10156 - }
10157 -
10158 - // Simple pattern that avoids complex lookbehinds
10159 - // This will match URLs that are not already inside href attributes or markdown links
10160 - $pattern = '/(?<!href=["\'])(?<!\]\()https?:\/\/[^\s<>"\')\]]+/i';
10161 -
10162 - $processed_text = preg_replace_callback($pattern, function($matches) {
10163 - $url = $matches[0];
10164 - // Clean up any trailing punctuation that might have been captured
10165 - $url = rtrim($url, '.,;:!?');
10166 -
10167 - // Add target="_blank" and rel="noopener noreferrer" for security
10168 - return '<a href="' . esc_url($url) . '" target="_blank" rel="noopener noreferrer">' . esc_html($url) . '</a>';
10169 - }, $text);
10170 -
10171 - // If preg_replace_callback failed, return original text
10172 - if ($processed_text === null) {
10173 - return $text;
10174 - }
10175 -
10176 - return $processed_text;
10177 -}
3493 + // Clear the relevant cache entries
3494 + foreach ($option_names as $option_name) {
3495 + wp_cache_delete($option_name, 'options');
3496 + }
10178 3497
10179 -
10180 -// Helper function to get client IP address
10181 -private function get_client_ip() {
10182 - // Check for shared internet/ISP IP
10183 - if (!empty($_SERVER['HTTP_CLIENT_IP'])) {
10184 - return sanitize_text_field($_SERVER['HTTP_CLIENT_IP']);
3498 + // Optionally, clear a general cache if you have one
3499 + wp_cache_delete('mxchat_all_chat_limits', 'options');
10185 3500 }
10186 -
10187 - // Check for IPs passing through proxies
10188 - if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
10189 - // Use the first value in the comma-separated list
10190 - $forwarded_for = explode(',', sanitize_text_field($_SERVER['HTTP_X_FORWARDED_FOR']));
10191 - return trim($forwarded_for[0]);
10192 - }
10193 -
10194 - if (!empty($_SERVER['REMOTE_ADDR'])) {
10195 - return sanitize_text_field($_SERVER['REMOTE_ADDR']);
10196 - }
10197 -
10198 - // Fallback
10199 - return 'unknown';
10200 -}
10201 3501
10202 -/**
10203 - * AJAX handler to get system information for testing panel
10204 - */
10205 -/**
10206 - * AJAX handler to get system information for testing panel
10207 - */
10208 -public function mxchat_get_system_info() {
10209 - // Verify nonce for security
10210 - if (!wp_verify_nonce($_POST['nonce'], 'mxchat_test_nonce')) {
10211 - wp_send_json_error(['message' => 'Invalid nonce']);
10212 - return;
3502 +private function mxchat_fetch_woocommerce_products() {
3503 + // Ensure WooCommerce is active
3504 + if (!class_exists('WooCommerce')) {
3505 + return [];
10213 3506 }
10214 -
10215 - // Only allow admin users
10216 - if (!current_user_can('administrator')) {
10217 - wp_send_json_error(['message' => 'Unauthorized']);
10218 - return;
10219 - }
10220 -
10221 - // Get system prompt from options
10222 - $system_prompt = isset($this->options['system_prompt_instructions'])
10223 - ? $this->options['system_prompt_instructions']
10224 - : 'No system prompt configured';
10225 -
10226 - // Get selected model
10227 - $selected_model = isset($this->options['model']) ? $this->options['model'] : 'gpt-5.1-chat-latest';
10228 -
10229 - // Check if OpenRouter is being used
10230 - $is_openrouter = ($selected_model === 'openrouter');
10231 - $openrouter_model = '';
10232 -
10233 - if ($is_openrouter) {
10234 - // Get the actual OpenRouter model that's selected
10235 - $openrouter_model = isset($this->options['openrouter_selected_model'])
10236 - ? $this->options['openrouter_selected_model']
10237 - : 'No OpenRouter model selected';
10238 -
10239 - // Update selected_model display to show both
10240 - $selected_model = 'OpenRouter: ' . $openrouter_model;
10241 - }
10242 -
10243 - // Get API key status (just check if they exist, don't expose the keys)
10244 - $api_status = [];
10245 - $api_status['openai'] = !empty($this->options['api_key']);
10246 - $api_status['claude'] = !empty($this->options['claude_api_key']);
10247 - $api_status['gemini'] = !empty($this->options['gemini_api_key']);
10248 - $api_status['xai'] = !empty($this->options['xai_api_key']);
10249 - $api_status['deepseek'] = !empty($this->options['deepseek_api_key']);
10250 - $api_status['openrouter'] = !empty($this->options['openrouter_api_key']);
10251 -
10252 - wp_send_json_success([
10253 - 'system_prompt' => $system_prompt,
10254 - 'selected_model' => $selected_model,
10255 - 'is_openrouter' => $is_openrouter,
10256 - 'openrouter_model' => $openrouter_model,
10257 - 'api_status' => $api_status
10258 - ]);
10259 -}
10260 3507
10261 -/**
10262 - * AJAX handler to get similarity threshold
10263 - */
10264 -public function mxchat_get_similarity_threshold() {
10265 - // Verify nonce for security
10266 - if (!wp_verify_nonce($_POST['nonce'], 'mxchat_test_nonce')) {
10267 - wp_send_json_error(['message' => 'Invalid nonce']);
10268 - return;
10269 - }
10270 -
10271 - // Only allow admin users
10272 - if (!current_user_can('administrator')) {
10273 - wp_send_json_error(['message' => 'Unauthorized']);
10274 - return;
10275 - }
10276 -
10277 - // Get similarity threshold from main options (default 35%)
10278 - $similarity_threshold = isset($this->options['similarity_threshold'])
10279 - ? ((int) $this->options['similarity_threshold']) / 100
10280 - : 0.35;
10281 -
10282 - wp_send_json_success([
10283 - 'threshold' => $similarity_threshold,
10284 - 'threshold_percentage' => ($similarity_threshold * 100) . '%'
10285 - ]);
10286 -}
3508 + $args = array(
3509 + 'post_type' => 'product',
3510 + 'post_status' => 'publish',
3511 + 'posts_per_page' => -1,
3512 + );
10287 3513
10288 -/**
10289 - * AJAX handler to get knowledge base status
10290 - */
10291 -public function mxchat_get_kb_status() {
10292 - // Verify nonce for security
10293 - if (!wp_verify_nonce($_POST['nonce'], 'mxchat_test_nonce')) {
10294 - wp_send_json_error(['message' => 'Invalid nonce']);
10295 - return;
10296 - }
3514 + $products = get_posts($args);
3515 + $product_data = [];
10297 3516
10298 - // Only allow admin users
10299 - if (!current_user_can('administrator')) {
10300 - wp_send_json_error(['message' => 'Unauthorized']);
10301 - return;
10302 - }
3517 + foreach ($products as $product) {
3518 + $product_id = $product->ID;
3519 + $product_obj = wc_get_product($product_id);
10303 3520
10304 - // Check OpenAI Vector Store first (takes priority)
10305 - $vectorstore_options = get_option('mxchat_openai_vectorstore_options', array());
10306 - $use_vectorstore = (isset($vectorstore_options['mxchat_use_openai_vectorstore']) && $vectorstore_options['mxchat_use_openai_vectorstore'] === '1');
10307 -
10308 - if ($use_vectorstore) {
10309 - $vectorstore_ids = $vectorstore_options['mxchat_openai_vectorstore_ids'] ?? '';
10310 - $id_count = !empty($vectorstore_ids) ? count(array_filter(array_map('trim', explode(',', $vectorstore_ids)))) : 0;
10311 -
10312 - $kb_info = [
10313 - 'type' => 'OpenAI Vector Store',
10314 - 'status' => 'Active',
10315 - 'documents' => $id_count > 0 ? $id_count . ' vector store' . ($id_count > 1 ? 's' : '') . ' configured' : 'No vector stores configured'
10316 - ];
10317 -
10318 - wp_send_json_success($kb_info);
10319 - return;
3521 + $product_data[] = array(
3522 + 'id' => $product_id,
3523 + 'name' => $product_obj->get_name(),
3524 + 'description' => $product_obj->get_description(),
3525 + 'short_description' => $product_obj->get_short_description(),
3526 + 'url' => get_permalink($product_id),
3527 + 'price' => $product_obj->get_regular_price(),
3528 + 'sale_price' => $product_obj->get_sale_price(),
3529 + 'stock_status' => $product_obj->get_stock_status(),
3530 + 'sku' => $product_obj->get_sku(),
3531 + 'in_stock' => $product_obj->is_in_stock(),
3532 + 'total_sales' => $product_obj->get_total_sales(),
3533 + );
10320 3534 }
10321 3535
10322 - // Check Pinecone vs WordPress
10323 - $addon_options = get_option('mxchat_pinecone_addon_options', array());
10324 - $use_pinecone = (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1');
10325 -
10326 - $kb_info = [
10327 - 'type' => $use_pinecone ? 'Pinecone' : 'WordPress Database',
10328 - 'status' => 'Active'
10329 - ];
10330 -
10331 - // Get document count
10332 - if ($use_pinecone) {
10333 - $kb_info['documents'] = 'Connected to Pinecone';
10334 - $kb_info['api_configured'] = !empty($addon_options['mxchat_pinecone_api_key']);
10335 - } else {
10336 - // Count documents in WordPress database
10337 - global $wpdb;
10338 - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
10339 - $count = $wpdb->get_var("SELECT COUNT(*) FROM {$table_name}");
10340 - $kb_info['documents'] = $count ? $count . ' documents' : 'No documents';
10341 - }
10342 -
10343 - wp_send_json_success($kb_info);
3536 + return $product_data;
10344 3537 }
10345 -
10346 -/**
10347 - * AJAX handler to start a completely fresh session (NEW - replaces old clear session)
10348 - */
10349 -public function mxchat_start_fresh_session() {
10350 - // Verify nonce for security
10351 - if (!wp_verify_nonce($_POST['nonce'], 'mxchat_test_nonce')) {
10352 - wp_send_json_error(['message' => 'Invalid nonce']);
10353 - return;
10354 - }
10355 -
10356 - // Only allow admin users
10357 - if (!current_user_can('administrator')) {
10358 - wp_send_json_error(['message' => 'Unauthorized']);
10359 - return;
10360 - }
10361 -
10362 - $old_session_id = isset($_POST['old_session_id']) ? sanitize_text_field($_POST['old_session_id']) : '';
10363 - $new_session_id = isset($_POST['new_session_id']) ? sanitize_text_field($_POST['new_session_id']) : '';
10364 -
10365 - if (empty($old_session_id)) {
10366 - wp_send_json_error(['message' => 'Old session ID required']);
10367 - return;
10368 - }
10369 -
10370 - // If no new session ID provided, generate one
10371 - if (empty($new_session_id)) {
10372 - $new_session_id = 'mxchat_chat_' . substr(md5(uniqid()), 0, 9);
10373 - }
10374 -
10375 - // Clear ALL data associated with the old session
10376 - $this->clear_complete_session_data($old_session_id);
10377 -
10378 - // Initialize the new session
10379 - $this->initialize_fresh_session($new_session_id);
10380 -
10381 - wp_send_json_success([
10382 - 'message' => 'Fresh session started successfully',
10383 - 'new_session_id' => $new_session_id,
10384 - 'old_session_id' => $old_session_id
10385 - ]);
10386 -}
10387 -
10388 -/**
10389 - * Clear ALL data associated with a session (ENHANCED)
10390 - */
10391 -private function clear_complete_session_data($session_id) {
10392 - // Clear chat history
10393 - delete_option("mxchat_history_{$session_id}");
10394 -
10395 - // Clear chat mode
10396 - delete_option("mxchat_mode_{$session_id}");
10397 -
10398 - // Clear any PDF/Word transients
10399 - $this->clear_pdf_transients($session_id);
10400 - if (method_exists($this, 'clear_word_transients')) {
10401 - $this->clear_word_transients($session_id);
10402 - }
10403 -
10404 - // Clear agent-related data
10405 - delete_option("mxchat_channel_{$session_id}");
10406 - delete_option("mxchat_agent_name_{$session_id}");
10407 - delete_option("mxchat_email_{$session_id}");
10408 -
10409 - // Clear any recommendation flow state
10410 - delete_option("mxchat_sr_flow_state_{$session_id}");
10411 -
10412 - // Clear any cached embeddings or context
10413 - delete_transient("mxchat_context_{$session_id}");
10414 - delete_transient("mxchat_last_query_{$session_id}");
10415 -
10416 - // Clear any testing data
10417 - delete_transient("mxchat_testing_data_{$session_id}");
10418 -
10419 - // Clear any rate limiting data for this session
10420 - delete_transient("mxchat_rate_limit_{$session_id}");
10421 -
10422 - // Clear any other session-specific transients
10423 - delete_transient("mxchat_waiting_for_pdf_url_{$session_id}");
10424 - delete_transient("mxchat_include_pdf_in_context_{$session_id}");
10425 - delete_transient("mxchat_include_word_in_context_{$session_id}");
10426 -
10427 - // Clear form addon state (pending forms and submitted forms)
10428 - delete_option("mxchat_pending_form_{$session_id}");
10429 - delete_option("mxchat_submitted_forms_{$session_id}");
10430 -
10431 - //error_log("MxChat: Cleared all data for session: {$session_id}");
10432 -}
10433 -
10434 -/**
10435 - * Initialize a fresh session with default data
10436 - */
10437 -private function initialize_fresh_session($session_id) {
10438 - // Set default chat mode
10439 - update_option("mxchat_mode_{$session_id}", 'ai');
10440 -
10441 - //error_log("MxChat: Initialized fresh session: {$session_id}");
10442 -}
10443 -
10444 -/**
10445 - * Helper method to clear Word document transients (if you have Word support)
10446 - */
10447 -private function clear_word_transients($session_id) {
10448 - delete_transient('mxchat_word_url_' . $session_id);
10449 - delete_transient('mxchat_word_filename_' . $session_id);
10450 - delete_transient('mxchat_word_embeddings_' . $session_id);
10451 - delete_transient('mxchat_include_word_in_context_' . $session_id);
10452 -}
10453 -
10454 -/**
10455 - * Simplified testing data capture method (CLEANED UP)
10456 - */
10457 -private function capture_testing_data($user_embedding, $message, $session_id) {
10458 - // Only capture for admin users
10459 - if (!current_user_can('administrator')) {
10460 - return null;
10461 - }
10462 -
10463 - $testing_data = [
10464 - 'query' => $message,
10465 - 'timestamp' => time(),
10466 - 'top_matches' => [],
10467 - 'action_matches' => [] // Add action matches
10468 - ];
10469 -
10470 - // Get similarity threshold
10471 - $similarity_threshold = isset($this->options['similarity_threshold'])
10472 - ? ((int) $this->options['similarity_threshold']) / 100
10473 - : 0.35;
10474 -
10475 - $testing_data['similarity_threshold'] = $similarity_threshold;
10476 -
10477 - // Use the real similarity analysis if available
10478 - if ($this->last_similarity_analysis !== null) {
10479 - $testing_data['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'];
10480 - $testing_data['top_matches'] = $this->last_similarity_analysis['top_matches'];
10481 - $testing_data['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0;
10482 - } else {
10483 - // Fallback: determine knowledge base type
10484 - $addon_options = get_option('mxchat_pinecone_addon_options', array());
10485 - $use_pinecone = (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1');
10486 -
10487 - $testing_data['knowledge_base_type'] = $use_pinecone ? 'Pinecone' : 'WordPress Database';
10488 - }
10489 -
10490 - // Include action analysis if available
10491 - if (isset($this->last_action_analysis) && !empty($this->last_action_analysis)) {
10492 - $testing_data['action_matches'] = $this->last_action_analysis;
10493 -
10494 - // Clear it after capturing to avoid stale data
10495 - $this->last_action_analysis = null;
10496 - }
10497 -
10498 - return $testing_data;
10499 -}
10500 -
10501 -
10502 -/**
10503 - * Track URL clicks from chatbot responses
10504 - */
10505 -public function mxchat_track_url_click() {
10506 - // Verify nonce for security
10507 - if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'mxchat_chat_nonce')) {
10508 - wp_send_json_error(['message' => 'Invalid nonce']);
10509 - wp_die();
10510 - }
10511 -
10512 - $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : '';
10513 - $clicked_url = isset($_POST['url']) ? esc_url_raw($_POST['url']) : '';
10514 - $message_context = isset($_POST['message_context']) ? sanitize_textarea_field($_POST['message_context']) : '';
10515 -
10516 - if (empty($session_id) || empty($clicked_url)) {
10517 - wp_send_json_error(['message' => 'Missing required data']);
10518 - wp_die();
10519 - }
10520 -
10521 - global $wpdb;
10522 - $table_name = $wpdb->prefix . 'mxchat_url_clicks';
10523 -
10524 - // Insert click tracking record
10525 - $wpdb->insert(
10526 - $table_name,
10527 - [
10528 - 'session_id' => $session_id,
10529 - 'clicked_url' => $clicked_url,
10530 - 'message_context' => $message_context,
10531 - 'click_timestamp' => current_time('mysql', 1),
10532 - 'user_ip' => $_SERVER['REMOTE_ADDR'],
10533 - 'user_agent' => $_SERVER['HTTP_USER_AGENT']
10534 - ]
10535 - );
10536 -
10537 - wp_send_json_success(['message' => 'Click tracked']);
10538 - wp_die();
10539 -}
10540 -
10541 -/**
10542 - * Get URL click analytics for a session
10543 - */
10544 -public function mxchat_get_url_clicks($session_id) {
10545 - global $wpdb;
10546 - $table_name = $wpdb->prefix . 'mxchat_url_clicks';
10547 -
10548 - $clicks = $wpdb->get_results($wpdb->prepare(
10549 - "SELECT * FROM $table_name WHERE session_id = %s ORDER BY click_timestamp ASC",
10550 - $session_id
10551 - ));
10552 -
10553 - return $clicks;
10554 -}
10555 -/**
10556 - * Track the originating page where chat was started
10557 - */
10558 -public function mxchat_track_originating_page() {
10559 - // Verify nonce
10560 - if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'mxchat_chat_nonce')) {
10561 - wp_send_json_error(['message' => 'Invalid nonce']);
10562 - wp_die();
10563 - }
10564 -
10565 - $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : '';
10566 - $page_url = isset($_POST['page_url']) ? esc_url_raw($_POST['page_url']) : '';
10567 - $page_title = isset($_POST['page_title']) ? sanitize_text_field($_POST['page_title']) : '';
10568 -
10569 - if (empty($session_id)) {
10570 - wp_send_json_error(['message' => 'Missing session ID']);
10571 - wp_die();
10572 - }
10573 -
10574 - global $wpdb;
10575 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
10576 -
10577 - // Check if we've already tracked for this session
10578 - $existing = $wpdb->get_var($wpdb->prepare(
10579 - "SELECT COUNT(*) FROM $table_name
10580 - WHERE session_id = %s
10581 - AND originating_page_url IS NOT NULL",
10582 - $session_id
10583 - ));
10584 -
10585 - if ($existing > 0) {
10586 - wp_send_json_success(['message' => 'Already tracked']);
10587 - wp_die();
10588 - }
10589 -
10590 - // Update the first message in this session with originating page info
10591 - $wpdb->query($wpdb->prepare(
10592 - "UPDATE $table_name
10593 - SET originating_page_url = %s,
10594 - originating_page_title = %s
10595 - WHERE session_id = %s
10596 - ORDER BY timestamp ASC
10597 - LIMIT 1",
10598 - $page_url,
10599 - $page_title,
10600 - $session_id
10601 - ));
10602 -
10603 - wp_send_json_success(['message' => 'Originating page tracked']);
10604 - wp_die();
10605 -}
10606 -
10607 -/**
10608 - * Validate and clean URLs from AI response
10609 - * Removes any URLs that aren't in the knowledge base
10610 - *
10611 - * @param string $response_text The AI-generated response
10612 - * @param array $valid_urls Array of URLs from the knowledge base
10613 - * @return string Cleaned response with invalid URLs removed/flagged
10614 - */
10615 -private function validate_and_clean_urls($response_text, $valid_urls) {
10616 - // DEBUG: Log what we're working with
10617 - //error_log("=== MxChat URL Validation Debug ===");
10618 - //error_log("Valid URLs count: " . count($valid_urls));
10619 - //error_log("Valid URLs: " . print_r($valid_urls, true));
10620 - //error_log("Response text length: " . strlen($response_text));
10621 - //error_log("Response text preview: " . substr($response_text, 0, 500));
10622 -
10623 - // If no valid URLs provided or empty response, return as-is
10624 - if (empty($valid_urls) || empty($response_text)) {
10625 - //error_log("Validation skipped - empty valid_urls or response");
10626 - return $response_text;
10627 - }
10628 -
10629 - // Extract all URLs from the AI response
10630 - // This regex matches http:// and https:// URLs
10631 - preg_match_all(
10632 - '#\bhttps?://[^\s<>"\')\]]+#i',
10633 - $response_text,
10634 - $matches
10635 - );
10636 -
10637 - // If no URLs found in response, return as-is
10638 - if (empty($matches[0])) {
10639 - //error_log("No URLs found in response");
10640 - return $response_text;
10641 - }
10642 -
10643 - $found_urls = $matches[0];
10644 - $cleaned_response = $response_text;
10645 - $removed_count = 0;
10646 -
10647 - // Normalize valid URLs for comparison (remove trailing slashes, fragments, etc.)
10648 - $normalized_valid_urls = array_map(function($url) {
10649 - // Remove trailing slash
10650 - $url = rtrim($url, '/');
10651 - // Remove URL fragments (#section)
10652 - $url = preg_replace('/#.*$/', '', $url);
10653 - // Remove trailing punctuation that might have been captured
10654 - $url = rtrim($url, '.,;:!?');
10655 - return $url;
10656 - }, $valid_urls);
10657 -
10658 - //error_log("Normalized valid URLs: " . print_r($normalized_valid_urls, true));
10659 -
10660 - foreach ($found_urls as $found_url) {
10661 - // Clean up the found URL (remove trailing punctuation that might have been captured)
10662 - $clean_found_url = rtrim($found_url, '.,;:!?)');
10663 -
10664 - // DEBUG: Log each URL being checked
10665 - //error_log("Checking found URL: " . $found_url);
10666 -
10667 - // Normalize for comparison
10668 - $normalized_found = rtrim($clean_found_url, '/');
10669 - $normalized_found = preg_replace('/#.*$/', '', $normalized_found);
10670 -
10671 - //error_log("Normalized found URL: " . $normalized_found);
10672 -
10673 - // Check if this URL exists in our valid URLs list
10674 - $is_valid = false;
10675 -
10676 - //error_log("Starting validation checks for: " . $normalized_found);
10677 -
10678 - // First, try exact match
10679 - if (in_array($normalized_found, $normalized_valid_urls)) {
10680 - $is_valid = true;
10681 - //error_log("EXACT MATCH FOUND");
10682 - } else {
10683 - //error_log("No exact match, checking variations...");
10684 - // If no exact match, check if it's a variation (with query params, etc.)
10685 - foreach ($normalized_valid_urls as $valid_url) {
10686 - //error_log(" Comparing against valid URL: " . $valid_url);
10687 -
10688 - // Check if the found URL starts with a valid URL (handles query params)
10689 - if (strpos($normalized_found, $valid_url) === 0) {
10690 - // Check what comes after the valid URL
10691 - $remainder = substr($normalized_found, strlen($valid_url));
10692 -
10693 - // Only valid if:
10694 - // 1. Exact match (remainder is empty)
10695 - // 2. Query params (starts with ?)
10696 - // 3. Fragment (starts with #)
10697 - if (empty($remainder) || $remainder[0] === '?' || $remainder[0] === '#') {
10698 - $is_valid = true;
10699 - //error_log(" MATCH: Found URL is valid variation of base URL");
10700 - break;
10701 - } else {
10702 - //error_log(" NOT A MATCH: Found URL extends path beyond valid URL (remainder: " . $remainder . ")");
10703 - }
10704 - }
10705 - // Also check the reverse (in case valid URL has query params)
10706 - if (strpos($valid_url, $normalized_found) === 0) {
10707 - $is_valid = true;
10708 - //error_log(" MATCH: Valid URL starts with found URL");
10709 - break;
10710 - }
10711 - }
10712 -
10713 - if (!$is_valid) {
10714 - //error_log("NO MATCH FOUND - URL should be removed");
10715 - }
10716 - }
10717 -
10718 - // If URL is not valid, remove it from the response
10719 - if (!$is_valid) {
10720 - // Log the removal for debugging
10721 - //error_log("MxChat: Removed hallucinated URL: " . $found_url);
10722 - //error_log("MxChat: Valid URLs were: " . implode(', ', array_slice($normalized_valid_urls, 0, 5)));
10723 -
10724 - $removed_count++;
10725 -
10726 - // Check if URL is part of a markdown link: [text](url)
10727 - $markdown_pattern = '/\[([^\]]+)\]\(' . preg_quote($found_url, '/') . '\)/';
10728 - if (preg_match($markdown_pattern, $cleaned_response)) {
10729 - //error_log("Found markdown link, removing but keeping text");
10730 - // Remove the markdown link but keep the text
10731 - $cleaned_response = preg_replace($markdown_pattern, '$1', $cleaned_response);
10732 - }
10733 - // Check if URL is part of an HTML link: <a href="url">text</a>
10734 - else if (preg_match('/<a[^>]*href=["\']' . preg_quote($found_url, '/') . '["\'][^>]*>(.*?)<\/a>/i', $cleaned_response, $link_match)) {
10735 - //error_log("Found HTML link, removing but keeping text");
10736 - // Remove the HTML link but keep the text
10737 - $link_text = $link_match[1];
10738 - $cleaned_response = preg_replace(
10739 - '/<a[^>]*href=["\']' . preg_quote($found_url, '/') . '["\'][^>]*>.*?<\/a>/i',
10740 - $link_text,
10741 - $cleaned_response
10742 - );
10743 - }
10744 - // Otherwise just remove the bare URL
10745 - else {
10746 - //error_log("Removing bare URL");
10747 - $cleaned_response = str_replace($found_url, '', $cleaned_response);
10748 - }
10749 - }
10750 - }
10751 -
10752 - // Log summary if any URLs were removed
10753 - if ($removed_count > 0) {
10754 - //error_log("MxChat: URL Validation Summary - Removed {$removed_count} hallucinated URL(s)");
10755 - } else {
10756 - //error_log("MxChat: URL Validation Summary - No URLs removed, all were valid");
10757 - }
10758 -
10759 - // Clean up any double spaces or awkward punctuation left behind
10760 - // IMPORTANT: Only collapse horizontal whitespace (spaces/tabs), preserve newlines for markdown formatting
10761 - $cleaned_response = preg_replace('/[^\S\n]+/', ' ', $cleaned_response); // Collapse spaces/tabs but NOT newlines
10762 - $cleaned_response = preg_replace('/[^\S\n]+([.,;:!?])/', '$1', $cleaned_response); // Same for punctuation cleanup
10763 -
10764 - //error_log("Final cleaned response: " . $cleaned_response);
10765 -
10766 - return trim($cleaned_response);
10767 -}
10768 -
10769 -/**
10770 - * AJAX handler to get current chat mode for a session
10771 - */
10772 -public function mxchat_get_current_chat_mode() {
10773 - // Verify nonce for security
10774 - if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'mxchat_chat_nonce')) {
10775 - wp_send_json_error(['message' => 'Invalid nonce']);
10776 - wp_die();
10777 - }
10778 -
10779 - $session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : '';
10780 -
10781 - if (empty($session_id)) {
10782 - wp_send_json_error(['message' => 'Session ID missing']);
10783 - wp_die();
10784 - }
10785 -
10786 - // Get the current chat mode for this session
10787 - $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai');
10788 -
10789 - wp_send_json_success([
10790 - 'chat_mode' => $chat_mode
10791 - ]);
10792 - wp_die();
10793 -}
10794 -
10795 -
10796 3538
10797 3539 }
10798 3540 ?>