← All changes | includes/class-mxchat-integrator.php +597 -4073 3.2.5 → 2.4.6 View file →

		@@ -10,40 +10,10 @@
10	10	private $fallbackResponse;
11	11	private $productCardHtml;
12	12	private $word_handler;
13	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 $streaming_headers_sent = false; // Track if streaming headers have been sent
18	14
19		-/**
20		- * Setup streaming headers - call this right before actually streaming
21		- * This delays header setup to allow actions/forms to return JSON responses
22		- */
23		-private function setup_streaming_headers() {
24		- if ($this->streaming_headers_sent || headers_sent()) {
25		- return false;
26		- }
27	15
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		- $this->streaming_headers_sent = true;
43		- return true;
44		-}
45		-
46	16	/**
47	17	* Class constructor
48	18	*/
49	19	public function __construct() {
		@@ -111,28 +81,13 @@
111	81	// Add chat mode checking actions
112	82	add_action('wp_ajax_mxchat_get_current_chat_mode', array($this, 'mxchat_get_current_chat_mode'));
113	83	add_action('wp_ajax_nopriv_mxchat_get_current_chat_mode', array($this, 'mxchat_get_current_chat_mode'));
114	84
115		- // Nonce refresh for page-cache compatibility (WP Rocket, LiteSpeed, etc.)
116		- add_action('wp_ajax_mxchat_refresh_nonce', array($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	85	add_filter('mxchat_check_actions_only', array($this, 'check_actions_for_addons'), 10, 4);
123	86
124	87
125	88	}
126	89
127		-/**
128		- * Return a fresh nonce so cached pages can replace the stale one.
129		- */
130		-public function mxchat_refresh_nonce() {
131		- nocache_headers();
132		- wp_send_json_success(array('nonce' => wp_create_nonce('mxchat_chat_nonce')));
133		-}
134		-
135	90	// In your core plugin's check_actions_for_addons method:
136	91	public function check_actions_for_addons($default, $message, $user_id, $session_id) {
137	92	//error_log('MxChat Core: check_actions_for_addons called with message: ' . $message);
138	93
		@@ -155,22 +110,8 @@
155	110	wp_die();
156	111	}
157	112
158	113	$session_id = sanitize_text_field($_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	114	$history = get_option("mxchat_history_{$session_id}", []); // Retrieve stored history
174	115	$chat_mode = get_option("mxchat_mode_{$session_id}", 'ai'); // Get current chat mode
175	116
176	117	if (empty($history)) {
		@@ -187,25 +128,11 @@
187	128	'chat_mode' => $chat_mode
188	129	]);
189	130	wp_die();
190	131	}
191		-private function mxchat_fetch_conversation_history_for_ai($session_id, $session_start_timestamp = 0) {
	132	+
	133	+private function mxchat_fetch_conversation_history_for_ai($session_id) {
192	134	$history = get_option("mxchat_history_{$session_id}", []);
193		-
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']) && $options['chat_persistence_toggle'] === 'on';
197		-
198		- // Filter history when persistence is OFF to match what the user sees
199		- if (!$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		- }
207		-
208	135	$formatted_history = [];
209	136
210	137	// Adjusted for code-heavy conversations
211	138	$max_tokens = 120000; // Context window size
		@@ -303,15 +230,8 @@
303	230	'callback' => [$this, 'handle_slack_messages'],
304	231	'permission_callback' => [$this, 'verify_slack_request'],
305	232	]);
306	233
307		- // Telegram webhook endpoint
308		- register_rest_route('mxchat/v1', '/telegram-webhook', [
309		- 'methods' => 'POST',
310		- 'callback' => [$this, 'handle_telegram_webhook'],
311		- 'permission_callback' => [$this, 'verify_telegram_request'],
312		- ]);
313		-
314	234	//error_log(esc_html__('MxChat REST routes registered', 'mxchat'));
315	235	}
316	236
317	237	/**
		@@ -351,11 +271,10 @@
351	271	//error_log(esc_html__('Slack request timestamp too old', 'mxchat'));
352	272	return false;
353	273	}
354	274
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();
	275	+ // Get raw request body
	276	+ $request_body = file_get_contents('php://input');
358	277
359	278	// Create the signature base string
360	279	$sig_basestring = "v0:{$timestamp}:{$request_body}";
361	280
		@@ -364,43 +283,8 @@
364	283
365	284	// Compare signatures
366	285	return hash_equals($my_signature, $slack_signature);
367	286	}
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	287	public function mxchat_stream_events(WP_REST_Request $request) {
404	288	header('Content-Type: text/event-stream');
405	289	header('Cache-Control: no-cache');
406	290	header('Connection: keep-alive');
		@@ -434,9 +318,9 @@
434	318
435	319
436	320
437	321
438		-private function mxchat_save_chat_message($session_id, $role, $message, $originating_page = null, $rag_context = null) {
	322	+private function mxchat_save_chat_message($session_id, $role, $message, $originating_page = null) {
439	323	global $wpdb;
440	324	$table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
441	325	//error_log("[DEBUG] mxchat_save_chat_message -> START for session_id: {$session_id}, role: {$role}");
442	326
		@@ -454,20 +338,8 @@
454	338	//error_log("[DEBUG] This is a NEW session - first message");
455	339	}
456	340	}
457	341
458		- // SECURITY FIX: Set session ownership for new sessions
459		- if ($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		-
470	342	// 1) Extract agent name if present
471	343	$agent_name = '';
472	344	if (preg_match('/^Agent: (.*?) - /', $message, $matches)) {
473	345	$agent_name = $matches[1];
		@@ -610,17 +482,9 @@
610	482	$insert_data['originating_page_title'] = $stored_originating['title'] ?? '';
611	483	}
612	484	}
613	485	}
614		-
615		- // Add RAG context if provided (for bot messages)
616		- if ($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		-
	486	+
623	487	$wpdb->insert($table_name, $insert_data);
624	488	//error_log("[DEBUG] mxchat_save_chat_message -> Inserted message into DB. row_id: {$wpdb->insert_id}, data: " . print_r($insert_data, true));
625	489
626	490	// 9) Send notification email if this is the first user message in a new session
		@@ -631,17 +495,11 @@
631	495	'ip' => $_SERVER['REMOTE_ADDR']
632	496	));
633	497	}
634	498
635		- // 10) Schedule delayed transcript email if enabled and message is from user
636		- if ($wpdb->insert_id && $role === 'user') {
637		- $this->schedule_delayed_transcript_email($session_id);
638		- }
639		-
640	499	//error_log("[DEBUG] mxchat_save_chat_message -> END for session_id: {$session_id}");
641	500	return $message_id;
642	501	}
643		-
644	502	private function send_new_chat_notification($session_id, $user_info = array()) {
645	503	$options = get_option('mxchat_transcripts_options');
646	504
647	505	// Check if notifications are enabled
		@@ -684,200 +542,12 @@
684	542	// Send email
685	543	return wp_mail($to, $subject, $message);
686	544	}
687	545
688		-/**
689		- * Schedule delayed transcript email for a session
690		- * Reschedules if a new user message is received
691		- */
692		-private function schedule_delayed_transcript_email($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 $result;
870		-}
871		-
872		-
873		-
874	546	public function mxchat_handle_save_email_and_response() {
875	547	//error_log('[DEBUG] ---------- mxchat_handle_save_email_and_response START ----------');
876	548	//error_log('DEBUG: POST data: ' . print_r($_POST, true));
877	549
878		- nocache_headers();
879		-
880	550	// Validate nonce
881	551	if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'mxchat_chat_nonce')) {
882	552	//error_log(esc_html__('[ERROR] Invalid nonce in mxchat_handle_save_email_and_response', 'mxchat'));
883	553	wp_send_json_error(['message' => esc_html__('Invalid nonce.', 'mxchat')]);
		@@ -889,9 +559,9 @@
889	559	$name = isset($_POST['name']) ? sanitize_text_field($_POST['name']) : '';
890	560
891	561	//error_log("[DEBUG] handle_save_email_and_response -> session_id: {$session_id}, email: {$email}, name: {$name}");
892	562
893		- if (empty($session_id) || $session_id === 'null' || empty($email)) {
	563	+ if (empty($session_id) || empty($email)) {
894	564	//error_log("[ERROR] Missing session_id or email: session_id={$session_id}, email={$email}");
895	565	wp_send_json_error(['message' => esc_html__('Session ID or email is missing.', 'mxchat')]);
896	566	wp_die();
897	567	}
		@@ -908,15 +578,15 @@
908	578	}
909	579
910	580	// 1) Always store email in wp_options
911	581	$email_option_key = "mxchat_email_{$session_id}";
912		- update_option($email_option_key, $email, 'no');
	582	+ update_option($email_option_key, $email);
913	583	//error_log("[DEBUG] handle_save_email_and_response -> updated option: {$email_option_key} => {$email}");
914	584
915	585	// Store name in wp_options if provided
916	586	if (!empty($name)) {
917	587	$name_option_key = "mxchat_name_{$session_id}";
918		- update_option($name_option_key, $name, 'no');
	588	+ update_option($name_option_key, $name);
919	589	//error_log("[DEBUG] handle_save_email_and_response -> updated option: {$name_option_key} => {$name}");
920	590	}
921	591
922	592	// 2) (Optional) Also store in DB if a row already exists
		@@ -960,10 +630,8 @@
960	630
961	631	public function mxchat_check_email_provided() {
962	632	//error_log('[DEBUG] ---------- mxchat_check_email_provided START ----------');
963	633
964		- nocache_headers();
965		-
966	634	if (!isset($_POST['nonce']) || !wp_verify_nonce($_POST['nonce'], 'mxchat_chat_nonce')) {
967	635	//error_log('[ERROR] Invalid nonce in mxchat_check_email_provided');
968	636	wp_send_json_error(['message' => esc_html__('Invalid nonce', 'mxchat')]);
969	637	}
		@@ -968,9 +636,9 @@
968	636	wp_send_json_error(['message' => esc_html__('Invalid nonce', 'mxchat')]);
969	637	}
970	638
971	639	$session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : '';
972		- if (empty($session_id) || $session_id === 'null') {
	640	+ if (empty($session_id)) {
973	641	//error_log('[ERROR] No session ID provided in mxchat_check_email_provided');
974	642	wp_send_json_error(['message' => esc_html__('No session ID provided', 'mxchat')]);
975	643	}
976	644
		@@ -1027,42 +695,15 @@
1027	695	wp_send_json_error(['message' => esc_html__('No email found', 'mxchat')]);
1028	696	}
1029	697	}
1030	698
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
1053		- ]);
1054		- }
1055		- wp_die();
1056		-}
1057		-
1058	699	public function mxchat_handle_chat_request() {
1059	700	global $wpdb;
1060	701
1061	702	// Debug: Log incoming bot_id
1062	703	$bot_id = isset($_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);
	704	+ error_log("=== MXCHAT DEBUG: Starting chat request ===");
	705	+ error_log("MXCHAT DEBUG: Bot ID received: " . $bot_id);
1065	706
1066	707	// Get bot-specific options
1067	708	$bot_options = $this->get_bot_options($bot_id);
1068	709	$current_options = !empty($bot_options) ? $bot_options : $this->options;
		@@ -1067,19 +708,29 @@
1067	708	$bot_options = $this->get_bot_options($bot_id);
1068	709	$current_options = !empty($bot_options) ? $bot_options : $this->options;
1069	710
1070	711	// 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'));
	712	+ $is_streaming = isset($_POST['action']) && $_POST['action'] === 'mxchat_stream_chat' &&
	713	+ isset($current_options['enable_streaming_toggle']) && $current_options['enable_streaming_toggle'] === 'on';
	714	+
	715	+ // Set streaming headers if needed
	716	+ if ($is_streaming) {
	717	+ // Disable output buffering
	718	+ while (ob_get_level()) {
	719	+ ob_end_flush(); // Changed from ob_end_clean()
	720	+ }
	721	+
	722	+ // Set headers for SSE
	723	+ header('Content-Type: text/event-stream');
	724	+ header('Cache-Control: no-cache');
	725	+ header('Connection: keep-alive');
	726	+ header('X-Accel-Buffering: no');
	727	+
	728	+ // Add these new lines:
	729	+ ob_implicit_flush(true);
	730	+ flush();
	731	+ }
1075	732
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	733	// Check if MX Chat Moderation is active
1083	734	if (class_exists('MX_Chat_Moderation')) {
1084	735	// Get user email and IP
1085	736	$user_email = '';
		@@ -1144,31 +795,13 @@
1144	795
1145	796	// Rest of your existing code...
1146	797	$session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : '';
1147	798
1148		- // Treat the literal strings 'null' / 'undefined' as missing too. Browser edge cases
1149		- // (Safari ITP, private mode, cross-origin iframes with partitioned storage) can cause
1150		- // the frontend FormData.append() to stringify a null session_id into the literal
1151		- // "null", which would otherwise pass empty() and pollute the transcripts table with
1152		- // ghost sessions that group every visitor's first message under one row.
1153		- if ($session_id === 'null' || $session_id === 'undefined') {
1154		- $session_id = '';
1155		- }
1156		-
1157	799	if (empty($session_id)) {
1158	800	wp_send_json_error(esc_html__('Session ID is missing.', 'mxchat'));
1159	801	wp_die();
1160	802	}
1161	803
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}", $current_user_identifier, 'no');
1169		- }
1170		-
1171	804	// Validate and sanitize the incoming message
1172	805	if (empty($_POST['message'])) {
1173	806	wp_send_json_error(esc_html__('No message received.', 'mxchat'));
1174	807	wp_die();
		@@ -1544,8 +1177,38 @@
1544	1177	}
1545	1178	}
1546	1179	}
1547	1180
	1181	+ // Check if there's an active recommendation flow session
	1182	+ $flow_state = get_option("mxchat_sr_flow_state_{$session_id}", array());
	1183	+ if (!empty($flow_state) && isset($flow_state['flow_id'])) {
	1184	+ // Create a dummy intent object that matches the original intent
	1185	+ $dummy_intent = new stdClass();
	1186	+ $dummy_intent->intent_label = 'Recommendation Flow ' . $flow_state['flow_id'];
	1187	+ $dummy_intent->phrases = ''; // Empty phrases to avoid matching the original trigger
	1188	+
	1189	+ // Call the recommendation flow handler directly
	1190	+ $response_data = apply_filters('mxchat_sr_recommendation_flow', false, $message, $user_id, $session_id, $dummy_intent);
	1191	+
	1192	+ // If the handler returned a response, send it
	1193	+ if (is_array($response_data) && (isset($response_data['text']) || isset($response_data['html']))) {
	1194	+ // Save the bot's response to the chat history
	1195	+ if (!empty($response_data['text'])) {
	1196	+ $this->mxchat_save_chat_message($session_id, 'bot', $response_data['text']);
	1197	+ }
	1198	+ if (!empty($response_data['html'])) {
	1199	+ $this->mxchat_save_chat_message($session_id, 'bot', $response_data['html']);
	1200	+ }
	1201	+
	1202	+ if ($testing_data !== null) {
	1203	+ $response_data['testing_data'] = $testing_data;
	1204	+ }
	1205	+
	1206	+ // Send the response
	1207	+ wp_send_json($response_data);
	1208	+ wp_die();
	1209	+ }
	1210	+ }
1548	1211
1549	1212	// Step 2: Detect intent and handle intent-based responses
1550	1213	$intent_result = $this->mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id);
1551	1214
		@@ -1564,46 +1227,58 @@
1564	1227	'text' => $intent_result['text'] ?? '',
1565	1228	'html' => $intent_result['html'] ?? '',
1566	1229	'session_id' => $session_id
1567	1230	];
1568		-
1569		- // IMPORTANT: Include chat_mode if present (for WhatsApp, Slack, etc.)
1570		- if (isset($intent_result['chat_mode'])) {
1571		- $response_data['chat_mode'] = $intent_result['chat_mode'];
1572		- }
1573		-
	1231	+
1574	1232	if ($testing_data !== null) {
1575	1233	$response_data['testing_data'] = $testing_data;
1576	1234	}
1577		-
	1235	+
	1236	+ // Clear streaming headers if they were set
	1237	+ if ($is_streaming) {
	1238	+ header_remove('Content-Type');
	1239	+ header_remove('Cache-Control');
	1240	+ header_remove('Connection');
	1241	+ header_remove('X-Accel-Buffering');
	1242	+ header('Content-Type: application/json');
	1243	+ }
	1244	+
1578	1245	wp_send_json($response_data);
1579	1246	wp_die();
1580	1247	} else if ($intent_result === true && (!empty($this->fallbackResponse['text']) || !empty($this->fallbackResponse['html']))) {
1581	1248	// Intent returned true and set fallbackResponse
1582		-
1583		- // SAVE TO TRANSCRIPT
	1249	+
	1250	+ // SAVE TO TRANSCRIPT FIRST
1584	1251	if (!empty($this->fallbackResponse['text'])) {
1585	1252	$this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['text']);
1586	1253	}
1587		- // Save action HTML (product cards, featured products, etc.) so it renders in transcripts
1588	1254	if (!empty($this->fallbackResponse['html'])) {
1589	1255	$this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['html']);
1590	1256	}
1591		-
	1257	+
1592	1258	$response_data = [
1593	1259	'text' => $this->fallbackResponse['text'] ?? '',
1594	1260	'html' => $this->fallbackResponse['html'] ?? '',
1595	1261	'session_id' => $session_id
1596	1262	];
1597		-
	1263	+
1598	1264	if (isset($this->fallbackResponse['chat_mode'])) {
1599	1265	$response_data['chat_mode'] = $this->fallbackResponse['chat_mode'];
1600	1266	}
1601		-
	1267	+
1602	1268	if ($testing_data !== null) {
1603	1269	$response_data['testing_data'] = $testing_data;
1604	1270	}
1605		-
	1271	+
	1272	+ // Clear streaming headers if they were set
	1273	+ if ($is_streaming) {
	1274	+ header_remove('Content-Type');
	1275	+ header_remove('Cache-Control');
	1276	+ header_remove('Connection');
	1277	+ header_remove('X-Accel-Buffering');
	1278	+ header('Content-Type: application/json');
	1279	+ }
	1280	+
1606	1281	wp_send_json($response_data);
1607	1282	wp_die();
1608	1283	}
1609	1284	}
		@@ -1608,13 +1283,11 @@
1608	1283	}
1609	1284	}
1610	1285
1611	1286	// If we get here, no intent matched OR the intent didn't provide a usable response
1612		-
	1287	+
1613	1288	// 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);
	1289	+ $conversation_history = $this->mxchat_fetch_conversation_history_for_ai($session_id);
1617	1290	$this->mxchat_increment_chat_count();
1618	1291
1619	1292	// Generate embedding for the user's query - USE BOT-SPECIFIC API KEY
1620	1293	$api_key = $current_options['api_key'] ?? $this->options['api_key'];
		@@ -1623,50 +1296,22 @@
1623	1296	// Check if the embedding generation returned an error
1624	1297	if (is_array($user_message_embedding) && isset($user_message_embedding['error'])) {
1625	1298	$error_message = $user_message_embedding['error'];
1626	1299	$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		- }
	1300	+
	1301	+ wp_send_json_error([
	1302	+ 'error_message' => $error_message,
	1303	+ 'error_code' => $error_code
	1304	+ ]);
1645	1305	wp_die();
1646	1306	}
1647		-
	1307	+
1648	1308	// Check if the embedding is valid
1649	1309	if (!is_array($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		- }
	1310	+ wp_send_json_error([
	1311	+ 'error_message' => esc_html__('Unable to process your message. The embedding service is not responding correctly.', 'mxchat'),
	1312	+ 'error_code' => 'invalid_embedding'
	1313	+ ]);
1669	1314	wp_die();
1670	1315	}
1671	1316
1672	1317	// Build context with both knowledge base and PDF content if available
		@@ -1692,71 +1337,26 @@
1692	1337	$context_content .= "Page Content: " . $page_context['content'] . "\n";
1693	1338	$context_content .= "===== END CURRENT PAGE CONTEXT =====\n\n";
1694	1339	}
1695	1340
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;
	1341	+ // Get relevant content from knowledge base - PASS BOT_ID
	1342	+ $relevant_content = $this->mxchat_find_relevant_content($user_message_embedding, $bot_id);
1703	1343
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($system_instruction_urls[0]) . " URLs from system instructions");
1722		- }
	1344	+ // ===== CAPTURE REAL SIMILARITY DATA FOR ADMINS =====
	1345	+ if ($testing_data !== null && $this->last_similarity_analysis !== null) {
	1346	+ // Update testing data with the REAL similarity analysis
	1347	+ $testing_data['top_matches'] = $this->last_similarity_analysis['top_matches'];
	1348	+ $testing_data['total_documents_checked'] = $this->last_similarity_analysis['total_checked'] ?? 0;
	1349	+ $testing_data['knowledge_base_type'] = $this->last_similarity_analysis['knowledge_base_type'];
1723	1350	}
	1351	+ // ===== END SIMILARITY DATA CAPTURE =====
1724	1352
1725		-// ===== CAPTURE REAL SIMILARITY DATA FOR ADMINS =====
1726		-if ($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($this->current_valid_urls) . " approved URLs to testing data");
1740		-}
1741		-
1742	1353	if (!empty($relevant_content)) {
1743	1354	$context_content .= "===== OFFICIAL KNOWLEDGE DATABASE CONTENT =====\n" . $relevant_content . "\n===== END OF OFFICIAL KNOWLEDGE DATABASE CONTENT =====\n\n";
1744	1355	} else {
1745	1356	$context_content .= "===== NO RELEVANT CONTENT FOUND IN KNOWLEDGE DATABASE =====\n";
1746	1357	}
1747		-
1748		- // NEW: Add approved URLs list to context for AI (only if citation links enabled)
1749		- if ($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		-
	1358	+
1759	1359	// Check for and include PDF content
1760	1360	$pdf_url = get_transient('mxchat_pdf_url_' . $session_id);
1761	1361	$pdf_embeddings = get_transient('mxchat_pdf_embeddings_' . $session_id);
1762	1362	$pdf_filename = get_transient('mxchat_pdf_filename_' . $session_id);
		@@ -1788,9 +1388,9 @@
1788	1388
1789	1389	$context_content = apply_filters('mxchat_prepare_context', $context_content, $session_id);
1790	1390
1791	1391	// 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';
	1392	+ $selected_model = isset($current_options['model']) ? $current_options['model'] : 'gpt-4o';
1793	1393
1794	1394	$response = $this->mxchat_generate_response(
1795	1395	$context_content,
1796	1396	$current_options['api_key'] ?? $this->options['api_key'],
		@@ -1797,14 +1397,13 @@
1797	1397	$current_options['xai_api_key'] ?? $this->options['xai_api_key'],
1798	1398	$current_options['claude_api_key'] ?? $this->options['claude_api_key'],
1799	1399	$current_options['deepseek_api_key'] ?? $this->options['deepseek_api_key'],
1800	1400	$current_options['gemini_api_key'] ?? $this->options['gemini_api_key'],
1801		- $current_options['openrouter_api_key'] ?? $this->options['openrouter_api_key'],
1802	1401	$conversation_history,
1803	1402	$is_streaming,
1804	1403	$session_id,
1805	1404	$testing_data,
1806		- $selected_model
	1405	+ $selected_model // ADD THIS LINE
1807	1406	);
1808	1407
1809	1408	// Handle streaming vs non-streaming responses
1810	1409	if ($is_streaming) {
		@@ -1812,27 +1411,11 @@
1812	1411	if ($response === true) {
1813	1412	wp_die();
1814	1413	}
1815	1414	// If we get here, streaming fell back to regular response, continue
1816		- // But if there's an error, we need to send it as SSE format since headers are already set
1817		- if (is_array($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' => $error_message
1827		- ]) . "\n\n";
1828		- echo "data: [DONE]\n\n";
1829		- flush();
1830		- wp_die();
1831		- }
1832	1415	}
1833		-
1834		- // Check if the response is an error array (non-streaming mode)
	1416	+
	1417	+ // Check if the response is an error array
1835	1418	if (is_array($response) && isset($response['error'])) {
1836	1419	wp_send_json_error([
1837	1420	'error_message' => $response['error'],
1838	1421	'error_code' => $response['error_code'] ?? 'api_error'
		@@ -1839,51 +1422,11 @@
1839	1422	]);
1840	1423	wp_die();
1841	1424	}
1842	1425
1843		- // DEBUG: Check what we have
1844		- //error_log("=== BEFORE URL VALIDATION ===");
1845		- //error_log("current_valid_urls is empty? " . (empty($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 =====
	1426	+ // If we get here, the response is valid text
	1427	+ $this->mxchat_save_chat_message($session_id, 'bot', $response);
1857	1428
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($this->last_action_analysis);
1862		-
1863		- if ($has_rag_data || $has_action_data) {
1864		- $rag_context_for_storage = [];
1865		-
1866		- // Add RAG/source data if available
1867		- if ($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'] = $this->last_similarity_analysis['total_chunks_used'] ?? 0;
1875		- }
1876		-
1877		- // Add action analysis data if available
1878		- if ($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, $rag_context_for_storage);
1885		-
1886	1429	// Step 5: Save additional content if available
1887	1430	if (!empty($this->productCardHtml)) {
1888	1431	$this->mxchat_save_chat_message($session_id, 'bot', $this->productCardHtml);
1889	1432	}
		@@ -1892,13 +1435,8 @@
1892	1435	$this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['html']);
1893	1436	}
1894	1437
1895	1438	// Step 6: Return the response
1896		- // DEBUG: Check if newlines exist in the response
1897		- //error_log("=== MXCHAT NON-STREAMING RESPONSE DEBUG ===");
1898		- //error_log("Response has newlines: " . (strpos($response, "\n") !== false ? 'YES' : 'NO'));
1899		- //error_log("Response first 500 chars: " . substr($response, 0, 500));
1900		-
1901	1439	$response_data = [
1902	1440	'text' => $response,
1903	1441	'html' => !empty($this->productCardHtml) ? $this->productCardHtml : ($this->fallbackResponse['html'] ?? ''),
1904	1442	'session_id' => $session_id
		@@ -1903,18 +1441,8 @@
1903	1441	'html' => !empty($this->productCardHtml) ? $this->productCardHtml : ($this->fallbackResponse['html'] ?? ''),
1904	1442	'session_id' => $session_id
1905	1443	];
1906	1444
1907		- // Include vectorstore error info for admin debugging (only visible to admins via testing_data)
1908		- if (!empty($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'] = $this->last_vectorstore_error;
1915		- }
1916		-
1917	1445	// Always add testing data for admins (no toggle needed)
1918	1446	if ($testing_data !== null) {
1919	1447	$response_data['testing_data'] = $testing_data;
1920	1448	}
		@@ -1922,8 +1450,9 @@
1922	1450	wp_send_json($response_data);
1923	1451	wp_die();
1924	1452	}
1925	1453
	1454	+
1926	1455	/**
1927	1456	* Get bot-specific options for multi-bot functionality
1928	1457	* Falls back to default options if bot_id is 'default' or multi-bot add-on is not active
1929	1458	*/
		@@ -1928,12 +1457,12 @@
1928	1457	* Falls back to default options if bot_id is 'default' or multi-bot add-on is not active
1929	1458	*/
1930	1459	// Also debug the bot options retrieval
1931	1460	private function get_bot_options($bot_id = 'default') {
1932		- //error_log("MXCHAT DEBUG: get_bot_options called for bot: " . $bot_id);
	1461	+ error_log("MXCHAT DEBUG: get_bot_options called for bot: " . $bot_id);
1933	1462
1934	1463	if ($bot_id === 'default' || !class_exists('MxChat_Multi_Bot_Manager')) {
1935		- //error_log("MXCHAT DEBUG: Using default options (no multi-bot or bot is 'default')");
	1464	+ error_log("MXCHAT DEBUG: Using default options (no multi-bot or bot is 'default')");
1936	1465	return array();
1937	1466	}
1938	1467
1939	1468	$bot_options = apply_filters('mxchat_get_bot_options', array(), $bot_id);
		@@ -1938,11 +1467,11 @@
1938	1467
1939	1468	$bot_options = apply_filters('mxchat_get_bot_options', array(), $bot_id);
1940	1469
1941	1470	if (!empty($bot_options)) {
1942		- //error_log("MXCHAT DEBUG: Got bot-specific options from filter");
	1471	+ error_log("MXCHAT DEBUG: Got bot-specific options from filter");
1943	1472	if (isset($bot_options['similarity_threshold'])) {
1944		- //error_log(" - similarity_threshold: " . $bot_options['similarity_threshold']);
	1473	+ error_log(" - similarity_threshold: " . $bot_options['similarity_threshold']);
1945	1474	}
1946	1475	}
1947	1476
1948	1477	return is_array($bot_options) ? $bot_options : array();
		@@ -1953,13 +1482,13 @@
1953	1482	* Used in the knowledge retrieval functions
1954	1483	*/
1955	1484	// Also add debugging to your get_bot_pinecone_config function
1956	1485	private function get_bot_pinecone_config($bot_id = 'default') {
1957		- //error_log("MXCHAT DEBUG: get_bot_pinecone_config called for bot: " . $bot_id);
	1486	+ error_log("MXCHAT DEBUG: get_bot_pinecone_config called for bot: " . $bot_id);
1958	1487
1959	1488	// If default bot or multi-bot add-on not active, use default Pinecone config
1960	1489	if ($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')");
	1490	+ error_log("MXCHAT DEBUG: Using default Pinecone config (no multi-bot or bot is 'default')");
1962	1491	$addon_options = get_option('mxchat_pinecone_addon_options', array());
1963	1492	$config = array(
1964	1493	'use_pinecone' => (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1'),
1965	1494	'api_key' => $addon_options['mxchat_pinecone_api_key'] ?? '',
		@@ -1965,24 +1494,24 @@
1965	1494	'api_key' => $addon_options['mxchat_pinecone_api_key'] ?? '',
1966	1495	'host' => $addon_options['mxchat_pinecone_host'] ?? '',
1967	1496	'namespace' => $addon_options['mxchat_pinecone_namespace'] ?? ''
1968	1497	);
1969		- //error_log("MXCHAT DEBUG: Default config - use_pinecone: " . ($config['use_pinecone'] ? 'true' : 'false'));
	1498	+ error_log("MXCHAT DEBUG: Default config - use_pinecone: " . ($config['use_pinecone'] ? 'true' : 'false'));
1970	1499	return $config;
1971	1500	}
1972	1501
1973		- //error_log("MXCHAT DEBUG: Calling filter 'mxchat_get_bot_pinecone_config' for bot: " . $bot_id);
	1502	+ error_log("MXCHAT DEBUG: Calling filter 'mxchat_get_bot_pinecone_config' for bot: " . $bot_id);
1974	1503
1975	1504	// Hook for multi-bot add-on to provide bot-specific Pinecone config
1976	1505	$bot_pinecone_config = apply_filters('mxchat_get_bot_pinecone_config', array(), $bot_id);
1977	1506
1978	1507	if (!empty($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'));
	1508	+ error_log("MXCHAT DEBUG: Got bot-specific config from filter");
	1509	+ error_log(" - use_pinecone: " . (isset($bot_pinecone_config['use_pinecone']) ? ($bot_pinecone_config['use_pinecone'] ? 'true' : 'false') : 'not set'));
	1510	+ error_log(" - host: " . ($bot_pinecone_config['host'] ?? 'not set'));
	1511	+ error_log(" - namespace: " . ($bot_pinecone_config['namespace'] ?? 'not set'));
1983	1512	} else {
1984		- //error_log("MXCHAT DEBUG: Filter returned empty config!");
	1513	+ error_log("MXCHAT DEBUG: Filter returned empty config!");
1985	1514	}
1986	1515
1987	1516	return is_array($bot_pinecone_config) ? $bot_pinecone_config : array();
1988	1517	}
		@@ -1992,63 +1521,35 @@
1992	1521	private function mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id) {
1993	1522	global $wpdb;
1994	1523	$chat_mode = get_option("mxchat_mode_{$session_id}", 'ai');
1995	1524
1996		- // Get the current bot_id
	1525	+ // NEW: Get the current bot_id
1997	1526	$current_bot_id = $this->get_current_bot_id($session_id);
1998	1527
1999	1528	// Generate the user embedding
2000	1529	$user_embedding = $this->mxchat_generate_embedding($message, $this->options['api_key']);
2001		-
	1530	+
2002	1531	// Check if embedding generation returned an error
2003	1532	if (is_array($user_embedding) && isset($user_embedding['error'])) {
2004	1533	$error_message = $user_embedding['error'];
2005	1534	$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		- }
	1535	+
	1536	+ wp_send_json_error([
	1537	+ 'error_message' => $error_message,
	1538	+ 'error_code' => $error_code
	1539	+ ]);
2024	1540	wp_die();
2025	1541	}
2026		-
	1542	+
2027	1543	// Check if embedding is valid
2028	1544	if (!is_array($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		- }
	1545	+ wp_send_json_error([
	1546	+ 'error_message' => esc_html__('Unable to process your message. The embedding service is not responding correctly.', 'mxchat'),
	1547	+ 'error_code' => 'invalid_embedding'
	1548	+ ]);
2048	1549	wp_die();
2049	1550	}
2050		-
	1551	+
2051	1552	// Fetch intents from the database
2052	1553	$table_name = $wpdb->prefix . 'mxchat_intents';
2053	1554	if ($chat_mode === 'agent') {
2054	1555	$query = $wpdb->prepare(
		@@ -2058,29 +1559,19 @@
2058	1559	$intents = $wpdb->get_results($query);
2059	1560	} else {
2060	1561	$intents = $wpdb->get_results("SELECT * FROM $table_name WHERE enabled = 1 OR enabled IS NULL");
2061	1562	}
2062		-
	1563	+
2063	1564	if (empty($intents)) {
2064	1565	return false;
2065	1566	}
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		-
	1567	+
2077	1568	$highest_similarity = -INF;
2078	1569	$matched_intent = null;
2079		-
	1570	+
2080	1571	// Array to store action analysis for testing panel
2081	1572	$action_analysis = [];
2082		-
	1573	+
2083	1574	foreach ($intents as $intent) {
2084	1575	// Additional check for enabled state
2085	1576	$is_enabled = isset($intent->enabled) ? (bool)$intent->enabled : true;
2086	1577	if (!$is_enabled) {
		@@ -2085,56 +1576,26 @@
2085	1576	$is_enabled = isset($intent->enabled) ? (bool)$intent->enabled : true;
2086	1577	if (!$is_enabled) {
2087	1578	continue;
2088	1579	}
2089		-
2090		- // Check if this action is enabled for the current bot
	1580	+
	1581	+ // NEW: Check if this action is enabled for the current bot
2091	1582	if (!$this->is_action_enabled_for_bot($intent, $current_bot_id)) {
2092	1583	continue;
2093	1584	}
2094		-
2095		- $best_similarity = -INF;
2096		- $matched_phrase_text = '';
2097		-
2098		- // Check legacy embedding vector (existing behavior)
	1585	+
2099	1586	$intent_embedding_serialized = $intent->embedding_vector;
2100	1587	$intent_embedding = $intent_embedding_serialized
2101	1588	? unserialize($intent_embedding_serialized, ['allowed_classes' => false])
2102	1589	: 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) {
	1590	+
	1591	+ if (!is_array($intent_embedding)) {
2131	1592	continue;
2132	1593	}
2133		-
2134		- $similarity = $best_similarity;
	1594	+
	1595	+ $similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $intent_embedding);
2135	1596	$intent_threshold = isset($intent->similarity_threshold) ? $intent->similarity_threshold : 0.85;
2136		-
	1597	+
2137	1598	// Store action analysis data for testing panel
2138	1599	$action_analysis[] = [
2139	1600	'intent_label' => $intent->intent_label,
2140	1601	'callback_function' => $intent->callback_function,
		@@ -2142,12 +1603,11 @@
2142	1603	'similarity_percentage' => round($similarity * 100, 2),
2143	1604	'threshold' => $intent_threshold,
2144	1605	'threshold_percentage' => round($intent_threshold * 100, 2),
2145	1606	'above_threshold' => $similarity >= $intent_threshold,
2146		- 'matched_phrase' => $matched_phrase_text,
2147	1607	'triggered' => false // Will be updated below if this intent is triggered
2148	1608	];
2149		-
	1609	+
2150	1610	if ($similarity >= $intent_threshold && $similarity > $highest_similarity) {
2151	1611	$highest_similarity = $similarity;
2152	1612	$matched_intent = $intent;
2153	1613	}
		@@ -2218,22 +1678,16 @@
2218	1678	// If enabled_bots column doesn't exist or is null, assume it's enabled for all bots (backward compatibility)
2219	1679	if (!isset($intent->enabled_bots) || empty($intent->enabled_bots)) {
2220	1680	return true;
2221	1681	}
2222		-
	1682	+
2223	1683	$enabled_bots = json_decode($intent->enabled_bots, true);
2224		-
	1684	+
2225	1685	// If JSON decode fails or returns empty array, assume enabled for all (backward compatibility)
2226	1686	if (!is_array($enabled_bots) || empty($enabled_bots)) {
2227	1687	return true;
2228	1688	}
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		- $bot_id = 'default';
2234		- }
2235		-
	1689	+
2236	1690	// Check if the current bot is in the enabled bots list
2237	1691	return in_array($bot_id, $enabled_bots);
2238	1692	}
2239	1693
		@@ -2272,17 +1726,17 @@
2272	1726
2273	1727	public function mxchat_generate_image($message, $user_id, $session_id) {
2274	1728	//error_log("Starting image generation for message: " . $message);
2275	1729
2276		- // Prepare a prompt for OpenAI image generation
	1730	+ // Prepare a prompt for DALL-E
2277	1731	$prompt = esc_html__('Create an image of ', 'mxchat') . sanitize_text_field($message);
2278		-
	1732	+
2279	1733	// Use the existing OpenAI API key
2280	1734	$openai_api_key = sanitize_text_field($this->options['api_key']);
2281		-
2282		- // Call OpenAI GPT Image to generate an image
2283		- $image_response = $this->mxchat_generate_openai_image($prompt, $openai_api_key);
2284	1735
	1736	+ // Call DALL-E to generate an image
	1737	+ $image_response = $this->mxchat_generate_dalle_image($prompt, $openai_api_key);
	1738	+
2285	1739	// Check if the response contains an image URL
2286	1740	if (isset($image_response['imageUrl'])) {
2287	1741	$image_url = esc_url_raw($image_response['imageUrl']);
2288	1742
		@@ -2325,103 +1779,24 @@
2325	1779	// Return the response directly instead of relying on the property
2326	1780	return $this->fallbackResponse;
2327	1781	}
2328	1782	}
2329		-
2330		-public function mxchat_generate_gemini_image($message, $user_id, $session_id) {
2331		- $prompt = esc_html__('Create an image of ', 'mxchat') . sanitize_text_field($message);
2332		-
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 $this->fallbackResponse;
2370		- }
2371		-}
2372		-
2373		-private function mxchat_save_generated_image($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', $timeout = 60) {
	1783	+private function mxchat_generate_dalle_image($prompt, $api_key, $model = 'dall-e-3', $timeout = 60) {
2407	1784	$api_url = 'https://api.openai.com/v1/images/generations';
2408	1785	$body = json_encode([
2409		- 'prompt' => sanitize_text_field($prompt),
2410		- 'n' => 1,
2411		- 'size' => '1024x1024',
2412		- 'quality' => 'medium',
2413		- 'output_format' => 'png',
2414		- 'model' => sanitize_text_field($model),
	1786	+ 'prompt' => sanitize_text_field($prompt),
	1787	+ 'n' => 1,
	1788	+ 'size' => '1024x1024',
	1789	+ 'model' => sanitize_text_field($model),
2415	1790	]);
2416	1791
2417	1792	$args = [
2418		- 'body' => $body,
	1793	+ 'body' => $body,
2419	1794	'headers' => [
2420		- 'Content-Type' => 'application/json',
	1795	+ 'Content-Type' => 'application/json',
2421	1796	'Authorization' => 'Bearer ' . sanitize_text_field($api_key),
2422	1797	],
2423		- 'method' => 'POST',
	1798	+ 'method' => 'POST',
2424	1799	'timeout' => absint($timeout),
2425	1800	];
2426	1801
2427	1802	$response = wp_remote_post($api_url, $args);
		@@ -2426,67 +1801,22 @@
2426	1801
2427	1802	$response = wp_remote_post($api_url, $args);
2428	1803
2429	1804	if (is_wp_error($response)) {
	1805	+ //error_log("DALL-E request failed: " . $response->get_error_message());
2430	1806	return ['error' => esc_html__('Error generating image: ', 'mxchat') . $response->get_error_message()];
2431	1807	}
2432	1808
2433	1809	$response_body = json_decode(wp_remote_retrieve_body($response), true);
2434	1810
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' => $saved_url];
	1811	+ if (isset($response_body['data'][0]['url'])) {
	1812	+ return ['imageUrl' => esc_url_raw($response_body['data'][0]['url'])];
2442	1813	} else {
	1814	+ //error_log("DALL-E response error: " . wp_remote_retrieve_body($response));
2443	1815	return ['error' => esc_html__('Failed to generate image.', 'mxchat')];
2444	1816	}
2445	1817	}
2446	1818
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	1819	/**
2490	1820	* Handle web search requests.
2491	1821	*
2492	1822	* Sends the refined search query to the Brave Search API and uses the
		@@ -2535,10 +1865,10 @@
2535	1865	$transient_key = 'mxchat_search_' . md5($refined_search_query);
2536	1866	$results = get_transient($transient_key);
2537	1867
2538	1868	if (false === $results) {
2539		- // SECURITY FIX: Changed to wp_safe_remote_get
2540		- $response = wp_safe_remote_get(
	1869	+ // Fetch new results from the Brave Search API
	1870	+ $response = wp_remote_get(
2541	1871	$api_url,
2542	1872	array(
2543	1873	'headers' => array(
2544	1874	'Accept' => 'application/json',
		@@ -2677,10 +2007,9 @@
2677	2007	],
2678	2008	'timeout' => 10,
2679	2009	];
2680	2010
2681		- // SECURITY FIX: Changed to wp_safe_remote_get
2682		- $response = wp_safe_remote_get($api_url, $args);
	2011	+ $response = wp_remote_get($api_url, $args);
2683	2012
2684	2013	if (is_wp_error($response)) {
2685	2014	return array(
2686	2015	'text' => __("I'm sorry, I couldn't retrieve any images based on your request.", 'mxchat'),
		@@ -2753,9 +2082,9 @@
2753	2082	$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	2083
2755	2084	// Get options and determine the selected model
2756	2085	$options = $this->options ?? get_option('mxchat_options');
2757		- $selected_model = isset($options['model']) ? $options['model'] : 'gpt-5.1-chat-latest';
	2086	+ $selected_model = isset($options['model']) ? $options['model'] : 'gpt-4o';
2758	2087
2759	2088	// Extract model prefix to determine the provider
2760	2089	$model_parts = explode('-', $selected_model);
2761	2090	$provider = strtolower($model_parts[0]);
		@@ -2803,9 +2132,9 @@
2803	2132
2804	2133	/**
2805	2134	* Interpret query using OpenAI models
2806	2135	*/
2807		-private function interpret_query_with_openai($user_query, $system_prompt, $api_key, $model = 'gpt-5.1-chat-latest') {
	2136	+private function interpret_query_with_openai($user_query, $system_prompt, $api_key, $model = 'gpt-4o') {
2808	2137	$url = 'https://api.openai.com/v1/chat/completions';
2809	2138	$args = [
2810	2139	'headers' => [
2811	2140	'Authorization' => 'Bearer ' . $api_key,
		@@ -2876,13 +2205,13 @@
2876	2205	/**
2877	2206	* Interpret query using Gemini models
2878	2207	*/
2879	2208	private function interpret_query_with_gemini($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';
2882		-
2883		- $url = "https://generativelanguage.googleapis.com/{$api_version}/models/{$model}:generateContent?key=" . urlencode($api_key);
	2209	+ // Strip "gemini-" prefix for the API
	2210	+ $model_version = str_replace('gemini-', '', $model);
2884	2211
	2212	+ $url = "https://generativelanguage.googleapis.com/v1/models/$model_version:generateContent?key=" . urlencode($api_key);
	2213	+
2885	2214	$args = [
2886	2215	'headers' => [
2887	2216	'Content-Type' => 'application/json',
2888	2217	],
		@@ -3078,9 +2407,9 @@
3078	2407	}
3079	2408
3080	2409
3081	2410	/**
3082		- * Enhanced fetch_and_split_pdf_pages with SSRF protection
	2411	+ * Enhanced fetch_and_split_pdf_pages with detailed debugging
3083	2412	*/
3084	2413	private function fetch_and_split_pdf_pages($pdf_source, $max_pages) {
3085	2414	// CLEAR DEBUG LOGGING
3086	2415	//error_log("=== MXCHAT PDF PROCESSING START ===");
		@@ -3135,19 +2464,10 @@
3135	2464	// (I'll include the key parts with debug logging)
3136	2465
3137	2466	if (filter_var($pdf_source, FILTER_VALIDATE_URL)) {
3138	2467	//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");
3143		- return false;
3144		- }
3145		-
3146	2468	$temp_file = wp_tempnam($pdf_source);
3147		-
3148		- // SECURITY FIX: Changed from wp_remote_get to wp_safe_remote_get
3149		- $response = wp_safe_remote_get($pdf_source, [
	2469	+ $response = wp_remote_get($pdf_source, [
3150	2470	'timeout' => 60,
3151	2471	'headers' => ['User-Agent' => 'MxChat PDF Processor']
3152	2472	]);
3153	2473
		@@ -3156,14 +2476,9 @@
3156	2476	//error_log("❌ BASIC PROCESSING: Failed to download PDF: " . $error_message);
3157	2477	return false;
3158	2478	}
3159	2479
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($response), FS_CHMOD_FILE);
	2480	+ file_put_contents($temp_file, wp_remote_retrieve_body($response));
3166	2481	//error_log("✅ PDF downloaded successfully");
3167	2482	} else {
3168	2483	$temp_file = $pdf_source;
3169	2484	//error_log("Using local PDF file: " . $temp_file);
		@@ -3170,9 +2485,8 @@
3170	2485	}
3171	2486
3172	2487	// Parse PDF
3173	2488	//error_log("Parsing PDF with basic parser...");
3174		- mxchat_load_pdf_parser();
3175	2489	$parser = new \Smalot\PdfParser\Parser();
3176	2490	$pdf = $parser->parseFile($temp_file);
3177	2491	$pages = $pdf->getPages();
3178	2492
		@@ -3235,33 +2549,8 @@
3235	2549	return false;
3236	2550	}
3237	2551	}
3238	2552
3239		-
3240		-/**
3241		- * Validate PDF URL for security
3242		- * Prevents SSRF attacks by blocking dangerous URLs
3243		- */
3244		-
3245		-private function mxchat_is_safe_pdf_url($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		- return false;
3252		- }
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		-}
3262		-
3263		-
3264	2553	private function mxchat_clean_text($text) {
3265	2554	// Remove excessive whitespace
3266	2555	$text = preg_replace('/\s+/', ' ', $text);
3267	2556
		@@ -3300,10 +2589,9 @@
3300	2589	}
3301	2590
3302	2591	return [];
3303	2592	}
3304		-
3305		-
	2593	+// Add this to your class
3306	2594	public function handle_pdf_upload() {
3307	2595	check_ajax_referer('mxchat_chat_nonce', 'nonce');
3308	2596
3309	2597	if (!isset($_FILES['pdf_file']) || !isset($_POST['session_id'])) {
		@@ -3310,29 +2598,12 @@
3310	2598	wp_send_json_error(esc_html__('Missing required parameters.', 'mxchat'));
3311	2599	return;
3312	2600	}
3313	2601
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	2602	$file = $_FILES['pdf_file'];
3324	2603	$session_id = sanitize_text_field($_POST['session_id']);
3325	2604	$original_filename = sanitize_text_field($file['name']);
3326	2605
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	2606	$file_type = wp_check_filetype($file['name'], ['pdf' => 'application/pdf']);
3336	2607	if ($file_type['type'] !== 'application/pdf') {
3337	2608	wp_send_json_error(esc_html__('Invalid file type. Only PDF files are allowed.', 'mxchat'));
3338	2609	return;
		@@ -3338,12 +2609,9 @@
3338	2609	return;
3339	2610	}
3340	2611
3341	2612	$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';
	2613	+ $pdf_filename = 'mxchat_' . $session_id . '_' . time() . '.pdf';
3346	2614	$pdf_path = $upload_dir['path'] . '/' . $pdf_filename;
3347	2615
3348	2616	if (!move_uploaded_file($file['tmp_name'], $pdf_path)) {
3349	2617	wp_send_json_error(esc_html__('Failed to upload file.', 'mxchat'));
		@@ -3374,9 +2642,8 @@
3374	2642	return;
3375	2643	}
3376	2644
3377	2645	if (!empty($embeddings)) {
3378		- // Store the mapping between session and the random filename
3379	2646	set_transient('mxchat_pdf_url_' . $session_id, $pdf_path, HOUR_IN_SECONDS);
3380	2647	set_transient('mxchat_pdf_filename_' . $session_id, $original_filename, HOUR_IN_SECONDS);
3381	2648	set_transient('mxchat_pdf_embeddings_' . $session_id, $embeddings, HOUR_IN_SECONDS);
3382	2649	set_transient('mxchat_include_pdf_in_context_' . $session_id, true, HOUR_IN_SECONDS);
		@@ -3420,8 +2687,10 @@
3420	2687	wp_die();
3421	2688	}
3422	2689
3423	2690
	2691	+
	2692	+
3424	2693	function mxchat_fetch_new_messages() {
3425	2694	$session_id = sanitize_text_field($_POST['session_id']);
3426	2695	$last_seen_id = sanitize_text_field($_POST['last_seen_id']);
3427	2696	$persistence_enabled = $_POST['persistence_enabled'] === 'true';
		@@ -3434,31 +2703,14 @@
3434	2703	}
3435	2704
3436	2705	$history = get_option("mxchat_history_{$session_id}", []);
3437	2706
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	2707	$new_messages = array_filter($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: " . ($message['role'] ?? 'NO_ROLE'));
3445		-
3446	2708	// If persistence is enabled, show all new messages
3447	2709	if ($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 && $is_agent;
	2710	+ return !empty($message['id']) &&
	2711	+ strcmp($message['id'], $last_seen_id) > 0 &&
	2712	+ $message['role'] === 'agent';
3461	2713	}
3462	2714
3463	2715	// If persistence is disabled, only show messages after initial timestamp
3464	2716	return !empty($message['id']) &&
		@@ -3465,16 +2717,12 @@
3465	2717	$message['role'] === 'agent' &&
3466	2718	$message['timestamp'] > $initial_timestamp;
3467	2719	});
3468	2720
3469		- //error_log("MxChat WhatsApp DEBUG: Filtered messages count = " . count($new_messages));
	2721	+ //error_log(esc_html__("New agent messages fetched for session $session_id. Last seen ID: $last_seen_id", 'mxchat'));
3470	2722
3471		- // Include current chat mode so frontend can detect agent→AI transitions
3472		- $chat_mode = get_option("mxchat_mode_{$session_id}", 'ai');
3473		-
3474	2723	wp_send_json_success([
3475		- 'new_messages' => array_values($new_messages),
3476		- 'chat_mode' => $chat_mode
	2724	+ 'new_messages' => array_values($new_messages)
3477	2725	]);
3478	2726	wp_die();
3479	2727	}
3480	2728	public function mxchat_live_agent_handover($message, $user_id, $session_id) {
		@@ -3759,393 +3007,9 @@
3759	3007
3760	3008	//error_log("[DEBUG] Generated channel name: {$channel_name}");
3761	3009	return $channel_name;
3762	3010	}
3763		-
3764		-/**
3765		- * Telegram Live Agent Handover
3766		- * Creates a forum topic in the Telegram group and notifies agents
3767		- */
3768		-public function mxchat_telegram_live_agent_handover($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)) {
3792		- return false;
3793		- }
3794		-
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.";
3881		- $this->mxchat_save_chat_message($session_id, 'bot', $success_message);
3882		-
3883		- $this->fallbackResponse = [
3884		- 'text' => $success_message,
3885		- 'html' => '',
3886		- 'images' => [],
3887		- 'chat_mode' => 'agent'
3888		- ];
3889		-
3890		- wp_send_json([
3891		- 'success' => true,
3892		- 'text' => $success_message,
3893		- 'html' => '',
3894		- 'chat_mode' => 'agent',
3895		- 'session_id' => $session_id,
3896		- 'fallbackResponse' => $this->fallbackResponse
3897		- ]);
3898		- wp_die();
3899		-}
3900		-
3901		-/**
3902		- * Generate topic name for Telegram forum
3903		- */
3904		-private function generate_telegram_topic_name($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={$topic_id}");
4132		- }
4133		- } else {
4134		- //error_log('[MxChat Telegram DEBUG] No message in webhook data');
4135		- }
4136		-
4137		- return new WP_REST_Response(['ok' => true]);
4138		-}
4139		-
4140	3011	public function mxchat_send_user_message_to_agent($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		- }
4146		-
4147		- // Otherwise, try Slack
4148	3012	$slack_bot_token = $this->options['live_agent_bot_token'] ?? '';
4149	3013	$channel_id = get_option("mxchat_channel_{$session_id}", '');
4150	3014
4151	3015	if (empty($slack_bot_token) || empty($channel_id)) {
		@@ -4371,33 +3235,33 @@
4371	3235
4372	3236	$channel_id = $event['channel'];
4373	3237	$message_text = $event['text'] ?? '';
4374	3238	$message_ts = $event['ts'] ?? '';
4375		-
	3239	+
4376	3240	// Find session ID by looking for matching channel
4377	3241	global $wpdb;
4378	3242	$session_option = $wpdb->get_var(
4379	3243	$wpdb->prepare(
4380		- "SELECT option_name FROM {$wpdb->options}
4381		- WHERE option_name LIKE 'mxchat_channel_%'
	3244	+ "SELECT option_name FROM {$wpdb->options}
	3245	+ WHERE option_name LIKE 'mxchat_channel_%'
4382	3246	AND option_value = %s",
4383	3247	$channel_id
4384	3248	)
4385	3249	);
4386		-
	3250	+
4387	3251	if ($session_option) {
4388	3252	$session_id = str_replace('mxchat_channel_', '', $session_option);
4389		-
	3253	+
4390	3254	// Create a unique key for this specific message
4391	3255	$message_key = md5($session_id . $message_ts . $message_text);
4392	3256	$processed_messages = get_transient('mxchat_processed_messages_' . $session_id) ?: [];
4393		-
	3257	+
4394	3258	// Check if we've already processed this exact message
4395	3259	if (in_array($message_key, $processed_messages)) {
4396	3260	//error_log("Duplicate message detected for session $session_id");
4397	3261	return new WP_REST_Response(['ok' => true]);
4398	3262	}
4399		-
	3263	+
4400	3264	// Add to processed messages
4401	3265	$processed_messages[] = $message_key;
4402	3266	// Keep only last 50 messages per session
4403	3267	if (count($processed_messages) > 50) {
		@@ -4403,46 +3267,14 @@
4403	3267	if (count($processed_messages) > 50) {
4404	3268	$processed_messages = array_slice($processed_messages, -50);
4405	3269	}
4406	3270	set_transient('mxchat_processed_messages_' . $session_id, $processed_messages, HOUR_IN_SECONDS);
4407		-
4408		- $slack_bot_token = $this->options['live_agent_bot_token'] ?? '';
4409		-
4410		- // Handle agent ending the chat — transfer back to AI
4411		- // Format: "!endchat" or "!endchat <custom message to user>"
4412		- if (preg_match('/^!endchat\b/i', trim($message_text))) {
4413		- update_option("mxchat_mode_{$session_id}", 'ai');
4414		-
4415		- // Extract custom message after !endchat, or use empty string
4416		- $custom_message = trim(preg_replace('/^!endchat\s*/i', '', trim($message_text)));
4417		-
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		-
	3271	+
4441	3272	// Save the agent message
4442	3273	$this->mxchat_save_chat_message($session_id, 'agent', $message_text);
4443		-
	3274	+
4444	3275	// Send confirmation back to Slack (only once)
	3276	+ $slack_bot_token = $this->options['live_agent_bot_token'] ?? '';
4445	3277	if (!empty($slack_bot_token)) {
4446	3278	// Use a transient to prevent duplicate confirmations
4447	3279	$confirm_key = 'mxchat_confirm_' . $message_key;
4448	3280	if (!get_transient($confirm_key)) {
		@@ -4452,9 +3284,9 @@
4452	3284	'Authorization' => 'Bearer ' . $slack_bot_token
4453	3285	],
4454	3286	'body' => json_encode([
4455	3287	'channel' => $channel_id,
4456		- 'text' => "✅ _Message sent to user_",
	3288	+ 'text' => "✅ _Message sent to user_",
4457	3289	'thread_ts' => $event['ts'] // Reply in thread
4458	3290	])
4459	3291	]);
4460	3292	// Set transient to prevent duplicate confirmations
		@@ -4693,44 +3525,26 @@
4693	3525	}
4694	3526	}
4695	3527
4696	3528
4697		-private function mxchat_find_relevant_content($user_embedding, $bot_id = 'default', $user_query = '') {
4698		- //error_log("MXCHAT DEBUG: find_relevant_content called with bot_id: " . $bot_id);
4699		-
4700		- // Check for OpenAI Vector Store first (takes priority when enabled)
4701		- $bot_vectorstore_config = $this->get_bot_vectorstore_config($bot_id);
4702		-
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 = $current_options['model'] ?? 'gpt-5.1-chat-latest';
4709		-
4710		- if ($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 (" . $selected_model . "), skipping Vector Store");
4715		- }
4716		- }
4717		-
	3529	+private function mxchat_find_relevant_content($user_embedding, $bot_id = 'default') {
	3530	+ error_log("MXCHAT DEBUG: find_relevant_content called with bot_id: " . $bot_id);
	3531	+
4718	3532	// Get bot-specific Pinecone configuration
4719	3533	$bot_pinecone_config = $this->get_bot_pinecone_config($bot_id);
4720		-
	3534	+
4721	3535	// 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: " . ($bot_pinecone_config['namespace'] ?? 'NOT SET'));
4727		-
	3536	+ error_log("MXCHAT DEBUG: Pinecone config for bot '$bot_id':");
	3537	+ error_log(" - use_pinecone: " . ($bot_pinecone_config['use_pinecone'] ? 'true' : 'false'));
	3538	+ error_log(" - api_key: " . (empty($bot_pinecone_config['api_key']) ? 'EMPTY' : 'SET (hidden)'));
	3539	+ error_log(" - host: " . ($bot_pinecone_config['host'] ?? 'NOT SET'));
	3540	+ error_log(" - namespace: " . ($bot_pinecone_config['namespace'] ?? 'NOT SET'));
	3541	+
4728	3542	// Determine whether to use Pinecone based on bot configuration
4729	3543	$use_pinecone = isset($bot_pinecone_config['use_pinecone']) ? $bot_pinecone_config['use_pinecone'] : false;
	3544	+
	3545	+ error_log("MXCHAT DEBUG: Using " . ($use_pinecone ? "Pinecone" : "WordPress Database") . " for knowledge retrieval");
4730	3546
4731		- //error_log("MXCHAT DEBUG: Using " . ($use_pinecone ? "Pinecone" : "WordPress Database") . " for knowledge retrieval");
4732		-
4733	3547	if ($use_pinecone) {
4734	3548	return $this->find_relevant_content_pinecone($user_embedding, $bot_id, $bot_pinecone_config);
4735	3549	} else {
4736	3550	return $this->find_relevant_content_wordpress($user_embedding, $bot_id);
		@@ -4739,483 +3553,233 @@
4739	3553
4740	3554	private function find_relevant_content_wordpress($user_embedding, $bot_id = 'default') {
4741	3555	global $wpdb;
4742	3556	$system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
	3557	+ $cache_key = 'mxchat_system_prompt_embeddings_' . $bot_id; // Bot-specific cache key
	3558	+ $batch_size = 500;
	3559	+
4743	3560	// Initialize similarity analysis storage
4744	3561	$this->last_similarity_analysis = [
4745	3562	'knowledge_base_type' => 'WordPress Database',
4746		- 'bot_id' => $bot_id,
	3563	+ 'bot_id' => $bot_id, // Track which bot is being used
4747	3564	'top_matches' => [],
4748	3565	'threshold_used' => 0,
4749	3566	'total_checked' => 0
4750	3567	];
4751	3568
4752		- // NEW: Initialize valid URLs array
4753		- $valid_urls = [];
4754		-
4755		- // Get bot-specific options for similarity threshold
	3569	+ // Get bot-specific options for similarity threshold
4756	3570	$bot_options = $this->get_bot_options($bot_id);
4757	3571	$current_options = !empty($bot_options) ? $bot_options : $this->options;
4758	3572
4759		- // Get knowledge manager instance for role checking
4760		- $knowledge_manager = MxChat_Knowledge_Manager::get_instance();
	3573	+ // Retrieve embeddings from cache or database
	3574	+ $embeddings = wp_cache_get($cache_key, 'mxchat_system_prompts');
	3575	+ if ($embeddings === false) {
	3576	+ // Cache miss - load embeddings from database WITH CONTENT and ROLE RESTRICTION for testing
	3577	+ $embeddings = [];
	3578	+ $offset = 0;
4761	3579
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;
	3580	+ do {
	3581	+ // Add bot_id filter if not default and if bot_metadata column exists
	3582	+ $bot_filter = '';
	3583	+ if ($bot_id !== 'default') {
	3584	+ // Check if bot_metadata column exists
	3585	+ $column_exists = $wpdb->get_var("SHOW COLUMNS FROM {$system_prompt_table} LIKE 'bot_metadata'");
	3586	+ if ($column_exists) {
	3587	+ $bot_filter = $wpdb->prepare(" AND (bot_metadata = %s OR bot_metadata IS NULL OR bot_metadata = '')", $bot_id);
	3588	+ }
	3589	+ }
4767	3590
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		- }
	3591	+ $query = $wpdb->prepare(
	3592	+ "SELECT id, embedding_vector, article_content, source_url, role_restriction
	3593	+ FROM {$system_prompt_table}
	3594	+ WHERE 1=1 {$bot_filter}
	3595	+ LIMIT %d OFFSET %d",
	3596	+ $batch_size,
	3597	+ $offset
	3598	+ );
4776	3599
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;
	3600	+ $batch = $wpdb->get_results($query);
	3601	+ if (empty($batch)) {
	3602	+ break;
	3603	+ }
4789	3604
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		- ));
	3605	+ $embeddings = array_merge($embeddings, $batch);
	3606	+ $offset += $batch_size;
	3607	+ unset($batch);
	3608	+ } while (true);
4799	3609
4800		- if (empty($batch)) {
4801		- break;
	3610	+ if (empty($embeddings)) {
	3611	+ return '';
4802	3612	}
	3613	+
	3614	+ // Cache embeddings for future use (but note: this now includes content and role restrictions)
	3615	+ wp_cache_set($cache_key, $embeddings, 'mxchat_system_prompts', 3600);
	3616	+ }
4803	3617
4804		- foreach ($batch as $row) {
4805		- $database_embedding = $row->embedding_vector
4806		- ? unserialize($row->embedding_vector, ['allowed_classes' => false])
4807		- : null;
	3618	+ // Get knowledge manager instance for role checking
	3619	+ $knowledge_manager = MxChat_Knowledge_Manager::get_instance();
4808	3620
4809		- if (!is_array($database_embedding) || !is_array($user_embedding)) {
4810		- unset($database_embedding);
4811		- continue;
4812		- }
4813		-
	3621	+ // Get base similarity threshold from bot options or default options
	3622	+ $similarity_threshold = isset($current_options['similarity_threshold'])
	3623	+ ? ((int) $current_options['similarity_threshold']) / 100
	3624	+ : 0.35;
	3625	+
	3626	+ $this->last_similarity_analysis['threshold_used'] = $similarity_threshold;
	3627	+
	3628	+ // Calculate similarities and build results array
	3629	+ $all_similarities = [];
	3630	+ $relevant_results = [];
	3631	+
	3632	+ foreach ($embeddings as $embedding) {
	3633	+ $database_embedding = $embedding->embedding_vector
	3634	+ ? unserialize($embedding->embedding_vector, ['allowed_classes' => false])
	3635	+ : null;
	3636	+
	3637	+ if (is_array($database_embedding) && is_array($user_embedding)) {
4814	3638	$similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $database_embedding);
4815		- unset($database_embedding);
4816		-
4817		- $role_restriction = $row->role_restriction ?? 'public';
	3639	+
	3640	+ // Check role access
	3641	+ $role_restriction = $embedding->role_restriction ?? 'public';
4818	3642	$has_access = $knowledge_manager->mxchat_user_has_content_access($role_restriction);
4819		- $source_url = $row->source_url ?? '';
4820		-
4821		- // Maintain top 10 display buffer (insert-if-beats-worst)
4822		- if (count($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		- });
	3643	+
	3644	+ // Store ALL similarities for testing (top 10)
	3645	+ $source_display = '';
	3646	+ if (!empty($embedding->source_url) && $embedding->source_url !== '#') {
	3647	+ $source_display = $embedding->source_url;
	3648	+ } else {
	3649	+ $content_preview = strip_tags($embedding->article_content ?? '');
	3650	+ $content_preview = preg_replace('/\s+/', ' ', $content_preview);
	3651	+ $source_display = substr(trim($content_preview), 0, 50) . '...';
4844	3652	}
4845		-
4846		- // Track candidates for context assembly (above threshold + has access)
	3653	+
	3654	+ $all_similarities[] = [
	3655	+ 'document_id' => $embedding->id,
	3656	+ 'similarity' => $similarity,
	3657	+ 'similarity_percentage' => round($similarity * 100, 2),
	3658	+ 'above_threshold' => $similarity >= $similarity_threshold,
	3659	+ 'source_display' => $source_display,
	3660	+ 'content_preview' => substr(strip_tags($embedding->article_content ?? ''), 0, 100) . '...',
	3661	+ 'used_for_context' => false, // Initialize as false, we'll update this later
	3662	+ 'role_restriction' => $role_restriction, // Include role info for testing
	3663	+ 'has_access' => $has_access, // Include access info for testing
	3664	+ 'filtered_out' => !$has_access // Mark if filtered out by role
	3665	+ ];
	3666	+
	3667	+ // Only consider results above threshold AND with access for actual content retrieval
4847	3668	if ($similarity >= $similarity_threshold && $has_access) {
4848		- $candidates[] = [
4849		- 'id' => $row->id,
4850		- 'similarity' => $similarity,
4851		- 'source_url' => $source_url,
	3669	+ $relevant_results[] = [
	3670	+ 'id' => $embedding->id,
	3671	+ 'similarity' => $similarity
4852	3672	];
4853	3673	}
4854		-
4855		- $total_checked++;
4856	3674	}
4857		-
4858		- unset($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		- $this->current_valid_urls = [];
4873		- return '';
	3675	+
	3676	+ unset($database_embedding);
4874	3677	}
4875	3678
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] = $r->article_content;
4906		- }
4907		- unset($rows);
4908		- }
4909		- }
4910		-
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'] = $cand['id'];
4982		- }
4983		- }
4984		-
4985	3679	// Sort ALL similarities for testing display (highest first)
4986	3680	usort($all_similarities, function ($a, $b) {
4987	3681	return $b['similarity'] <=> $a['similarity'];
4988	3682	});
4989		-
4990		- // Sort URL groups by best score (highest first)
4991		- uasort($url_groups, function($a, $b) {
4992		- return $b['best_score'] <=> $a['best_score'];
	3683	+
	3684	+ // Sort relevant results by similarity (highest first)
	3685	+ usort($relevant_results, function ($a, $b) {
	3686	+ return $b['similarity'] <=> $a['similarity'];
4993	3687	});
4994		-
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;
4999		-
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
	3688	+
	3689	+ // Get top 5 results for actual content (standard approach)
	3690	+ $top_results = array_slice($relevant_results, 0, 5);
	3691	+
	3692	+ // NOW mark which documents are actually used for context
5004	3693	$used_document_ids = [];
5005		- foreach ($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[] = $group['single_id'];
5012		- }
	3694	+ foreach ($top_results as $result) {
	3695	+ $used_document_ids[] = $result['id'];
5013	3696	}
5014		-
	3697	+
5015	3698	// Update the all_similarities array to mark which were actually used
5016	3699	foreach ($all_similarities as &$similarity_item) {
5017	3700	$similarity_item['used_for_context'] = in_array($similarity_item['document_id'], $used_document_ids);
5018	3701	}
5019		-
5020		- // Store top 10 for testing panel
	3702	+
	3703	+ // Store top 10 for testing panel (now with correct used_for_context flags and role info)
5021	3704	$this->last_similarity_analysis['top_matches'] = array_slice($all_similarities, 0, 10);
5022		- $this->last_similarity_analysis['total_checked'] = $total_checked;
5023		-
	3705	+ $this->last_similarity_analysis['total_checked'] = count($embeddings);
	3706	+
	3707	+ //error_log("MxChat Testing: Stored " . count($this->last_similarity_analysis['top_matches']) . " top matches for testing");
	3708	+
5024	3709	// Initialize final content
5025	3710	$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		-
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;
	3711	+
	3712	+ // Track document IDs to avoid duplicates
	3713	+ $added_document_ids = [];
	3714	+
	3715	+ // Fetch and format content for each selected result
	3716	+ foreach ($top_results as $index => $result) {
	3717	+ if (in_array($result['id'], $added_document_ids)) {
	3718	+ continue;
5045	3719	}
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++;
	3720	+
	3721	+ $chunk_content = $this->fetch_content_with_product_links($result['id']);
	3722	+ $added_document_ids[] = $result['id'];
	3723	+
	3724	+ $content .= "## Reference " . ($index + 1) . " ##\n";
	3725	+ $content .= $chunk_content . "\n\n";
	3726	+
	3727	+ // PDF surrounding pages logic (unchanged)
	3728	+ if (strpos($chunk_content, '{"document_type":"pdf"') !== false) {
	3729	+ $surrounding_content = $wpdb->get_results($wpdb->prepare(
	3730	+ "SELECT id, article_content, role_restriction FROM {$system_prompt_table}
	3731	+ WHERE id IN (
	3732	+ (SELECT id FROM {$system_prompt_table} WHERE id < %d ORDER BY id DESC LIMIT 1),
	3733	+ (SELECT id FROM {$system_prompt_table} WHERE id > %d ORDER BY id ASC LIMIT 1)
	3734	+ )",
	3735	+ $result['id'],
	3736	+ $result['id']
	3737	+ ));
	3738	+
	3739	+ // Check role access for surrounding content too
	3740	+ if (!empty($surrounding_content[0])) {
	3741	+ $surrounding_role = $surrounding_content[0]->role_restriction ?? 'public';
	3742	+ if ($knowledge_manager->mxchat_user_has_content_access($surrounding_role)) {
	3743	+ $content .= "## Related Content ##\n";
	3744	+ $content .= $surrounding_content[0]->article_content . "\n\n";
	3745	+ $added_document_ids[] = $surrounding_content[0]->id;
5072	3746	}
5073		- $full_text = implode("\n\n", $chunk_texts);
5074	3747	}
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
5085		- }
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: " . $source_url . "\n\n";
	3748	+
	3749	+ if (!empty($surrounding_content[1])) {
	3750	+ $surrounding_role = $surrounding_content[1]->role_restriction ?? 'public';
	3751	+ if ($knowledge_manager->mxchat_user_has_content_access($surrounding_role)) {
	3752	+ $content .= "## Related Content ##\n";
	3753	+ $content .= $surrounding_content[1]->article_content . "\n\n";
	3754	+ $added_document_ids[] = $surrounding_content[1]->id;
5098	3755	}
5099		- } else {
5100		- // Manual entry — no reference number, no citation
5101		- $content .= "## Information ##\n";
5102		- $content .= $full_text . "\n\n";
5103	3756	}
5104		-
5105		- // Extract any URLs from the text content itself (only if citation links enabled)
5106		- if ($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	3757	}
5119	3758	}
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'], $bot_id);
5130		-
	3759	+
5131	3760	// Add response guidelines
5132		- if (empty($top_urls)) {
	3761	+ if (empty($top_results)) {
5133	3762	$content = "No reference information was found for this query.\n\n";
5134	3763	} else {
5135		- // Build response guidelines based on citation links setting
5136	3764	$content .= "\n## Response Guidelines ##\n" .
5137	3765	"You are an AI Chatbot. Answer naturally and helpfully using only the information from the references above. " .
5138	3766	"Be conversational and friendly, but never mention your knowledge base or training data. " .
5139	3767	"If you don't have specific information or are uncertain about any details, it's always " .
5140	3768	"better to honestly say you don't know rather than making up or guessing at answers. " .
5141		- "When information is incomplete, let them know you are unsure.\n\n";
5142		-
5143		- // Only add hyperlink instructions if citation links are enabled
5144		- if ($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		- } else {
5149		- $content .= "IMPORTANT: Do not include any citation links, source URLs, or hyperlinks in your responses. " .
5150		- "Simply provide helpful answers based on the reference information without citing sources.";
5151		- }
	3769	+ "When information is incomplete, let them know you are unsure.";
5152	3770	}
5153	3771
5154	3772	return trim($content);
5155	3773	}
5156	3774
5157		-/**
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
5164		- */
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';
5168		-
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;
5179		- return '';
5180		- }
5181		-
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);
5186		-
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", $chunks);
5209		-}
5210		-
5211	3775	private function find_relevant_content_pinecone($user_embedding, $bot_id = 'default', $bot_config = null) {
5212	3776	global $wpdb;
5213	3777
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'));
	3778	+ error_log("MXCHAT DEBUG: find_relevant_content_pinecone called");
	3779	+ error_log(" - bot_id: " . $bot_id);
	3780	+ error_log(" - user_embedding is array: " . (is_array($user_embedding) ? 'yes' : 'no'));
	3781	+ error_log(" - user_embedding count: " . (is_array($user_embedding) ? count($user_embedding) : 'N/A'));
5218	3782
5219	3783	// Use bot-specific config or fall back to default
5220	3784	if ($bot_config === null) {
5221	3785	$bot_config = $this->get_bot_pinecone_config($bot_id);
		@@ -5224,12 +3788,12 @@
5224	3788	$api_key = $bot_config['api_key'] ?? '';
5225	3789	$host = $bot_config['host'] ?? '';
5226	3790	$namespace = $bot_config['namespace'] ?? '';
5227	3791
5228		- //error_log("MXCHAT DEBUG: Pinecone query parameters:");
5229		- //error_log(" - API Key: " . (empty($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)' : $namespace));
	3792	+ error_log("MXCHAT DEBUG: Pinecone query parameters:");
	3793	+ error_log(" - API Key: " . (empty($api_key) ? 'EMPTY - ERROR!' : 'Present (length: ' . strlen($api_key) . ')'));
	3794	+ error_log(" - Host: " . (empty($host) ? 'EMPTY - ERROR!' : $host));
	3795	+ error_log(" - Namespace: " . (empty($namespace) ? 'EMPTY (will use default)' : $namespace));
5232	3796
5233	3797	// Initialize similarity analysis storage
5234	3798	$this->last_similarity_analysis = [
5235	3799	'knowledge_base_type' => 'Pinecone',
		@@ -5239,17 +3803,12 @@
5239	3803	'threshold_used' => 0,
5240	3804	'total_checked' => 0
5241	3805	];
5242	3806
5243		- // NEW: Initialize valid URLs array
5244		- $valid_urls = [];
5245		-
5246	3807	if (empty($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		- $this->current_valid_urls = [];
	3808	+ error_log("MXCHAT DEBUG ERROR: Missing Pinecone host or API key!");
	3809	+ error_log(" - Host empty: " . (empty($host) ? 'YES' : 'NO'));
	3810	+ error_log(" - API key empty: " . (empty($api_key) ? 'YES' : 'NO'));
5252	3811	return '';
5253	3812	}
5254	3813
5255	3814	// Get knowledge manager instance for role checking
		@@ -5269,9 +3828,9 @@
5269	3828	$api_endpoint = "https://{$host}/query";
5270	3829
5271	3830	$request_body = array(
5272	3831	'vector' => $user_embedding,
5273		- 'topK' => 50, // Increased for chunked content grouping - need more candidates to find top N unique URLs
	3832	+ 'topK' => 20, // Request more to get good testing data
5274	3833	'includeMetadata' => true,
5275	3834	'includeValues' => true
5276	3835	);
5277	3836
		@@ -5279,11 +3838,11 @@
5279	3838	if (!empty($namespace)) {
5280	3839	$request_body['namespace'] = $namespace;
5281	3840	}
5282	3841
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'));
	3842	+ error_log("MXCHAT DEBUG: About to call Pinecone API");
	3843	+ error_log(" - Endpoint: " . $api_endpoint);
	3844	+ error_log(" - Namespace in request: " . (!empty($namespace) ? $namespace : 'NOT SET'));
5286	3845
5287	3846	$response = wp_remote_post($api_endpoint, array(
5288	3847	'headers' => array(
5289	3848	'Api-Key' => $api_key,
		@@ -5294,61 +3853,53 @@
5294	3853	'timeout' => 30
5295	3854	));
5296	3855
5297	3856	if (is_wp_error($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 = [];
	3857	+ error_log("MXCHAT DEBUG ERROR: WP Error in Pinecone request: " . $response->get_error_message());
5301	3858	return '';
5302	3859	}
5303	3860
5304	3861	$response_code = wp_remote_retrieve_response_code($response);
5305		- //error_log("MXCHAT DEBUG: Pinecone response code: " . $response_code);
	3862	+ error_log("MXCHAT DEBUG: Pinecone response code: " . $response_code);
5306	3863
5307	3864	if ($response_code !== 200) {
5308	3865	$response_body = wp_remote_retrieve_body($response);
5309		- //error_log("MXCHAT DEBUG ERROR: Pinecone API error response: " . substr($response_body, 0, 500));
5310		- // Store empty array for valid URLs
5311		- $this->current_valid_urls = [];
	3866	+ error_log("MXCHAT DEBUG ERROR: Pinecone API error response: " . substr($response_body, 0, 500));
5312	3867	return '';
5313	3868	}
5314	3869
5315	3870	// ADD DETAILED DEBUG SECTION HERE
5316	3871	$response_body = wp_remote_retrieve_body($response);
5317		- //error_log("MXCHAT DEBUG: Raw Pinecone response length: " . strlen($response_body));
	3872	+ error_log("MXCHAT DEBUG: Raw Pinecone response length: " . strlen($response_body));
5318	3873
5319	3874	$results = json_decode($response_body, true);
5320	3875
5321	3876	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		- $this->current_valid_urls = [];
	3877	+ error_log("MXCHAT DEBUG ERROR: JSON decode error: " . json_last_error_msg());
	3878	+ error_log("MXCHAT DEBUG: First 500 chars of response: " . substr($response_body, 0, 500));
5326	3879	return '';
5327	3880	}
5328	3881
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 (' . $results['namespace'] . ')' : 'no'));
	3882	+ error_log("MXCHAT DEBUG: Pinecone response structure:");
	3883	+ error_log(" - Has 'matches' key: " . (isset($results['matches']) ? 'yes' : 'no'));
	3884	+ error_log(" - Has 'namespace' key: " . (isset($results['namespace']) ? 'yes (' . $results['namespace'] . ')' : 'no'));
5332	3885
5333	3886	if (empty($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		- $this->current_valid_urls = [];
	3887	+ error_log("MXCHAT DEBUG: No matches found in Pinecone response");
	3888	+ error_log("MXCHAT DEBUG: Response keys: " . implode(', ', array_keys($results)));
5338	3889	return '';
5339	3890	}
5340	3891
5341		- //error_log("MXCHAT DEBUG: Found " . count($results['matches']) . " matches in Pinecone");
	3892	+ error_log("MXCHAT DEBUG: Found " . count($results['matches']) . " matches in Pinecone");
5342	3893
5343	3894	// Log first match details for debugging
5344	3895	if (!empty($results['matches'][0])) {
5345	3896	$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($first_match['metadata']) ? 'yes' : 'no'));
	3897	+ error_log("MXCHAT DEBUG: First match details:");
	3898	+ error_log(" - Score: " . ($first_match['score'] ?? 'no score'));
	3899	+ error_log(" - Has metadata: " . (isset($first_match['metadata']) ? 'yes' : 'no'));
5349	3900	if (isset($first_match['metadata'])) {
5350		- //error_log(" - Metadata keys: " . implode(', ', array_keys($first_match['metadata'])));
	3901	+ error_log(" - Metadata keys: " . implode(', ', array_keys($first_match['metadata'])));
5351	3902	}
5352	3903	}
5353	3904
5354	3905	// Initialize the final content
		@@ -5354,182 +3905,45 @@
5354	3905	// Initialize the final content
5355	3906	$content = '';
5356	3907	$matches_used = 0;
5357	3908	$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		-
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		- $url_groups = array();
5371		-
	3909	+
	3910	+ // Process each match for actual content generation (lazy role checking)
5372	3911	foreach ($results['matches'] as $index => $match) {
5373	3912	// Skip if similarity is below threshold
5374	3913	if ($match['score'] < $similarity_threshold) {
5375	3914	continue;
5376	3915	}
5377		-
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;
5389		- }
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'] = $match_id;
5422		- }
5423		- }
5424		-
5425		- // Sort URL groups by best score (highest first)
5426		- uasort($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 >= $max_total_chunks) {
	3916	+
	3917	+ // Limit to top 5 matches above threshold
	3918	+ if ($matches_used >= 5) {
5455	3919	break;
5456	3920	}
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", $chunk_texts);
	3921	+
	3922	+ if (!empty($match['metadata']['text'])) {
	3923	+ // LAZY ROLE CHECK: Only check role for content we're actually considering
	3924	+ $match_id = $match['id'] ?? '';
	3925	+ $role_restriction = $this->get_single_vector_role($match_id, $match['metadata']);
	3926	+ $has_access = $knowledge_manager->mxchat_user_has_content_access($role_restriction);
	3927	+
	3928	+ // Skip if user doesn't have access
	3929	+ if (!$has_access) {
	3930	+ continue;
5485	3931	}
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
	3932	+
	3933	+ // User has access - add to content
	3934	+ $content .= "## Reference " . ($matches_used + 1) . " ##\n";
	3935	+ $content .= $match['metadata']['text'] . "\n\n";
	3936	+
	3937	+ if (!empty($match['metadata']['source_url'])) {
	3938	+ $content .= "URL: " . $match['metadata']['source_url'] . "\n\n";
5496	3939	}
5497		-
5498		- // Use numbered reference for URL-based entries, plain info label for manual entries
5499		- // Manual entries are stored with an internal mxchat:// placeholder URL — never expose them as citations
5500		- if (!empty($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;
	3940	+
	3941	+ $matches_used_for_context[] = $match['id'] ?? $index;
	3942	+ $matches_used++;
5529	3943	}
5530	3944	}
5531		-
	3945	+
5532	3946	// Process ALL matches for testing data (top 10) - with role checking for testing display
5533	3947	$all_matches = [];
5534	3948	foreach ($results['matches'] as $index => $match) {
5535	3949	if ($index >= 10) break; // Limit to top 10 for testing
		@@ -5549,19 +3963,9 @@
5549	3963	$source_display = substr(trim($content_preview), 0, 50) . '...';
5550	3964	}
5551	3965
5552	3966	$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		-
	3967	+
5564	3968	$all_matches[] = [
5565	3969	'document_id' => $match_id_for_display,
5566	3970	'similarity' => $match['score'],
5567	3971	'similarity_percentage' => round($match['score'] * 100, 2),
		@@ -5570,12 +3974,9 @@
5570	3974	'content_preview' => substr(strip_tags($match['metadata']['text'] ?? ''), 0, 100) . '...',
5571	3975	'used_for_context' => in_array($match_id_for_display, $matches_used_for_context),
5572	3976	'role_restriction' => $role_restriction,
5573	3977	'has_access' => $has_access,
5574		- 'filtered_out' => !$has_access,
5575		- 'is_chunk' => $is_chunk,
5576		- 'chunk_index' => $chunk_index,
5577		- 'total_chunks' => $total_chunks
	3978	+ 'filtered_out' => !$has_access
5578	3979	];
5579	3980	}
5580	3981
5581	3982	// Store for testing panel
		@@ -5580,43 +3981,25 @@
5580	3981
5581	3982	// Store for testing panel
5582	3983	$this->last_similarity_analysis['top_matches'] = $all_matches;
5583	3984	$this->last_similarity_analysis['total_checked'] = count($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'], $bot_id);
5592		-
	3985	+
5593	3986	// Add response guidelines
5594	3987	if ($matches_used === 0) {
5595	3988	$content = "No reference information was found for this query.\n\n";
5596	3989	} else {
5597		- // Build response guidelines based on citation links setting
5598	3990	$content .= "\n## Response Guidelines ##\n" .
5599	3991	"You are an AI Chatbot. Answer naturally and helpfully using only the information from the references above. " .
5600	3992	"Be conversational and friendly, but never mention your knowledge base or training data. " .
5601	3993	"If you don't have specific information or are uncertain about any details, it's always " .
5602	3994	"better to honestly say you don't know rather than making up or guessing at answers. " .
5603		- "When information is incomplete, let them know you are unsure.\n\n";
5604		-
5605		- // Only add hyperlink instructions if citation links are enabled
5606		- if ($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		- $content .= "IMPORTANT: Do not include any citation links, source URLs, or hyperlinks in your responses. " .
5612		- "Simply provide helpful answers based on the reference information without citing sources.";
5613		- }
	3995	+ "When information is incomplete, let them know you are unsure.";
5614	3996	}
5615		-
	3997	+
5616	3998	return trim($content);
5617	3999	}
5618	4000
	4001	+
5619	4002	/**
5620	4003	* Get role restriction for a single vector (with caching)
5621	4004	*/
5622	4005	private function get_single_vector_role($vector_id, $metadata = array()) {
		@@ -5653,518 +4036,12 @@
5653	4036	}
5654	4037
5655	4038	// Cache individual role for 1 hour
5656	4039	wp_cache_set($cache_key, $role_restriction, 'mxchat_vector_roles', 3600);
5657		-
	4040	+
5658	4041	return $role_restriction;
5659	4042	}
5660	4043
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 $bot_config;
6165		-}
6166		-
6167	4044	private function mxchat_find_relevant_products($user_embedding) {
6168	4045	//error_log('MXChat Vector Search: Starting product search...');
6169	4046
6170	4047	// Retrieve the add-on settings from the database
		@@ -6185,75 +4062,73 @@
6185	4062	}
6186	4063	private function find_relevant_products_wordpress($user_embedding) {
6187	4064	global $wpdb;
6188	4065	$system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
	4066	+ $cache_key = 'mxchat_system_prompt_embeddings';
	4067	+ $batch_size = 500;
6189	4068
6190		- if (!is_array($user_embedding)) {
6191		- return '';
6192		- }
	4069	+ // Original WordPress database search logic
	4070	+ // [Previous implementation remains the same]
	4071	+ $embeddings = wp_cache_get($cache_key, 'mxchat_system_prompts');
	4072	+ if ($embeddings === false) {
	4073	+ $embeddings = [];
	4074	+ $offset = 0;
6193	4075
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;
	4076	+ do {
	4077	+ $query = $wpdb->prepare(
	4078	+ "SELECT id, embedding_vector
	4079	+ FROM {$system_prompt_table}
	4080	+ LIMIT %d OFFSET %d",
	4081	+ $batch_size,
	4082	+ $offset
	4083	+ );
6202	4084
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		- ));
	4085	+ $batch = $wpdb->get_results($query);
	4086	+ if (empty($batch)) {
	4087	+ break;
	4088	+ }
6211	4089
6212		- if (empty($batch)) {
6213		- break;
6214		- }
	4090	+ $embeddings = array_merge($embeddings, $batch);
	4091	+ $offset += $batch_size;
6215	4092
6216		- foreach ($batch as $row) {
6217		- $database_embedding = $row->embedding_vector
6218		- ? unserialize($row->embedding_vector, ['allowed_classes' => false])
6219		- : null;
	4093	+ unset($batch);
6220	4094
6221		- if (!is_array($database_embedding)) {
6222		- unset($database_embedding);
6223		- continue;
6224		- }
	4095	+ } while (true);
6225	4096
	4097	+ if (empty($embeddings)) {
	4098	+ return '';
	4099	+ }
	4100	+ wp_cache_set($cache_key, $embeddings, 'mxchat_system_prompts', 3600);
	4101	+ }
	4102	+
	4103	+ $relevant_results = [];
	4104	+ foreach ($embeddings as $embedding) {
	4105	+ $database_embedding = $embedding->embedding_vector
	4106	+ ? unserialize($embedding->embedding_vector, ['allowed_classes' => false])
	4107	+ : null;
	4108	+ if (is_array($database_embedding) && is_array($user_embedding)) {
6226	4109	$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		- }
	4110	+ $relevant_results[] = [
	4111	+ 'id' => $embedding->id,
	4112	+ 'similarity' => $similarity
	4113	+ ];
6245	4114	}
	4115	+ unset($database_embedding);
	4116	+ }
6246	4117
6247		- unset($batch);
6248		- $offset += $batch_size;
6249		- } while (true);
	4118	+ // Use fixed threshold for products
	4119	+ $similarity_threshold = 0.85;
6250	4120
6251		- if (empty($top_results)) {
6252		- return '';
6253		- }
	4121	+ $relevant_results = array_filter($relevant_results, function ($result) use ($similarity_threshold) {
	4122	+ return $result['similarity'] >= $similarity_threshold;
	4123	+ });
	4124	+ usort($relevant_results, function ($a, $b) {
	4125	+ return $b['similarity'] <=> $a['similarity'];
	4126	+ });
6254	4127
	4128	+ $top_results = array_slice($relevant_results, 0, 5);
6255	4129	$content = '';
	4130	+
6256	4131	foreach ($top_results as $result) {
6257	4132	$chunk_content = $this->fetch_content_with_product_links($result['id']);
6258	4133	$content .= $chunk_content . "\n\n";
6259	4134	}
		@@ -6362,61 +4237,23 @@
6362	4237
6363	4238	/**
6364	4239	* Get system instructions for a specific bot or default
6365	4240	* 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 $session_id Optional session ID to lookup visitor name
6371	4241	*/
6372		-private function get_system_instructions($bot_id = 'default', $session_id = '') {
6373		- $instructions = '';
6374		-
	4242	+private function get_system_instructions($bot_id = 'default') {
6375	4243	// Check if multi-bot add-on is active
6376	4244	if (class_exists('MxChat_Multi_Bot_Core_Manager') && $bot_id !== 'default') {
6377	4245	// Get bot-specific options from multi-bot add-on
6378	4246	$bot_options = apply_filters('mxchat_get_bot_options', array(), $bot_id);
6379		-
	4247	+
6380	4248	// If bot has custom system instructions, use those
6381	4249	if (!empty($bot_options['system_prompt_instructions'])) {
6382		- $instructions = $bot_options['system_prompt_instructions'];
	4250	+ return $bot_options['system_prompt_instructions'];
6383	4251	}
6384	4252	}
6385		-
	4253	+
6386	4254	// Fall back to default system instructions
6387		- if (empty($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 $instructions;
	4255	+ return isset($this->options['system_prompt_instructions']) ? $this->options['system_prompt_instructions'] : '';
6419	4256	}
6420	4257	/**
6421	4258	* Get the current bot ID from session or request context
6422	4259	*/
		@@ -6436,9 +4273,9 @@
6436	4273
6437	4274	// Fall back to default
6438	4275	return 'default';
6439	4276	}
6440		-private function mxchat_generate_response($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, $selected_model = 'gpt-5.1-chat-latest') {
	4277	+private function mxchat_generate_response($relevant_content, $api_key, $xai_api_key, $claude_api_key, $deepseek_api_key, $gemini_api_key, $conversation_history, $streaming = false, $session_id = '', $testing_data = null, $selected_model = 'gpt-4o') {
6441	4278	try {
6442	4279	if (!$relevant_content) {
6443	4280	$error_response = [
6444	4281	'error' => esc_html__("I couldn't find relevant information on that topic.", 'mxchat'),
		@@ -6444,73 +4281,22 @@
6444	4281	'error' => esc_html__("I couldn't find relevant information on that topic.", 'mxchat'),
6445	4282	'error_code' => 'no_relevant_content'
6446	4283	];
6447	4284
	4285	+ // Add testing data to error response if available
6448	4286	if ($testing_data !== null) {
6449	4287	$error_response['testing_data'] = $testing_data;
	4288	+ //error_log("MxChat Testing: Added testing data to no_relevant_content error");
6450	4289	}
6451	4290
6452	4291	return $error_response;
6453	4292	}
6454	4293
	4294	+ // Ensure conversation_history is an array
6455	4295	if (!is_array($conversation_history)) {
6456	4296	$conversation_history = array();
6457	4297	}
6458	4298
6459		- // Check if this is an OpenRouter model
6460		- if ($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	4299
6514	4300	// Extract model prefix to determine the provider
6515	4301	$model_parts = explode('-', $selected_model);
6516	4302	$provider = strtolower($model_parts[0]);
		@@ -6553,9 +4339,9 @@
6553	4339	$claude_api_key,
6554	4340	$conversation_history,
6555	4341	$relevant_content,
6556	4342	$session_id,
6557		- $testing_data
	4343	+ $testing_data // Pass testing data
6558	4344	);
6559	4345	} else {
6560	4346	$response = $this->mxchat_generate_response_claude(
6561	4347	$selected_model,
		@@ -6583,9 +4369,9 @@
6583	4369	$xai_api_key,
6584	4370	$conversation_history,
6585	4371	$relevant_content,
6586	4372	$session_id,
6587		- $testing_data
	4373	+ $testing_data // Pass testing data
6588	4374	);
6589	4375	} else {
6590	4376	$response = $this->mxchat_generate_response_xai(
6591	4377	$selected_model,
		@@ -6613,9 +4399,9 @@
6613	4399	$deepseek_api_key,
6614	4400	$conversation_history,
6615	4401	$relevant_content,
6616	4402	$session_id,
6617		- $testing_data
	4403	+ $testing_data // Pass testing data
6618	4404	);
6619	4405	} else {
6620	4406	$response = $this->mxchat_generate_response_deepseek(
6621	4407	$selected_model,
		@@ -6637,27 +4423,9 @@
6637	4423	$error_response['testing_data'] = $testing_data;
6638	4424	}
6639	4425	return $error_response;
6640	4426	}
6641		-
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) {
	4427	+ if ($streaming) {
6660	4428	return $this->mxchat_generate_response_openai_stream(
6661	4429	$selected_model,
6662	4430	$api_key,
6663	4431	$conversation_history,
		@@ -6662,9 +4430,9 @@
6662	4430	$api_key,
6663	4431	$conversation_history,
6664	4432	$relevant_content,
6665	4433	$session_id,
6666		- $testing_data
	4434	+ $testing_data // Pass testing data
6667	4435	);
6668	4436	} else {
6669	4437	$response = $this->mxchat_generate_response_openai(
6670	4438	$selected_model,
		@@ -6675,8 +4443,9 @@
6675	4443	}
6676	4444	break;
6677	4445
6678	4446	default:
	4447	+ // Default to OpenAI for custom models or unrecognized prefixes
6679	4448	if (empty($api_key)) {
6680	4449	$error_response = [
6681	4450	'error' => esc_html__('OpenAI API key is not configured', 'mxchat'),
6682	4451	'error_code' => 'missing_openai_api_key'
		@@ -6685,25 +4454,9 @@
6685	4454	$error_response['testing_data'] = $testing_data;
6686	4455	}
6687	4456	return $error_response;
6688	4457	}
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) {
	4458	+ if ($streaming) {
6706	4459	return $this->mxchat_generate_response_openai_stream(
6707	4460	$selected_model,
6708	4461	$api_key,
6709	4462	$conversation_history,
		@@ -6708,9 +4461,9 @@
6708	4461	$api_key,
6709	4462	$conversation_history,
6710	4463	$relevant_content,
6711	4464	$session_id,
6712		- $testing_data
	4465	+ $testing_data // Pass testing data
6713	4466	);
6714	4467	} else {
6715	4468	$response = $this->mxchat_generate_response_openai(
6716	4469	$selected_model,
		@@ -6721,18 +4474,24 @@
6721	4474	}
6722	4475	break;
6723	4476	}
6724	4477
	4478	+ // Check if the response is an error array from the provider-specific function
6725	4479	if (is_array($response) && isset($response['error'])) {
	4480	+ // Add testing data to error response if available
6726	4481	if ($testing_data !== null) {
6727	4482	$response['testing_data'] = $testing_data;
	4483	+ //error_log("MxChat Testing: Added testing data to provider error response");
6728	4484	}
6729		- return $response;
	4485	+ return $response; // Pass through the error with testing data
6730	4486	}
6731	4487
	4488	+ // For successful non-streaming responses, we don't add testing data here
	4489	+ // because it will be added in the main handler
6732	4490	return $response;
6733	4491
6734	4492	} catch (Exception $e) {
	4493	+ //error_log('MXChat Error: ' . $e->getMessage());
6735	4494	$error_response = [
6736	4495	'error' => sprintf(esc_html__('An error occurred: %s', 'mxchat'), esc_html($e->getMessage())),
6737	4496	'error_code' => 'system_exception',
6738	4497	'exception_details' => $e->getMessage()
		@@ -6737,229 +4496,24 @@
6737	4496	'error_code' => 'system_exception',
6738	4497	'exception_details' => $e->getMessage()
6739	4498	];
6740	4499
	4500	+ // Add testing data to exception response if available
6741	4501	if ($testing_data !== null) {
6742	4502	$error_response['testing_data'] = $testing_data;
	4503	+ //error_log("MxChat Testing: Added testing data to exception response");
6743	4504	}
6744	4505
6745	4506	return $error_response;
6746	4507	}
6747	4508	}
6748		-private function mxchat_generate_response_openrouter_stream($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	4509
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']
6776		- );
6777		- }
6778		- }
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		- } catch (Exception $e) {
6934		- $regular_response = $this->mxchat_generate_response_openrouter(
6935		- $selected_model,
6936		- $openrouter_api_key,
6937		- $conversation_history,
6938		- $relevant_content
6939		- );
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		- }
6955		-}
6956	4510	private function mxchat_generate_response_openai_stream($selected_model, $api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) {
6957	4511	try {
6958	4512	$bot_id = $this->get_current_bot_id($session_id);
6959	4513
6960	4514	// Get system prompt instructions using centralized function
6961		- $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
	4515	+ $system_prompt_instructions = $this->get_system_instructions($bot_id);
6962	4516
6963	4517	// Ensure conversation_history is an array
6964	4518	if (!is_array($conversation_history)) {
6965	4519	$conversation_history = array();
		@@ -6998,13 +4552,8 @@
6998	4552	$conversation_history,
6999	4553	$relevant_content
7000	4554	);
7001	4555
7002		- // Save bot response to transcript
7003		- if (!empty($regular_response) && !empty($session_id)) {
7004		- $this->mxchat_save_chat_message($session_id, 'bot', $regular_response);
7005		- }
7006		-
7007	4556	$response_data = [
7008	4557	'text' => $regular_response,
7009	4558	'html' => '',
7010	4559	'session_id' => $session_id
		@@ -7018,45 +4567,16 @@
7018	4567	echo json_encode($response_data);
7019	4568	return true;
7020	4569	}
7021	4570
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		- );
7031		-
7032		- // Build request body with optimal settings for fast streaming
7033		- $request_body = [
	4571	+ // Prepare the request body with stream: true
	4572	+ $body = json_encode([
7034	4573	'model' => $selected_model,
7035	4574	'messages' => $formatted_conversation,
7036	4575	'temperature' => 1,
7037	4576	'stream' => true
7038		- ];
	4577	+ ]);
7039	4578
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';
7051		- }
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	4579	// Use cURL for streaming support
7060	4580	$ch = curl_init();
7061	4581	curl_setopt($ch, CURLOPT_URL, 'https://api.openai.com/v1/chat/completions');
7062	4582	curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
		@@ -7129,11 +4649,10 @@
7129	4649	$response = curl_exec($ch);
7130	4650	$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
7131	4651
7132	4652	if (curl_errno($ch) || $http_code !== 200) {
7133		- $curl_error = curl_error($ch);
7134	4653	curl_close($ch);
7135		-
	4654	+
7136	4655	// Fallback to regular response
7137	4656	$regular_response = $this->mxchat_generate_response_openai(
7138	4657	$selected_model,
7139	4658	$api_key,
		@@ -7139,34 +4658,19 @@
7139	4658	$api_key,
7140	4659	$conversation_history,
7141	4660	$relevant_content
7142	4661	);
7143		-
7144		- // FIXED: Check if regular response returned an error
7145		- if (is_array($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		-
	4662	+
7159	4663	$response_data = [
7160	4664	'text' => $regular_response,
7161	4665	'html' => '',
7162	4666	'session_id' => $session_id
7163	4667	];
7164		-
	4668	+
7165	4669	if ($testing_data !== null) {
7166	4670	$response_data['testing_data'] = $testing_data;
7167	4671	}
7168		-
	4672	+
7169	4673	header('Content-Type: application/json');
7170	4674	echo json_encode($response_data);
7171	4675	return true;
7172	4676	}
		@@ -7171,36 +4675,16 @@
7171	4675	return true;
7172	4676	}
7173	4677
7174	4678	curl_close($ch);
7175		-
	4679	+
7176	4680	// Save the complete response to maintain chat persistence
7177	4681	if (!empty($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);
	4682	+ $this->mxchat_save_chat_message($session_id, 'bot', $full_response);
7199	4683	}
7200		-
	4684	+
7201	4685	return true; // Indicate streaming completed successfully
7202		-
	4686	+
7203	4687	} catch (Exception $e) {
7204	4688	// Fallback to regular response
7205	4689	$regular_response = $this->mxchat_generate_response_openai(
7206	4690	$selected_model,
		@@ -7207,394 +4691,24 @@
7207	4691	$api_key,
7208	4692	$conversation_history,
7209	4693	$relevant_content
7210	4694	);
7211		-
7212		- // FIXED: Check if regular response returned an error
7213		- if (is_array($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		-
	4695	+
7227	4696	$response_data = [
7228	4697	'text' => $regular_response,
7229	4698	'html' => '',
7230	4699	'session_id' => $session_id
7231	4700	];
7232		-
	4701	+
7233	4702	if ($testing_data !== null) {
7234	4703	$response_data['testing_data'] = $testing_data;
7235	4704	}
7236		-
	4705	+
7237	4706	header('Content-Type: application/json');
7238	4707	echo json_encode($response_data);
7239	4708	return true;
7240	4709	}
7241	4710	}
7242		-
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, $session_id);
7251		-
7252		- if (!is_array($conversation_history)) {
7253		- $conversation_history = array();
7254		- }
7255		-
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 = [];
7259		-
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		- 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		- ];
7346		- }
7347		-
7348		- $response_code = wp_remote_retrieve_response_code($response);
7349		- $response_body = wp_remote_retrieve_body($response);
7350		-
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		- ];
7361		- }
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 $output_text;
7417		-}
7418		-
7419		-/**
7420		- * Handle streaming web search response using Responses API
7421		- */
7422		-private function mxchat_web_search_streaming_response($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);
7429		- }
7430		-
7431		- // Setup streaming headers
7432		- $this->setup_streaming_headers();
7433		-
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);
7445		-
7446		- $full_response = '';
7447		- $stream_started = false;
7448		- $buffer = '';
7449		- $citations = [];
7450		-
7451		- curl_setopt($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		- }
7458		-
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;
7488		- }
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' => $annotation['title'] ?? ''
7517		- ];
7518		- }
7519		- }
7520		- }
7521		- }
7522		- }
7523		- break;
7524		- }
7525		- }
7526		- }
7527		-
7528		- return strlen($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;
7552		- }
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		- }
7566		-
7567		- curl_close($ch);
7568		-
7569		- // Save the complete response with RAG context so the "sources" link
7570		- // appears in transcripts — mirrors the pattern used by Claude/OpenAI streaming.
7571		- if (!empty($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($this->last_action_analysis);
7575		-
7576		- if ($has_rag_data || $has_action_data) {
7577		- $rag_context_for_storage = [];
7578		-
7579		- if ($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, $rag_context_for_storage);
7592		- }
7593		-
7594		- return true;
7595		-}
7596		-
7597	4711	private function mxchat_generate_response_claude_stream($selected_model, $claude_api_key, $conversation_history, $relevant_content, $session_id, $testing_data = null) {
7598	4712	try {
7599	4713	// Get bot ID from session or request
7600	4714	$bot_id = $this->get_current_bot_id($session_id);
		@@ -7599,9 +4713,9 @@
7599	4713	// Get bot ID from session or request
7600	4714	$bot_id = $this->get_current_bot_id($session_id);
7601	4715
7602	4716	// Get system prompt instructions using centralized function
7603		- $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
	4717	+ $system_prompt_instructions = $this->get_system_instructions($bot_id);
7604	4718	// Ensure conversation_history is an array
7605	4719	if (!is_array($conversation_history)) {
7606	4720	$conversation_history = array();
7607	4721	}
		@@ -7653,13 +4767,8 @@
7653	4767	array_slice($conversation_history, 0, -1), // Remove the added content
7654	4768	$relevant_content
7655	4769	);
7656	4770
7657		- // Save bot response to transcript
7658		- if (!empty($regular_response) && !empty($session_id)) {
7659		- $this->mxchat_save_chat_message($session_id, 'bot', $regular_response);
7660		- }
7661		-
7662	4771	// Return as JSON with testing data
7663	4772	$response_data = [
7664	4773	'text' => $regular_response,
7665	4774	'html' => '',
		@@ -7678,11 +4787,8 @@
7678	4787	echo json_encode($response_data);
7679	4788	return true; // Indicate we handled the response
7680	4789	}
7681	4790
7682		- // Setup streaming headers now that we know we're actually streaming
7683		- $this->setup_streaming_headers();
7684		-
7685	4791	// Use cURL for streaming support
7686	4792	$ch = curl_init();
7687	4793	curl_setopt($ch, CURLOPT_URL, 'https://api.anthropic.com/v1/messages');
7688	4794	curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
		@@ -7787,35 +4893,20 @@
7787	4893	$claude_api_key,
7788	4894	array_slice($conversation_history, 0, -1), // Remove the added content
7789	4895	$relevant_content
7790	4896	);
7791		-
7792		- // FIXED: Check if regular response returned an error
7793		- if (is_array($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		-
	4897	+
7807	4898	$response_data = [
7808	4899	'text' => $regular_response,
7809	4900	'html' => '',
7810	4901	'session_id' => $session_id
7811	4902	];
7812		-
	4903	+
7813	4904	if ($testing_data !== null) {
7814	4905	$response_data['testing_data'] = $testing_data;
7815	4906	//error_log("MxChat Testing: Added testing data to Claude error fallback");
7816	4907	}
7817		-
	4908	+
7818	4909	header('Content-Type: application/json');
7819	4910	echo json_encode($response_data);
7820	4911	return true;
7821	4912	}
		@@ -7821,29 +4912,9 @@
7821	4912	}
7822	4913
7823	4914	// Save the complete response to maintain chat persistence
7824	4915	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);
	4916	+ $this->mxchat_save_chat_message($session_id, 'bot', $full_response);
7846	4917	}
7847	4918
7848	4919	return true; // Indicate streaming completed successfully
7849	4920
		@@ -7848,9 +4919,9 @@
7848	4919	return true; // Indicate streaming completed successfully
7849	4920
7850	4921	} catch (Exception $e) {
7851	4922	//error_log("MxChat Claude streaming exception: " . $e->getMessage());
7852		-
	4923	+
7853	4924	// Fallback to regular response on exception
7854	4925	$regular_response = $this->mxchat_generate_response_claude(
7855	4926	$selected_model,
7856	4927	$claude_api_key,
		@@ -7856,35 +4927,20 @@
7856	4927	$claude_api_key,
7857	4928	$conversation_history,
7858	4929	$relevant_content
7859	4930	);
7860		-
7861		- // FIXED: Check if regular response returned an error
7862		- if (is_array($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		-
	4931	+
7876	4932	$response_data = [
7877	4933	'text' => $regular_response,
7878	4934	'html' => '',
7879	4935	'session_id' => $session_id
7880	4936	];
7881		-
	4937	+
7882	4938	if ($testing_data !== null) {
7883	4939	$response_data['testing_data'] = $testing_data;
7884	4940	//error_log("MxChat Testing: Added testing data to Claude exception fallback");
7885	4941	}
7886		-
	4942	+
7887	4943	header('Content-Type: application/json');
7888	4944	echo json_encode($response_data);
7889	4945	return true;
7890	4946	}
		@@ -7894,9 +4950,9 @@
7894	4950	// Get bot ID from session or request
7895	4951	$bot_id = $this->get_current_bot_id($session_id);
7896	4952
7897	4953	// Get system prompt instructions using centralized function
7898		- $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
	4954	+ $system_prompt_instructions = $this->get_system_instructions($bot_id);
7899	4955
7900	4956	// Ensure conversation_history is an array
7901	4957	if (!is_array($conversation_history)) {
7902	4958	$conversation_history = array();
		@@ -7936,13 +4992,8 @@
7936	4992	$conversation_history,
7937	4993	$relevant_content
7938	4994	);
7939	4995
7940		- // Save bot response to transcript
7941		- if (!empty($regular_response) && !empty($session_id)) {
7942		- $this->mxchat_save_chat_message($session_id, 'bot', $regular_response);
7943		- }
7944		-
7945	4996	$response_data = [
7946	4997	'text' => $regular_response,
7947	4998	'html' => '',
7948	4999	'session_id' => $session_id
		@@ -7965,11 +5016,8 @@
7965	5016	'temperature' => 0.8,
7966	5017	'stream' => true
7967	5018	]);
7968	5019
7969		- // Setup streaming headers now that we know we're actually streaming
7970		- $this->setup_streaming_headers();
7971		-
7972	5020	// Use cURL for streaming support
7973	5021	$ch = curl_init();
7974	5022	curl_setopt($ch, CURLOPT_URL, 'https://api.x.ai/v1/chat/completions');
7975	5023	curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
		@@ -8070,39 +5118,19 @@
8070	5118	return true;
8071	5119	}
8072	5120
8073	5121	curl_close($ch);
8074		-
	5122	+
8075	5123	// Save the complete response to maintain chat persistence
8076	5124	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);
	5125	+ $this->mxchat_save_chat_message($session_id, 'bot', $full_response);
8098	5126	}
8099		-
	5127	+
8100	5128	return true; // Indicate streaming completed successfully
8101		-
	5129	+
8102	5130	} catch (Exception $e) {
8103	5131	//error_log("MxChat X.AI streaming exception: " . $e->getMessage());
8104		-
	5132	+
8105	5133	// Fallback to regular response
8106	5134	$regular_response = $this->mxchat_generate_response_xai(
8107	5135	$selected_model,
8108	5136	$xai_api_key,
		@@ -8131,9 +5159,9 @@
8131	5159	// Get bot ID from session or request
8132	5160	$bot_id = $this->get_current_bot_id($session_id);
8133	5161
8134	5162	// Get system prompt instructions using centralized function
8135		- $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
	5163	+ $system_prompt_instructions = $this->get_system_instructions($bot_id);
8136	5164
8137	5165	// Ensure conversation_history is an array
8138	5166	if (!is_array($conversation_history)) {
8139	5167	$conversation_history = array();
		@@ -8173,13 +5201,8 @@
8173	5201	$conversation_history,
8174	5202	$relevant_content
8175	5203	);
8176	5204
8177		- // Save bot response to transcript
8178		- if (!empty($regular_response) && !empty($session_id)) {
8179		- $this->mxchat_save_chat_message($session_id, 'bot', $regular_response);
8180		- }
8181		-
8182	5205	$response_data = [
8183	5206	'text' => $regular_response,
8184	5207	'html' => '',
8185	5208	'session_id' => $session_id
		@@ -8202,11 +5225,8 @@
8202	5225	'temperature' => 0.8,
8203	5226	'stream' => true
8204	5227	]);
8205	5228
8206		- // Setup streaming headers now that we know we're actually streaming
8207		- $this->setup_streaming_headers();
8208		-
8209	5229	// Use cURL for streaming support
8210	5230	$ch = curl_init();
8211	5231	curl_setopt($ch, CURLOPT_URL, 'https://api.deepseek.com/v1/chat/completions');
8212	5232	curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
		@@ -8321,39 +5341,19 @@
8321	5341	return true;
8322	5342	}
8323	5343
8324	5344	curl_close($ch);
8325		-
	5345	+
8326	5346	// Save the complete response to maintain chat persistence
8327	5347	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);
	5348	+ $this->mxchat_save_chat_message($session_id, 'bot', $full_response);
8349	5349	}
8350		-
	5350	+
8351	5351	return true; // Indicate streaming completed successfully
8352		-
	5352	+
8353	5353	} catch (Exception $e) {
8354	5354	//error_log("MxChat DeepSeek streaming exception: " . $e->getMessage());
8355		-
	5355	+
8356	5356	// Fallback to regular response
8357	5357	$regular_response = $this->mxchat_generate_response_deepseek(
8358	5358	$selected_model,
8359	5359	$deepseek_api_key,
		@@ -8387,112 +5387,8 @@
8387	5387	return true;
8388	5388	}
8389	5389	}
8390	5390
8391		-
8392		-private function mxchat_generate_response_openrouter($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		- ];
8493		- }
8494		-}
8495	5391	private function mxchat_generate_response_claude($selected_model, $claude_api_key, $conversation_history, $relevant_content) {
8496	5392
8497	5393	// Get bot ID from session or request
8498	5394	$bot_id = $this->get_current_bot_id($session_id);
		@@ -8497,9 +5393,9 @@
8497	5393	// Get bot ID from session or request
8498	5394	$bot_id = $this->get_current_bot_id($session_id);
8499	5395
8500	5396	// Get system prompt instructions using centralized function
8501		- $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
	5397	+ $system_prompt_instructions = $this->get_system_instructions($bot_id);
8502	5398
8503	5399	// Clean and validate conversation history
8504	5400	foreach ($conversation_history as &$message) {
8505	5401	// Convert bot and agent roles to assistant
		@@ -8603,12 +5499,12 @@
8603	5499	$conversation_history = array();
8604	5500	}
8605	5501
8606	5502	// Get bot ID from session or request
8607		- $bot_id = $this->get_current_bot_id('');
	5503	+ $bot_id = $this->get_current_bot_id($session_id);
8608	5504
8609	5505	// Get system prompt instructions using centralized function
8610		- $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
	5506	+ $system_prompt_instructions = $this->get_system_instructions($bot_id);
8611	5507
8612	5508	// Create a new array for the formatted conversation
8613	5509	$formatted_conversation = array();
8614	5510
		@@ -8637,42 +5533,15 @@
8637	5533	);
8638	5534	}
8639	5535	}
8640	5536
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 = [
	5537	+ $body = json_encode([
8653	5538	'model' => $selected_model,
8654	5539	'messages' => $formatted_conversation,
8655	5540	'temperature' => 1,
8656	5541	'stream' => false
8657		- ];
	5542	+ ]);
8658	5543
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	5544	$args = [
8676	5545	'body' => $body,
8677	5546	'headers' => [
8678	5547	'Content-Type' => 'application/json',
		@@ -8688,8 +5557,9 @@
8688	5557	$response = wp_remote_post('https://api.openai.com/v1/chat/completions', $args);
8689	5558
8690	5559	if (is_wp_error($response)) {
8691	5560	$error_message = $response->get_error_message();
	5561	+ //error_log('OpenAI API Error: ' . $error_message);
8692	5562	return [
8693	5563	'error' => esc_html__('Connection error when contacting OpenAI: ', 'mxchat') . esc_html($error_message),
8694	5564	'error_code' => 'openai_connection_error',
8695	5565	'provider' => 'openai'
		@@ -8708,8 +5578,10 @@
8708	5578	$error_type = isset($decoded_response['error']['type'])
8709	5579	? $decoded_response['error']['type']
8710	5580	: 'unknown';
8711	5581
	5582	+ //error_log('OpenAI API HTTP Error: ' . $status_code . ' - ' . $error_message);
	5583	+
8712	5584	// Handle specific error types
8713	5585	switch ($error_type) {
8714	5586	case 'invalid_request_error':
8715	5587	if (strpos($error_message, 'API key') !== false) {
		@@ -8757,8 +5629,9 @@
8757	5629
8758	5630	if (isset($decoded_response['choices'][0]['message']['content'])) {
8759	5631	return trim($decoded_response['choices'][0]['message']['content']);
8760	5632	} else {
	5633	+ //error_log('OpenAI API Response Format Error: ' . print_r($decoded_response, true));
8761	5634	return [
8762	5635	'error' => esc_html__('Unexpected response format from OpenAI.', 'mxchat'),
8763	5636	'error_code' => 'openai_response_format_error',
8764	5637	'provider' => 'openai'
		@@ -8764,8 +5637,9 @@
8764	5637	'provider' => 'openai'
8765	5638	];
8766	5639	}
8767	5640	} catch (Exception $e) {
	5641	+ //error_log('OpenAI Exception: ' . $e->getMessage());
8768	5642	return [
8769	5643	'error' => esc_html__('System error when processing OpenAI request: ', 'mxchat') . esc_html($e->getMessage()),
8770	5644	'error_code' => 'openai_exception',
8771	5645	'provider' => 'openai'
		@@ -8771,9 +5645,8 @@
8771	5645	'provider' => 'openai'
8772	5646	];
8773	5647	}
8774	5648	}
8775		-
8776	5649	private function mxchat_generate_response_xai($selected_model, $xai_api_key, $conversation_history, $relevant_content) {
8777	5650	try {
8778	5651	// Get bot ID from session or request
8779	5652	$bot_id = $this->get_current_bot_id($session_id);
		@@ -8778,9 +5651,9 @@
8778	5651	// Get bot ID from session or request
8779	5652	$bot_id = $this->get_current_bot_id($session_id);
8780	5653
8781	5654	// Get system prompt instructions using centralized function
8782		- $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
	5655	+ $system_prompt_instructions = $this->get_system_instructions($bot_id);
8783	5656
8784	5657	// Add system prompt to relevant content
8785	5658	$content_with_instructions = $system_prompt_instructions . " " . $relevant_content;
8786	5659
		@@ -8977,9 +5850,9 @@
8977	5850	// Get bot ID from session or request
8978	5851	$bot_id = $this->get_current_bot_id($session_id);
8979	5852
8980	5853	// Get system prompt instructions using centralized function
8981		- $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
	5854	+ $system_prompt_instructions = $this->get_system_instructions($bot_id);
8982	5855
8983	5856	// Create a new array for the formatted conversation
8984	5857	$formatted_conversation = array();
8985	5858
		@@ -9136,9 +6009,9 @@
9136	6009	// Get bot ID from session or request
9137	6010	$bot_id = $this->get_current_bot_id($session_id);
9138	6011
9139	6012	// Get system prompt instructions using centralized function
9140		- $system_prompt_instructions = $this->get_system_instructions($bot_id, $session_id);
	6013	+ $system_prompt_instructions = $this->get_system_instructions($bot_id);
9141	6014
9142	6015	// Add system prompt to relevant content
9143	6016	$content_with_instructions = $system_prompt_instructions . " " . $relevant_content;
9144	6017
		@@ -9234,11 +6107,9 @@
9234	6107	]
9235	6108	]);
9236	6109
9237	6110	// 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;
	6111	+ $api_endpoint = 'https://generativelanguage.googleapis.com/v1/models/' . $selected_model . ':generateContent?key=' . $gemini_api_key;
9241	6112
9242	6113	// Set up the API request
9243	6114	$args = [
9244	6115	'body' => $body,
		@@ -9280,9 +6151,9 @@
9280	6151
9281	6152
9282	6153	public function test_streaming_request() {
9283	6154	$options = get_option('mxchat_options', []);
9284		- $model = $options['model'] ?? 'gpt-5.1-chat-latest';
	6155	+ $model = $options['model'] ?? 'gpt-4o';
9285	6156
9286	6157	// Detect provider from model prefix
9287	6158	$provider = strtolower(explode('-', $model)[0]);
9288	6159
		@@ -9465,54 +6336,35 @@
9465	6336	}
9466	6337
9467	6338
9468	6339	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';
9472		-
9473		- // Always enqueue CSS immediately
	6340	+ // Define version numbers for the styles and scripts
	6341	+ $chat_style_version = '2.4.6';
	6342	+ $chat_script_version = '2.4.6';
	6343	+ // Enqueue the script
	6344	+ wp_enqueue_script(
	6345	+ 'mxchat-chat-js',
	6346	+ plugin_dir_url(__FILE__) . '../js/chat-script.js',
	6347	+ array('jquery'),
	6348	+ $chat_script_version,
	6349	+ true
	6350	+ );
	6351	+ // Enqueue the CSS
9474	6352	wp_enqueue_style(
9475	6353	'mxchat-chat-css',
9476	6354	plugin_dir_url(__FILE__) . '../css/chat-style.css',
9477	6355	array(),
9478		- MXCHAT_VERSION
	6356	+ $chat_style_version
9479	6357	);
9480		-
9481		- // Handle script loading based on strategy
9482		- if ($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		-
	6358	+ // Fetch options from the database
	6359	+ $this->options = get_option('mxchat_options');
9502	6360	$prompts_options = get_option('mxchat_prompts_options', array());
9503		-
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		-
	6361	+
9510	6362	// Prepare settings for JavaScript
9511	6363	$style_settings = array(
9512	6364	'ajax_url' => admin_url('admin-ajax.php'),
9513	6365	'nonce' => wp_create_nonce('mxchat_chat_nonce'),
9514		- 'model' => isset($this->options['model']) ? $this->options['model'] : 'gpt-5.1-chat-latest',
	6366	+ 'model' => isset($this->options['model']) ? $this->options['model'] : 'gpt-4o',
9515	6367	'enable_streaming_toggle' => isset($this->options['enable_streaming_toggle']) ? $this->options['enable_streaming_toggle'] : 'on',
9516	6368	'contextual_awareness_toggle' => isset($this->options['contextual_awareness_toggle']) ? $this->options['contextual_awareness_toggle'] : 'off',
9517	6369	'link_target_toggle' => $this->options['link_target_toggle'] ?? 'off',
9518	6370	'rate_limit_message' => $this->options['rate_limit_message'] ?? 'Rate limit exceeded. Please try again later.',
		@@ -9539,140 +6391,15 @@
9539	6391	'use_pinecone' => $prompts_options['mxchat_use_pinecone'] ?? '0',
9540	6392	'email_collection_enabled' => $this->options['enable_email_block'] ?? 'off', // FIXED
9541	6393	'initial_email_state' => null, // Also fixed this undefined variable
9542	6394	'skip_email_check' => true,
9543		- 'pinecone_enabled' => isset($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		- 'print_button_enabled' => $this->options['print_button_enabled'] ?? 'on',
9547		- 'print_button_label' => esc_html__('Download Transcript', 'mxchat'),
9548		- 'print_header_title' => esc_html(get_bloginfo('name')) . ' — ' . esc_html__('Chat transcript', 'mxchat'),
	6395	+ 'pinecone_enabled' => isset($prompts_options['mxchat_use_pinecone']) && $prompts_options['mxchat_use_pinecone'] === '1'
9549	6396	);
9550		-
9551		- // For normal/defer loading, use wp_localize_script
9552		- // For delayed loading, we store settings in a transient to be output inline
9553		- if ($loading_strategy === 'default' || $loading_strategy === 'defer') {
9554		- wp_localize_script('mxchat-chat-js', 'mxchatChat', $style_settings);
9555		- } else {
9556		- // Store settings for the delayed loader to use
9557		- set_transient('mxchat_delayed_settings_' . get_current_user_id(), $style_settings, 60);
9558		- }
	6397	+ // Pass the settings to the script
	6398	+ wp_localize_script('mxchat-chat-js', 'mxchatChat', $style_settings);
9559	6399	}
9560	6400
9561		-/**
9562		- * Output the delayed script loader for performance optimization
9563		- */
9564		-public function mxchat_output_delayed_script_loader() {
9565		- $this->options = get_option('mxchat_options');
9566		- $loading_strategy = isset($this->options['script_loading_strategy']) ? $this->options['script_loading_strategy'] : 'default';
9567		- $script_url = plugin_dir_url(__FILE__) . '../js/chat-script.js?ver=' . MXCHAT_VERSION;
9568	6401
9569		- // Get the stored settings
9570		- $prompts_options = get_option('mxchat_prompts_options', array());
9571		- $theme_options = get_option('mxchat_theme_options', array());
9572		- $ai_theme_active = !empty($theme_options['active_ai_theme_css']);
9573		- $has_bot_theme_assignments = !empty($theme_options['bot_theme_assignments']);
9574		- $skip_inline_colors = $ai_theme_active || $has_bot_theme_assignments;
9575		-
9576		- $style_settings = array(
9577		- 'ajax_url' => admin_url('admin-ajax.php'),
9578		- 'nonce' => wp_create_nonce('mxchat_chat_nonce'),
9579		- 'model' => isset($this->options['model']) ? $this->options['model'] : 'gpt-5.1-chat-latest',
9580		- 'enable_streaming_toggle' => isset($this->options['enable_streaming_toggle']) ? $this->options['enable_streaming_toggle'] : 'on',
9581		- 'contextual_awareness_toggle' => isset($this->options['contextual_awareness_toggle']) ? $this->options['contextual_awareness_toggle'] : 'off',
9582		- 'link_target_toggle' => $this->options['link_target_toggle'] ?? 'off',
9583		- 'rate_limit_message' => $this->options['rate_limit_message'] ?? 'Rate limit exceeded. Please try again later.',
9584		- 'complianz_toggle' => isset($this->options['complianz_toggle']) && $this->options['complianz_toggle'] === 'on',
9585		- 'user_message_bg_color' => $this->options['user_message_bg_color'] ?? '#fff',
9586		- 'user_message_font_color' => $this->options['user_message_font_color'] ?? '#212121',
9587		- 'bot_message_bg_color' => $this->options['bot_message_bg_color'] ?? '#212121',
9588		- 'bot_message_font_color' => $this->options['bot_message_font_color'] ?? '#fff',
9589		- 'top_bar_bg_color' => $this->options['top_bar_bg_color'] ?? '#212121',
9590		- 'send_button_font_color' => $this->options['send_button_font_color'] ?? '#212121',
9591		- 'close_button_color' => $this->options['close_button_color'] ?? '#fff',
9592		- 'chatbot_background_color' => $this->options['chatbot_background_color'] ?? '#212121',
9593		- 'chatbot_bg_color' => $this->options['chatbot_bg_color'] ?? '#fff',
9594		- 'icon_color' => $this->options['icon_color'] ?? '#fff',
9595		- 'chat_input_font_color' => $this->options['chat_input_font_color'] ?? '#212121',
9596		- 'chat_persistence_toggle' => $this->options['chat_persistence_toggle'] ?? 'off',
9597		- 'appendWidgetToBody' => $this->options['append_to_body'] ?? 'off',
9598		- 'live_agent_message_bg_color' => $this->options['live_agent_message_bg_color'] ?? '#ffffff',
9599		- 'live_agent_message_font_color' => $this->options['live_agent_message_font_color'] ?? '#333333',
9600		- 'chat_toolbar_toggle' => $this->options['chat_toolbar_toggle'] ?? 'off',
9601		- 'mode_indicator_bg_color' => $this->options['mode_indicator_bg_color'] ?? '#767676',
9602		- 'mode_indicator_font_color' => $this->options['mode_indicator_font_color'] ?? '#ffffff',
9603		- 'toolbar_icon_color' => $this->options['toolbar_icon_color'] ?? '#212121',
9604		- 'use_pinecone' => $prompts_options['mxchat_use_pinecone'] ?? '0',
9605		- 'email_collection_enabled' => $this->options['enable_email_block'] ?? 'off',
9606		- 'initial_email_state' => null,
9607		- 'skip_email_check' => true,
9608		- 'pinecone_enabled' => isset($prompts_options['mxchat_use_pinecone']) && $prompts_options['mxchat_use_pinecone'] === '1',
9609		- 'skip_inline_colors' => $skip_inline_colors,
9610		- 'bot_theme_assignments' => $theme_options['bot_theme_assignments'] ?? array(),
9611		- 'print_button_enabled' => $this->options['print_button_enabled'] ?? 'on',
9612		- 'print_button_label' => esc_html__('Download Transcript', 'mxchat'),
9613		- 'print_header_title' => esc_html(get_bloginfo('name')) . ' — ' . esc_html__('Chat transcript', 'mxchat'),
9614		- );
9615		-
9616		- // Determine delay time based on strategy
9617		- $delay_ms = 0;
9618		- switch ($loading_strategy) {
9619		- case 'delay_1s':
9620		- $delay_ms = 1000;
9621		- break;
9622		- case 'delay_3s':
9623		- $delay_ms = 3000;
9624		- break;
9625		- case 'delay_5s':
9626		- $delay_ms = 5000;
9627		- break;
9628		- }
9629		-
9630		- ?>
9631		- <script type="text/javascript">
9632		- (function() {
9633		- var mxchatLoaded = false;
9634		- var mxchatChat = <?php echo wp_json_encode($style_settings); ?>;
9635		- window.mxchatChat = mxchatChat;
9636		-
9637		- function loadMxChatScript() {
9638		- if (mxchatLoaded) return;
9639		- mxchatLoaded = true;
9640		-
9641		- function appendChatScript() {
9642		- var script = document.createElement('script');
9643		- script.src = <?php echo wp_json_encode($script_url); ?>;
9644		- script.type = 'text/javascript';
9645		- document.body.appendChild(script);
9646		- }
9647		-
9648		- if (typeof jQuery !== 'undefined') {
9649		- appendChatScript();
9650		- } else {
9651		- var jq = document.createElement('script');
9652		- jq.src = <?php echo wp_json_encode(includes_url('js/jquery/jquery.min.js')); ?>;
9653		- jq.onload = appendChatScript;
9654		- document.body.appendChild(jq);
9655		- }
9656		- }
9657		-
9658		- <?php if ($loading_strategy === 'on_interaction'): ?>
9659		- // Load on user interaction
9660		- var events = ['scroll', 'mousemove', 'touchstart', 'keydown', 'click'];
9661		- events.forEach(function(evt) {
9662		- window.addEventListener(evt, loadMxChatScript, {once: true, passive: true});
9663		- });
9664		- // Fallback: load after 8 seconds if no interaction
9665		- setTimeout(loadMxChatScript, 8000);
9666		- <?php else: ?>
9667		- // Load after specified delay
9668		- setTimeout(loadMxChatScript, <?php echo intval($delay_ms); ?>);
9669		- <?php endif; ?>
9670		- })();
9671		- </script>
9672		- <?php
9673		-}
9674		-
9675	6402	/**
9676	6403	* Setup the cron jobs for rate limits with guard against multiple calls
9677	6404	*/
9678	6405	public function setup_rate_limit_cron_jobs() {
		@@ -10207,11 +6934,8 @@
10207	6934
10208	6935	/**
10209	6936	* AJAX handler to get system information for testing panel
10210	6937	*/
10211		-/**
10212		- * AJAX handler to get system information for testing panel
10213		- */
10214	6938	public function mxchat_get_system_info() {
10215	6939	// Verify nonce for security
10216	6940	if (!wp_verify_nonce($_POST['nonce'], 'mxchat_test_nonce')) {
10217	6941	wp_send_json_error(['message' => 'Invalid nonce']);
		@@ -10228,25 +6952,11 @@
10228	6952	$system_prompt = isset($this->options['system_prompt_instructions'])
10229	6953	? $this->options['system_prompt_instructions']
10230	6954	: 'No system prompt configured';
10231	6955
10232		- // Get selected model
10233		- $selected_model = isset($this->options['model']) ? $this->options['model'] : 'gpt-5.1-chat-latest';
	6956	+ // Get selected model - FIXED: Use $this->options instead of $current_options
	6957	+ $selected_model = isset($this->options['model']) ? $this->options['model'] : 'gpt-4o';
10234	6958
10235		- // Check if OpenRouter is being used
10236		- $is_openrouter = ($selected_model === 'openrouter');
10237		- $openrouter_model = '';
10238		-
10239		- if ($is_openrouter) {
10240		- // Get the actual OpenRouter model that's selected
10241		- $openrouter_model = isset($this->options['openrouter_selected_model'])
10242		- ? $this->options['openrouter_selected_model']
10243		- : 'No OpenRouter model selected';
10244		-
10245		- // Update selected_model display to show both
10246		- $selected_model = 'OpenRouter: ' . $openrouter_model;
10247		- }
10248		-
10249	6959	// Get API key status (just check if they exist, don't expose the keys)
10250	6960	$api_status = [];
10251	6961	$api_status['openai'] = !empty($this->options['api_key']);
10252	6962	$api_status['claude'] = !empty($this->options['claude_api_key']);
		@@ -10252,15 +6962,12 @@
10252	6962	$api_status['claude'] = !empty($this->options['claude_api_key']);
10253	6963	$api_status['gemini'] = !empty($this->options['gemini_api_key']);
10254	6964	$api_status['xai'] = !empty($this->options['xai_api_key']);
10255	6965	$api_status['deepseek'] = !empty($this->options['deepseek_api_key']);
10256		- $api_status['openrouter'] = !empty($this->options['openrouter_api_key']);
10257	6966
10258	6967	wp_send_json_success([
10259	6968	'system_prompt' => $system_prompt,
10260	6969	'selected_model' => $selected_model,
10261		- 'is_openrouter' => $is_openrouter,
10262		- 'openrouter_model' => $openrouter_model,
10263	6970	'api_status' => $api_status
10264	6971	]);
10265	6972	}
10266	6973
		@@ -10299,42 +7006,24 @@
10299	7006	if (!wp_verify_nonce($_POST['nonce'], 'mxchat_test_nonce')) {
10300	7007	wp_send_json_error(['message' => 'Invalid nonce']);
10301	7008	return;
10302	7009	}
10303		-
	7010	+
10304	7011	// Only allow admin users
10305	7012	if (!current_user_can('administrator')) {
10306	7013	wp_send_json_error(['message' => 'Unauthorized']);
10307	7014	return;
10308	7015	}
10309		-
10310		- // Check OpenAI Vector Store first (takes priority)
10311		- $vectorstore_options = get_option('mxchat_openai_vectorstore_options', array());
10312		- $use_vectorstore = (isset($vectorstore_options['mxchat_use_openai_vectorstore']) && $vectorstore_options['mxchat_use_openai_vectorstore'] === '1');
10313		-
10314		- if ($use_vectorstore) {
10315		- $vectorstore_ids = $vectorstore_options['mxchat_openai_vectorstore_ids'] ?? '';
10316		- $id_count = !empty($vectorstore_ids) ? count(array_filter(array_map('trim', explode(',', $vectorstore_ids)))) : 0;
10317		-
10318		- $kb_info = [
10319		- 'type' => 'OpenAI Vector Store',
10320		- 'status' => 'Active',
10321		- 'documents' => $id_count > 0 ? $id_count . ' vector store' . ($id_count > 1 ? 's' : '') . ' configured' : 'No vector stores configured'
10322		- ];
10323		-
10324		- wp_send_json_success($kb_info);
10325		- return;
10326		- }
10327		-
	7016	+
10328	7017	// Check Pinecone vs WordPress
10329	7018	$addon_options = get_option('mxchat_pinecone_addon_options', array());
10330	7019	$use_pinecone = (isset($addon_options['mxchat_use_pinecone']) && $addon_options['mxchat_use_pinecone'] === '1');
10331		-
	7020	+
10332	7021	$kb_info = [
10333	7022	'type' => $use_pinecone ? 'Pinecone' : 'WordPress Database',
10334	7023	'status' => 'Active'
10335	7024	];
10336		-
	7025	+
10337	7026	// Get document count
10338	7027	if ($use_pinecone) {
10339	7028	$kb_info['documents'] = 'Connected to Pinecone';
10340	7029	$kb_info['api_configured'] = !empty($addon_options['mxchat_pinecone_api_key']);
		@@ -10344,9 +7033,9 @@
10344	7033	$table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
10345	7034	$count = $wpdb->get_var("SELECT COUNT(*) FROM {$table_name}");
10346	7035	$kb_info['documents'] = $count ? $count . ' documents' : 'No documents';
10347	7036	}
10348		-
	7037	+
10349	7038	wp_send_json_success($kb_info);
10350	7039	}
10351	7040
10352	7041	/**
		@@ -10428,13 +7117,9 @@
10428	7117	// Clear any other session-specific transients
10429	7118	delete_transient("mxchat_waiting_for_pdf_url_{$session_id}");
10430	7119	delete_transient("mxchat_include_pdf_in_context_{$session_id}");
10431	7120	delete_transient("mxchat_include_word_in_context_{$session_id}");
10432		-
10433		- // Clear form addon state (pending forms and submitted forms)
10434		- delete_option("mxchat_pending_form_{$session_id}");
10435		- delete_option("mxchat_submitted_forms_{$session_id}");
10436		-
	7121	+
10437	7122	//error_log("MxChat: Cleared all data for session: {$session_id}");
10438	7123	}
10439	7124
10440	7125	/**
		@@ -10609,169 +7294,8 @@
10609	7294	wp_send_json_success(['message' => 'Originating page tracked']);
10610	7295	wp_die();
10611	7296	}
10612	7297
10613		-/**
10614		- * Validate and clean URLs from AI response
10615		- * Removes any URLs that aren't in the knowledge base
10616		- *
10617		- * @param string $response_text The AI-generated response
10618		- * @param array $valid_urls Array of URLs from the knowledge base
10619		- * @return string Cleaned response with invalid URLs removed/flagged
10620		- */
10621		-private function validate_and_clean_urls($response_text, $valid_urls) {
10622		- // DEBUG: Log what we're working with
10623		- //error_log("=== MxChat URL Validation Debug ===");
10624		- //error_log("Valid URLs count: " . count($valid_urls));
10625		- //error_log("Valid URLs: " . print_r($valid_urls, true));
10626		- //error_log("Response text length: " . strlen($response_text));
10627		- //error_log("Response text preview: " . substr($response_text, 0, 500));
10628		-
10629		- // If no valid URLs provided or empty response, return as-is
10630		- if (empty($valid_urls) || empty($response_text)) {
10631		- //error_log("Validation skipped - empty valid_urls or response");
10632		- return $response_text;
10633		- }
10634		-
10635		- // Extract all URLs from the AI response
10636		- // This regex matches http:// and https:// URLs
10637		- preg_match_all(
10638		- '#\bhttps?://[^\s<>"\')\]]+#i',
10639		- $response_text,
10640		- $matches
10641		- );
10642		-
10643		- // If no URLs found in response, return as-is
10644		- if (empty($matches[0])) {
10645		- //error_log("No URLs found in response");
10646		- return $response_text;
10647		- }
10648		-
10649		- $found_urls = $matches[0];
10650		- $cleaned_response = $response_text;
10651		- $removed_count = 0;
10652		-
10653		- // Normalize valid URLs for comparison (remove trailing slashes, fragments, etc.)
10654		- $normalized_valid_urls = array_map(function($url) {
10655		- // Remove trailing slash
10656		- $url = rtrim($url, '/');
10657		- // Remove URL fragments (#section)
10658		- $url = preg_replace('/#.*$/', '', $url);
10659		- // Remove trailing punctuation that might have been captured
10660		- $url = rtrim($url, '.,;:!?');
10661		- return $url;
10662		- }, $valid_urls);
10663		-
10664		- //error_log("Normalized valid URLs: " . print_r($normalized_valid_urls, true));
10665		-
10666		- foreach ($found_urls as $found_url) {
10667		- // Clean up the found URL (remove trailing punctuation that might have been captured)
10668		- $clean_found_url = rtrim($found_url, '.,;:!?)');
10669		-
10670		- // DEBUG: Log each URL being checked
10671		- //error_log("Checking found URL: " . $found_url);
10672		-
10673		- // Normalize for comparison
10674		- $normalized_found = rtrim($clean_found_url, '/');
10675		- $normalized_found = preg_replace('/#.*$/', '', $normalized_found);
10676		-
10677		- //error_log("Normalized found URL: " . $normalized_found);
10678		-
10679		- // Check if this URL exists in our valid URLs list
10680		- $is_valid = false;
10681		-
10682		- //error_log("Starting validation checks for: " . $normalized_found);
10683		-
10684		- // First, try exact match
10685		- if (in_array($normalized_found, $normalized_valid_urls)) {
10686		- $is_valid = true;
10687		- //error_log("EXACT MATCH FOUND");
10688		- } else {
10689		- //error_log("No exact match, checking variations...");
10690		- // If no exact match, check if it's a variation (with query params, etc.)
10691		- foreach ($normalized_valid_urls as $valid_url) {
10692		- //error_log(" Comparing against valid URL: " . $valid_url);
10693		-
10694		- // Check if the found URL starts with a valid URL (handles query params)
10695		- if (strpos($normalized_found, $valid_url) === 0) {
10696		- // Check what comes after the valid URL
10697		- $remainder = substr($normalized_found, strlen($valid_url));
10698		-
10699		- // Only valid if:
10700		- // 1. Exact match (remainder is empty)
10701		- // 2. Query params (starts with ?)
10702		- // 3. Fragment (starts with #)
10703		- if (empty($remainder) || $remainder[0] === '?' || $remainder[0] === '#') {
10704		- $is_valid = true;
10705		- //error_log(" MATCH: Found URL is valid variation of base URL");
10706		- break;
10707		- } else {
10708		- //error_log(" NOT A MATCH: Found URL extends path beyond valid URL (remainder: " . $remainder . ")");
10709		- }
10710		- }
10711		- // Also check the reverse (in case valid URL has query params)
10712		- if (strpos($valid_url, $normalized_found) === 0) {
10713		- $is_valid = true;
10714		- //error_log(" MATCH: Valid URL starts with found URL");
10715		- break;
10716		- }
10717		- }
10718		-
10719		- if (!$is_valid) {
10720		- //error_log("NO MATCH FOUND - URL should be removed");
10721		- }
10722		- }
10723		-
10724		- // If URL is not valid, remove it from the response
10725		- if (!$is_valid) {
10726		- // Log the removal for debugging
10727		- //error_log("MxChat: Removed hallucinated URL: " . $found_url);
10728		- //error_log("MxChat: Valid URLs were: " . implode(', ', array_slice($normalized_valid_urls, 0, 5)));
10729		-
10730		- $removed_count++;
10731		-
10732		- // Check if URL is part of a markdown link: [text](url)
10733		- $markdown_pattern = '/\[([^\]]+)\]\(' . preg_quote($found_url, '/') . '\)/';
10734		- if (preg_match($markdown_pattern, $cleaned_response)) {
10735		- //error_log("Found markdown link, removing but keeping text");
10736		- // Remove the markdown link but keep the text
10737		- $cleaned_response = preg_replace($markdown_pattern, '$1', $cleaned_response);
10738		- }
10739		- // Check if URL is part of an HTML link: <a href="url">text</a>
10740		- else if (preg_match('/<a[^>]*href=["\']' . preg_quote($found_url, '/') . '["\'][^>]*>(.*?)<\/a>/i', $cleaned_response, $link_match)) {
10741		- //error_log("Found HTML link, removing but keeping text");
10742		- // Remove the HTML link but keep the text
10743		- $link_text = $link_match[1];
10744		- $cleaned_response = preg_replace(
10745		- '/<a[^>]*href=["\']' . preg_quote($found_url, '/') . '["\'][^>]*>.*?<\/a>/i',
10746		- $link_text,
10747		- $cleaned_response
10748		- );
10749		- }
10750		- // Otherwise just remove the bare URL
10751		- else {
10752		- //error_log("Removing bare URL");
10753		- $cleaned_response = str_replace($found_url, '', $cleaned_response);
10754		- }
10755		- }
10756		- }
10757		-
10758		- // Log summary if any URLs were removed
10759		- if ($removed_count > 0) {
10760		- //error_log("MxChat: URL Validation Summary - Removed {$removed_count} hallucinated URL(s)");
10761		- } else {
10762		- //error_log("MxChat: URL Validation Summary - No URLs removed, all were valid");
10763		- }
10764		-
10765		- // Clean up any double spaces or awkward punctuation left behind
10766		- // IMPORTANT: Only collapse horizontal whitespace (spaces/tabs), preserve newlines for markdown formatting
10767		- $cleaned_response = preg_replace('/[^\S\n]+/', ' ', $cleaned_response); // Collapse spaces/tabs but NOT newlines
10768		- $cleaned_response = preg_replace('/[^\S\n]+([.,;:!?])/', '$1', $cleaned_response); // Same for punctuation cleanup
10769		-
10770		- //error_log("Final cleaned response: " . $cleaned_response);
10771		-
10772		- return trim($cleaned_response);
10773		-}
10774	7298
10775	7299	/**
10776	7300	* AJAX handler to get current chat mode for a session
10777	7301	*/