| 1 |
<?php |
| 2 |
if (!defined('ABSPATH')) { |
| 3 |
exit; |
| 4 |
} |
| 5 |
|
| 6 |
class MxChat_Integrator { |
| 7 |
private $options; |
| 8 |
private $chat_count; |
| 9 |
|
| 10 |
public function __construct() { |
| 11 |
$this->options = get_option('mxchat_options'); |
| 12 |
$this->chat_count = get_option('mxchat_chat_count', 0); |
| 13 |
|
| 14 |
// Add WooCommerce hooks |
| 15 |
add_action('wp_insert_post', array($this, 'mxchat_handle_product_change'), 10, 3); |
| 16 |
|
| 17 |
// Ensure embeddings are removed when a product is moved to trash or permanently deleted |
| 18 |
add_action('wp_trash_post', array($this, 'mxchat_handle_product_delete')); |
| 19 |
add_action('before_delete_post', array($this, 'mxchat_handle_product_delete')); |
| 20 |
|
| 21 |
add_action('wp_enqueue_scripts', array($this, 'mxchat_enqueue_scripts_styles')); |
| 22 |
add_action('wp_ajax_mxchat_handle_chat_request', array($this, 'mxchat_handle_chat_request')); |
| 23 |
add_action('wp_ajax_nopriv_mxchat_handle_chat_request', array($this, 'mxchat_handle_chat_request')); |
| 24 |
|
| 25 |
add_action('wp_ajax_mxchat_dismiss_pre_chat_message', array($this, 'mxchat_dismiss_pre_chat_message')); |
| 26 |
add_action('wp_ajax_nopriv_mxchat_dismiss_pre_chat_message', array($this, 'mxchat_dismiss_pre_chat_message')); |
| 27 |
// Add the AJAX actions for checking if the pre-chat message was dismissed |
| 28 |
add_action('wp_ajax_mxchat_check_pre_chat_message_status', array($this, 'mxchat_check_pre_chat_message_status')); |
| 29 |
add_action('wp_ajax_nopriv_mxchat_check_pre_chat_message_status', array($this, 'mxchat_check_pre_chat_message_status')); |
| 30 |
|
| 31 |
add_action('wp_ajax_mxchat_fetch_conversation_history', [$this, 'mxchat_fetch_conversation_history']); |
| 32 |
add_action('wp_ajax_nopriv_mxchat_fetch_conversation_history', [$this, 'mxchat_fetch_conversation_history']); |
| 33 |
|
| 34 |
|
| 35 |
add_action('wp_ajax_mxchat_add_to_cart', [$this, 'mxchat_add_to_cart']); |
| 36 |
add_action('wp_ajax_nopriv_mxchat_add_to_cart', [$this, 'mxchat_add_to_cart']); |
| 37 |
|
| 38 |
if (!wp_next_scheduled('mxchat_reset_rate_limits')) { |
| 39 |
wp_schedule_event(time(), 'daily', 'mxchat_reset_rate_limits'); |
| 40 |
} |
| 41 |
|
| 42 |
add_action('mxchat_reset_rate_limits', array($this, 'mxchat_reset_rate_limits')); |
| 43 |
} |
| 44 |
|
| 45 |
public function mxchat_handle_product_change($post_id, $post, $update) { |
| 46 |
// Ensure this is a product post type |
| 47 |
if ($post->post_type !== 'product') { |
| 48 |
return; |
| 49 |
} |
| 50 |
|
| 51 |
// Only generate embeddings if the product is published |
| 52 |
if ($post->post_status === 'publish') { |
| 53 |
// Delay the embedding slightly to ensure all product data is available |
| 54 |
add_action('shutdown', function() use ($post_id) { |
| 55 |
$product = wc_get_product($post_id); |
| 56 |
if ($product && $product->get_price() !== '') { |
| 57 |
$this->mxchat_store_product_embedding($product); |
| 58 |
} else { |
| 59 |
// Optionally, log or handle the case where product data is incomplete |
| 60 |
// error_log("Product {$post_id} does not have complete data. Embedding not generated."); |
| 61 |
} |
| 62 |
}); |
| 63 |
} |
| 64 |
} |
| 65 |
|
| 66 |
public function mxchat_handle_product_delete($post_id) { |
| 67 |
if (get_post_type($post_id) !== 'product') { |
| 68 |
return; |
| 69 |
} |
| 70 |
|
| 71 |
global $wpdb; |
| 72 |
$table_name = $wpdb->prefix . 'mxchat_system_prompt_content'; |
| 73 |
|
| 74 |
// Delete the embedding associated with this product |
| 75 |
$wpdb->delete($table_name, array('source_url' => get_permalink($post_id)), array('%s')); |
| 76 |
} |
| 77 |
|
| 78 |
private function mxchat_store_product_embedding($product) { |
| 79 |
if (isset($this->options['enable_woocommerce_integration']) && $this->options['enable_woocommerce_integration'] === '1') { |
| 80 |
|
| 81 |
$source_url = get_permalink($product->get_id()); |
| 82 |
$regular_price = $product->get_regular_price(); |
| 83 |
$sale_price = $product->get_sale_price(); |
| 84 |
$price = $sale_price ?: $regular_price; |
| 85 |
|
| 86 |
$description = $product->get_description() . "\n\n" . |
| 87 |
"Short Description: " . $product->get_short_description() . "\n" . |
| 88 |
"Price: " . $regular_price . "\n" . |
| 89 |
"Sale Price: " . ($sale_price ?: 'N/A') . "\n" . |
| 90 |
"SKU: " . $product->get_sku(); |
| 91 |
|
| 92 |
global $wpdb; |
| 93 |
$table_name = $wpdb->prefix . 'mxchat_system_prompt_content'; |
| 94 |
|
| 95 |
// Delete any existing embedding for this product |
| 96 |
$wpdb->delete($table_name, array('source_url' => $source_url), array('%s')); |
| 97 |
|
| 98 |
// Submit the new content and embedding to the database |
| 99 |
MxChat_Utils::submit_content_to_db($description, $source_url, $this->options['api_key']); |
| 100 |
} |
| 101 |
} |
| 102 |
|
| 103 |
|
| 104 |
|
| 105 |
|
| 106 |
|
| 107 |
private function mxchat_increment_chat_count() { |
| 108 |
$chat_count = get_option('mxchat_chat_count', 0); |
| 109 |
$chat_count++; |
| 110 |
update_option('mxchat_chat_count', $chat_count); |
| 111 |
} |
| 112 |
|
| 113 |
function mxchat_fetch_conversation_history() { |
| 114 |
if (empty($_POST['session_id'])) { |
| 115 |
wp_send_json_error(['message' => 'Session ID missing.']); |
| 116 |
wp_die(); |
| 117 |
} |
| 118 |
|
| 119 |
$session_id = sanitize_text_field($_POST['session_id']); |
| 120 |
$history = get_option("mxchat_history_{$session_id}", []); // Retrieve stored history |
| 121 |
|
| 122 |
if (empty($history)) { |
| 123 |
wp_send_json_error(['message' => 'No history found.']); |
| 124 |
wp_die(); |
| 125 |
} |
| 126 |
|
| 127 |
wp_send_json_success(['conversation' => $history]); |
| 128 |
wp_die(); |
| 129 |
} |
| 130 |
private function mxchat_fetch_conversation_history_for_ajax($session_id) { |
| 131 |
$history = get_option("mxchat_history_{$session_id}", []); // Retrieve stored history based on session ID |
| 132 |
$formatted_history = []; |
| 133 |
|
| 134 |
// Format the history to align with the expected structure for OpenAI |
| 135 |
foreach ($history as $entry) { |
| 136 |
$formatted_history[] = [ |
| 137 |
'role' => $entry['role'], // Ensure this matches 'user' or 'assistant' |
| 138 |
'content' => $entry['content'] |
| 139 |
]; |
| 140 |
} |
| 141 |
|
| 142 |
return $formatted_history; |
| 143 |
} |
| 144 |
private function mxchat_fetch_conversation_history_for_ai($session_id) { |
| 145 |
$history = get_option("mxchat_history_{$session_id}", []); |
| 146 |
|
| 147 |
$formatted_history = []; |
| 148 |
|
| 149 |
foreach ($history as $entry) { |
| 150 |
// Skip messages containing HTML |
| 151 |
if ($entry['content'] !== strip_tags($entry['content'])) { |
| 152 |
continue; |
| 153 |
} |
| 154 |
|
| 155 |
$formatted_history[] = [ |
| 156 |
'role' => $entry['role'], |
| 157 |
'content' => $entry['content'] |
| 158 |
]; |
| 159 |
} |
| 160 |
|
| 161 |
return $formatted_history; |
| 162 |
} |
| 163 |
|
| 164 |
|
| 165 |
private function mxchat_save_chat_message($session_id, $role, $message) { |
| 166 |
global $wpdb; |
| 167 |
$table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; |
| 168 |
|
| 169 |
$user_id = is_user_logged_in() ? get_current_user_id() : 0; |
| 170 |
$user_identifier = MxChat_User::mxchat_get_user_identifier(); |
| 171 |
$user_email = MxChat_User::mxchat_get_user_email(); |
| 172 |
|
| 173 |
$history = get_option("mxchat_history_{$session_id}", []); |
| 174 |
$history[] = ['role' => $role, 'content' => $message]; |
| 175 |
update_option("mxchat_history_{$session_id}", $history); |
| 176 |
|
| 177 |
$wpdb->insert($table_name, [ |
| 178 |
'user_id' => $user_id, |
| 179 |
'user_identifier' => $user_identifier, |
| 180 |
'user_email' => $user_email, |
| 181 |
'session_id' => $session_id, |
| 182 |
'role' => $role, |
| 183 |
'message' => $message, |
| 184 |
'timestamp' => current_time('mysql', 1) |
| 185 |
]); |
| 186 |
} |
| 187 |
|
| 188 |
|
| 189 |
public function mxchat_handle_chat_request() { |
| 190 |
global $wpdb; |
| 191 |
|
| 192 |
// Get and sanitize the user identifier |
| 193 |
$user_id = $this->mxchat_get_user_identifier(); |
| 194 |
$user_id = sanitize_key($user_id); |
| 195 |
|
| 196 |
// Setup rate limiting |
| 197 |
$rate_limit_transient_key = 'mxchat_chat_limit_' . $user_id; |
| 198 |
$chat_count = get_transient($rate_limit_transient_key) ?: 0; |
| 199 |
|
| 200 |
// Retrieve the session ID from the client's POST data |
| 201 |
$session_id = isset($_POST['session_id']) ? sanitize_text_field($_POST['session_id']) : ''; |
| 202 |
|
| 203 |
if (empty($session_id)) { |
| 204 |
wp_send_json_error('Session ID is missing.'); |
| 205 |
wp_die(); |
| 206 |
} |
| 207 |
|
| 208 |
// Determine the rate limit based on login status |
| 209 |
$rate_limit_option = is_user_logged_in() |
| 210 |
? ($this->options['rate_limit_logged_in'] ?? '100') |
| 211 |
: ($this->options['rate_limit_logged_out'] ?? '10'); |
| 212 |
|
| 213 |
if ($rate_limit_option !== 'unlimited' && $chat_count >= intval($rate_limit_option)) { |
| 214 |
$rate_limit_message = $this->options['rate_limit_message'] ?? 'Rate limit exceeded. Please try again later.'; |
| 215 |
wp_send_json_error(['message' => $rate_limit_message]); |
| 216 |
wp_die(); |
| 217 |
} |
| 218 |
|
| 219 |
// Increment chat count only if limit is not 'unlimited' |
| 220 |
if ($rate_limit_option !== 'unlimited') { |
| 221 |
set_transient($rate_limit_transient_key, $chat_count + 1, DAY_IN_SECONDS); |
| 222 |
} |
| 223 |
|
| 224 |
// Validate and sanitize the incoming message |
| 225 |
if (empty($_POST['message'])) { |
| 226 |
wp_send_json_error('No message received.'); |
| 227 |
wp_die(); |
| 228 |
} |
| 229 |
|
| 230 |
$message = wp_strip_all_tags($_POST['message'], false); |
| 231 |
$message = trim($message); |
| 232 |
$this->mxchat_save_chat_message($session_id, 'user', $message); |
| 233 |
|
| 234 |
// Initialize response variables |
| 235 |
$this->fallbackResponse = ['text' => '', 'html' => '', 'images' => []]; |
| 236 |
$this->productCardHtml = ''; |
| 237 |
$intent_info = ''; |
| 238 |
|
| 239 |
// Step 1: Check for new PDF URL in the message |
| 240 |
if (preg_match('/https?:\/\/[^\s"]+/i', $message, $matches)) { |
| 241 |
$new_pdf_url = $matches[0]; |
| 242 |
|
| 243 |
// Validate HTTPS |
| 244 |
if (wp_http_validate_url($new_pdf_url) && parse_url($new_pdf_url, PHP_URL_SCHEME) === 'https') { |
| 245 |
$existing_pdf_url = get_transient('mxchat_pdf_url_' . $session_id); |
| 246 |
|
| 247 |
// If a new URL is detected, reset all PDF-related transients |
| 248 |
if ($existing_pdf_url !== $new_pdf_url) { |
| 249 |
delete_transient('mxchat_pdf_url_' . $session_id); |
| 250 |
delete_transient('mxchat_pdf_embeddings_' . $session_id); |
| 251 |
delete_transient('mxchat_include_pdf_in_context_' . $session_id); |
| 252 |
|
| 253 |
// Store the new PDF URL |
| 254 |
set_transient('mxchat_pdf_url_' . $session_id, $new_pdf_url, HOUR_IN_SECONDS); |
| 255 |
|
| 256 |
// Get the maximum number of pages allowed from admin settings |
| 257 |
$max_pages = isset($this->options['pdf_max_pages']) ? intval($this->options['pdf_max_pages']) : 69; // Default to 69 |
| 258 |
|
| 259 |
|
| 260 |
// Fetch and process the new PDF |
| 261 |
$embeddings = $this->fetch_and_split_pdf_pages($new_pdf_url, $max_pages); // Pass both arguments |
| 262 |
|
| 263 |
if ($embeddings === 'too_many_pages') { |
| 264 |
// Handle PDF exceeding page limit |
| 265 |
$error_text = sprintf( |
| 266 |
$this->options['pdf_intent_error_text'] ?? "The provided PDF exceeds the maximum allowed limit of %d pages. Please provide a smaller document.", |
| 267 |
$max_pages |
| 268 |
); |
| 269 |
$this->fallbackResponse['text'] = $error_text; |
| 270 |
delete_transient('mxchat_pdf_url_' . $session_id); |
| 271 |
} elseif ($embeddings) { |
| 272 |
// Handle successful processing |
| 273 |
set_transient('mxchat_pdf_embeddings_' . $session_id, $embeddings, HOUR_IN_SECONDS); |
| 274 |
set_transient('mxchat_include_pdf_in_context_' . $session_id, true, HOUR_IN_SECONDS); |
| 275 |
|
| 276 |
$success_text = $this->options['pdf_intent_success_text'] ?? "I've processed the new PDF. What questions do you have about it?"; |
| 277 |
$this->fallbackResponse['text'] = $success_text; |
| 278 |
} else { |
| 279 |
// Handle general processing error |
| 280 |
$error_text = $this->options['pdf_intent_error_text'] ?? "Sorry, I couldn't process the new PDF. Please ensure it's a valid file."; |
| 281 |
$this->fallbackResponse['text'] = $error_text; |
| 282 |
delete_transient('mxchat_pdf_url_' . $session_id); |
| 283 |
} |
| 284 |
|
| 285 |
|
| 286 |
wp_send_json(['message' => $this->fallbackResponse['text']]); |
| 287 |
wp_die(); |
| 288 |
} |
| 289 |
} |
| 290 |
} |
| 291 |
|
| 292 |
|
| 293 |
|
| 294 |
// Step 2: Detect intent and handle intent-based responses |
| 295 |
$intent_matched = $this->mxchat_check_intent_and_invoke_callback($message, $user_id, $session_id); |
| 296 |
|
| 297 |
// Step 3: If intent is matched and handled, respond immediately |
| 298 |
if (!empty($this->fallbackResponse['text']) || !empty($this->fallbackResponse['html'])) { |
| 299 |
$response_data = [ |
| 300 |
'text' => $this->fallbackResponse['text'], |
| 301 |
'html' => $this->fallbackResponse['html'], |
| 302 |
'session_id' => $session_id |
| 303 |
]; |
| 304 |
$this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['text'] . $this->fallbackResponse['html']); |
| 305 |
wp_send_json($response_data); |
| 306 |
wp_die(); |
| 307 |
} |
| 308 |
|
| 309 |
// Step 4: Handle PDF-related content if applicable |
| 310 |
$include_pdf_in_context = get_transient('mxchat_include_pdf_in_context_' . $session_id); |
| 311 |
$pdf_vectors = get_transient('mxchat_pdf_embeddings_' . $session_id); |
| 312 |
|
| 313 |
// Generate embedding for the user's query |
| 314 |
$user_message_embedding = $this->mxchat_generate_embedding($message, $this->options['api_key']); |
| 315 |
if (!is_array($user_message_embedding)) { |
| 316 |
wp_send_json_error('Error processing your message.'); |
| 317 |
wp_die(); |
| 318 |
} |
| 319 |
|
| 320 |
// Prepare context for the response |
| 321 |
$context_content = "User asked: '{$message}'\n\n"; |
| 322 |
|
| 323 |
// Step 5: Fetch relevant content from the knowledge database |
| 324 |
$relevant_content = $this->mxchat_find_relevant_content($user_message_embedding); |
| 325 |
if (!empty($relevant_content)) { |
| 326 |
$context_content .= "Relevant content from knowledge database:\n" . $relevant_content . "\n\n"; |
| 327 |
} |
| 328 |
|
| 329 |
// Step 6: Check PDF content if available |
| 330 |
if ($include_pdf_in_context && is_array($pdf_vectors)) { |
| 331 |
//error_log("Searching relevant PDF pages for query embedding."); |
| 332 |
$relevant_pages = $this->find_relevant_pdf_pages($user_message_embedding, $pdf_vectors); |
| 333 |
|
| 334 |
if (!empty($relevant_pages)) { |
| 335 |
error_log("Relevant PDF pages found: " . implode(', ', array_map(function($page) { |
| 336 |
return $page['page_number']; |
| 337 |
}, $relevant_pages))); |
| 338 |
|
| 339 |
foreach ($relevant_pages as $page_data) { |
| 340 |
$context_content .= "Content from page {$page_data['page_number']}:\n" . $page_data['text'] . "\n\n"; |
| 341 |
} |
| 342 |
} else { |
| 343 |
//error_log("No relevant PDF pages found for query embedding."); |
| 344 |
} |
| 345 |
} |
| 346 |
|
| 347 |
// Step 7: Generate AI response based on context and conversation history |
| 348 |
$conversation_history = $this->mxchat_fetch_conversation_history_for_ai($session_id); |
| 349 |
$this->mxchat_increment_chat_count(); |
| 350 |
|
| 351 |
$response = $this->mxchat_generate_response( |
| 352 |
$context_content, |
| 353 |
$this->options['api_key'], |
| 354 |
$this->options['xai_api_key'], |
| 355 |
$this->options['claude_api_key'], |
| 356 |
$conversation_history |
| 357 |
); |
| 358 |
|
| 359 |
$this->mxchat_save_chat_message($session_id, 'bot', $response); |
| 360 |
|
| 361 |
// Step 8: Save and include additional content |
| 362 |
if (!empty($this->productCardHtml)) { |
| 363 |
$this->mxchat_save_chat_message($session_id, 'bot', $this->productCardHtml); |
| 364 |
} |
| 365 |
|
| 366 |
if (!empty($this->fallbackResponse['html'])) { |
| 367 |
$this->mxchat_save_chat_message($session_id, 'bot', $this->fallbackResponse['html']); |
| 368 |
} |
| 369 |
|
| 370 |
// Step 9: Return the response |
| 371 |
$response_data = [ |
| 372 |
'text' => $response, |
| 373 |
'html' => !empty($this->productCardHtml) ? $this->productCardHtml : ($this->fallbackResponse['html'] ?? ''), |
| 374 |
'session_id' => $session_id |
| 375 |
]; |
| 376 |
|
| 377 |
wp_send_json($response_data); |
| 378 |
wp_die(); |
| 379 |
} |
| 380 |
|
| 381 |
// New function to check intents and invoke the callback function |
| 382 |
private function mxchat_check_intent_and_invoke_callback( $message, $user_id, $session_id ) { |
| 383 |
global $wpdb; |
| 384 |
|
| 385 |
// Generate the user embedding |
| 386 |
$user_embedding = $this->mxchat_generate_embedding( $message, $this->options['api_key'] ); |
| 387 |
if ( ! is_array( $user_embedding ) ) { |
| 388 |
//error_log( 'mxchat: Error generating embedding for the message.' ); |
| 389 |
wp_send_json_error( 'Error generating embedding for the message.' ); |
| 390 |
return false; |
| 391 |
} |
| 392 |
|
| 393 |
// Fetch all intents from the database |
| 394 |
$table_name = $wpdb->prefix . 'mxchat_intents'; |
| 395 |
$intents = $wpdb->get_results( "SELECT * FROM $table_name" ); |
| 396 |
|
| 397 |
if ( empty( $intents ) ) { |
| 398 |
//error_log( 'mxchat: No intents found in the database.' ); |
| 399 |
return false; // No intents to process |
| 400 |
} |
| 401 |
|
| 402 |
$highest_similarity = -INF; |
| 403 |
$matched_intent = null; |
| 404 |
|
| 405 |
// Calculate similarity for each intent, using each intent's individual threshold if set |
| 406 |
foreach ( $intents as $intent ) { |
| 407 |
$intent_embedding_serialized = $intent->embedding_vector; |
| 408 |
|
| 409 |
// Securely unserialize the embedding vector |
| 410 |
$intent_embedding = $intent_embedding_serialized |
| 411 |
? unserialize( $intent_embedding_serialized, [ 'allowed_classes' => false ] ) |
| 412 |
: null; |
| 413 |
|
| 414 |
if ( ! is_array( $intent_embedding ) ) { |
| 415 |
//error_log( "mxchat: Invalid embedding for intent '{$intent->intent_label}'. Skipping." ); |
| 416 |
continue; // Skip if the embedding is invalid |
| 417 |
} |
| 418 |
|
| 419 |
// Calculate cosine similarity between user message embedding and intent embedding |
| 420 |
$similarity = $this->mxchat_calculate_cosine_similarity( $user_embedding, $intent_embedding ); |
| 421 |
//error_log( "mxchat: Similarity for intent '{$intent->intent_label}': {$similarity}" ); |
| 422 |
|
| 423 |
// Determine the similarity threshold for this intent |
| 424 |
$intent_threshold = isset( $intent->similarity_threshold ) ? $intent->similarity_threshold : 0.85; // Default to 0.85 if not set |
| 425 |
//error_log( "mxchat: Using threshold {$intent_threshold} for intent '{$intent->intent_label}'" ); |
| 426 |
|
| 427 |
// Only consider this intent as a potential match if it meets or exceeds the intent's threshold |
| 428 |
if ( $similarity >= $intent_threshold && $similarity > $highest_similarity ) { |
| 429 |
$highest_similarity = $similarity; |
| 430 |
$matched_intent = $intent; |
| 431 |
} |
| 432 |
} |
| 433 |
|
| 434 |
// Log the highest similarity and matched intent if found |
| 435 |
if ( $matched_intent ) { |
| 436 |
//error_log( "mxchat: Highest similarity is {$highest_similarity} for intent '{$matched_intent->intent_label}'" ); |
| 437 |
} else { |
| 438 |
//error_log( 'mxchat: No intent matched.' ); |
| 439 |
} |
| 440 |
|
| 441 |
// If a match is found above the threshold, call the associated callback |
| 442 |
if ( $matched_intent ) { |
| 443 |
//error_log( "mxchat: Intent '{$matched_intent->intent_label}' matches the threshold. Invoking callback '{$matched_intent->callback_function}'" ); |
| 444 |
|
| 445 |
// Ensure the callback function exists before calling it |
| 446 |
if ( method_exists( $this, $matched_intent->callback_function ) ) { |
| 447 |
// Call the intent handler function |
| 448 |
call_user_func( [ $this, $matched_intent->callback_function ], $message, $user_id, $session_id ); |
| 449 |
return true; // Indicate that an intent was matched and handled |
| 450 |
} else { |
| 451 |
//error_log( "mxchat: Callback function '{$matched_intent->callback_function}' not found." ); |
| 452 |
} |
| 453 |
} else { |
| 454 |
//error_log( 'mxchat: No intent matched above its respective threshold.' ); |
| 455 |
} |
| 456 |
|
| 457 |
return false; // No intent was matched above the threshold |
| 458 |
} |
| 459 |
|
| 460 |
//verified good |
| 461 |
public function mxchat_handle_order_history($message, $user_id, $session_id) { |
| 462 |
// Check if WooCommerce is active |
| 463 |
if (!class_exists('WooCommerce')) { |
| 464 |
$this->fallbackResponse['text'] = "Order functionality is currently unavailable."; |
| 465 |
return; // No need to proceed further |
| 466 |
} |
| 467 |
|
| 468 |
// Determine if the user is asking for the "last order" or "all orders" |
| 469 |
$queryType = (stripos($message, 'last order') !== false || stripos($message, 'recent order') !== false) ? 'last' : 'all'; |
| 470 |
|
| 471 |
// Fetch the relevant order details |
| 472 |
$orderDetails = MxChat_WooCommerce::mxchat_fetch_user_orders_details($queryType); |
| 473 |
|
| 474 |
// Set the fallback response to order details, which will be used if needed |
| 475 |
$this->fallbackResponse['text'] = $orderDetails ?: "No previous orders found."; |
| 476 |
} |
| 477 |
|
| 478 |
//verified good |
| 479 |
public function mxchat_handle_product_inquiry( $message, $user_id, $session_id ) { |
| 480 |
// Attempt to retrieve the product ID from the message |
| 481 |
$product_id = MxChat_WooCommerce::mxchat_extract_product_id_from_message( $message ); |
| 482 |
|
| 483 |
// Check if there's a previously discussed product for follow-up queries |
| 484 |
if ( ! $product_id ) { |
| 485 |
$product_id = get_transient( 'mxchat_last_discussed_product_' . $user_id ); |
| 486 |
} |
| 487 |
|
| 488 |
if ( $product_id && class_exists( 'WooCommerce' ) ) { |
| 489 |
$product = wc_get_product( $product_id ); |
| 490 |
if ( $product ) { |
| 491 |
// Escape and prepare product data |
| 492 |
$product_name = esc_html( $product->get_name() ); |
| 493 |
$product_price = $product->get_price_html(); // Assuming this is safe HTML |
| 494 |
$product_image_url = esc_url( wp_get_attachment_url( $product->get_image_id() ) ); |
| 495 |
$product_url = esc_url( get_permalink( $product_id ) ); |
| 496 |
$product_id_attr = esc_attr( $product_id ); |
| 497 |
|
| 498 |
// Generate the product card HTML using HEREDOC syntax |
| 499 |
$product_card_html = <<<HTML |
| 500 |
<div class="mxchat-product-card"> |
| 501 |
<a href="{$product_url}" target="_blank"> |
| 502 |
<img src="{$product_image_url}" alt="{$product_name}" class="mxchat-product-image" /> |
| 503 |
<h3 class="mxchat-product-name">{$product_name}</h3> |
| 504 |
</a> |
| 505 |
<div class="mxchat-product-price">{$product_price}</div> |
| 506 |
<button class="mxchat-add-to-cart-button" data-product-id="{$product_id_attr}">Add to Cart</button> |
| 507 |
</div> |
| 508 |
HTML; |
| 509 |
|
| 510 |
// Save the last discussed product |
| 511 |
set_transient( 'mxchat_last_discussed_product_' . $user_id, $product_id, HOUR_IN_SECONDS ); |
| 512 |
|
| 513 |
// Save the product card HTML to be appended later |
| 514 |
$this->productCardHtml = $product_card_html; |
| 515 |
|
| 516 |
// Do not send a response here; allow execution to continue |
| 517 |
return; |
| 518 |
} |
| 519 |
} |
| 520 |
|
| 521 |
// If no product found, set a fallback response |
| 522 |
$this->fallbackResponse = __( "I couldn't find details for that product. Could you specify the product name?", 'mxchat' ); |
| 523 |
return; |
| 524 |
} |
| 525 |
|
| 526 |
//verified good |
| 527 |
public function mxchat_handle_email_capture($message, $user_id, $session_id) { |
| 528 |
// Log the message safely |
| 529 |
//error_log("Triggered email capture intent for message: " . sanitize_text_field($message)); |
| 530 |
|
| 531 |
// Initiate email capture flow |
| 532 |
$response = esc_html($this->options['triggered_phrase_response'] ?? "Would you like to join our mailing list? Please provide your email below."); |
| 533 |
|
| 534 |
set_transient('mxchat_email_capture_' . $user_id, true, 5 * MINUTE_IN_SECONDS); |
| 535 |
$this->mxchat_save_chat_message($session_id, 'bot', $response); |
| 536 |
|
| 537 |
// Respond to the user |
| 538 |
wp_send_json(['message' => $response]); |
| 539 |
wp_die(); |
| 540 |
} |
| 541 |
|
| 542 |
//very good |
| 543 |
public function mxchat_generate_image($message, $user_id, $session_id) { |
| 544 |
// Prepare a prompt for DALL-E |
| 545 |
$prompt = "Create an image of " . sanitize_text_field($message); |
| 546 |
|
| 547 |
// Use the existing OpenAI API key |
| 548 |
$openai_api_key = sanitize_text_field($this->options['api_key']); |
| 549 |
|
| 550 |
// Call DALL-E to generate an image |
| 551 |
$image_response = $this->mxchat_generate_dalle_image($prompt, $openai_api_key); |
| 552 |
|
| 553 |
// Check if the response contains an image URL |
| 554 |
if (isset($image_response['imageUrl'])) { |
| 555 |
$image_url = esc_url_raw($image_response['imageUrl']); |
| 556 |
|
| 557 |
// Construct the HTML with a CSS class instead of inline styles |
| 558 |
$response_html = '<img src="' . esc_url($image_url) . '" alt="Generated Image" class="mxchat-generated-image" />'; |
| 559 |
|
| 560 |
$response_text = "Here is the image I generated:"; |
| 561 |
} else { |
| 562 |
$response_text = "I'm sorry, but I couldn't generate an image based on your request."; |
| 563 |
$response_html = ''; |
| 564 |
//error_log("DALL-E image generation error: " . esc_html($image_response['error'] ?? 'Unknown error.')); |
| 565 |
} |
| 566 |
|
| 567 |
// Save both text and HTML responses |
| 568 |
$this->mxchat_save_chat_message($session_id, 'bot', $response_text . "\n" . $response_html); |
| 569 |
|
| 570 |
// Prepare the response data |
| 571 |
$response_data = [ |
| 572 |
'message' => $response_text, |
| 573 |
'html' => $response_html, |
| 574 |
'image_url' => $image_url ?? '', |
| 575 |
]; |
| 576 |
|
| 577 |
// Send the JSON response |
| 578 |
header('Content-Type: application/json; charset=' . get_option('blog_charset')); |
| 579 |
echo json_encode($response_data, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES); |
| 580 |
wp_die(); |
| 581 |
} |
| 582 |
private function mxchat_generate_dalle_image($prompt, $api_key, $model = 'dall-e-3', $timeout = 60) { |
| 583 |
$api_url = 'https://api.openai.com/v1/images/generations'; |
| 584 |
$body = json_encode([ |
| 585 |
'prompt' => sanitize_text_field($prompt), |
| 586 |
'n' => 1, |
| 587 |
'size' => '1024x1024', |
| 588 |
'model' => sanitize_text_field($model), |
| 589 |
]); |
| 590 |
|
| 591 |
$args = [ |
| 592 |
'body' => $body, |
| 593 |
'headers' => [ |
| 594 |
'Content-Type' => 'application/json', |
| 595 |
'Authorization' => 'Bearer ' . sanitize_text_field($api_key), |
| 596 |
], |
| 597 |
'method' => 'POST', |
| 598 |
'timeout' => absint($timeout), |
| 599 |
]; |
| 600 |
|
| 601 |
$response = wp_remote_post($api_url, $args); |
| 602 |
|
| 603 |
if (is_wp_error($response)) { |
| 604 |
//error_log("DALL-E request failed: " . $response->get_error_message()); |
| 605 |
return ['error' => "Error generating image: " . $response->get_error_message()]; |
| 606 |
} |
| 607 |
|
| 608 |
$response_body = json_decode(wp_remote_retrieve_body($response), true); |
| 609 |
|
| 610 |
if (isset($response_body['data'][0]['url'])) { |
| 611 |
return ['imageUrl' => esc_url_raw($response_body['data'][0]['url'])]; |
| 612 |
} else { |
| 613 |
//error_log("DALL-E response error: " . wp_remote_retrieve_body($response)); |
| 614 |
return ['error' => "Failed to generate image."]; |
| 615 |
} |
| 616 |
} |
| 617 |
|
| 618 |
//very good |
| 619 |
public function mxchat_handle_search_request($message, $user_id, $session_id) { |
| 620 |
// Sanitize user input |
| 621 |
$search_query = preg_replace('/^search the web for\s+/i', '', $message); |
| 622 |
$search_query = preg_replace('/^show me the latest news about\s+/i', '', $message); |
| 623 |
$search_query = preg_replace('/^what\'?s the news in\s+/i', '', $message); |
| 624 |
$search_query = preg_replace('/^news about\s+/i', '', $message); |
| 625 |
$search_query = trim(sanitize_text_field($search_query)); |
| 626 |
|
| 627 |
if (empty($search_query)) { |
| 628 |
$this->fallbackResponse = [ |
| 629 |
'text' => __("Please provide a valid search query.", 'mxchat'), |
| 630 |
]; |
| 631 |
return; |
| 632 |
} |
| 633 |
|
| 634 |
// Check if the query is likely related to news |
| 635 |
$is_news_search = preg_match("/\bnews\b/i", $message); |
| 636 |
|
| 637 |
// Retrieve settings |
| 638 |
$options = get_option('mxchat_options'); |
| 639 |
|
| 640 |
$api_key = isset($options['brave_api_key']) ? sanitize_text_field($options['brave_api_key']) : ''; |
| 641 |
$news_count = isset($options['brave_news_count']) ? intval($options['brave_news_count']) : 3; |
| 642 |
$country = isset($options['brave_country']) ? sanitize_text_field($options['brave_country']) : 'us'; |
| 643 |
$language = isset($options['brave_language']) ? sanitize_text_field($options['brave_language']) : 'en'; |
| 644 |
|
| 645 |
if (empty($api_key)) { |
| 646 |
|
| 647 |
$this->fallbackResponse = [ |
| 648 |
'text' => __("API key is not configured. Please set it in the Brave Search Settings.", 'mxchat'), |
| 649 |
]; |
| 650 |
return; |
| 651 |
} |
| 652 |
|
| 653 |
// Set API endpoint and parameters based on search type |
| 654 |
$api_url = $is_news_search |
| 655 |
? 'https://api.search.brave.com/res/v1/news/search' |
| 656 |
: 'https://api.search.brave.com/res/v1/web/search'; |
| 657 |
|
| 658 |
$query_args = [ |
| 659 |
'q' => urlencode($search_query), |
| 660 |
]; |
| 661 |
|
| 662 |
if ($is_news_search) { |
| 663 |
$query_args['count'] = $news_count; |
| 664 |
$query_args['country'] = $country; |
| 665 |
$query_args['search_lang'] = $language; |
| 666 |
} |
| 667 |
|
| 668 |
$api_url = add_query_arg($query_args, $api_url); |
| 669 |
|
| 670 |
// Implement caching |
| 671 |
$transient_key = 'mxchat_search_' . md5($api_url); |
| 672 |
$body = get_transient($transient_key); |
| 673 |
|
| 674 |
if (false === $body) { |
| 675 |
$args = [ |
| 676 |
'headers' => [ |
| 677 |
'Accept' => 'application/json', |
| 678 |
'Accept-Encoding' => 'gzip', |
| 679 |
'Authorization' => 'Bearer ' . $api_key, |
| 680 |
'x-subscription-token' => $api_key, |
| 681 |
], |
| 682 |
'timeout' => 10, |
| 683 |
]; |
| 684 |
|
| 685 |
$response = wp_remote_get($api_url, $args); |
| 686 |
|
| 687 |
if (is_wp_error($response)) { |
| 688 |
|
| 689 |
$this->fallbackResponse = [ |
| 690 |
'text' => __("I'm sorry, I couldn't retrieve any information based on your request.", 'mxchat'), |
| 691 |
]; |
| 692 |
return; |
| 693 |
} |
| 694 |
|
| 695 |
$body = json_decode(wp_remote_retrieve_body($response), true); |
| 696 |
set_transient($transient_key, $body, HOUR_IN_SECONDS); |
| 697 |
} |
| 698 |
|
| 699 |
// Process the API response and build a more informative summary |
| 700 |
$text_summary = ""; |
| 701 |
|
| 702 |
if ($is_news_search && isset($body['results']) && is_array($body['results']) && count($body['results']) > 0) { |
| 703 |
$text_summary = "Here are some recent news articles:\n\n"; |
| 704 |
|
| 705 |
foreach ($body['results'] as $news) { |
| 706 |
$title = isset($news['title']) ? esc_html($news['title']) : __('No Title', 'mxchat'); |
| 707 |
$url = isset($news['url']) ? esc_url($news['url']) : '#'; |
| 708 |
$description = isset($news['description']) ? esc_html(strip_tags($news['description'])) : __('No description available.', 'mxchat'); |
| 709 |
$age = isset($news['age']) ? esc_html($news['age']) : ''; |
| 710 |
$hostname = isset($news['meta_url']['hostname']) ? esc_html($news['meta_url']['hostname']) : ''; |
| 711 |
$thumbnail = isset($news['thumbnail']['src']) ? esc_url($news['thumbnail']['src']) : ''; |
| 712 |
|
| 713 |
// Build text-only news item summary |
| 714 |
$text_summary .= "Title: {$title}\nURL: {$url}\nDescription: {$description}\nPublished: {$age}\n"; |
| 715 |
if (!empty($hostname)) { |
| 716 |
$text_summary .= "Source: {$hostname}\n"; |
| 717 |
} |
| 718 |
if (!empty($thumbnail)) { |
| 719 |
$text_summary .= "Thumbnail: \n"; |
| 720 |
} |
| 721 |
if (!empty($news['extra_snippets'])) { |
| 722 |
$extra_snippet_text = implode(" ", $news['extra_snippets']); |
| 723 |
$text_summary .= "Additional Info: {$extra_snippet_text}\n"; |
| 724 |
} |
| 725 |
$text_summary .= "\n"; // Separate entries |
| 726 |
} |
| 727 |
} elseif (!$is_news_search && isset($body['web']['results']) && is_array($body['web']['results']) && count($body['web']['results']) > 0) { |
| 728 |
$text_summary = "Here are some relevant articles based on your query:\n\n"; |
| 729 |
|
| 730 |
foreach ($body['web']['results'] as $result) { |
| 731 |
$title = isset($result['title']) ? esc_html($result['title']) : __('No Title', 'mxchat'); |
| 732 |
$url = isset($result['url']) ? esc_url($result['url']) : '#'; |
| 733 |
$description = isset($result['description']) ? esc_html(strip_tags($result['description'])) : __('No description available.', 'mxchat'); |
| 734 |
$hostname = isset($result['meta_url']['hostname']) ? esc_html($result['meta_url']['hostname']) : ''; |
| 735 |
$thumbnail = isset($result['thumbnail']['src']) ? esc_url($result['thumbnail']['src']) : ''; |
| 736 |
|
| 737 |
// Build text-only web item summary |
| 738 |
$text_summary .= "Title: {$title}\nURL: {$url}\nDescription: {$description}\n"; |
| 739 |
if (!empty($hostname)) { |
| 740 |
$text_summary .= "Source: {$hostname}\n"; |
| 741 |
} |
| 742 |
if (!empty($thumbnail)) { |
| 743 |
$text_summary .= "Thumbnail: \n"; |
| 744 |
} |
| 745 |
if (!empty($result['extra_snippets'])) { |
| 746 |
$extra_snippet_text = implode(" ", $result['extra_snippets']); |
| 747 |
$text_summary .= "Additional Info: {$extra_snippet_text}\n"; |
| 748 |
} |
| 749 |
$text_summary .= "\n"; // Separate entries |
| 750 |
} |
| 751 |
} else { |
| 752 |
|
| 753 |
$this->fallbackResponse = [ |
| 754 |
'text' => __("I'm sorry, I couldn't retrieve any information based on your request.", 'mxchat'), |
| 755 |
]; |
| 756 |
return; |
| 757 |
} |
| 758 |
|
| 759 |
$this->fallbackResponse = [ |
| 760 |
'text' => $text_summary, |
| 761 |
]; |
| 762 |
|
| 763 |
|
| 764 |
} |
| 765 |
|
| 766 |
//very good |
| 767 |
public function mxchat_handle_image_search_request($message, $user_id, $session_id) { |
| 768 |
|
| 769 |
// Step 1: Interpret the search query for better results |
| 770 |
$refined_search_query = $this->mxchat_interpret_search_query($message); |
| 771 |
|
| 772 |
|
| 773 |
// If no query was interpreted, return a fallback message |
| 774 |
if (empty($refined_search_query)) { |
| 775 |
$this->fallbackResponse = [ |
| 776 |
'text' => __("I'm sorry, I couldn't interpret your search query. Please specify what you'd like to see images of.", 'mxchat'), |
| 777 |
'html' => "", |
| 778 |
]; |
| 779 |
return; |
| 780 |
} |
| 781 |
|
| 782 |
// Brave API URL |
| 783 |
$api_url = 'https://api.search.brave.com/res/v1/images/search'; |
| 784 |
|
| 785 |
// Retrieve Brave API settings |
| 786 |
$options = get_option('mxchat_options'); |
| 787 |
$api_key = isset($options['brave_api_key']) ? sanitize_text_field($options['brave_api_key']) : ''; |
| 788 |
|
| 789 |
if (empty($api_key)) { |
| 790 |
/* |
| 791 |
if (defined('WP_DEBUG') && WP_DEBUG) { |
| 792 |
error_log("Brave API key is missing."); |
| 793 |
} |
| 794 |
*/ |
| 795 |
|
| 796 |
$this->fallbackResponse = [ |
| 797 |
'text' => __("API key is not configured. Please set it in the Brave Search Settings.", 'mxchat'), |
| 798 |
'html' => "", |
| 799 |
]; |
| 800 |
return; |
| 801 |
} |
| 802 |
|
| 803 |
$image_count = isset($options['brave_image_count']) ? intval($options['brave_image_count']) : 4; |
| 804 |
$safe_search = isset($options['brave_safe_search']) ? sanitize_text_field($options['brave_safe_search']) : 'strict'; |
| 805 |
|
| 806 |
// Append query parameters based on settings |
| 807 |
$api_url = add_query_arg([ |
| 808 |
'q' => rawurlencode($refined_search_query), |
| 809 |
'count' => $image_count, |
| 810 |
'safesearch' => $safe_search, |
| 811 |
], $api_url); |
| 812 |
|
| 813 |
/* |
| 814 |
// Log the final API URL for the search |
| 815 |
if (defined('WP_DEBUG') && WP_DEBUG) { |
| 816 |
error_log("Final API URL for Brave Image Search: " . esc_url_raw($api_url)); |
| 817 |
} |
| 818 |
*/ |
| 819 |
|
| 820 |
|
| 821 |
// Implement caching |
| 822 |
$transient_key = 'mxchat_image_search_' . md5($refined_search_query); |
| 823 |
$body = get_transient($transient_key); |
| 824 |
|
| 825 |
if (false === $body) { |
| 826 |
$args = [ |
| 827 |
'headers' => [ |
| 828 |
'Accept' => 'application/json', |
| 829 |
'Accept-Encoding' => 'gzip', |
| 830 |
'X-Subscription-Token' => $api_key, |
| 831 |
], |
| 832 |
'timeout' => 10, |
| 833 |
]; |
| 834 |
|
| 835 |
$response = wp_remote_get($api_url, $args); |
| 836 |
|
| 837 |
if (is_wp_error($response)) { |
| 838 |
/* |
| 839 |
if (defined('WP_DEBUG') && WP_DEBUG) { |
| 840 |
error_log("Brave Image API request failed: " . $response->get_error_message()); |
| 841 |
} |
| 842 |
*/ |
| 843 |
|
| 844 |
$this->fallbackResponse = [ |
| 845 |
'text' => __("I'm sorry, I couldn't retrieve any images based on your request.", 'mxchat'), |
| 846 |
'html' => "", |
| 847 |
]; |
| 848 |
return; |
| 849 |
} |
| 850 |
|
| 851 |
$body = json_decode(wp_remote_retrieve_body($response), true); |
| 852 |
set_transient($transient_key, $body, HOUR_IN_SECONDS); |
| 853 |
} |
| 854 |
|
| 855 |
// Process the API response |
| 856 |
if (isset($body['results']) && is_array($body['results']) && count($body['results']) > 0) { |
| 857 |
$html_output = '<div class="mxchat-image-gallery">'; |
| 858 |
|
| 859 |
foreach ($body['results'] as $image) { |
| 860 |
$image_url = isset($image['url']) ? esc_url($image['url']) : ''; |
| 861 |
$thumbnail_url = isset($image['thumbnail']['src']) ? esc_url($image['thumbnail']['src']) : ''; |
| 862 |
$title = isset($image['title']) ? esc_html($image['title']) : __('Image', 'mxchat'); |
| 863 |
|
| 864 |
if ($image_url && $thumbnail_url) { |
| 865 |
$html_output .= '<div class="mxchat-image-item">'; |
| 866 |
$html_output .= '<strong class="mxchat-image-title">' . $title . '</strong>'; |
| 867 |
$html_output .= '<a href="' . $image_url . '" target="_blank" rel="noopener noreferrer" class="mxchat-image-link">'; |
| 868 |
$html_output .= '<img src="' . $thumbnail_url . '" alt="' . $title . '" class="mxchat-image-thumbnail">'; |
| 869 |
$html_output .= '</a></div>'; |
| 870 |
} |
| 871 |
} |
| 872 |
|
| 873 |
$html_output .= '</div>'; |
| 874 |
|
| 875 |
$this->fallbackResponse = [ |
| 876 |
'text' => "", |
| 877 |
'html' => $html_output, |
| 878 |
]; |
| 879 |
|
| 880 |
// Save response in chat history |
| 881 |
$this->mxchat_save_chat_message($session_id, 'bot', $html_output); |
| 882 |
|
| 883 |
} else { |
| 884 |
/* |
| 885 |
if (defined('WP_DEBUG') && WP_DEBUG) { |
| 886 |
error_log("Brave Image API response did not contain expected data structure or was empty: " . print_r($body, true)); |
| 887 |
} |
| 888 |
*/ |
| 889 |
|
| 890 |
$this->fallbackResponse = [ |
| 891 |
'text' => __("I'm sorry, I couldn't retrieve any images based on your request.", 'mxchat'), |
| 892 |
'html' => "", |
| 893 |
]; |
| 894 |
} |
| 895 |
} |
| 896 |
public function mxchat_interpret_search_query($user_query) { |
| 897 |
$system_prompt = "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."; |
| 898 |
|
| 899 |
// Retrieve OpenAI API key using 'api_key' as the option key |
| 900 |
$api_key = isset($this->options['api_key']) ? sanitize_text_field($this->options['api_key']) : sanitize_text_field(get_option('mxchat_options')['api_key']); |
| 901 |
|
| 902 |
/* |
| 903 |
// Log the API key check, without exposing the key |
| 904 |
if (defined('WP_DEBUG') && WP_DEBUG) { |
| 905 |
error_log("Retrieved OpenAI API Key: " . ($api_key ? "Present" : "Missing")); |
| 906 |
} |
| 907 |
*/ |
| 908 |
|
| 909 |
|
| 910 |
if (empty($api_key)) { |
| 911 |
//error_log("OpenAI API key is missing."); |
| 912 |
return sanitize_text_field($user_query); // Default to the original query if API key is missing |
| 913 |
} |
| 914 |
|
| 915 |
$url = 'https://api.openai.com/v1/chat/completions'; |
| 916 |
$args = [ |
| 917 |
'headers' => [ |
| 918 |
'Authorization' => 'Bearer ' . $api_key, |
| 919 |
'Content-Type' => 'application/json', |
| 920 |
], |
| 921 |
'body' => wp_json_encode([ |
| 922 |
'model' => 'gpt-3.5-turbo', |
| 923 |
'messages' => [ |
| 924 |
['role' => 'system', 'content' => $system_prompt], |
| 925 |
['role' => 'user', 'content' => sanitize_text_field($user_query)], |
| 926 |
], |
| 927 |
'temperature' => 0.2, |
| 928 |
'max_tokens' => 20, |
| 929 |
]), |
| 930 |
'method' => 'POST', |
| 931 |
]; |
| 932 |
|
| 933 |
$response = wp_remote_post($url, $args); |
| 934 |
|
| 935 |
if (is_wp_error($response)) { |
| 936 |
//error_log("OpenAI request failed: " . $response->get_error_message()); |
| 937 |
return sanitize_text_field($user_query); // Fallback to the original query if there's an error |
| 938 |
} |
| 939 |
|
| 940 |
$body = json_decode(wp_remote_retrieve_body($response), true); |
| 941 |
|
| 942 |
// Check for a valid response and sanitize output |
| 943 |
if (isset($body['choices'][0]['message']['content'])) { |
| 944 |
$interpreted_query = sanitize_text_field(trim($body['choices'][0]['message']['content'])); |
| 945 |
|
| 946 |
/* |
| 947 |
// Log the interpreted query for debugging |
| 948 |
if (defined('WP_DEBUG') && WP_DEBUG) { |
| 949 |
error_log("Interpreted search query: " . $interpreted_query); |
| 950 |
} |
| 951 |
*/ |
| 952 |
|
| 953 |
return $interpreted_query; |
| 954 |
} else { |
| 955 |
//error_log("Unexpected API response format: " . print_r($body, true)); |
| 956 |
return sanitize_text_field($user_query); |
| 957 |
} |
| 958 |
} |
| 959 |
|
| 960 |
//very good |
| 961 |
public function mxchat_handle_add_to_cart_intent($message, $user_id, $session_id) { |
| 962 |
// Check if WooCommerce is active before proceeding |
| 963 |
if (!class_exists('WooCommerce')) { |
| 964 |
// error_log("WooCommerce is not active. Add-to-cart intent cannot be processed."); |
| 965 |
return false; |
| 966 |
} |
| 967 |
|
| 968 |
// Sanitize user ID for transient key |
| 969 |
$sanitized_user_id = sanitize_key($user_id); |
| 970 |
|
| 971 |
// Retrieve the last discussed product ID from the transient |
| 972 |
$last_product_id = get_transient('mxchat_last_discussed_product_' . $sanitized_user_id); |
| 973 |
if ($last_product_id) { |
| 974 |
// Attempt to add the product to the WooCommerce cart |
| 975 |
$added = WC()->cart->add_to_cart($last_product_id); |
| 976 |
$product = wc_get_product($last_product_id); |
| 977 |
|
| 978 |
if ($added && $product) { |
| 979 |
// Escape product name for safety |
| 980 |
$product_name = esc_html($product->get_name()); |
| 981 |
|
| 982 |
// Success response if the product is added to the cart |
| 983 |
$response = "The product '{$product_name}' has been added to your cart. To proceed to checkout, please type 'checkout'."; |
| 984 |
set_transient('mxchat_checkout_prompt_' . $sanitized_user_id, true, 5 * MINUTE_IN_SECONDS); |
| 985 |
|
| 986 |
// Save the response in chat history and send a JSON response |
| 987 |
$this->mxchat_save_chat_message($session_id, 'bot', $response); |
| 988 |
wp_send_json(['message' => $response]); |
| 989 |
wp_die(); |
| 990 |
} else { |
| 991 |
// Failure response if the product could not be added |
| 992 |
$response = "Sorry, I couldn't add the product to your cart. Please try again."; |
| 993 |
$this->mxchat_save_chat_message($session_id, 'bot', $response); |
| 994 |
wp_send_json(['message' => $response]); |
| 995 |
wp_die(); |
| 996 |
} |
| 997 |
} else { |
| 998 |
// Prompt the user to specify the product name if no product was found |
| 999 |
$response = "I couldn't find the product to add. Please mention the product name again."; |
| 1000 |
$this->mxchat_save_chat_message($session_id, 'bot', $response); |
| 1001 |
wp_send_json(['message' => $response]); |
| 1002 |
wp_die(); |
| 1003 |
} |
| 1004 |
} |
| 1005 |
public function mxchat_handle_checkout_intent($message, $user_id, $session_id) { |
| 1006 |
// Ensure WooCommerce is available and perform checkout actions |
| 1007 |
if (class_exists('WooCommerce')) { |
| 1008 |
// Sanitize user ID for transient key |
| 1009 |
$sanitized_user_id = sanitize_key($user_id); |
| 1010 |
|
| 1011 |
$checkout_prompt = get_transient('mxchat_checkout_prompt_' . $sanitized_user_id); |
| 1012 |
|
| 1013 |
// Check if there is an active checkout prompt and if the cart has items |
| 1014 |
if ($checkout_prompt && WC()->cart->get_cart_contents_count() > 0) { |
| 1015 |
// Get and escape the checkout URL |
| 1016 |
$checkout_url = wc_get_checkout_url(); |
| 1017 |
$checkout_url = esc_url_raw($checkout_url); |
| 1018 |
|
| 1019 |
$response = "Great! Redirecting you to the checkout page..."; |
| 1020 |
|
| 1021 |
// Clear the checkout prompt transient to avoid duplicate responses |
| 1022 |
delete_transient('mxchat_checkout_prompt_' . $sanitized_user_id); |
| 1023 |
|
| 1024 |
// Save and send the response with the checkout URL for redirection |
| 1025 |
$this->mxchat_save_chat_message($session_id, 'bot', $response); |
| 1026 |
wp_send_json(['message' => $response, 'redirect_url' => $checkout_url]); |
| 1027 |
wp_die(); |
| 1028 |
} else { |
| 1029 |
// If no active checkout prompt or empty cart, prompt user to add items first |
| 1030 |
$response = "It seems like there is no active checkout prompt or no items in your cart. Please add a product to the cart first."; |
| 1031 |
$this->mxchat_save_chat_message($session_id, 'bot', $response); |
| 1032 |
wp_send_json(['message' => $response]); |
| 1033 |
wp_die(); |
| 1034 |
} |
| 1035 |
} else { |
| 1036 |
// WooCommerce is not available, send an error message |
| 1037 |
$response = "WooCommerce is not active on this site, so checkout is not possible."; |
| 1038 |
$this->mxchat_save_chat_message($session_id, 'bot', $response); |
| 1039 |
wp_send_json(['message' => $response]); |
| 1040 |
wp_die(); |
| 1041 |
} |
| 1042 |
} |
| 1043 |
|
| 1044 |
//very good |
| 1045 |
public static function mxchat_extract_product_id_from_message($message) { |
| 1046 |
// Sanitize the message input |
| 1047 |
$message = sanitize_text_field($message); |
| 1048 |
|
| 1049 |
// Convert Markdown links to plain URLs |
| 1050 |
$message = preg_replace('/\[(.*?)\]\((.*?)\)/', '$2', $message); |
| 1051 |
|
| 1052 |
// Match all URLs in the message |
| 1053 |
preg_match_all('/https?:\/\/[^\s]+/', $message, $matches); |
| 1054 |
|
| 1055 |
if (!empty($matches[0])) { |
| 1056 |
foreach ($matches[0] as $url) { |
| 1057 |
// Sanitize the URL |
| 1058 |
$url = esc_url_raw($url); |
| 1059 |
|
| 1060 |
// Try to get the post ID from the URL |
| 1061 |
$post_id = url_to_postid($url); |
| 1062 |
|
| 1063 |
if ($post_id) { |
| 1064 |
// Check if the post type is 'product' |
| 1065 |
if (get_post_type($post_id) === 'product') { |
| 1066 |
return $post_id; |
| 1067 |
} |
| 1068 |
} |
| 1069 |
} |
| 1070 |
} |
| 1071 |
return false; |
| 1072 |
} |
| 1073 |
|
| 1074 |
//very good |
| 1075 |
private function add_email_to_loops($email) { |
| 1076 |
// Sanitize the email |
| 1077 |
$email = sanitize_email($email); |
| 1078 |
|
| 1079 |
// Retrieve and sanitize options |
| 1080 |
$api_key = isset($this->options['loops_api_key']) ? sanitize_text_field($this->options['loops_api_key']) : ''; |
| 1081 |
$mailing_list_id = isset($this->options['loops_mailing_list']) ? sanitize_text_field($this->options['loops_mailing_list']) : ''; |
| 1082 |
|
| 1083 |
// Check for missing API key or mailing list ID |
| 1084 |
if (empty($api_key) || empty($mailing_list_id)) { |
| 1085 |
//error_log('Loops API key or mailing list ID is missing.'); |
| 1086 |
return; |
| 1087 |
} |
| 1088 |
|
| 1089 |
$data = array( |
| 1090 |
'email' => $email, |
| 1091 |
'subscribed' => true, |
| 1092 |
'source' => 'MxChat AI Chatbot', |
| 1093 |
'mailingLists' => array($mailing_list_id => true), |
| 1094 |
); |
| 1095 |
|
| 1096 |
$url = 'https://app.loops.so/api/v1/contacts/create'; |
| 1097 |
$args = array( |
| 1098 |
'body' => wp_json_encode($data), |
| 1099 |
'headers' => array( |
| 1100 |
'Authorization' => 'Bearer ' . $api_key, |
| 1101 |
'Content-Type' => 'application/json', |
| 1102 |
), |
| 1103 |
'method' => 'POST', |
| 1104 |
'timeout' => 45, |
| 1105 |
); |
| 1106 |
|
| 1107 |
$response = wp_remote_post($url, $args); |
| 1108 |
|
| 1109 |
// Handle errors in the API request |
| 1110 |
if (is_wp_error($response)) { |
| 1111 |
//error_log('Error adding email to Loops: ' . $response->get_error_message()); |
| 1112 |
return; |
| 1113 |
} |
| 1114 |
|
| 1115 |
// Check for non-200 HTTP responses |
| 1116 |
$response_code = wp_remote_retrieve_response_code($response); |
| 1117 |
if ($response_code != 200) { |
| 1118 |
$response_body = wp_remote_retrieve_body($response); |
| 1119 |
//error_log('Loops API responded with code ' . $response_code . ': ' . $response_body); |
| 1120 |
} |
| 1121 |
} |
| 1122 |
|
| 1123 |
|
| 1124 |
|
| 1125 |
public function mxchat_handle_pdf_discussion($message, $user_id, $session_id) { |
| 1126 |
// Get the maximum number of pages allowed from admin settings |
| 1127 |
$max_pages = isset($this->options['pdf_max_pages']) ? intval($this->options['pdf_max_pages']) : 69; // Default to 69 |
| 1128 |
|
| 1129 |
|
| 1130 |
// Retrieve options for dynamic texts |
| 1131 |
$trigger_text = $this->options['pdf_intent_trigger_text'] ?? "Please provide the URL to the PDF you'd like to discuss."; |
| 1132 |
$success_text = $this->options['pdf_intent_success_text'] ?? "I've processed the PDF. What questions do you have about it?"; |
| 1133 |
$error_text = $this->options['pdf_intent_error_text'] ?? "Sorry, I couldn't process the PDF. Please ensure it's a valid file."; |
| 1134 |
|
| 1135 |
// Check if we're waiting for a URL |
| 1136 |
$waiting_for_url = get_transient('mxchat_waiting_for_pdf_url_' . $session_id); |
| 1137 |
|
| 1138 |
// Check if we already have a PDF URL stored for this session |
| 1139 |
$pdf_url = get_transient('mxchat_pdf_url_' . $session_id); |
| 1140 |
|
| 1141 |
// Always process a new URL if detected in the current message |
| 1142 |
if (preg_match('/https?:\/\/[^\s"]+/i', $message, $matches)) { |
| 1143 |
$new_pdf_url = $matches[0]; |
| 1144 |
|
| 1145 |
// Validate HTTPS |
| 1146 |
if (!wp_http_validate_url($new_pdf_url) || parse_url($new_pdf_url, PHP_URL_SCHEME) !== 'https') { |
| 1147 |
//error_log("Invalid PDF URL: $new_pdf_url"); |
| 1148 |
$this->fallbackResponse['text'] = $trigger_text; |
| 1149 |
return; |
| 1150 |
} |
| 1151 |
|
| 1152 |
// Reset previous transients if a new URL is provided |
| 1153 |
if ($pdf_url !== $new_pdf_url) { |
| 1154 |
//error_log("New PDF URL detected. Resetting previous transients for session $session_id."); |
| 1155 |
delete_transient('mxchat_pdf_url_' . $session_id); |
| 1156 |
delete_transient('mxchat_pdf_embeddings_' . $session_id); |
| 1157 |
delete_transient('mxchat_include_pdf_in_context_' . $session_id); |
| 1158 |
|
| 1159 |
// Store the new PDF URL |
| 1160 |
set_transient('mxchat_pdf_url_' . $session_id, $new_pdf_url, HOUR_IN_SECONDS); |
| 1161 |
|
| 1162 |
// Fetch and process the new PDF |
| 1163 |
$embeddings = $this->fetch_and_split_pdf_pages($new_pdf_url, $max_pages); // Ensure both arguments are passed |
| 1164 |
|
| 1165 |
if ($embeddings === 'too_many_pages') { |
| 1166 |
//error_log("PDF exceeds maximum allowed pages ($max_pages) for URL: $new_pdf_url"); |
| 1167 |
$error_text = sprintf( |
| 1168 |
$this->options['pdf_intent_error_text'] ?? "The provided PDF exceeds the maximum allowed limit of %d pages. Please provide a smaller document.", |
| 1169 |
$max_pages |
| 1170 |
); |
| 1171 |
$this->fallbackResponse['text'] = $error_text; |
| 1172 |
delete_transient('mxchat_pdf_url_' . $session_id); |
| 1173 |
} elseif ($embeddings) { |
| 1174 |
//error_log("PDF processed successfully for URL: $new_pdf_url"); |
| 1175 |
set_transient('mxchat_pdf_embeddings_' . $session_id, $embeddings, HOUR_IN_SECONDS); |
| 1176 |
set_transient('mxchat_include_pdf_in_context_' . $session_id, true, HOUR_IN_SECONDS); |
| 1177 |
|
| 1178 |
$this->fallbackResponse['text'] = $success_text; |
| 1179 |
} else { |
| 1180 |
//error_log("Failed to process PDF for URL: $new_pdf_url"); |
| 1181 |
$this->fallbackResponse['text'] = $error_text; |
| 1182 |
delete_transient('mxchat_pdf_url_' . $session_id); |
| 1183 |
} |
| 1184 |
|
| 1185 |
return; |
| 1186 |
} |
| 1187 |
} |
| 1188 |
|
| 1189 |
if (!$pdf_url) { |
| 1190 |
//error_log("No PDF URL provided or stored for session $session_id."); |
| 1191 |
set_transient('mxchat_waiting_for_pdf_url_' . $session_id, true, HOUR_IN_SECONDS); |
| 1192 |
$this->fallbackResponse['text'] = $trigger_text; |
| 1193 |
return; |
| 1194 |
} |
| 1195 |
|
| 1196 |
// Retrieve stored embeddings or fetch if missing |
| 1197 |
$embeddings = get_transient('mxchat_pdf_embeddings_' . $session_id); |
| 1198 |
|
| 1199 |
if (!$embeddings) { |
| 1200 |
//error_log("No embeddings found for PDF URL: $pdf_url. Attempting to process again."); |
| 1201 |
$embeddings = $this->fetch_and_split_pdf_pages($pdf_url, $max_pages); // Ensure both arguments are passed |
| 1202 |
|
| 1203 |
if ($embeddings === 'too_many_pages') { |
| 1204 |
//error_log("PDF exceeds maximum allowed pages ($max_pages) for URL: $pdf_url"); |
| 1205 |
$this->fallbackResponse['text'] = "The provided PDF exceeds the maximum allowed limit of {$max_pages} pages. Please provide a smaller document."; |
| 1206 |
delete_transient('mxchat_pdf_url_' . $session_id); |
| 1207 |
} elseif ($embeddings) { |
| 1208 |
//error_log("PDF processed successfully for URL: $pdf_url"); |
| 1209 |
set_transient('mxchat_pdf_embeddings_' . $session_id, $embeddings, HOUR_IN_SECONDS); |
| 1210 |
set_transient('mxchat_include_pdf_in_context_' . $session_id, true, HOUR_IN_SECONDS); |
| 1211 |
|
| 1212 |
$this->fallbackResponse['text'] = $success_text; |
| 1213 |
} else { |
| 1214 |
//error_log("Failed to process PDF for URL: $pdf_url"); |
| 1215 |
$this->fallbackResponse['text'] = $error_text; |
| 1216 |
delete_transient('mxchat_pdf_url_' . $session_id); |
| 1217 |
} |
| 1218 |
} else { |
| 1219 |
//error_log("Using stored embeddings for session $session_id."); |
| 1220 |
set_transient('mxchat_include_pdf_in_context_' . $session_id, true, HOUR_IN_SECONDS); |
| 1221 |
$this->fallbackResponse['text'] = ''; // Proceed without additional message |
| 1222 |
} |
| 1223 |
} |
| 1224 |
private function fetch_and_split_pdf_pages($pdf_url, $max_pages) { |
| 1225 |
$upload_dir = wp_upload_dir(); |
| 1226 |
$local_pdf_path = $upload_dir['path'] . '/' . basename(parse_url($pdf_url, PHP_URL_PATH)); |
| 1227 |
|
| 1228 |
$response = wp_remote_get($pdf_url, ['timeout' => 60]); |
| 1229 |
if (is_wp_error($response) || wp_remote_retrieve_response_code($response) !== 200) { |
| 1230 |
//error_log("Failed to download PDF. Error: " . print_r($response, true)); |
| 1231 |
return false; |
| 1232 |
} |
| 1233 |
|
| 1234 |
file_put_contents($local_pdf_path, wp_remote_retrieve_body($response)); |
| 1235 |
|
| 1236 |
try { |
| 1237 |
$parser = new \Smalot\PdfParser\Parser(); |
| 1238 |
$pdf = $parser->parseFile($local_pdf_path); |
| 1239 |
$pages = $pdf->getPages(); |
| 1240 |
|
| 1241 |
if (count($pages) > $max_pages) { |
| 1242 |
unlink($local_pdf_path); |
| 1243 |
return 'too_many_pages'; |
| 1244 |
} |
| 1245 |
|
| 1246 |
$embeddings = []; |
| 1247 |
foreach ($pages as $page_number => $page) { |
| 1248 |
$text = $page->getText(); |
| 1249 |
$embedding = $this->mxchat_generate_embedding("Page " . ($page_number + 1) . ": " . $text, $this->options['api_key']); |
| 1250 |
if ($embedding) { |
| 1251 |
$embeddings[] = [ |
| 1252 |
'page_number' => $page_number + 1, |
| 1253 |
'embedding' => $embedding, |
| 1254 |
'text' => $text, |
| 1255 |
]; |
| 1256 |
} else { |
| 1257 |
//error_log("Failed to generate embedding for page " . ($page_number + 1)); |
| 1258 |
} |
| 1259 |
} |
| 1260 |
|
| 1261 |
unlink($local_pdf_path); |
| 1262 |
return $embeddings; |
| 1263 |
} catch (\Exception $e) { |
| 1264 |
unlink($local_pdf_path); |
| 1265 |
//error_log("Error parsing or processing PDF: " . $e->getMessage()); |
| 1266 |
return false; |
| 1267 |
} |
| 1268 |
} |
| 1269 |
private function find_relevant_pdf_pages($query_embedding, $embeddings) { |
| 1270 |
//error_log("find_relevant_pdf_pages called."); |
| 1271 |
|
| 1272 |
$most_relevant = null; |
| 1273 |
$highest_similarity = -INF; |
| 1274 |
|
| 1275 |
foreach ($embeddings as $page_data) { |
| 1276 |
$similarity = $this->mxchat_calculate_cosine_similarity($query_embedding, $page_data['embedding']); |
| 1277 |
|
| 1278 |
if ($similarity > $highest_similarity) { |
| 1279 |
$highest_similarity = $similarity; |
| 1280 |
$most_relevant = $page_data['page_number']; |
| 1281 |
} |
| 1282 |
} |
| 1283 |
|
| 1284 |
if (!is_null($most_relevant)) { |
| 1285 |
$page_numbers = range(max(1, $most_relevant - 1), min(count($embeddings), $most_relevant + 1)); |
| 1286 |
return array_filter($embeddings, function ($page) use ($page_numbers) { |
| 1287 |
return in_array($page['page_number'], $page_numbers); |
| 1288 |
}); |
| 1289 |
} |
| 1290 |
|
| 1291 |
return []; |
| 1292 |
} |
| 1293 |
|
| 1294 |
|
| 1295 |
|
| 1296 |
|
| 1297 |
private function mxchat_get_user_identifier() { |
| 1298 |
return MxChat_User::mxchat_get_user_identifier(); |
| 1299 |
} |
| 1300 |
|
| 1301 |
private function mxchat_generate_embedding($text, $api_key) { |
| 1302 |
$endpoint = 'https://api.openai.com/v1/embeddings'; |
| 1303 |
|
| 1304 |
$body = wp_json_encode([ |
| 1305 |
'input' => $text, |
| 1306 |
'model' => 'text-embedding-ada-002' |
| 1307 |
]); |
| 1308 |
|
| 1309 |
$args = [ |
| 1310 |
'body' => $body, |
| 1311 |
'headers' => [ |
| 1312 |
'Content-Type' => 'application/json', |
| 1313 |
'Authorization' => 'Bearer ' . $api_key, |
| 1314 |
], |
| 1315 |
'timeout' => 60, |
| 1316 |
'redirection' => 5, |
| 1317 |
'blocking' => true, |
| 1318 |
'httpversion' => '1.0', |
| 1319 |
'sslverify' => true, |
| 1320 |
]; |
| 1321 |
|
| 1322 |
$response = wp_remote_post($endpoint, $args); |
| 1323 |
|
| 1324 |
if (is_wp_error($response)) { |
| 1325 |
return null; |
| 1326 |
} |
| 1327 |
|
| 1328 |
$response_body = json_decode(wp_remote_retrieve_body($response), true); |
| 1329 |
|
| 1330 |
if (isset($response_body['data'][0]['embedding']) && is_array($response_body['data'][0]['embedding'])) { |
| 1331 |
return $response_body['data'][0]['embedding']; |
| 1332 |
} else { |
| 1333 |
return null; |
| 1334 |
} |
| 1335 |
} |
| 1336 |
|
| 1337 |
private function mxchat_find_relevant_content($user_embedding) { |
| 1338 |
global $wpdb; |
| 1339 |
$system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content'; |
| 1340 |
|
| 1341 |
// Define a cache key for embeddings |
| 1342 |
$cache_key = 'mxchat_system_prompt_embeddings'; |
| 1343 |
|
| 1344 |
// Attempt to get the embeddings from the cache |
| 1345 |
$embeddings = wp_cache_get($cache_key, 'mxchat_system_prompts'); |
| 1346 |
|
| 1347 |
if ($embeddings === false) { |
| 1348 |
// Cache miss, query the database and cache the results |
| 1349 |
$query = "SELECT id, embedding_vector FROM {$system_prompt_table}"; |
| 1350 |
$embeddings = $wpdb->get_results($query); |
| 1351 |
|
| 1352 |
if ($embeddings === null || empty($embeddings)) { |
| 1353 |
return null; // Return null to handle no embeddings gracefully |
| 1354 |
} |
| 1355 |
|
| 1356 |
// Cache the results if successful |
| 1357 |
wp_cache_set($cache_key, $embeddings, 'mxchat_system_prompts', 3600); // Cache for 1 hour |
| 1358 |
} |
| 1359 |
|
| 1360 |
$most_relevant_id = null; |
| 1361 |
$highest_similarity = -INF; |
| 1362 |
|
| 1363 |
foreach ($embeddings as $embedding) { |
| 1364 |
$database_embedding = $embedding->embedding_vector |
| 1365 |
? unserialize($embedding->embedding_vector, ['allowed_classes' => false]) |
| 1366 |
: null; |
| 1367 |
|
| 1368 |
if (is_array($database_embedding) && is_array($user_embedding)) { |
| 1369 |
$similarity = $this->mxchat_calculate_cosine_similarity($user_embedding, $database_embedding); |
| 1370 |
|
| 1371 |
if ($similarity > $highest_similarity) { |
| 1372 |
$highest_similarity = $similarity; |
| 1373 |
$most_relevant_id = $embedding->id; |
| 1374 |
} |
| 1375 |
} |
| 1376 |
} |
| 1377 |
|
| 1378 |
if ($most_relevant_id !== null) { |
| 1379 |
// Fetch content with product links |
| 1380 |
return $this->fetch_content_with_product_links($most_relevant_id); |
| 1381 |
} |
| 1382 |
|
| 1383 |
return null; // Return null if no relevant content is found |
| 1384 |
} |
| 1385 |
|
| 1386 |
private function fetch_content_with_product_links($most_relevant_id) { |
| 1387 |
global $wpdb; |
| 1388 |
$system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content'; |
| 1389 |
|
| 1390 |
// Fetch the article content and associated product URL |
| 1391 |
$query = $wpdb->prepare("SELECT article_content, source_url FROM {$system_prompt_table} WHERE id = %d", $most_relevant_id); |
| 1392 |
$result = $wpdb->get_row($query); |
| 1393 |
|
| 1394 |
if ($result) { |
| 1395 |
// Append the product link to the content if available |
| 1396 |
$content = $result->article_content; |
| 1397 |
if (!empty($result->source_url)) { |
| 1398 |
$content .= "\n\nFor more details, check out this product: " . esc_url($result->source_url); |
| 1399 |
} |
| 1400 |
return $content; |
| 1401 |
} |
| 1402 |
|
| 1403 |
return null; |
| 1404 |
} |
| 1405 |
|
| 1406 |
private function mxchat_generate_response($relevant_content, $api_key, $xai_api_key, $claude_api_key, $conversation_history) { |
| 1407 |
if (!$relevant_content) { |
| 1408 |
return "I'm sorry, I couldn't find relevant information on that topic."; |
| 1409 |
} |
| 1410 |
|
| 1411 |
// Check the selected model |
| 1412 |
$selected_model = isset($this->options['model']) ? $this->options['model'] : 'gpt-3.5-turbo'; |
| 1413 |
|
| 1414 |
// Call the appropriate function based on the selected model |
| 1415 |
if (strpos($selected_model, 'claude') !== false) { |
| 1416 |
return $this->mxchat_generate_response_claude($selected_model, $claude_api_key, $conversation_history, $relevant_content); |
| 1417 |
} elseif ($selected_model === 'grok-beta') { |
| 1418 |
return $this->mxchat_generate_response_xai($selected_model, $xai_api_key, $conversation_history, $relevant_content); |
| 1419 |
} else { |
| 1420 |
return $this->mxchat_generate_response_openai($selected_model, $api_key, $conversation_history, $relevant_content); |
| 1421 |
} |
| 1422 |
} |
| 1423 |
|
| 1424 |
private function mxchat_generate_response_openai($selected_model, $api_key, $conversation_history, $relevant_content) { |
| 1425 |
// Get system prompt instructions from options |
| 1426 |
$system_prompt_instructions = isset($this->options['system_prompt_instructions']) ? $this->options['system_prompt_instructions'] : ''; |
| 1427 |
|
| 1428 |
// Add system prompt to relevant content |
| 1429 |
$content_with_instructions = $system_prompt_instructions . " " . $relevant_content; |
| 1430 |
|
| 1431 |
// Prepend system instructions to the conversation history |
| 1432 |
array_unshift($conversation_history, [ |
| 1433 |
'role' => 'system', |
| 1434 |
'content' => "Here are your instructions: " . $content_with_instructions |
| 1435 |
]); |
| 1436 |
|
| 1437 |
// Ensure consistency: Replace 'bot' role with 'assistant' in conversation history |
| 1438 |
foreach ($conversation_history as &$message) { |
| 1439 |
if ($message['role'] === 'bot') { |
| 1440 |
$message['role'] = 'assistant'; |
| 1441 |
} |
| 1442 |
} |
| 1443 |
|
| 1444 |
// Build the request body |
| 1445 |
$body = json_encode([ |
| 1446 |
'model' => $selected_model, |
| 1447 |
'messages' => $conversation_history, |
| 1448 |
'temperature' => 0.8, |
| 1449 |
'stream' => false |
| 1450 |
]); |
| 1451 |
|
| 1452 |
// Set up the API request |
| 1453 |
$args = [ |
| 1454 |
'body' => $body, |
| 1455 |
'headers' => [ |
| 1456 |
'Content-Type' => 'application/json', |
| 1457 |
'Authorization' => 'Bearer ' . $api_key, |
| 1458 |
], |
| 1459 |
'timeout' => 60, |
| 1460 |
'redirection' => 5, |
| 1461 |
'blocking' => true, |
| 1462 |
'httpversion' => '1.0', |
| 1463 |
'sslverify' => true, |
| 1464 |
]; |
| 1465 |
|
| 1466 |
// Make the API request |
| 1467 |
$response = wp_remote_post('https://api.openai.com/v1/chat/completions', $args); |
| 1468 |
|
| 1469 |
// Process the response |
| 1470 |
if (is_wp_error($response)) { |
| 1471 |
return "Sorry, there was an error processing your request."; |
| 1472 |
} |
| 1473 |
|
| 1474 |
$response_body = json_decode(wp_remote_retrieve_body($response), true); |
| 1475 |
|
| 1476 |
if (isset($response_body['choices'][0]['message']['content'])) { |
| 1477 |
return trim($response_body['choices'][0]['message']['content']); |
| 1478 |
} else { |
| 1479 |
return "Sorry, I couldn't process that request."; |
| 1480 |
} |
| 1481 |
} |
| 1482 |
|
| 1483 |
private function mxchat_generate_response_xai($selected_model, $xai_api_key, $conversation_history, $relevant_content) { |
| 1484 |
// Get system prompt instructions from options |
| 1485 |
$system_prompt_instructions = isset($this->options['system_prompt_instructions']) ? $this->options['system_prompt_instructions'] : ''; |
| 1486 |
|
| 1487 |
// Add system prompt to relevant content |
| 1488 |
$content_with_instructions = $system_prompt_instructions . " " . $relevant_content; |
| 1489 |
|
| 1490 |
// Prepend system instructions to the conversation history |
| 1491 |
array_unshift($conversation_history, [ |
| 1492 |
'role' => 'system', |
| 1493 |
'content' => "Here are your instructions: " . $content_with_instructions |
| 1494 |
]); |
| 1495 |
|
| 1496 |
// Ensure consistency: Replace 'bot' role with 'assistant' in conversation history |
| 1497 |
foreach ($conversation_history as &$message) { |
| 1498 |
if ($message['role'] === 'bot') { |
| 1499 |
$message['role'] = 'assistant'; |
| 1500 |
} |
| 1501 |
} |
| 1502 |
|
| 1503 |
// Build the request body |
| 1504 |
$body = json_encode([ |
| 1505 |
'model' => $selected_model, |
| 1506 |
'messages' => $conversation_history, |
| 1507 |
'temperature' => 0.8, |
| 1508 |
'stream' => false |
| 1509 |
]); |
| 1510 |
|
| 1511 |
// Set up the API request |
| 1512 |
$args = [ |
| 1513 |
'body' => $body, |
| 1514 |
'headers' => [ |
| 1515 |
'Content-Type' => 'application/json', |
| 1516 |
'Authorization' => 'Bearer ' . $xai_api_key, |
| 1517 |
], |
| 1518 |
'timeout' => 60, |
| 1519 |
'redirection' => 5, |
| 1520 |
'blocking' => true, |
| 1521 |
'httpversion' => '1.0', |
| 1522 |
'sslverify' => true, |
| 1523 |
]; |
| 1524 |
|
| 1525 |
// Make the API request |
| 1526 |
$response = wp_remote_post('https://api.x.ai/v1/chat/completions', $args); |
| 1527 |
|
| 1528 |
// Process the response |
| 1529 |
if (is_wp_error($response)) { |
| 1530 |
return "Sorry, there was an error processing your request."; |
| 1531 |
} |
| 1532 |
|
| 1533 |
$response_body = json_decode(wp_remote_retrieve_body($response), true); |
| 1534 |
|
| 1535 |
if (isset($response_body['choices'][0]['message']['content'])) { |
| 1536 |
return trim($response_body['choices'][0]['message']['content']); |
| 1537 |
} else { |
| 1538 |
return "Sorry, I couldn't process that request."; |
| 1539 |
} |
| 1540 |
} |
| 1541 |
|
| 1542 |
private function mxchat_generate_response_claude($selected_model, $claude_api_key, $conversation_history, $relevant_content) { |
| 1543 |
// Get system prompt instructions from options for Claude's top-level system parameter |
| 1544 |
$system_prompt_instructions = isset($this->options['system_prompt_instructions']) ? $this->options['system_prompt_instructions'] : ''; |
| 1545 |
|
| 1546 |
// Ensure consistency: Replace 'bot' role with 'assistant' in conversation history |
| 1547 |
foreach ($conversation_history as &$message) { |
| 1548 |
if ($message['role'] === 'bot') { |
| 1549 |
$message['role'] = 'assistant'; |
| 1550 |
} |
| 1551 |
} |
| 1552 |
|
| 1553 |
// Add relevant content as the latest user message in conversation history |
| 1554 |
$conversation_history[] = [ |
| 1555 |
'role' => 'user', |
| 1556 |
'content' => $relevant_content |
| 1557 |
]; |
| 1558 |
|
| 1559 |
// Build the request body with Claude's expected structure, using system instructions as a top-level parameter |
| 1560 |
$body = json_encode([ |
| 1561 |
'model' => $selected_model, |
| 1562 |
'max_tokens' => 1000, |
| 1563 |
'temperature' => 0.8, |
| 1564 |
'system' => $system_prompt_instructions, // Set the system prompt at the top level as required |
| 1565 |
'messages' => $conversation_history |
| 1566 |
]); |
| 1567 |
|
| 1568 |
// Set up the API request with the necessary headers |
| 1569 |
$args = [ |
| 1570 |
'body' => $body, |
| 1571 |
'headers' => [ |
| 1572 |
'Content-Type' => 'application/json', |
| 1573 |
'x-api-key' => $claude_api_key, |
| 1574 |
'anthropic-version' => '2023-06-01', |
| 1575 |
], |
| 1576 |
'timeout' => 60, |
| 1577 |
'redirection' => 5, |
| 1578 |
'blocking' => true, |
| 1579 |
'httpversion' => '1.0', |
| 1580 |
'sslverify' => true, |
| 1581 |
]; |
| 1582 |
|
| 1583 |
// Make the API request |
| 1584 |
$response = wp_remote_post('https://api.anthropic.com/v1/messages', $args); |
| 1585 |
|
| 1586 |
/* |
| 1587 |
// Check for errors and log the response for debugging |
| 1588 |
if (is_wp_error($response)) { |
| 1589 |
error_log("Claude API request error: " . print_r($response->get_error_message(), true)); |
| 1590 |
return "Sorry, there was an error processing your request."; |
| 1591 |
} |
| 1592 |
*/ |
| 1593 |
|
| 1594 |
|
| 1595 |
// Decode the response and parse according to the expected Claude response structure |
| 1596 |
$response_body = json_decode(wp_remote_retrieve_body($response), true); |
| 1597 |
//error_log("Claude API response: " . print_r($response_body, true)); |
| 1598 |
|
| 1599 |
// Check if the response has the expected 'content' array with 'text' blocks |
| 1600 |
if (isset($response_body['content'][0]['text'])) { |
| 1601 |
return trim($response_body['content'][0]['text']); |
| 1602 |
} else { |
| 1603 |
return "Sorry, I couldn't process that request."; |
| 1604 |
} |
| 1605 |
} |
| 1606 |
|
| 1607 |
public function mxchat_dismiss_pre_chat_message() { |
| 1608 |
// Get and sanitize the user identifier |
| 1609 |
$user_id = $this->mxchat_get_user_identifier(); |
| 1610 |
$user_id = sanitize_key($user_id); |
| 1611 |
|
| 1612 |
// Set a transient to track that the user has dismissed the pre-chat message |
| 1613 |
$transient_key = 'mxchat_pre_chat_message_dismissed_' . $user_id; |
| 1614 |
set_transient($transient_key, true, DAY_IN_SECONDS); |
| 1615 |
|
| 1616 |
wp_send_json_success(); |
| 1617 |
} |
| 1618 |
|
| 1619 |
public function mxchat_check_pre_chat_message_status() { |
| 1620 |
// Get and sanitize the user identifier |
| 1621 |
$user_id = $this->mxchat_get_user_identifier(); |
| 1622 |
$user_id = sanitize_key($user_id); |
| 1623 |
|
| 1624 |
// Check if the transient exists (i.e., if the message was dismissed) |
| 1625 |
$transient_key = 'mxchat_pre_chat_message_dismissed_' . $user_id; |
| 1626 |
$dismissed = get_transient($transient_key); |
| 1627 |
|
| 1628 |
// Log the result to see if it's being set correctly |
| 1629 |
//error_log("Check pre-chat message dismissed for $user_id: " . ($dismissed ? 'Yes' : 'No')); |
| 1630 |
|
| 1631 |
if ($dismissed) { |
| 1632 |
wp_send_json_success(['dismissed' => true]); |
| 1633 |
} else { |
| 1634 |
wp_send_json_success(['dismissed' => false]); |
| 1635 |
} |
| 1636 |
|
| 1637 |
wp_die(); |
| 1638 |
} |
| 1639 |
|
| 1640 |
private function mxchat_calculate_cosine_similarity($vectorA, $vectorB) { |
| 1641 |
if (!is_array($vectorA) || !is_array($vectorB) || empty($vectorA) || empty($vectorB)) { |
| 1642 |
return 0; |
| 1643 |
} |
| 1644 |
|
| 1645 |
$dotProduct = array_sum(array_map(function ($a, $b) { |
| 1646 |
return $a * $b; |
| 1647 |
}, $vectorA, $vectorB)); |
| 1648 |
$normA = sqrt(array_sum(array_map(function ($a) { |
| 1649 |
return $a * $a; |
| 1650 |
}, $vectorA))); |
| 1651 |
$normB = sqrt(array_sum(array_map(function ($b) { |
| 1652 |
return $b * $b; |
| 1653 |
}, $vectorB))); |
| 1654 |
|
| 1655 |
if ($normA == 0 || $normB == 0) { |
| 1656 |
return 0; |
| 1657 |
} |
| 1658 |
|
| 1659 |
return $dotProduct / ($normA * $normB); |
| 1660 |
} |
| 1661 |
|
| 1662 |
public function mxchat_enqueue_scripts_styles() { |
| 1663 |
// Define version numbers for the styles and scripts |
| 1664 |
$chat_style_version = '1.4.5'; // Replace with your actual version |
| 1665 |
$chat_script_version = '1.4.5'; // Replace with your actual version |
| 1666 |
|
| 1667 |
// Enqueue the script |
| 1668 |
wp_enqueue_script( |
| 1669 |
'mxchat-chat-js', |
| 1670 |
plugin_dir_url(__FILE__) . '../js/chat-script.js', |
| 1671 |
array('jquery'), |
| 1672 |
$chat_script_version, |
| 1673 |
true |
| 1674 |
); |
| 1675 |
|
| 1676 |
// Enqueue the CSS |
| 1677 |
wp_enqueue_style( |
| 1678 |
'mxchat-chat-css', |
| 1679 |
plugin_dir_url(__FILE__) . '../css/chat-style.css', |
| 1680 |
array(), |
| 1681 |
$chat_style_version |
| 1682 |
); |
| 1683 |
|
| 1684 |
// Fetch options from the database |
| 1685 |
$this->options = get_option('mxchat_options'); |
| 1686 |
|
| 1687 |
// Prepare settings for JavaScript |
| 1688 |
$style_settings = array( |
| 1689 |
'ajax_url' => admin_url('admin-ajax.php'), |
| 1690 |
'nonce' => wp_create_nonce('mxchat_chat_nonce'), |
| 1691 |
'link_target_toggle' => $this->options['link_target_toggle'] ?? 'off', |
| 1692 |
'rate_limit_message' => $this->options['rate_limit_message'] ?? 'Rate limit exceeded. Please try again later.', |
| 1693 |
'complianz_toggle' => isset($this->options['complianz_toggle']) && $this->options['complianz_toggle'] === 'on', |
| 1694 |
'user_message_bg_color' => $this->options['user_message_bg_color'] ?? '#fff', |
| 1695 |
'user_message_font_color' => $this->options['user_message_font_color'] ?? '#212121', |
| 1696 |
'bot_message_bg_color' => $this->options['bot_message_bg_color'] ?? '#212121', |
| 1697 |
'bot_message_font_color' => $this->options['bot_message_font_color'] ?? '#fff', |
| 1698 |
'top_bar_bg_color' => $this->options['top_bar_bg_color'] ?? '#212121', |
| 1699 |
'send_button_font_color' => $this->options['send_button_font_color'] ?? '#212121', |
| 1700 |
'close_button_color' => $this->options['close_button_color'] ?? '#fff', |
| 1701 |
'chatbot_background_color' => $this->options['chatbot_background_color'] ?? '#212121', |
| 1702 |
'chatbot_bg_color' => $this->options['chatbot_bg_color'] ?? '#fff', |
| 1703 |
'icon_color' => $this->options['icon_color'] ?? '#fff', |
| 1704 |
'chat_input_font_color' => $this->options['chat_input_font_color'] ?? '#212121', |
| 1705 |
'chat_persistence_toggle' => $this->options['chat_persistence_toggle'] ?? 'off', |
| 1706 |
'appendWidgetToBody' => $this->options['append_to_body'] ?? 'off', // Example for consistency |
| 1707 |
); |
| 1708 |
|
| 1709 |
// Pass the settings to the script |
| 1710 |
wp_localize_script('mxchat-chat-js', 'mxchatChat', $style_settings); |
| 1711 |
} |
| 1712 |
|
| 1713 |
|
| 1714 |
public function mxchat_reset_rate_limits() { |
| 1715 |
global $wpdb; |
| 1716 |
|
| 1717 |
// Define a cache key pattern for rate limits |
| 1718 |
$cache_key_pattern = 'mxchat_chat_limit_%'; |
| 1719 |
|
| 1720 |
// Retrieve all option names matching the pattern |
| 1721 |
// phpcs:ignore WordPress.DB.DirectDatabaseQuery.NoCaching, WordPress.DB.DirectDatabaseQuery.DirectQuery |
| 1722 |
$option_names = $wpdb->get_col("SELECT option_name FROM {$wpdb->options} WHERE option_name LIKE 'mxchat_chat_limit_%'"); |
| 1723 |
|
| 1724 |
// db call ok; no-cache ok |
| 1725 |
// phpcs:ignore WordPress.DB.DirectDatabaseQuery.DirectQuery -- db call ok |
| 1726 |
$wpdb->query("DELETE FROM {$wpdb->options} WHERE option_name LIKE 'mxchat_chat_limit_%'"); |
| 1727 |
|
| 1728 |
// Clear the relevant cache entries |
| 1729 |
foreach ($option_names as $option_name) { |
| 1730 |
wp_cache_delete($option_name, 'options'); |
| 1731 |
} |
| 1732 |
|
| 1733 |
// Optionally, clear a general cache if you have one |
| 1734 |
wp_cache_delete('mxchat_all_chat_limits', 'options'); |
| 1735 |
} |
| 1736 |
|
| 1737 |
private function mxchat_fetch_woocommerce_products() { |
| 1738 |
// Ensure WooCommerce is active |
| 1739 |
if (!class_exists('WooCommerce')) { |
| 1740 |
return []; |
| 1741 |
} |
| 1742 |
|
| 1743 |
$args = array( |
| 1744 |
'post_type' => 'product', |
| 1745 |
'post_status' => 'publish', |
| 1746 |
'posts_per_page' => -1, |
| 1747 |
); |
| 1748 |
|
| 1749 |
$products = get_posts($args); |
| 1750 |
$product_data = []; |
| 1751 |
|
| 1752 |
foreach ($products as $product) { |
| 1753 |
$product_id = $product->ID; |
| 1754 |
$product_obj = wc_get_product($product_id); |
| 1755 |
|
| 1756 |
$product_data[] = array( |
| 1757 |
'id' => $product_id, |
| 1758 |
'name' => $product_obj->get_name(), |
| 1759 |
'description' => $product_obj->get_description(), |
| 1760 |
'short_description' => $product_obj->get_short_description(), |
| 1761 |
'url' => get_permalink($product_id), |
| 1762 |
'price' => $product_obj->get_regular_price(), |
| 1763 |
'sale_price' => $product_obj->get_sale_price(), |
| 1764 |
'stock_status' => $product_obj->get_stock_status(), |
| 1765 |
'sku' => $product_obj->get_sku(), |
| 1766 |
'in_stock' => $product_obj->is_in_stock(), |
| 1767 |
'total_sales' => $product_obj->get_total_sales(), |
| 1768 |
); |
| 1769 |
} |
| 1770 |
|
| 1771 |
return $product_data; |
| 1772 |
} |
| 1773 |
|
| 1774 |
} |
| 1775 |
?> |
| 1776 |
|
