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MxChat – AI Chatbot & Content Generation for WordPress / 3.0.3
MxChat – AI Chatbot & Content Generation for WordPress v3.0.3
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← All changes | mxchat-basic.php +904 -57 2.0.63.0.3 View file →
@@ -1,9 +1,10 @@
1 1 <?php
2 2 /**
3 3 * Plugin Name: MxChat
4 + * Plugin URI: https://mxchat.ai/
4 5 * Description: AI chatbot for WordPress with OpenAI, Claude, xAI, DeepSeek, live agent, PDF uploads, WooCommerce, and training on website data.
5 - * Version: 2.0.6
6 + * Version: 3.0.3
6 7 * Author: MxChat
7 8 * Author URI: https://mxchat.ai
8 9 * License: GPLv2 or later
9 10 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
@@ -14,30 +15,96 @@
14 15 if (!defined('ABSPATH')) {
15 16 exit; // Exit if accessed directly.
16 17 }
17 18
19 +// Define plugin version constant for asset versioning
20 +// Reads version from plugin header automatically
21 +if (!defined('MXCHAT_VERSION')) {
22 + $plugin_data = get_file_data(__FILE__, array('Version' => 'Version'), 'plugin');
23 + define('MXCHAT_VERSION', $plugin_data['Version']);
24 +}
18 25
19 26 function mxchat_load_textdomain() {
20 - load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages');
27 + $domain = 'mxchat';
28 + $locale = determine_locale();
29 +
30 + // First, try to load from /wp-content/languages/plugins/ (preserved during updates)
31 + $mo_file = WP_LANG_DIR . '/plugins/' . $domain . '-' . $locale . '.mo';
32 + if (file_exists($mo_file)) {
33 + load_textdomain($domain, $mo_file);
34 + return;
35 + }
36 +
37 + // Fallback to plugin's /languages directory
38 + load_plugin_textdomain($domain, false, dirname(plugin_basename(__FILE__)) . '/languages');
21 39 }
22 -add_action('plugins_loaded', 'mxchat_load_textdomain');
40 +add_action('init', 'mxchat_load_textdomain');
23 41
24 -// Include classes
25 -require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-integrator.php';
26 -require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-admin.php';
27 -require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-public.php';
28 -require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-utils.php';
29 -require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-user.php';
30 -require_once plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
31 -require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-word-handler.php';
42 +// Include classes with error handling
43 +function mxchat_include_classes() {
44 + $class_files = array(
45 + 'includes/class-mxchat-integrator.php',
46 + 'includes/class-mxchat-admin.php',
47 + 'includes/class-mxchat-public.php',
48 + 'includes/class-mxchat-utils.php',
49 + 'includes/class-mxchat-user.php',
50 + 'includes/class-mxchat-meta-box.php',
51 + 'includes/class-mxchat-chunker.php',
52 + 'includes/pdf-parser/alt_autoload.php',
53 + 'includes/class-mxchat-word-handler.php',
54 + 'admin/class-ajax-handler.php',
55 + 'admin/class-pinecone-manager.php',
56 + 'admin/class-knowledge-manager.php'
57 + );
32 58
33 -function mxchat_activate() {
59 + foreach ($class_files as $file) {
60 + $file_path = plugin_dir_path(__FILE__) . $file;
61 + if (file_exists($file_path)) {
62 + require_once $file_path;
63 + } else {
64 + //error_log('MxChat: Missing class file - ' . $file);
65 + }
66 + }
67 +}
68 +
69 +/**
70 + * Create URL click tracking table
71 + */
72 +function mxchat_create_url_clicks_table() {
34 73 global $wpdb;
74 +
75 + $table_name = $wpdb->prefix . 'mxchat_url_clicks';
76 +
35 77 $charset_collate = $wpdb->get_charset_collate();
78 +
79 + $sql = "CREATE TABLE $table_name (
80 + id mediumint(9) NOT NULL AUTO_INCREMENT,
81 + session_id varchar(100) NOT NULL,
82 + clicked_url text NOT NULL,
83 + message_context text,
84 + click_timestamp datetime DEFAULT CURRENT_TIMESTAMP,
85 + user_ip varchar(45),
86 + user_agent text,
87 + PRIMARY KEY (id),
88 + KEY session_id (session_id),
89 + KEY click_timestamp (click_timestamp)
90 + ) $charset_collate;";
91 +
92 + require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
93 + dbDelta($sql);
94 +}
36 95
37 - // Chat Transcripts Table
38 - $chat_transcripts_table = $wpdb->prefix . 'mxchat_chat_transcripts';
39 - $sql_chat_transcripts = "CREATE TABLE $chat_transcripts_table (
96 +/**
97 + * FIXED: Robust table creation and column management
98 + */
99 +function mxchat_create_chat_transcripts_table() {
100 + global $wpdb;
101 +
102 + $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
103 + $charset_collate = $wpdb->get_charset_collate();
104 +
105 + // Create table with ALL columns including user_name from the start
106 + $sql = "CREATE TABLE $table_name (
40 107 id MEDIUMINT(9) NOT NULL AUTO_INCREMENT,
41 108 user_id MEDIUMINT(9) DEFAULT 0,
42 109 session_id VARCHAR(255) NOT NULL,
43 110 role VARCHAR(255) NOT NULL,
@@ -42,25 +109,411 @@
42 109 session_id VARCHAR(255) NOT NULL,
43 110 role VARCHAR(255) NOT NULL,
44 111 message TEXT NOT NULL,
45 112 user_email VARCHAR(255) DEFAULT NULL,
113 + user_name VARCHAR(100) DEFAULT NULL,
114 + user_identifier VARCHAR(255) DEFAULT NULL,
115 + originating_page_url TEXT DEFAULT NULL,
116 + originating_page_title VARCHAR(500) DEFAULT NULL,
46 117 timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
47 - PRIMARY KEY (id)
118 + PRIMARY KEY (id),
119 + KEY session_id (session_id),
120 + KEY user_email (user_email),
121 + KEY timestamp (timestamp)
48 122 ) $charset_collate;";
123 +
124 + require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
125 + $result = dbDelta($sql);
126 +
127 + // Log the result for debugging
128 + if (empty($result)) {
129 + //error_log("MxChat: dbDelta returned empty result for chat transcripts table");
130 + } else {
131 + //error_log("MxChat: dbDelta result: " . print_r($result, true));
132 + }
133 +
134 + // IMPORTANT: Ensure all columns exist for existing installations
135 + mxchat_ensure_all_columns($table_name);
136 +}
49 137
50 - // System Prompt Content Table
138 +/**
139 + * Ensure all required columns exist (for upgrades)
140 + */
141 +function mxchat_ensure_all_columns($table_name) {
142 + global $wpdb;
143 +
144 + // First check if table exists
145 + $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
146 + if (!$table_exists) {
147 + //error_log("MxChat: Table $table_name does not exist, cannot add columns");
148 + return;
149 + }
150 +
151 + // Define all required columns and their types
152 + $required_columns = [
153 + 'user_identifier' => 'VARCHAR(255) DEFAULT NULL',
154 + 'user_email' => 'VARCHAR(255) DEFAULT NULL',
155 + 'user_name' => 'VARCHAR(100) DEFAULT NULL',
156 + 'originating_page_url' => 'TEXT DEFAULT NULL',
157 + 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL',
158 + 'rag_context' => 'LONGTEXT DEFAULT NULL'
159 + ];
160 +
161 + // Get existing columns
162 + $existing_columns = $wpdb->get_results("SHOW COLUMNS FROM $table_name");
163 + if (empty($existing_columns)) {
164 + //error_log("MxChat: Could not get columns for table $table_name");
165 + return;
166 + }
167 +
168 + $existing_column_names = array_column($existing_columns, 'Field');
169 +
170 + // Add missing columns
171 + foreach ($required_columns as $column_name => $column_definition) {
172 + if (!in_array($column_name, $existing_column_names)) {
173 + $alter_sql = "ALTER TABLE $table_name ADD COLUMN $column_name $column_definition";
174 + $result = $wpdb->query($alter_sql);
175 +
176 + if ($result === false) {
177 + //error_log("MxChat: Failed to add column $column_name to $table_name. Error: " . $wpdb->last_error);
178 + } else {
179 + //error_log("MxChat: Successfully added column $column_name to $table_name");
180 + }
181 + }
182 + }
183 +}
184 +
185 +/**
186 + * Add role restriction column to knowledge base table
187 + */
188 +function mxchat_add_role_restriction_column() {
189 + global $wpdb;
190 + $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
191 +
192 + // Check if table exists first
193 + $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
194 + if (!$table_exists) {
195 + //error_log("MxChat: System prompt content table does not exist, cannot add role_restriction column");
196 + return;
197 + }
198 +
199 + // Check if column already exists
200 + $column_exists = $wpdb->get_results(
201 + $wpdb->prepare(
202 + "SHOW COLUMNS FROM {$table_name} LIKE %s",
203 + 'role_restriction'
204 + )
205 + );
206 +
207 + if (empty($column_exists)) {
208 + $alter_sql = "ALTER TABLE {$table_name} ADD COLUMN role_restriction VARCHAR(50) DEFAULT 'public' AFTER source_url";
209 + $result = $wpdb->query($alter_sql);
210 +
211 + if ($result === false) {
212 + //error_log("MxChat: Failed to add role_restriction column. Error: " . $wpdb->last_error);
213 + } else {
214 + //error_log("MxChat: Successfully added role_restriction column");
215 +
216 + // Set all existing records to 'public' (everyone can access)
217 + $update_result = $wpdb->query(
218 + "UPDATE {$table_name}
219 + SET role_restriction = 'public'
220 + WHERE role_restriction IS NULL OR role_restriction = ''"
221 + );
222 +
223 + if ($update_result !== false) {
224 + //error_log("MxChat: Updated {$update_result} existing records to public access");
225 + }
226 + }
227 + }
228 +}
229 +
230 +/**
231 + * Add enabled_bots column to intents table for multi-bot action filtering
232 + */
233 +function mxchat_add_enabled_bots_column() {
234 + global $wpdb;
235 + $table_name = $wpdb->prefix . 'mxchat_intents';
236 +
237 + // Check if table exists first
238 + $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
239 + if (!$table_exists) {
240 + //error_log("MxChat: Intents table does not exist, cannot add enabled_bots column");
241 + return;
242 + }
243 +
244 + // Check if column already exists
245 + $column_exists = $wpdb->get_results(
246 + $wpdb->prepare(
247 + "SHOW COLUMNS FROM {$table_name} LIKE %s",
248 + 'enabled_bots'
249 + )
250 + );
251 +
252 + if (empty($column_exists)) {
253 + $alter_sql = "ALTER TABLE {$table_name} ADD COLUMN enabled_bots LONGTEXT DEFAULT NULL AFTER enabled";
254 + $result = $wpdb->query($alter_sql);
255 +
256 + if ($result === false) {
257 + //error_log("MxChat: Failed to add enabled_bots column. Error: " . $wpdb->last_error);
258 + } else {
259 + //error_log("MxChat: Successfully added enabled_bots column");
260 +
261 + // Set all existing actions to work with 'default' bot for backward compatibility
262 + $default_bots = json_encode(['default']);
263 + $update_result = $wpdb->query(
264 + $wpdb->prepare(
265 + "UPDATE {$table_name}
266 + SET enabled_bots = %s
267 + WHERE enabled_bots IS NULL OR enabled_bots = ''",
268 + $default_bots
269 + )
270 + );
271 +
272 + if ($update_result !== false) {
273 + //error_log("MxChat: Updated {$update_result} existing actions to work with default bot");
274 + }
275 + }
276 + }
277 +}
278 +
279 +/**
280 + * Create Pinecone role restrictions table with multi-bot support
281 + */
282 +function mxchat_create_pinecone_roles_table() {
283 + global $wpdb;
284 +
285 + $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
286 + $charset_collate = $wpdb->get_charset_collate();
287 +
288 + $sql = "CREATE TABLE $table_name (
289 + id mediumint(9) NOT NULL AUTO_INCREMENT,
290 + vector_id varchar(255) NOT NULL,
291 + bot_id varchar(50) NOT NULL DEFAULT 'default',
292 + source_url text,
293 + role_restriction varchar(50) DEFAULT 'public',
294 + updated_at timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
295 + PRIMARY KEY (id),
296 + UNIQUE KEY vector_bot (vector_id, bot_id),
297 + KEY role_restriction (role_restriction),
298 + KEY bot_id (bot_id)
299 + ) $charset_collate;";
300 +
301 + require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
302 + dbDelta($sql);
303 +}
304 +
305 +/**
306 + * Add bot_id column to mxchat_pinecone_roles table for multi-bot support
307 + * This migration runs once to update existing installations
308 + */
309 +function mxchat_migrate_pinecone_roles_add_bot_id() {
310 + global $wpdb;
311 +
312 + // Check if migration already ran
313 + $migration_version = get_option('mxchat_pinecone_roles_migration_version', '0');
314 + if (version_compare($migration_version, '2.5.2', '>=')) {
315 + return; // Already migrated
316 + }
317 +
318 + $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
319 +
320 + // Check if table exists
321 + if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
322 + return; // Table doesn't exist yet
323 + }
324 +
325 + // Check if bot_id column already exists
326 + $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'bot_id'");
327 +
328 + if (empty($column_exists)) {
329 + // Add bot_id column
330 + $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN bot_id VARCHAR(50) NOT NULL DEFAULT 'default' AFTER vector_id");
331 +
332 + // Update the unique key to include bot_id
333 + $wpdb->query("ALTER TABLE {$table_name} DROP INDEX vector_id");
334 + $wpdb->query("ALTER TABLE {$table_name} ADD UNIQUE KEY vector_bot (vector_id, bot_id)");
335 +
336 + // Add index for bot_id
337 + $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
338 +
339 + error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
340 + }
341 +
342 + // Mark migration as complete
343 + update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
344 +}
345 +
346 +/**
347 + * 2.5.6: Add content_type column to mxchat_system_prompt_content table
348 + * Enables filtering knowledge base by content type (posts, pages, PDFs, etc.)
349 + */
350 +function mxchat_migrate_add_content_type_column() {
351 + global $wpdb;
352 +
353 + // Check if migration already ran
354 + $migration_version = get_option('mxchat_content_type_migration_version', '0');
355 + if (version_compare($migration_version, '2.5.6', '>=')) {
356 + return;
357 + }
358 +
359 + $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
360 +
361 + // Check if table exists
362 + if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
363 + return;
364 + }
365 +
366 + // Check if content_type column already exists
367 + $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'content_type'");
368 +
369 + if (empty($column_exists)) {
370 + // Add content_type column with default value 'content' for backwards compatibility
371 + $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN content_type VARCHAR(50) DEFAULT 'content' AFTER role_restriction");
372 +
373 + // Add index for better query performance
374 + $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
375 +
376 + error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
377 + }
378 +
379 + // Mark migration as complete
380 + update_option('mxchat_content_type_migration_version', '2.5.6');
381 +}
382 +
383 +/**
384 + * 2.5.2: Create queue processing tables for reliable background processing
385 + */
386 +function mxchat_create_queue_tables() {
387 + global $wpdb;
388 + $charset_collate = $wpdb->get_charset_collate();
389 +
390 + // Main queue table
391 + $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
392 + $sql_queue = "CREATE TABLE $queue_table (
393 + id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
394 + queue_id varchar(64) NOT NULL,
395 + item_type varchar(20) NOT NULL,
396 + item_data longtext NOT NULL,
397 + status varchar(20) NOT NULL DEFAULT 'pending',
398 + bot_id varchar(50) NOT NULL DEFAULT 'default',
399 + priority int(11) NOT NULL DEFAULT 0,
400 + attempts int(11) NOT NULL DEFAULT 0,
401 + max_attempts int(11) NOT NULL DEFAULT 3,
402 + error_message text DEFAULT NULL,
403 + created_at datetime NOT NULL,
404 + started_at datetime DEFAULT NULL,
405 + completed_at datetime DEFAULT NULL,
406 + PRIMARY KEY (id),
407 + KEY queue_id (queue_id),
408 + KEY status (status),
409 + KEY item_type (item_type),
410 + KEY priority (priority)
411 + ) $charset_collate;";
412 +
413 + // Queue metadata table
414 + $meta_table = $wpdb->prefix . 'mxchat_queue_meta';
415 + $sql_meta = "CREATE TABLE $meta_table (
416 + id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
417 + queue_id varchar(64) NOT NULL,
418 + meta_key varchar(255) NOT NULL,
419 + meta_value longtext,
420 + PRIMARY KEY (id),
421 + KEY queue_id (queue_id),
422 + KEY meta_key (meta_key)
423 + ) $charset_collate;";
424 +
425 + require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
426 + dbDelta($sql_queue);
427 + dbDelta($sql_meta);
428 +
429 + //error_log("MxChat: Queue tables created/updated successfully");
430 +}
431 +
432 +/**
433 + * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
434 + * This fixes "url, source_url. The supplied values may be too long" errors
435 + */
436 +function mxchat_fix_url_column_size() {
437 + global $wpdb;
438 + $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
439 +
440 + // Check if table exists
441 + $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
442 + if (!$table_exists) {
443 + return;
444 + }
445 +
446 + // Change url and source_url from VARCHAR to TEXT to handle long URLs
447 + // This is especially important for URLs with UTF-8 encoded characters (Hebrew, Arabic, etc.)
448 + $wpdb->query("ALTER TABLE {$table_name} MODIFY COLUMN url TEXT");
449 + $wpdb->query("ALTER TABLE {$table_name} MODIFY COLUMN source_url TEXT");
450 +
451 + //error_log("MxChat: Successfully updated url and source_url columns to TEXT type for long URL support");
452 +}
453 +
454 +/**
455 + * Migrate deprecated AI models to their replacements
456 + * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
457 + */
458 +function mxchat_migrate_deprecated_models() {
459 + $options = get_option('mxchat_options', array());
460 +
461 + // Check if model is set and is the deprecated Claude 3.5 Sonnet
462 + if (isset($options['model']) && $options['model'] === 'claude-3-5-sonnet-20241022') {
463 + // Update to Claude 3.7 Sonnet (the replacement model)
464 + $options['model'] = 'claude-3-7-sonnet-20250219';
465 + update_option('mxchat_options', $options);
466 +
467 + // Set a flag to show admin notice
468 + update_option('mxchat_model_migrated_notice', true);
469 +
470 + //error_log('MxChat: Migrated deprecated Claude 3.5 Sonnet to Claude 3.7 Sonnet');
471 + }
472 +}
473 +
474 +/**
475 + * Show admin notice after model migration
476 + */
477 +function mxchat_show_migration_notice() {
478 + if (get_option('mxchat_model_migrated_notice')) {
479 + ?>
480 + <div class="notice notice-info is-dismissible">
481 + <p>
482 + <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
483 + <?php esc_html_e('Your chatbot model has been automatically updated from Claude 3.5 Sonnet to Claude 3.7 Sonnet due to the deprecation of the previous model by Anthropic. Claude 3.7 Sonnet offers improved performance and capabilities.', 'mxchat'); ?>
484 + </p>
485 + </div>
486 + <?php
487 + delete_option('mxchat_model_migrated_notice');
488 + }
489 +}
490 +
491 +function mxchat_activate() {
492 + global $wpdb;
493 + $charset_collate = $wpdb->get_charset_collate();
494 +
495 + //error_log("MxChat: Running activation function");
496 +
497 + // Create chat transcripts table with improved function
498 + mxchat_create_chat_transcripts_table();
499 +
500 + // System Prompt Content Table - UPDATED: Use TEXT for url and source_url columns
51 501 $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
52 502 $sql_system_prompt = "CREATE TABLE $system_prompt_table (
53 503 id MEDIUMINT(9) NOT NULL AUTO_INCREMENT,
54 - url VARCHAR(255) NOT NULL,
504 + url TEXT NOT NULL,
55 505 article_content LONGTEXT NOT NULL,
56 506 embedding_vector LONGTEXT,
57 - source_url VARCHAR(255) DEFAULT NULL,
507 + source_url TEXT DEFAULT NULL,
508 + role_restriction VARCHAR(50) DEFAULT 'public',
509 + content_type VARCHAR(50) DEFAULT 'content',
58 510 timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
59 - PRIMARY KEY (id)
511 + PRIMARY KEY (id),
512 + KEY content_type (content_type)
60 513 ) $charset_collate;";
61 514
62 - // Intents Table
515 + // Intents Table - NOW INCLUDES enabled_bots column from the start
63 516 $intents_table = $wpdb->prefix . 'mxchat_intents';
64 517 $sql_intents_table = "CREATE TABLE $intents_table (
65 518 id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
66 519 intent_label VARCHAR(255) NOT NULL,
@@ -67,51 +520,322 @@
67 520 phrases TEXT NOT NULL,
68 521 embedding_vector LONGTEXT NOT NULL,
69 522 callback_function VARCHAR(255) NOT NULL,
70 523 similarity_threshold FLOAT DEFAULT 0.85,
524 + enabled TINYINT(1) NOT NULL DEFAULT 1,
525 + enabled_bots LONGTEXT DEFAULT NULL,
71 526 PRIMARY KEY (id)
72 527 ) $charset_collate;";
73 528
74 529 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
75 530
76 - // Create or update tables
77 - dbDelta($sql_chat_transcripts);
531 + // Create other tables
78 532 dbDelta($sql_system_prompt);
79 533 dbDelta($sql_intents_table);
80 534
81 - // Ensure additional columns in `mxchat_chat_transcripts`
82 - mxchat_add_missing_columns($chat_transcripts_table, 'user_identifier', 'VARCHAR(255)');
83 - mxchat_add_missing_columns($chat_transcripts_table, 'user_email', 'VARCHAR(255) DEFAULT NULL');
535 + // Create URL click tracking table
536 + mxchat_create_url_clicks_table();
537 +
538 + // Create Pinecone roles table
539 + mxchat_create_pinecone_roles_table();
540 +
541 + // NEW 2.5.2: Create queue processing tables
542 + mxchat_create_queue_tables();
84 543
85 - // Ensure additional columns in `mxchat_system_prompt_content`
86 - mxchat_add_missing_columns($system_prompt_table, 'embedding_vector', 'LONGTEXT');
87 - mxchat_add_missing_columns($system_prompt_table, 'source_url', 'VARCHAR(255) DEFAULT NULL');
544 + // Ensure additional columns in system prompt table
545 + $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
546 + if (!empty($existing_system_columns)) {
547 + $existing_system_column_names = array_column($existing_system_columns, 'Field');
548 +
549 + if (!in_array('embedding_vector', $existing_system_column_names)) {
550 + $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN embedding_vector LONGTEXT");
551 + }
552 + if (!in_array('source_url', $existing_system_column_names)) {
553 + $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN source_url TEXT DEFAULT NULL");
554 + }
555 + if (!in_array('role_restriction', $existing_system_column_names)) {
556 + $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN role_restriction VARCHAR(50) DEFAULT 'public' AFTER source_url");
557 + }
558 + }
88 559
89 560 // Set default thresholds for existing intents
90 561 $wpdb->query("UPDATE {$intents_table} SET similarity_threshold = 0.85 WHERE similarity_threshold IS NULL");
562 +
563 + // Ensure enabled column exists in intents table
564 + $existing_intent_columns = $wpdb->get_results("SHOW COLUMNS FROM $intents_table");
565 + if (!empty($existing_intent_columns)) {
566 + $existing_intent_column_names = array_column($existing_intent_columns, 'Field');
567 +
568 + if (!in_array('enabled', $existing_intent_column_names)) {
569 + $wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled TINYINT(1) NOT NULL DEFAULT 1");
570 + }
571 +
572 + // Ensure enabled_bots column exists for existing installations
573 + if (!in_array('enabled_bots', $existing_intent_column_names)) {
574 + $wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled_bots LONGTEXT DEFAULT NULL AFTER enabled");
575 +
576 + // Set existing actions to work with default bot
577 + $default_bots = json_encode(['default']);
578 + $wpdb->query($wpdb->prepare(
579 + "UPDATE {$intents_table} SET enabled_bots = %s WHERE enabled_bots IS NULL",
580 + $default_bots
581 + ));
582 + }
583 + }
91 584
92 - // Update plugin version in the database
93 - update_option('mxchat_plugin_version', '2.0.6');
585 + // Run migration for existing installations
586 + mxchat_migrate_pinecone_roles_add_bot_id();
587 +
588 + // Setup cron jobs
589 + mxchat_setup_cron_jobs();
590 +
591 + // Update version
592 + update_option('mxchat_plugin_version', MXCHAT_VERSION);
593 +
594 + //error_log("MxChat: Activation function completed");
94 595 }
95 596
597 +/**
598 + * Setup cron jobs on plugin activation
599 + */
600 +function mxchat_setup_cron_jobs() {
601 + // Clear any existing cron jobs first
602 + wp_clear_scheduled_hook('mxchat_reset_rate_limits');
603 +
604 + // Check if WordPress cron is disabled
605 + if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
606 + // Set flag to use fallback system
607 + update_option('mxchat_use_fallback_rate_limits', true);
608 + update_option('mxchat_next_rate_limit_check', time() + 3600);
609 + return;
610 + }
611 +
612 + // Schedule the rate limit reset cron job
613 + $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
614 +
615 + if ($result === false) {
616 + // Fallback if scheduling fails
617 + update_option('mxchat_use_fallback_rate_limits', true);
618 + update_option('mxchat_next_rate_limit_check', time() + 3600);
619 + } else {
620 + // Clear fallback flags if cron scheduling succeeded
621 + delete_option('mxchat_use_fallback_rate_limits');
622 + }
623 +
624 + // Schedule transcript cleanup if configured
625 + $transcript_options = get_option('mxchat_transcripts_options', array());
626 + $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
627 +
628 + if ($cleanup_interval !== 'never') {
629 + // Check if not already scheduled
630 + if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
631 + // Schedule to run daily at 3 AM
632 + $next_run = strtotime('tomorrow 3:00 AM');
633 + wp_schedule_event($next_run, 'daily', 'mxchat_cleanup_old_transcripts');
634 + }
635 + }
636 +}
96 637
97 -function mxchat_add_missing_columns($table, $column_name, $column_type) {
638 +/**
639 + * Clean up on plugin deactivation
640 + */
641 +function mxchat_deactivate() {
642 + // Clear scheduled cron jobs
643 + wp_clear_scheduled_hook('mxchat_reset_rate_limits');
644 + wp_clear_scheduled_hook('mxchat_cleanup_old_transcripts');
645 + wp_clear_scheduled_hook('mxchat_send_delayed_transcript');
646 +
647 + // Clear fallback options
648 + delete_option('mxchat_use_fallback_rate_limits');
649 + delete_option('mxchat_next_rate_limit_check');
650 + delete_option('mxchat_fallback_check_interval');
651 +
652 + // NOTE: We do NOT delete queue tables on deactivation
653 + // This preserves data if user accidentally deactivates the plugin
654 +}
655 +
656 +/**
657 + * Check if fallback rate limit cleanup is needed
658 + */
659 +function mxchat_check_fallback_rate_limits() {
660 + $use_fallback = get_option('mxchat_use_fallback_rate_limits', false);
661 +
662 + if (!$use_fallback) {
663 + return;
664 + }
665 +
666 + $next_check = get_option('mxchat_next_rate_limit_check', 0);
667 +
668 + if (time() >= $next_check) {
669 + // Only run reset if the MxChat_Integrator class exists
670 + if (class_exists('MxChat_Integrator')) {
671 + $integrator = new MxChat_Integrator();
672 + if (method_exists($integrator, 'mxchat_reset_rate_limits')) {
673 + $integrator->mxchat_reset_rate_limits();
674 + update_option('mxchat_next_rate_limit_check', time() + 3600);
675 + }
676 + }
677 + }
678 +}
679 +
680 +/**
681 + * Robust update checking with role restriction migration, model deprecation, and queue tables
682 + * CRITICAL: This runs on EVERY page load to ensure tables exist
683 + */
684 +function mxchat_check_for_update() {
98 685 global $wpdb;
99 - $column_exists = $wpdb->get_results($wpdb->prepare("SHOW COLUMNS FROM $table LIKE %s", $column_name));
100 - if (empty($column_exists)) {
101 - $wpdb->query("ALTER TABLE $table ADD COLUMN $column_name $column_type");
686 +
687 + try {
688 + $current_version = get_option('mxchat_plugin_version', '0.0.0');
689 + $plugin_version = MXCHAT_VERSION;
690 +
691 + // Always ensure critical tables exist (even if version matches)
692 + // This handles manual table deletion or fresh installs
693 + $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
694 + $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
695 +
696 + $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$chat_table'") === $chat_table;
697 + $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
698 +
699 + if (!$chat_exists || !$queue_exists) {
700 + //error_log("MxChat: Critical tables missing, running activation");
701 + mxchat_activate();
702 + }
703 +
704 + // Version-specific migrations
705 + if ($current_version !== $plugin_version) {
706 + //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
707 +
708 + // Run live agent update BEFORE updating the stored version
709 + mxchat_handle_live_agent_update();
710 +
711 + // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
712 + mxchat_handle_theme_migration_notice();
713 +
714 + // Run role restriction migration for 2.4.1
715 + if (version_compare($current_version, '2.4.1', '<')) {
716 + mxchat_add_role_restriction_column();
717 + }
718 +
719 + // Run enabled_bots column migration for 2.4.4
720 + if (version_compare($current_version, '2.4.4', '<')) {
721 + mxchat_add_enabled_bots_column();
722 + }
723 +
724 + // Run model migration for 2.5.1 (Claude deprecation)
725 + if (version_compare($current_version, '2.5.1', '<')) {
726 + mxchat_migrate_deprecated_models();
727 + }
728 +
729 + // 2.5.2: Ensure queue tables exist and fix URL column sizes for all users upgrading to 2.5.2
730 + if (version_compare($current_version, '2.5.2', '<')) {
731 + mxchat_create_queue_tables();
732 + mxchat_fix_url_column_size(); // NEW: Fix URL column size for long URLs
733 + //error_log("MxChat: Queue tables created and URL columns updated for upgrade to 2.5.2");
734 + }
735 +
736 + // 2.6.0: Ensure rag_context column exists for retrieved documents feature
737 + if (version_compare($current_version, '2.6.0', '<')) {
738 + $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
739 + mxchat_ensure_all_columns($chat_table);
740 + //error_log("MxChat: rag_context column migration for 2.6.0");
741 + }
742 +
743 + // Run full activation to ensure everything is up to date
744 + mxchat_activate();
745 +
746 + // Run migration functions
747 + mxchat_migrate_live_agent_status();
748 +
749 + // Add the cleanup function for version 2.1.8
750 + if (version_compare($current_version, '2.1.8', '<')) {
751 + $deleted = mxchat_cleanup_orphaned_chat_history();
752 + }
753 +
754 + // Update version LAST
755 + update_option('mxchat_plugin_version', $plugin_version);
756 +
757 + //error_log("MxChat: Updated from version $current_version to $plugin_version");
758 + }
759 +
760 + } catch (Exception $e) {
761 + //error_log('MxChat update error: ' . $e->getMessage());
762 + // Don't update version if there was an error
102 763 }
103 764 }
104 765
105 -function mxchat_check_for_update() {
106 - $current_version = get_option('mxchat_plugin_version');
107 - $plugin_version = '2.0.6'; // Update with your latest version
766 +/**
767 + * Ensure tables exist on every admin load for fresh installations
768 + * This is a safety net for cases where activation hook doesn't fire
769 + */
770 +function mxchat_ensure_tables_exist() {
771 + global $wpdb;
772 +
773 + // Only run for admin users to avoid performance impact
774 + if (!current_user_can('administrator')) {
775 + return;
776 + }
777 +
778 + // Check if we've already verified tables in this session
779 + static $tables_checked = false;
780 + if ($tables_checked) {
781 + return;
782 + }
783 + $tables_checked = true;
784 +
785 + $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
786 + $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
787 +
788 + $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
789 + $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
790 +
791 + if (!$chat_exists || !$queue_exists) {
792 + //error_log("MxChat: Tables missing on admin load, running activation");
793 + mxchat_activate();
794 + }
795 +}
108 796
109 - if ($current_version !== $plugin_version) {
110 - mxchat_activate(); // Run the activation script to apply schema changes
111 - mxchat_migrate_live_agent_status(); // Add migration for live agent status
112 - update_option('mxchat_plugin_version', $plugin_version); // Update the version
797 +/**
798 + * Clean up orphaned chat history options from the wp_options table
799 + * @return int Number of options deleted
800 + */
801 +function mxchat_cleanup_orphaned_chat_history() {
802 + global $wpdb;
803 + $count = 0;
804 +
805 + // Get all option keys that match our pattern
806 + $history_options = $wpdb->get_results(
807 + "SELECT option_name FROM {$wpdb->options}
808 + WHERE option_name LIKE 'mxchat_history_%'"
809 + );
810 +
811 + if (!empty($history_options)) {
812 + foreach ($history_options as $option) {
813 + // Extract the session ID from the option name
814 + $session_id = str_replace('mxchat_history_', '', $option->option_name);
815 +
816 + // Check if this session still exists in the custom table
817 + $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
818 + $exists = $wpdb->get_var(
819 + $wpdb->prepare(
820 + "SELECT COUNT(*) FROM {$table_name} WHERE session_id = %s",
821 + $session_id
822 + )
823 + );
824 +
825 + // If session doesn't exist in the main table, delete the option
826 + if ($exists == 0) {
827 + delete_option($option->option_name);
828 + // Also delete related metadata
829 + delete_option("mxchat_email_{$session_id}");
830 + delete_option("mxchat_name_{$session_id}");
831 + delete_option("mxchat_agent_name_{$session_id}");
832 + $count++;
833 + }
834 + }
113 835 }
836 +
837 + return $count;
114 838 }
115 839
116 840 function mxchat_migrate_live_agent_status() {
117 841 $options = get_option('mxchat_options', []);
@@ -144,16 +868,149 @@
144 868 update_option('mxchat_options', $options);
145 869 }
146 870 }
147 871
872 +function mxchat_handle_live_agent_update() {
873 + // Get the CURRENT stored version (before it gets updated)
874 + $current_version = get_option('mxchat_plugin_version', '0.0.0');
875 + $new_version = '2.2.2';
148 876
149 -// Run the update check function on every request
150 -add_action('plugins_loaded', 'mxchat_check_for_update');
877 + // Only run this once for the update to 2.2.2
878 + $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
151 879
880 + // Check if we're upgrading TO 2.2.2 and haven't handled this yet
881 + if (version_compare($current_version, $new_version, '<') && !$update_handled) {
882 + $options = get_option('mxchat_options', array());
883 +
884 + // Check if live agent was previously enabled
885 + if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
886 + // Disable live agent
887 + $options['live_agent_status'] = 'off';
888 + update_option('mxchat_options', $options);
889 +
890 + // Set flag to show the notification banner
891 + update_option('mxchat_show_live_agent_disabled_notice', true);
892 + }
893 +
894 + // Mark this update as handled
895 + update_option('mxchat_live_agent_update_2_2_2_handled', true);
896 + }
897 +}
898 +
899 +/**
900 + * Handle theme migration notice for version 3.0.1
901 + * Shows a dismissible notice to Pro users about migrating AI-generated themes
902 + */
903 +function mxchat_handle_theme_migration_notice() {
904 + // Get the CURRENT stored version (before it gets updated)
905 + $current_version = get_option('mxchat_plugin_version', '0.0.0');
906 + $target_version = '3.0.1';
907 +
908 + // Only run this once for the update to 3.0.1
909 + $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
910 +
911 + // Check if we're upgrading TO 3.0.1 and haven't handled this yet
912 + if (version_compare($current_version, $target_version, '<') && !$update_handled) {
913 + // Check if Pro is activated - only show to Pro users
914 + $license_status = get_option('mxchat_license_status', 'inactive');
915 + $is_pro = ($license_status === 'active' || $license_status === esc_html__('active', 'mxchat'));
916 +
917 + if ($is_pro) {
918 + // Set flag to show the theme migration notification banner
919 + update_option('mxchat_show_theme_migration_notice', true);
920 + }
921 +
922 + // Mark this update as handled (whether Pro or not)
923 + update_option('mxchat_theme_migration_update_3_0_1_handled', true);
924 + }
925 +}
926 +
927 +// Initialize plugin safely
928 +function mxchat_init() {
929 + // Include all class files first
930 + mxchat_include_classes();
931 +
932 + // Run update check (this also ensures tables exist)
933 + mxchat_check_for_update();
934 +
935 + // CRITICAL: Ensure tables exist on admin pages (safety net)
936 + add_action('admin_init', 'mxchat_ensure_tables_exist', 1);
937 +
938 + // Add fallback rate limit check
939 + add_action('init', 'mxchat_check_fallback_rate_limits', 5);
940 +
941 + // Add migration notice hook
942 + add_action('admin_notices', 'mxchat_show_migration_notice');
943 +
944 + // Initialize classes with error handling
945 + try {
946 + // Initialize admin classes
947 + if (is_admin()) {
948 + if (class_exists('MxChat_Knowledge_Manager')) {
949 + $mxchat_knowledge_manager = new MxChat_Knowledge_Manager();
950 +
951 + if (class_exists('MxChat_Admin')) {
952 + $mxchat_admin = new MxChat_Admin($mxchat_knowledge_manager);
953 + }
954 + }
955 +
956 + // Initialize meta box class
957 + if (class_exists('MxChat_Meta_Box')) {
958 + new MxChat_Meta_Box();
959 + }
960 + }
961 +
962 + // Initialize public classes
963 + if (class_exists('MxChat_Public')) {
964 + $mxchat_public = new MxChat_Public();
965 + }
966 +
967 + if (class_exists('MxChat_Integrator')) {
968 + global $mxchat_integrator;
969 + $mxchat_integrator = new MxChat_Integrator();
970 + }
971 +
972 + } catch (Exception $e) {
973 + //error_log('MxChat initialization error: ' . $e->getMessage());
974 +
975 + // Show admin notice if there's an error
976 + if (is_admin()) {
977 + add_action('admin_notices', function() use ($e) {
978 + echo '<div class="notice notice-error"><p>';
979 + echo '<strong>MxChat Error:</strong> Plugin initialization failed. ';
980 + echo 'Please check error logs or contact support. Error: ' . esc_html($e->getMessage());
981 + echo '</p></div>';
982 + });
983 + }
984 + }
985 +}
986 +
987 +// Run initialization on plugins_loaded
988 +add_action('plugins_loaded', 'mxchat_init');
989 +
990 +// Run migration check on admin init (for auto-updates without reactivation)
991 +add_action('admin_init', 'mxchat_check_and_run_migrations');
992 +
993 +/**
994 + * Check and run migrations on admin init
995 + * This ensures migrations run even when plugin is auto-updated
996 + */
997 +function mxchat_check_and_run_migrations() {
998 + // Only run in admin and not on every request
999 + static $checked = false;
1000 + if ($checked) {
1001 + return;
1002 + }
1003 + $checked = true;
1004 +
1005 + mxchat_migrate_pinecone_roles_add_bot_id();
1006 + mxchat_migrate_add_content_type_column();
1007 +}
1008 +
152 1009 // Register activation hook
153 1010 register_activation_hook(__FILE__, 'mxchat_activate');
154 1011
155 -
1012 +// Add cron schedule
156 1013 add_filter('cron_schedules', function($schedules) {
157 1014 $schedules['one_minute'] = array(
158 1015 'interval' => 60,
159 1016 'display' => 'Every Minute'
@@ -160,16 +1017,6 @@
160 1017 );
161 1018 return $schedules;
162 1019 });
163 1020
164 -add_action('init', function() {
165 - add_action('mxchat_process_pdf_pages', array('MxChat_Admin', 'process_pdf_pages_cron'), 10, 5);
166 - add_action('mxchat_process_sitemap_urls', array('MxChat_Admin', 'process_sitemap_urls_cron'), 10, 5);
167 -});
168 -
169 -
170 -// Instantiate classes
171 -if (is_admin()) {
172 - $mxchat_admin = new MxChat_Admin();
173 -}
174 -$mxchat_public = new MxChat_Public();
175 -$mxchat_integrator = new MxChat_Integrator();
1021 +// Register deactivation hook
1022 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');