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MxChat – AI Chatbot & Content Generation for WordPress / 2.5.4
MxChat – AI Chatbot & Content Generation for WordPress v2.5.4
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← All changes | mxchat-basic.php +34 -650 3.2.3 → 2.5.4 View file →
@@ -2,9 +2,9 @@
2 2 /**
3 3 * Plugin Name: MxChat
4 4 * Plugin URI: https://mxchat.ai/
5 5 * Description: AI chatbot for WordPress with OpenAI, Claude, xAI, DeepSeek, live agent, PDF uploads, WooCommerce, and training on website data.
6 - * Version: 3.2.3
6 + * Version: 2.5.4
7 7 * Author: MxChat
8 8 * Author URI: https://mxchat.ai
9 9 * License: GPLv2 or later
10 10 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
@@ -15,243 +15,20 @@
15 15 if (!defined('ABSPATH')) {
16 16 exit; // Exit if accessed directly.
17 17 }
18 18
19 -
20 -if (!defined('MXCHAT_DEV_MODE')) {
21 - define('MXCHAT_DEV_MODE', false);
22 -}
23 -
19 +// Define plugin version constant for asset versioning
20 +// Reads version from plugin header automatically
24 21 if (!defined('MXCHAT_VERSION')) {
25 22 $plugin_data = get_file_data(__FILE__, array('Version' => 'Version'), 'plugin');
26 - $version = $plugin_data['Version'];
27 - if (MXCHAT_DEV_MODE) {
28 - $version .= '.' . time();
29 - }
30 - define('MXCHAT_VERSION', $version);
23 + define('MXCHAT_VERSION', $plugin_data['Version']);
31 24 }
32 25
33 26 function mxchat_load_textdomain() {
34 - $domain = 'mxchat';
35 - $locale = determine_locale();
36 -
37 - // First, try to load from /wp-content/languages/plugins/ (preserved during updates)
38 - $mo_file = WP_LANG_DIR . '/plugins/' . $domain . '-' . $locale . '.mo';
39 - if (file_exists($mo_file)) {
40 - load_textdomain($domain, $mo_file);
41 - return;
42 - }
43 -
44 - // Fallback to plugin's /languages directory
45 - load_plugin_textdomain($domain, false, dirname(plugin_basename(__FILE__)) . '/languages');
27 + load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages');
46 28 }
47 29 add_action('init', 'mxchat_load_textdomain');
48 30
49 -/**
50 - * Exclude MxChat assets from caching plugin optimizations
51 - *
52 - * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache,
53 - * W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by
54 - * removing "unused" CSS, minifying/combining JS, or deferring/delaying jQuery.
55 - *
56 - * Both chat-script.js and floating-script.js depend on jQuery, so jQuery must also
57 - * be excluded from any optimization that changes load order or timing.
58 - */
59 -
60 -// ── WP Rocket ────────────────────────────────────────────────────────────────
61 -
62 -// Exclude from Remove Unused CSS (RUCSS)
63 -add_filter('rocket_rucss_inline_atts_exclusions', function($exclusions) {
64 - if (!is_array($exclusions)) $exclusions = array();
65 - $exclusions[] = 'mxchat';
66 - return $exclusions;
67 -});
68 -
69 -// Exclude CSS from minification/combination
70 -add_filter('rocket_exclude_css', function($excluded) {
71 - if (!is_array($excluded)) $excluded = array();
72 - $excluded[] = '/plugins/mxchat-basic/css/chat-style.css';
73 - return $excluded;
74 -});
75 -
76 -// Exclude JS from minification/combination
77 -add_filter('rocket_exclude_js', function($excluded) {
78 - if (!is_array($excluded)) $excluded = array();
79 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
80 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
81 - $excluded[] = '/jquery-core';
82 - $excluded[] = '/jquery.min.js';
83 - $excluded[] = '/jquery.js';
84 - $excluded[] = '/jquery-migrate';
85 - return $excluded;
86 -});
87 -
88 -// Exclude JS from defer
89 -add_filter('rocket_exclude_defer_js', function($excluded) {
90 - if (!is_array($excluded)) $excluded = array();
91 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
92 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
93 - $excluded[] = '/jquery-core';
94 - $excluded[] = '/jquery.min.js';
95 - $excluded[] = '/jquery.js';
96 - $excluded[] = '/jquery-migrate';
97 - return $excluded;
98 -});
99 -
100 -// Exclude from delay JS execution
101 -add_filter('rocket_delay_js_exclusions', function($excluded) {
102 - if (!is_array($excluded)) $excluded = array();
103 - $excluded[] = 'mxchat';
104 - $excluded[] = 'chat-script';
105 - $excluded[] = 'floating-script';
106 - $excluded[] = '/jquery-core';
107 - $excluded[] = '/jquery.min.js';
108 - $excluded[] = '/jquery.js';
109 - $excluded[] = '/jquery-migrate';
110 - return $excluded;
111 -});
112 -
113 -// ── LiteSpeed Cache ──────────────────────────────────────────────────────────
114 -
115 -// Exclude CSS from optimization
116 -add_filter('litespeed_optimize_css_excludes', function($excluded) {
117 - if (!is_array($excluded)) $excluded = array();
118 - $excluded[] = 'chat-style.css';
119 - $excluded[] = 'mxchat';
120 - return $excluded;
121 -});
122 -
123 -// Exclude from UCSS (Unique CSS) - prevents LiteSpeed from stripping "unused" MxChat CSS
124 -add_filter('litespeed_ucss_whitelist', function($whitelist) {
125 - if (!is_array($whitelist)) $whitelist = array();
126 - $whitelist[] = '.mxchat-chatbot-wrapper';
127 - $whitelist[] = '.floating-chatbot';
128 - $whitelist[] = '.floating-chatbot-button';
129 - $whitelist[] = '.chatbot-top-bar';
130 - $whitelist[] = '.mxchat-chatbot';
131 - $whitelist[] = '.chat-container';
132 - $whitelist[] = '.chat-box';
133 - $whitelist[] = '.bot-message';
134 - $whitelist[] = '.input-container';
135 - $whitelist[] = '.chat-input';
136 - $whitelist[] = '.send-button';
137 - $whitelist[] = '.pre-chat-message';
138 - $whitelist[] = '.mxchat-popular-questions';
139 - $whitelist[] = '.chat-toolbar';
140 - $whitelist[] = '.exit-chat';
141 - $whitelist[] = '.email-blocker';
142 - return $whitelist;
143 -});
144 -
145 -// Exclude CSS from CCSS (Critical CSS) generation
146 -add_filter('litespeed_optm_ccss_exc', function($excluded) {
147 - if (!is_array($excluded)) $excluded = array();
148 - $excluded[] = 'chat-style.css';
149 - $excluded[] = 'mxchat';
150 - return $excluded;
151 -});
152 -
153 -// Exclude JS from defer
154 -add_filter('litespeed_optm_js_defer_exc', function($excluded) {
155 - if (!is_array($excluded)) $excluded = array();
156 - $excluded[] = 'chat-script.js';
157 - $excluded[] = 'floating-script.js';
158 - $excluded[] = 'mxchat';
159 - $excluded[] = 'jquery.min.js';
160 - $excluded[] = 'jquery.js';
161 - return $excluded;
162 -});
163 -
164 -// Exclude JS from combining
165 -add_filter('litespeed_optm_js_exc', function($excluded) {
166 - if (!is_array($excluded)) $excluded = array();
167 - $excluded[] = 'chat-script.js';
168 - $excluded[] = 'floating-script.js';
169 - $excluded[] = 'mxchat';
170 - $excluded[] = 'jquery.min.js';
171 - $excluded[] = 'jquery.js';
172 - return $excluded;
173 -});
174 -
175 -// Exclude JS from delayed execution
176 -add_filter('litespeed_optm_js_delay_exc', function($excluded) {
177 - if (!is_array($excluded)) $excluded = array();
178 - $excluded[] = 'chat-script.js';
179 - $excluded[] = 'floating-script.js';
180 - $excluded[] = 'mxchat';
181 - return $excluded;
182 -});
183 -
184 -// Exclude from Guest Mode optimization
185 -add_filter('litespeed_guest_optm_exc', function($excluded) {
186 - if (!is_array($excluded)) $excluded = array();
187 - $excluded[] = 'mxchat';
188 - $excluded[] = 'chat-style';
189 - $excluded[] = 'chat-script';
190 - $excluded[] = 'floating-script';
191 - return $excluded;
192 -});
193 -
194 -// ── Autoptimize ──────────────────────────────────────────────────────────────
195 -
196 -// Exclude CSS from optimization (comma-separated strings)
197 -add_filter('autoptimize_filter_css_exclude', function($excluded) {
198 - if (!is_string($excluded)) $excluded = '';
199 - return $excluded . ', mxchat, chat-style.css';
200 -});
201 -
202 -// Exclude JS from optimization (comma-separated strings)
203 -add_filter('autoptimize_filter_js_exclude', function($excluded) {
204 - if (!is_string($excluded)) $excluded = '';
205 - return $excluded . ', mxchat, chat-script.js, floating-script.js, jquery.min.js, jquery.js';
206 -});
207 -
208 -// ── SG Optimizer (SiteGround) ────────────────────────────────────────────────
209 -
210 -add_filter('sgo_js_minify_exclude', function($excluded) {
211 - if (!is_array($excluded)) $excluded = array();
212 - $excluded[] = 'chat-script.js';
213 - $excluded[] = 'floating-script.js';
214 - $excluded[] = 'jquery.min.js';
215 - return $excluded;
216 -});
217 -
218 -add_filter('sgo_javascript_combine_exclude', function($excluded) {
219 - if (!is_array($excluded)) $excluded = array();
220 - $excluded[] = 'chat-script.js';
221 - $excluded[] = 'floating-script.js';
222 - $excluded[] = 'jquery.min.js';
223 - return $excluded;
224 -});
225 -
226 -add_filter('sgo_js_async_exclude', function($excluded) {
227 - if (!is_array($excluded)) $excluded = array();
228 - $excluded[] = 'chat-script.js';
229 - $excluded[] = 'floating-script.js';
230 - $excluded[] = 'jquery.min.js';
231 - return $excluded;
232 -});
233 -
234 -// ── W3 Total Cache ───────────────────────────────────────────────────────────
235 -
236 -add_filter('w3tc_minify_js_do_tag_minification', function($do_minify, $script_tag, $file) {
237 - if (strpos($file, 'chat-script.js') !== false ||
238 - strpos($file, 'floating-script.js') !== false ||
239 - strpos($file, 'jquery.min.js') !== false ||
240 - strpos($file, 'jquery.js') !== false) {
241 - return false;
242 - }
243 - return $do_minify;
244 -}, 10, 3);
245 -
246 -// ── WP Super Cache ──────────────────────────────────────────────────────────
247 -
248 -add_filter('wpsc_rejected_uri', function($rejected) {
249 - if (!is_array($rejected)) $rejected = array();
250 - $rejected[] = 'wp-admin/admin-ajax.php';
251 - return $rejected;
252 -});
253 -
254 31 // Include classes with error handling
255 32 function mxchat_include_classes() {
256 33 $class_files = array(
257 34 'includes/class-mxchat-integrator.php',
@@ -259,11 +36,10 @@
259 36 'includes/class-mxchat-public.php',
260 37 'includes/class-mxchat-utils.php',
261 38 'includes/class-mxchat-user.php',
262 39 'includes/class-mxchat-meta-box.php',
263 - 'includes/class-mxchat-chunker.php',
40 + 'includes/pdf-parser/alt_autoload.php',
264 41 'includes/class-mxchat-word-handler.php',
265 - 'includes/class-mxchat-content-generator.php',
266 42 'admin/class-ajax-handler.php',
267 43 'admin/class-pinecone-manager.php',
268 44 'admin/class-knowledge-manager.php'
269 45 );
@@ -278,24 +54,8 @@
278 54 }
279 55 }
280 56
281 57 /**
282 - * Lazy-load the PDF parser library only when needed.
283 - * Avoids loading 44 files on every page request.
284 - */
285 -function mxchat_load_pdf_parser() {
286 - if (class_exists('\Smalot\PdfParser\Parser')) {
287 - return true;
288 - }
289 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
290 - if (file_exists($autoload_path)) {
291 - require_once $autoload_path;
292 - return true;
293 - }
294 - return false;
295 -}
296 -
297 -/**
298 58 * Create URL click tracking table
299 59 */
300 60 function mxchat_create_url_clicks_table() {
301 61 global $wpdb;
@@ -378,13 +138,12 @@
378 138
379 139 // Define all required columns and their types
380 140 $required_columns = [
381 141 'user_identifier' => 'VARCHAR(255) DEFAULT NULL',
382 - 'user_email' => 'VARCHAR(255) DEFAULT NULL',
142 + 'user_email' => 'VARCHAR(255) DEFAULT NULL',
383 143 'user_name' => 'VARCHAR(100) DEFAULT NULL',
384 144 'originating_page_url' => 'TEXT DEFAULT NULL',
385 - 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL',
386 - 'rag_context' => 'LONGTEXT DEFAULT NULL'
145 + 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL'
387 146 ];
388 147
389 148 // Get existing columns
390 149 $existing_columns = $wpdb->get_results("SHOW COLUMNS FROM $table_name");
@@ -504,158 +263,32 @@
504 263 }
505 264 }
506 265
507 266 /**
508 - * Create Pinecone role restrictions table with multi-bot support
267 + * Create Pinecone role restrictions table
509 268 */
510 269 function mxchat_create_pinecone_roles_table() {
511 270 global $wpdb;
512 -
271 +
513 272 $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
514 273 $charset_collate = $wpdb->get_charset_collate();
515 -
274 +
516 275 $sql = "CREATE TABLE $table_name (
517 276 id mediumint(9) NOT NULL AUTO_INCREMENT,
518 277 vector_id varchar(255) NOT NULL,
519 - bot_id varchar(50) NOT NULL DEFAULT 'default',
520 278 source_url text,
521 279 role_restriction varchar(50) DEFAULT 'public',
522 280 updated_at timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
523 281 PRIMARY KEY (id),
524 - UNIQUE KEY vector_bot (vector_id, bot_id),
525 - KEY role_restriction (role_restriction),
526 - KEY bot_id (bot_id)
282 + UNIQUE KEY vector_id (vector_id),
283 + KEY role_restriction (role_restriction)
527 284 ) $charset_collate;";
528 -
285 +
529 286 require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
530 287 dbDelta($sql);
531 288 }
532 289
533 290 /**
534 - * Add bot_id column to mxchat_pinecone_roles table for multi-bot support
535 - * This migration runs once to update existing installations
536 - */
537 -function mxchat_migrate_pinecone_roles_add_bot_id() {
538 - global $wpdb;
539 -
540 - // Check if migration already ran
541 - $migration_version = get_option('mxchat_pinecone_roles_migration_version', '0');
542 - if (version_compare($migration_version, '2.5.2', '>=')) {
543 - return; // Already migrated
544 - }
545 -
546 - $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
547 -
548 - // Check if table exists
549 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
550 - return; // Table doesn't exist yet
551 - }
552 -
553 - // Check if bot_id column already exists
554 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'bot_id'");
555 -
556 - if (empty($column_exists)) {
557 - // Add bot_id column
558 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN bot_id VARCHAR(50) NOT NULL DEFAULT 'default' AFTER vector_id");
559 -
560 - // Update the unique key to include bot_id
561 - $wpdb->query("ALTER TABLE {$table_name} DROP INDEX vector_id");
562 - $wpdb->query("ALTER TABLE {$table_name} ADD UNIQUE KEY vector_bot (vector_id, bot_id)");
563 -
564 - // Add index for bot_id
565 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
566 -
567 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
568 - }
569 -
570 - // Mark migration as complete
571 - update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
572 -}
573 -
574 -/**
575 - * 2.5.6: Add content_type column to mxchat_system_prompt_content table
576 - * Enables filtering knowledge base by content type (posts, pages, PDFs, etc.)
577 - */
578 -function mxchat_migrate_add_content_type_column() {
579 - global $wpdb;
580 -
581 - // Check if migration already ran
582 - $migration_version = get_option('mxchat_content_type_migration_version', '0');
583 - if (version_compare($migration_version, '2.5.6', '>=')) {
584 - return;
585 - }
586 -
587 - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
588 -
589 - // Check if table exists
590 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
591 - return;
592 - }
593 -
594 - // Check if content_type column already exists
595 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'content_type'");
596 -
597 - if (empty($column_exists)) {
598 - // Add content_type column with default value 'content' for backwards compatibility
599 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN content_type VARCHAR(50) DEFAULT 'content' AFTER role_restriction");
600 -
601 - // Add index for better query performance
602 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
603 -
604 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
605 - }
606 -
607 - // Mark migration as complete
608 - update_option('mxchat_content_type_migration_version', '2.5.6');
609 -}
610 -
611 -/**
612 - * 3.2.3: Add embedding_model column to KB and intent tables so we can detect
613 - * when the active embedding model is changed while content is already embedded.
614 - */
615 -function mxchat_add_embedding_model_columns() {
616 - global $wpdb;
617 -
618 - $migration_version = get_option('mxchat_embedding_model_migration_version', '0');
619 - if (version_compare($migration_version, '3.2.3', '>=')) {
620 - return;
621 - }
622 -
623 - $tables = array(
624 - $wpdb->prefix . 'mxchat_system_prompt_content',
625 - $wpdb->prefix . 'mxchat_intents',
626 - $wpdb->prefix . 'mxchat_intent_phrases',
627 - );
628 -
629 - foreach ($tables as $table) {
630 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table}'") !== $table) {
631 - continue;
632 - }
633 - $col_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table} LIKE 'embedding_model'");
634 - if (empty($col_exists)) {
635 - $wpdb->query("ALTER TABLE {$table} ADD COLUMN embedding_model VARCHAR(64) DEFAULT NULL");
636 - }
637 - }
638 -
639 - // Best-effort backfill: if any existing content lacks a stamped model, assume
640 - // it was embedded with whatever model is currently selected. This is the
641 - // safest assumption for installations upgrading to 3.2.3 — if it was wrong
642 - // already, the mismatch detection will surface it on the next switch.
643 - $options = get_option('mxchat_options', array());
644 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
645 -
646 - if (get_option('mxchat_active_embedding_model', '') === '') {
647 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
648 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
649 - if ($kb_count > 0) {
650 - update_option('mxchat_active_embedding_model', $current_model, false);
651 - }
652 - }
653 -
654 - update_option('mxchat_embedding_model_migration_version', '3.2.3');
655 -}
656 -
657 -/**
658 291 * 2.5.2: Create queue processing tables for reliable background processing
659 292 */
660 293 function mxchat_create_queue_tables() {
661 294 global $wpdb;
@@ -703,32 +336,8 @@
703 336 //error_log("MxChat: Queue tables created/updated successfully");
704 337 }
705 338
706 339 /**
707 - * Create transcript translations table for persisting translations
708 - */
709 -function mxchat_create_translations_table() {
710 - global $wpdb;
711 - $charset_collate = $wpdb->get_charset_collate();
712 -
713 - $table_name = $wpdb->prefix . 'mxchat_transcript_translations';
714 - $sql = "CREATE TABLE $table_name (
715 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
716 - session_id varchar(255) NOT NULL,
717 - language_code varchar(10) NOT NULL,
718 - translations longtext NOT NULL,
719 - created_at datetime NOT NULL,
720 - updated_at datetime NOT NULL,
721 - PRIMARY KEY (id),
722 - UNIQUE KEY session_lang (session_id, language_code),
723 - KEY session_id (session_id)
724 - ) $charset_collate;";
725 -
726 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
727 - dbDelta($sql);
728 -}
729 -
730 -/**
731 340 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
732 341 * This fixes "url, source_url. The supplied values may be too long" errors
733 342 */
734 343 function mxchat_fix_url_column_size() {
@@ -751,80 +360,22 @@
751 360
752 361 /**
753 362 * Migrate deprecated AI models to their replacements
754 363 * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
755 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
756 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
757 364 */
758 -function mxchat_migrate_transcripts_charset() {
759 - global $wpdb;
760 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
761 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
762 -}
763 -
764 -/**
765 - * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
766 - */
767 365 function mxchat_migrate_deprecated_models() {
768 366 $options = get_option('mxchat_options', array());
769 - $migrated = false;
770 - $migration_message = '';
771 -
772 - if (!isset($options['model'])) {
773 - return;
774 - }
775 -
776 - $current_model = $options['model'];
777 -
778 - // Migrate deprecated Claude models to Claude Opus 4.6 (recommended replacement per Anthropic)
779 - $deprecated_claude_models = array(
780 - 'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025
781 - 'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025
782 - 'claude-3-7-sonnet-20250219', // Retiring Feb 19, 2026
783 - 'claude-3-opus-20240229', // Retired Jan 5, 2026
784 - 'claude-3-sonnet-20240229', // Legacy
785 - 'claude-3-haiku-20240307', // Legacy
786 - );
787 - if (in_array($current_model, $deprecated_claude_models, true)) {
788 - $options['model'] = 'claude-opus-4-6';
789 - $migrated = true;
790 - $migration_message = sprintf(
791 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
792 - $current_model
793 - );
794 - }
795 -
796 - // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
797 - if ($current_model === 'claude-3-5-haiku-20241022') {
798 - $options['model'] = 'claude-haiku-4-5-20251001';
799 - $migrated = true;
800 - $migration_message = 'Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.';
801 - }
802 -
803 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest
804 - if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
805 - $options['model'] = 'gpt-5.1-chat-latest';
806 - $migrated = true;
807 - $migration_message = sprintf(
808 - 'Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.',
809 - $current_model
810 - );
811 - }
812 -
813 - // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
814 - if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
815 - $options['model'] = 'gpt-5-mini';
816 - $migrated = true;
817 - $migration_message = sprintf(
818 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
819 - $current_model
820 - );
821 - }
822 -
823 - if ($migrated) {
367 +
368 + // Check if model is set and is the deprecated Claude 3.5 Sonnet
369 + if (isset($options['model']) && $options['model'] === 'claude-3-5-sonnet-20241022') {
370 + // Update to Claude 3.7 Sonnet (the replacement model)
371 + $options['model'] = 'claude-3-7-sonnet-20250219';
824 372 update_option('mxchat_options', $options);
373 +
374 + // Set a flag to show admin notice
825 375 update_option('mxchat_model_migrated_notice', true);
826 - update_option('mxchat_model_migration_message', $migration_message);
376 +
377 + //error_log('MxChat: Migrated deprecated Claude 3.5 Sonnet to Claude 3.7 Sonnet');
827 378 }
828 379 }
829 380
830 381 /**
@@ -831,19 +382,17 @@
831 382 * Show admin notice after model migration
832 383 */
833 384 function mxchat_show_migration_notice() {
834 385 if (get_option('mxchat_model_migrated_notice')) {
835 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
836 386 ?>
837 387 <div class="notice notice-info is-dismissible">
838 388 <p>
839 389 <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
840 - <?php echo esc_html($migration_message); ?>
390 + <?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'); ?>
841 391 </p>
842 392 </div>
843 393 <?php
844 394 delete_option('mxchat_model_migrated_notice');
845 - delete_option('mxchat_model_migration_message');
846 395 }
847 396 }
848 397
849 398 function mxchat_activate() {
@@ -863,13 +412,10 @@
863 412 article_content LONGTEXT NOT NULL,
864 413 embedding_vector LONGTEXT,
865 414 source_url TEXT DEFAULT NULL,
866 415 role_restriction VARCHAR(50) DEFAULT 'public',
867 - content_type VARCHAR(50) DEFAULT 'content',
868 - embedding_model VARCHAR(64) DEFAULT NULL,
869 416 timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
870 - PRIMARY KEY (id),
871 - KEY content_type (content_type)
417 + PRIMARY KEY (id)
872 418 ) $charset_collate;";
873 419
874 420 // Intents Table - NOW INCLUDES enabled_bots column from the start
875 421 $intents_table = $wpdb->prefix . 'mxchat_intents';
@@ -881,31 +427,16 @@
881 427 callback_function VARCHAR(255) NOT NULL,
882 428 similarity_threshold FLOAT DEFAULT 0.85,
883 429 enabled TINYINT(1) NOT NULL DEFAULT 1,
884 430 enabled_bots LONGTEXT DEFAULT NULL,
885 - embedding_model VARCHAR(64) DEFAULT NULL,
886 431 PRIMARY KEY (id)
887 432 ) $charset_collate;";
888 433
889 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
890 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
891 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
892 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
893 - intent_id BIGINT(20) UNSIGNED NOT NULL,
894 - phrase TEXT NOT NULL,
895 - embedding_vector LONGTEXT NOT NULL,
896 - embedding_model VARCHAR(64) DEFAULT NULL,
897 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
898 - PRIMARY KEY (id),
899 - KEY intent_id (intent_id)
900 - ) $charset_collate;";
901 -
902 434 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
903 435
904 436 // Create other tables
905 437 dbDelta($sql_system_prompt);
906 438 dbDelta($sql_intents_table);
907 - dbDelta($sql_intent_phrases_table);
908 439
909 440 // Create URL click tracking table
910 441 mxchat_create_url_clicks_table();
911 442
@@ -914,11 +445,8 @@
914 445
915 446 // NEW 2.5.2: Create queue processing tables
916 447 mxchat_create_queue_tables();
917 448
918 - // Create transcript translations table
919 - mxchat_create_translations_table();
920 -
921 449 // Ensure additional columns in system prompt table
922 450 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
923 451 if (!empty($existing_system_columns)) {
924 452 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -958,20 +486,14 @@
958 486 ));
959 487 }
960 488 }
961 489
962 - // Run migration for existing installations
963 - mxchat_migrate_pinecone_roles_add_bot_id();
964 -
965 - // 3.2.3: Add embedding_model column to KB and intent tables
966 - mxchat_add_embedding_model_columns();
967 -
968 490 // Setup cron jobs
969 491 mxchat_setup_cron_jobs();
970 492
971 493 // Update version
972 494 update_option('mxchat_plugin_version', MXCHAT_VERSION);
973 -
495 +
974 496 //error_log("MxChat: Activation function completed");
975 497 }
976 498
977 499 /**
@@ -999,21 +521,8 @@
999 521 } else {
1000 522 // Clear fallback flags if cron scheduling succeeded
1001 523 delete_option('mxchat_use_fallback_rate_limits');
1002 524 }
1003 -
1004 - // Schedule transcript cleanup if configured
1005 - $transcript_options = get_option('mxchat_transcripts_options', array());
1006 - $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1007 -
1008 - if ($cleanup_interval !== 'never') {
1009 - // Check if not already scheduled
1010 - if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1011 - // Schedule to run daily at 3 AM
1012 - $next_run = strtotime('tomorrow 3:00 AM');
1013 - wp_schedule_event($next_run, 'daily', 'mxchat_cleanup_old_transcripts');
1014 - }
1015 - }
1016 525 }
1017 526
1018 527 /**
1019 528 * Clean up on plugin deactivation
@@ -1020,10 +529,8 @@
1020 529 */
1021 530 function mxchat_deactivate() {
1022 531 // Clear scheduled cron jobs
1023 532 wp_clear_scheduled_hook('mxchat_reset_rate_limits');
1024 - wp_clear_scheduled_hook('mxchat_cleanup_old_transcripts');
1025 - wp_clear_scheduled_hook('mxchat_send_delayed_transcript');
1026 533
1027 534 // Clear fallback options
1028 535 delete_option('mxchat_use_fallback_rate_limits');
1029 536 delete_option('mxchat_next_rate_limit_check');
@@ -1083,14 +590,11 @@
1083 590
1084 591 // Version-specific migrations
1085 592 if ($current_version !== $plugin_version) {
1086 593 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1087 -
594 +
1088 595 // Run live agent update BEFORE updating the stored version
1089 596 mxchat_handle_live_agent_update();
1090 -
1091 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1092 - mxchat_handle_theme_migration_notice();
1093 597
1094 598 // Run role restriction migration for 2.4.1
1095 599 if (version_compare($current_version, '2.4.1', '<')) {
1096 600 mxchat_add_role_restriction_column();
@@ -1111,42 +615,9 @@
1111 615 mxchat_create_queue_tables();
1112 616 mxchat_fix_url_column_size(); // NEW: Fix URL column size for long URLs
1113 617 //error_log("MxChat: Queue tables created and URL columns updated for upgrade to 2.5.2");
1114 618 }
1115 -
1116 - // 2.6.0: Ensure rag_context column exists for retrieved documents feature
1117 - if (version_compare($current_version, '2.6.0', '<')) {
1118 - $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1119 - mxchat_ensure_all_columns($chat_table);
1120 - //error_log("MxChat: rag_context column migration for 2.6.0");
1121 - }
1122 -
1123 - // 3.0.5: Migrate deprecated Gemini embedding model
1124 - if (version_compare($current_version, '3.0.5', '<')) {
1125 - mxchat_migrate_gemini_embedding_model();
1126 - }
1127 -
1128 - // 3.0.6: Migrate deprecated OpenAI and Claude models
1129 - if (version_compare($current_version, '3.0.6', '<')) {
1130 - mxchat_migrate_deprecated_models();
1131 - }
1132 -
1133 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1134 - if (version_compare($current_version, '3.1.2', '<')) {
1135 - mxchat_migrate_transcripts_charset();
1136 - }
1137 -
1138 - // 3.1.7: Clean up stale shared session email/name entries
1139 - if (version_compare($current_version, '3.1.7', '<')) {
1140 - delete_option('mxchat_email_null');
1141 - delete_option('mxchat_name_null');
1142 - }
1143 -
1144 - // 3.2.3: Add embedding_model tracking columns and backfill active model
1145 - if (version_compare($current_version, '3.2.3', '<')) {
1146 - mxchat_add_embedding_model_columns();
1147 - }
1148 -
619 +
1149 620 // Run full activation to ensure everything is up to date
1150 621 mxchat_activate();
1151 622
1152 623 // Run migration functions
@@ -1278,59 +749,31 @@
1278 749 function mxchat_handle_live_agent_update() {
1279 750 // Get the CURRENT stored version (before it gets updated)
1280 751 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1281 752 $new_version = '2.2.2';
1282 -
753 +
1283 754 // Only run this once for the update to 2.2.2
1284 755 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1285 -
756 +
1286 757 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1287 758 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1288 759 $options = get_option('mxchat_options', array());
1289 -
760 +
1290 761 // Check if live agent was previously enabled
1291 762 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1292 763 // Disable live agent
1293 764 $options['live_agent_status'] = 'off';
1294 765 update_option('mxchat_options', $options);
1295 -
766 +
1296 767 // Set flag to show the notification banner
1297 768 update_option('mxchat_show_live_agent_disabled_notice', true);
1298 769 }
1299 -
770 +
1300 771 // Mark this update as handled
1301 772 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1302 773 }
1303 774 }
1304 775
1305 -/**
1306 - * Handle theme migration notice for version 3.0.1
1307 - * Shows a dismissible notice to Pro users about migrating AI-generated themes
1308 - */
1309 -function mxchat_handle_theme_migration_notice() {
1310 - // Get the CURRENT stored version (before it gets updated)
1311 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1312 - $target_version = '3.0.1';
1313 -
1314 - // Only run this once for the update to 3.0.1
1315 - $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
1316 -
1317 - // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1318 - if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1319 - // Check if Pro is activated - only show to Pro users
1320 - $license_status = get_option('mxchat_license_status', 'inactive');
1321 - $is_pro = ($license_status === 'active');
1322 -
1323 - if ($is_pro) {
1324 - // Set flag to show the theme migration notification banner
1325 - update_option('mxchat_show_theme_migration_notice', true);
1326 - }
1327 -
1328 - // Mark this update as handled (whether Pro or not)
1329 - update_option('mxchat_theme_migration_update_3_0_1_handled', true);
1330 - }
1331 -}
1332 -
1333 776 // Initialize plugin safely
1334 777 function mxchat_init() {
1335 778 // Include all class files first
1336 779 mxchat_include_classes();
@@ -1362,17 +805,10 @@
1362 805 // Initialize meta box class
1363 806 if (class_exists('MxChat_Meta_Box')) {
1364 807 new MxChat_Meta_Box();
1365 808 }
1366 -
1367 809 }
1368 -
1369 - // Initialize content generator globally — it registers wp_head hook
1370 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1371 - if (class_exists('MxChat_Content_Generator')) {
1372 - new MxChat_Content_Generator();
1373 - }
1374 -
810 +
1375 811 // Initialize public classes
1376 812 if (class_exists('MxChat_Public')) {
1377 813 $mxchat_public = new MxChat_Public();
1378 814 }
@@ -1398,60 +834,8 @@
1398 834 }
1399 835
1400 836 // Run initialization on plugins_loaded
1401 837 add_action('plugins_loaded', 'mxchat_init');
1402 -
1403 -// Run migration check on admin init (for auto-updates without reactivation)
1404 -add_action('admin_init', 'mxchat_check_and_run_migrations');
1405 -
1406 -/**
1407 - * Check and run migrations on admin init
1408 - * This ensures migrations run even when plugin is auto-updated
1409 - */
1410 -function mxchat_check_and_run_migrations() {
1411 - // Only run in admin and not on every request
1412 - static $checked = false;
1413 - if ($checked) {
1414 - return;
1415 - }
1416 - $checked = true;
1417 -
1418 - mxchat_migrate_pinecone_roles_add_bot_id();
1419 - mxchat_migrate_add_content_type_column();
1420 - mxchat_migrate_add_translations_table();
1421 -}
1422 -
1423 -/**
1424 - * Migration: Create transcript translations table (v3.0.4)
1425 - * For users upgrading from versions before 3.0.4
1426 - */
1427 -function mxchat_migrate_add_translations_table() {
1428 - $migration_key = 'mxchat_translations_table_created';
1429 -
1430 - // Check if migration already ran
1431 - if (get_option($migration_key)) {
1432 - return;
1433 - }
1434 -
1435 - // Create the translations table
1436 - mxchat_create_translations_table();
1437 -
1438 - // Mark migration as complete
1439 - update_option($migration_key, '3.0.4');
1440 -}
1441 -
1442 -/**
1443 - * Migration: Update deprecated Gemini embedding model (v3.0.5)
1444 - * Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected
1445 - */
1446 -function mxchat_migrate_gemini_embedding_model() {
1447 - $options = get_option('mxchat_options', array());
1448 -
1449 - if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') {
1450 - $options['embedding_model'] = 'gemini-embedding-001';
1451 - update_option('mxchat_options', $options);
1452 - }
1453 -}
1454 838
1455 839 // Register activation hook
1456 840 register_activation_hook(__FILE__, 'mxchat_activate');
1457 841