PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / 2.6.0
MxChat – AI Chatbot & Content Generation for WordPress v2.6.0
3.2.21 3.2.20 3.2.19 3.2.18 3.2.17 3.2.16 3.2.15 3.2.14 3.2.12 3.2.13 3.2.11 3.2.10 3.2.9 3.2.8 3.2.7 3.2.6 3.2.5 3.2.4 3.2.3 3.2.2 3.2.1 2.0.3 2.0.4 2.0.5 2.0.6 All 152 releases
← All changes | mxchat-basic.php +29 -671 3.2.62.6.0 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: 3.2.6
6 + * Version: 2.6.0
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
@@ -15,296 +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 $rejected;
252 -});
253 -
254 -// ── Page-cache bypass for chat AJAX (companion to the 3.2.6 nonce-race hotfix)
255 -// Each cache plugin gets its own filter export so that visitors hitting an
256 -// edge-cached page never receive cached chat-AJAX responses. The chat send /
257 -// stream send / file upload all POST to /wp-admin/admin-ajax.php with
258 -// `action=mxchat_*`. Without these exports, a cache plugin can stale a response
259 -// and break the per-session nonce flow on the first message.
260 -
261 -// WP Rocket — `rocket_cache_reject_uri` takes a flat array of regex strings.
262 -add_filter('rocket_cache_reject_uri', function($uris) {
263 - if (!is_array($uris)) $uris = array();
264 - $uris[] = '/wp-admin/admin-ajax\.php\?action=mxchat_.*';
265 - return $uris;
266 -});
267 -
268 -// LiteSpeed Cache — `litespeed_cache_no_cache_for_request` short-circuits
269 -// caching when the request matches our chat-AJAX pattern.
270 -add_filter('litespeed_cache_no_cache_for_request', function($no_cache) {
271 - if ($no_cache) return $no_cache;
272 - if (!empty($_SERVER['REQUEST_URI']) &&
273 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
274 - !empty($_REQUEST['action']) &&
275 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
276 - return true;
277 - }
278 - return $no_cache;
279 -});
280 -
281 -// W3 Total Cache — `w3tc_pgcache_request_skip_uri` flips page-cache off when
282 -// the URI matches.
283 -add_filter('w3tc_pgcache_request_skip_uri', function($skip) {
284 - if ($skip) return $skip;
285 - if (!empty($_SERVER['REQUEST_URI']) &&
286 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
287 - !empty($_REQUEST['action']) &&
288 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
289 - return true;
290 - }
291 - return $skip;
292 -});
293 -
294 -// FlyingPress — `flying_press_cacheable` takes a boolean and is run per
295 -// request. Same pattern as LiteSpeed / W3TC.
296 -add_filter('flying_press_cacheable', function($cacheable) {
297 - if (!$cacheable) return $cacheable;
298 - if (!empty($_SERVER['REQUEST_URI']) &&
299 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
300 - !empty($_REQUEST['action']) &&
301 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
302 - return false;
303 - }
304 - return $cacheable;
305 -});
306 -
307 31 // Include classes with error handling
308 32 function mxchat_include_classes() {
309 33 $class_files = array(
310 34 'includes/class-mxchat-integrator.php',
@@ -312,12 +36,10 @@
312 36 'includes/class-mxchat-public.php',
313 37 'includes/class-mxchat-utils.php',
314 38 'includes/class-mxchat-user.php',
315 39 'includes/class-mxchat-meta-box.php',
316 - 'includes/class-mxchat-chunker.php',
40 + 'includes/pdf-parser/alt_autoload.php',
317 41 'includes/class-mxchat-word-handler.php',
318 - 'includes/class-mxchat-content-generator.php',
319 - 'includes/class-rest-api.php',
320 42 'admin/class-ajax-handler.php',
321 43 'admin/class-pinecone-manager.php',
322 44 'admin/class-knowledge-manager.php'
323 45 );
@@ -329,35 +51,11 @@
329 51 } else {
330 52 //error_log('MxChat: Missing class file - ' . $file);
331 53 }
332 54 }
333 -
334 - // Admin pages that aren't classes (procedural include).
335 - if (is_admin()) {
336 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
337 - if (file_exists($admin_api_page)) {
338 - require_once $admin_api_page;
339 - }
340 - }
341 55 }
342 56
343 57 /**
344 - * Lazy-load the PDF parser library only when needed.
345 - * Avoids loading 44 files on every page request.
346 - */
347 -function mxchat_load_pdf_parser() {
348 - if (class_exists('\Smalot\PdfParser\Parser')) {
349 - return true;
350 - }
351 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
352 - if (file_exists($autoload_path)) {
353 - require_once $autoload_path;
354 - return true;
355 - }
356 - return false;
357 -}
358 -
359 -/**
360 58 * Create URL click tracking table
361 59 */
362 60 function mxchat_create_url_clicks_table() {
363 61 global $wpdb;
@@ -625,9 +323,9 @@
625 323
626 324 // Add index for bot_id
627 325 $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
628 326
629 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
327 + error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
630 328 }
631 329
632 330 // Mark migration as complete
633 331 update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
@@ -662,9 +360,9 @@
662 360
663 361 // Add index for better query performance
664 362 $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
665 363
666 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
364 + error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
667 365 }
668 366
669 367 // Mark migration as complete
670 368 update_option('mxchat_content_type_migration_version', '2.5.6');
@@ -670,33 +368,8 @@
670 368 update_option('mxchat_content_type_migration_version', '2.5.6');
671 369 }
672 370
673 371 /**
674 - * 3.2.4: Backfill the active embedding model option for installs that already
675 - * have KB content but no stamped model. The mismatch warning compares this
676 - * against the user's currently selected model — no per-row column needed.
677 - */
678 -function mxchat_backfill_active_embedding_model() {
679 - global $wpdb;
680 -
681 - if (get_option('mxchat_active_embedding_model', '') !== '') {
682 - return;
683 - }
684 -
685 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
686 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
687 - return;
688 - }
689 -
690 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
691 - if ($kb_count > 0) {
692 - $options = get_option('mxchat_options', array());
693 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
694 - update_option('mxchat_active_embedding_model', $current_model, false);
695 - }
696 -}
697 -
698 -/**
699 372 * 2.5.2: Create queue processing tables for reliable background processing
700 373 */
701 374 function mxchat_create_queue_tables() {
702 375 global $wpdb;
@@ -744,58 +417,8 @@
744 417 //error_log("MxChat: Queue tables created/updated successfully");
745 418 }
746 419
747 420 /**
748 - * Create transcript translations table for persisting translations
749 - */
750 -function mxchat_create_translations_table() {
751 - global $wpdb;
752 - $charset_collate = $wpdb->get_charset_collate();
753 -
754 - $table_name = $wpdb->prefix . 'mxchat_transcript_translations';
755 - $sql = "CREATE TABLE $table_name (
756 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
757 - session_id varchar(255) NOT NULL,
758 - language_code varchar(10) NOT NULL,
759 - translations longtext NOT NULL,
760 - created_at datetime NOT NULL,
761 - updated_at datetime NOT NULL,
762 - PRIMARY KEY (id),
763 - UNIQUE KEY session_lang (session_id, language_code),
764 - KEY session_id (session_id)
765 - ) $charset_collate;";
766 -
767 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
768 - dbDelta($sql);
769 -}
770 -
771 -/**
772 - * Create per-session satisfaction ratings table (v3.2.6)
773 - * Stores one 👍/👎 rating + optional feedback per chat session.
774 - */
775 -function mxchat_create_session_ratings_table() {
776 - global $wpdb;
777 - $charset_collate = $wpdb->get_charset_collate();
778 -
779 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
780 - $sql = "CREATE TABLE $table_name (
781 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
782 - session_id varchar(255) NOT NULL,
783 - bot_id varchar(50) NOT NULL DEFAULT 'default',
784 - rating_value tinyint(1) NOT NULL,
785 - rating_feedback text DEFAULT NULL,
786 - created_at datetime NOT NULL,
787 - PRIMARY KEY (id),
788 - UNIQUE KEY session_id (session_id),
789 - KEY bot_id (bot_id),
790 - KEY created_at (created_at)
791 - ) $charset_collate;";
792 -
793 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
794 - dbDelta($sql);
795 -}
796 -
797 -/**
798 421 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
799 422 * This fixes "url, source_url. The supplied values may be too long" errors
800 423 */
801 424 function mxchat_fix_url_column_size() {
@@ -818,80 +441,22 @@
818 441
819 442 /**
820 443 * Migrate deprecated AI models to their replacements
821 444 * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
822 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
823 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
824 445 */
825 -function mxchat_migrate_transcripts_charset() {
826 - global $wpdb;
827 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
828 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
829 -}
830 -
831 -/**
832 - * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
833 - */
834 446 function mxchat_migrate_deprecated_models() {
835 447 $options = get_option('mxchat_options', array());
836 - $migrated = false;
837 - $migration_message = '';
838 -
839 - if (!isset($options['model'])) {
840 - return;
841 - }
842 -
843 - $current_model = $options['model'];
844 -
845 - // Migrate deprecated Claude models to Claude Opus 4.6 (recommended replacement per Anthropic)
846 - $deprecated_claude_models = array(
847 - 'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025
848 - 'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025
849 - 'claude-3-7-sonnet-20250219', // Retiring Feb 19, 2026
850 - 'claude-3-opus-20240229', // Retired Jan 5, 2026
851 - 'claude-3-sonnet-20240229', // Legacy
852 - 'claude-3-haiku-20240307', // Legacy
853 - );
854 - if (in_array($current_model, $deprecated_claude_models, true)) {
855 - $options['model'] = 'claude-opus-4-6';
856 - $migrated = true;
857 - $migration_message = sprintf(
858 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
859 - $current_model
860 - );
861 - }
862 -
863 - // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
864 - if ($current_model === 'claude-3-5-haiku-20241022') {
865 - $options['model'] = 'claude-haiku-4-5-20251001';
866 - $migrated = true;
867 - $migration_message = 'Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.';
868 - }
869 -
870 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest
871 - if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
872 - $options['model'] = 'gpt-5.1-chat-latest';
873 - $migrated = true;
874 - $migration_message = sprintf(
875 - 'Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.',
876 - $current_model
877 - );
878 - }
879 -
880 - // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
881 - if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
882 - $options['model'] = 'gpt-5-mini';
883 - $migrated = true;
884 - $migration_message = sprintf(
885 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
886 - $current_model
887 - );
888 - }
889 -
890 - if ($migrated) {
448 +
449 + // Check if model is set and is the deprecated Claude 3.5 Sonnet
450 + if (isset($options['model']) && $options['model'] === 'claude-3-5-sonnet-20241022') {
451 + // Update to Claude 3.7 Sonnet (the replacement model)
452 + $options['model'] = 'claude-3-7-sonnet-20250219';
891 453 update_option('mxchat_options', $options);
454 +
455 + // Set a flag to show admin notice
892 456 update_option('mxchat_model_migrated_notice', true);
893 - update_option('mxchat_model_migration_message', $migration_message);
457 +
458 + //error_log('MxChat: Migrated deprecated Claude 3.5 Sonnet to Claude 3.7 Sonnet');
894 459 }
895 460 }
896 461
897 462 /**
@@ -898,19 +463,17 @@
898 463 * Show admin notice after model migration
899 464 */
900 465 function mxchat_show_migration_notice() {
901 466 if (get_option('mxchat_model_migrated_notice')) {
902 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
903 467 ?>
904 468 <div class="notice notice-info is-dismissible">
905 469 <p>
906 470 <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
907 - <?php echo esc_html($migration_message); ?>
471 + <?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'); ?>
908 472 </p>
909 473 </div>
910 474 <?php
911 475 delete_option('mxchat_model_migrated_notice');
912 - delete_option('mxchat_model_migration_message');
913 476 }
914 477 }
915 478
916 479 function mxchat_activate() {
@@ -950,26 +513,13 @@
950 513 enabled_bots LONGTEXT DEFAULT NULL,
951 514 PRIMARY KEY (id)
952 515 ) $charset_collate;";
953 516
954 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
955 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
956 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
957 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
958 - intent_id BIGINT(20) UNSIGNED NOT NULL,
959 - phrase TEXT NOT NULL,
960 - embedding_vector LONGTEXT NOT NULL,
961 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
962 - PRIMARY KEY (id),
963 - KEY intent_id (intent_id)
964 - ) $charset_collate;";
965 -
966 517 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
967 518
968 519 // Create other tables
969 520 dbDelta($sql_system_prompt);
970 521 dbDelta($sql_intents_table);
971 - dbDelta($sql_intent_phrases_table);
972 522
973 523 // Create URL click tracking table
974 524 mxchat_create_url_clicks_table();
975 525
@@ -978,14 +528,8 @@
978 528
979 529 // NEW 2.5.2: Create queue processing tables
980 530 mxchat_create_queue_tables();
981 531
982 - // Create transcript translations table
983 - mxchat_create_translations_table();
984 -
985 - // Create per-session satisfaction ratings table (v3.2.6)
986 - mxchat_create_session_ratings_table();
987 -
988 532 // Ensure additional columns in system prompt table
989 533 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
990 534 if (!empty($existing_system_columns)) {
991 535 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1028,11 +572,8 @@
1028 572
1029 573 // Run migration for existing installations
1030 574 mxchat_migrate_pinecone_roles_add_bot_id();
1031 575
1032 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1033 - mxchat_backfill_active_embedding_model();
1034 -
1035 576 // Setup cron jobs
1036 577 mxchat_setup_cron_jobs();
1037 578
1038 579 // Update version
@@ -1067,14 +608,13 @@
1067 608 // Clear fallback flags if cron scheduling succeeded
1068 609 delete_option('mxchat_use_fallback_rate_limits');
1069 610 }
1070 611
1071 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
612 + // Schedule transcript cleanup if configured
1072 613 $transcript_options = get_option('mxchat_transcripts_options', array());
1073 614 $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1074 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1075 -
1076 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
615 +
616 + if ($cleanup_interval !== 'never') {
1077 617 // Check if not already scheduled
1078 618 if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1079 619 // Schedule to run daily at 3 AM
1080 620 $next_run = strtotime('tomorrow 3:00 AM');
@@ -1151,14 +691,11 @@
1151 691
1152 692 // Version-specific migrations
1153 693 if ($current_version !== $plugin_version) {
1154 694 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1155 -
695 +
1156 696 // Run live agent update BEFORE updating the stored version
1157 697 mxchat_handle_live_agent_update();
1158 -
1159 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1160 - mxchat_handle_theme_migration_notice();
1161 698
1162 699 // Run role restriction migration for 2.4.1
1163 700 if (version_compare($current_version, '2.4.1', '<')) {
1164 701 mxchat_add_role_restriction_column();
@@ -1187,35 +724,8 @@
1187 724 mxchat_ensure_all_columns($chat_table);
1188 725 //error_log("MxChat: rag_context column migration for 2.6.0");
1189 726 }
1190 727
1191 - // 3.0.5: Migrate deprecated Gemini embedding model
1192 - if (version_compare($current_version, '3.0.5', '<')) {
1193 - mxchat_migrate_gemini_embedding_model();
1194 - }
1195 -
1196 - // 3.0.6: Migrate deprecated OpenAI and Claude models
1197 - if (version_compare($current_version, '3.0.6', '<')) {
1198 - mxchat_migrate_deprecated_models();
1199 - }
1200 -
1201 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1202 - if (version_compare($current_version, '3.1.2', '<')) {
1203 - mxchat_migrate_transcripts_charset();
1204 - }
1205 -
1206 - // 3.1.7: Clean up stale shared session email/name entries
1207 - if (version_compare($current_version, '3.1.7', '<')) {
1208 - delete_option('mxchat_email_null');
1209 - delete_option('mxchat_name_null');
1210 - }
1211 -
1212 - // 3.2.4: Backfill active embedding model option for the warning UI
1213 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1214 - if (version_compare($current_version, '3.2.4', '<')) {
1215 - mxchat_backfill_active_embedding_model();
1216 - }
1217 -
1218 728 // Run full activation to ensure everything is up to date
1219 729 mxchat_activate();
1220 730
1221 731 // Run migration functions
@@ -1347,59 +857,31 @@
1347 857 function mxchat_handle_live_agent_update() {
1348 858 // Get the CURRENT stored version (before it gets updated)
1349 859 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1350 860 $new_version = '2.2.2';
1351 -
861 +
1352 862 // Only run this once for the update to 2.2.2
1353 863 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1354 -
864 +
1355 865 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1356 866 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1357 867 $options = get_option('mxchat_options', array());
1358 -
868 +
1359 869 // Check if live agent was previously enabled
1360 870 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1361 871 // Disable live agent
1362 872 $options['live_agent_status'] = 'off';
1363 873 update_option('mxchat_options', $options);
1364 -
874 +
1365 875 // Set flag to show the notification banner
1366 876 update_option('mxchat_show_live_agent_disabled_notice', true);
1367 877 }
1368 -
878 +
1369 879 // Mark this update as handled
1370 880 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1371 881 }
1372 882 }
1373 883
1374 -/**
1375 - * Handle theme migration notice for version 3.0.1
1376 - * Shows a dismissible notice to Pro users about migrating AI-generated themes
1377 - */
1378 -function mxchat_handle_theme_migration_notice() {
1379 - // Get the CURRENT stored version (before it gets updated)
1380 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1381 - $target_version = '3.0.1';
1382 -
1383 - // Only run this once for the update to 3.0.1
1384 - $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
1385 -
1386 - // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1387 - if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1388 - // Check if Pro is activated - only show to Pro users
1389 - $license_status = get_option('mxchat_license_status', 'inactive');
1390 - $is_pro = ($license_status === 'active');
1391 -
1392 - if ($is_pro) {
1393 - // Set flag to show the theme migration notification banner
1394 - update_option('mxchat_show_theme_migration_notice', true);
1395 - }
1396 -
1397 - // Mark this update as handled (whether Pro or not)
1398 - update_option('mxchat_theme_migration_update_3_0_1_handled', true);
1399 - }
1400 -}
1401 -
1402 884 // Initialize plugin safely
1403 885 function mxchat_init() {
1404 886 // Include all class files first
1405 887 mxchat_include_classes();
@@ -1431,25 +913,10 @@
1431 913 // Initialize meta box class
1432 914 if (class_exists('MxChat_Meta_Box')) {
1433 915 new MxChat_Meta_Box();
1434 916 }
1435 -
1436 917 }
1437 -
1438 - // Initialize content generator globally — it registers wp_head hook
1439 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1440 - if (class_exists('MxChat_Content_Generator')) {
1441 - new MxChat_Content_Generator();
1442 - }
1443 -
1444 - // Initialize REST API globally — endpoints must be registered on
1445 - // every request (admin and frontend) so they're reachable via /wp-json/.
1446 - // Endpoints are auth-gated and locked until the site owner generates
1447 - // a token in MxChat → API Access.
1448 - if (class_exists('MxChat_Rest_Api')) {
1449 - new MxChat_Rest_Api();
1450 - }
1451 -
918 +
1452 919 // Initialize public classes
1453 920 if (class_exists('MxChat_Public')) {
1454 921 $mxchat_public = new MxChat_Public();
1455 922 }
@@ -1493,57 +960,10 @@
1493 960 $checked = true;
1494 961
1495 962 mxchat_migrate_pinecone_roles_add_bot_id();
1496 963 mxchat_migrate_add_content_type_column();
1497 - mxchat_migrate_add_translations_table();
1498 - mxchat_migrate_add_session_ratings_table();
1499 964 }
1500 965
1501 -/**
1502 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1503 - * For users upgrading from versions before 3.2.6
1504 - */
1505 -function mxchat_migrate_add_session_ratings_table() {
1506 - $migration_key = 'mxchat_session_ratings_table_created';
1507 - if (get_option($migration_key)) {
1508 - return;
1509 - }
1510 - mxchat_create_session_ratings_table();
1511 - update_option($migration_key, '3.2.6');
1512 -}
1513 -
1514 -/**
1515 - * Migration: Create transcript translations table (v3.0.4)
1516 - * For users upgrading from versions before 3.0.4
1517 - */
1518 -function mxchat_migrate_add_translations_table() {
1519 - $migration_key = 'mxchat_translations_table_created';
1520 -
1521 - // Check if migration already ran
1522 - if (get_option($migration_key)) {
1523 - return;
1524 - }
1525 -
1526 - // Create the translations table
1527 - mxchat_create_translations_table();
1528 -
1529 - // Mark migration as complete
1530 - update_option($migration_key, '3.0.4');
1531 -}
1532 -
1533 -/**
1534 - * Migration: Update deprecated Gemini embedding model (v3.0.5)
1535 - * Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected
1536 - */
1537 -function mxchat_migrate_gemini_embedding_model() {
1538 - $options = get_option('mxchat_options', array());
1539 -
1540 - if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') {
1541 - $options['embedding_model'] = 'gemini-embedding-001';
1542 - update_option('mxchat_options', $options);
1543 - }
1544 -}
1545 -
1546 966 // Register activation hook
1547 967 register_activation_hook(__FILE__, 'mxchat_activate');
1548 968
1549 969 // Add cron schedule
@@ -1555,67 +975,5 @@
1555 975 return $schedules;
1556 976 });
1557 977
1558 978 // Register deactivation hook
1559 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1560 -
1561 -/**
1562 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1563 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1564 - * session_id makes this naturally idempotent — only the first rating per
1565 - * session is stored; duplicate POSTs are silent no-ops.
1566 - */
1567 -function mxchat_save_session_rating() {
1568 - global $wpdb;
1569 -
1570 - $session_id = isset($_POST['session_id']) ? sanitize_text_field(wp_unslash($_POST['session_id'])) : '';
1571 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1572 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1573 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1574 -
1575 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1576 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1577 - }
1578 -
1579 - if (strlen($feedback) > 1000) {
1580 - $feedback = substr($feedback, 0, 1000);
1581 - }
1582 -
1583 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1584 - $existing = $wpdb->get_var($wpdb->prepare(
1585 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1586 - $session_id
1587 - ));
1588 -
1589 - if ($existing) {
1590 - if ($feedback !== '') {
1591 - $wpdb->update(
1592 - $table_name,
1593 - array('rating_feedback' => $feedback),
1594 - array('id' => (int) $existing),
1595 - array('%s'),
1596 - array('%d')
1597 - );
1598 - }
1599 - wp_send_json_success(array('updated' => true));
1600 - }
1601 -
1602 - $inserted = $wpdb->insert(
1603 - $table_name,
1604 - array(
1605 - 'session_id' => $session_id,
1606 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1607 - 'rating_value' => $rating_raw,
1608 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1609 - 'created_at' => current_time('mysql'),
1610 - ),
1611 - array('%s', '%s', '%d', '%s', '%s')
1612 - );
1613 -
1614 - if ($inserted === false) {
1615 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1616 - }
1617 -
1618 - wp_send_json_success(array('saved' => true));
1619 -}
1620 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1621 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
979 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');