PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / 2.4.6
MxChat – AI Chatbot & Content Generation for WordPress v2.4.6
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 +74 -1164 3.2.15 → 2.4.6 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: 3.2.15
6 + * Version: 2.4.6
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
@@ -15,405 +15,19 @@
15 15 if (!defined('ABSPATH')) {
16 16 exit; // Exit if accessed directly.
17 17 }
18 18
19 +// Define plugin version constant for asset versioning
20 +define('MXCHAT_VERSION', '2.4.6');
19 21
20 -if (!defined('MXCHAT_DEV_MODE')) {
21 - define('MXCHAT_DEV_MODE', false);
22 -}
23 -
24 -if (!defined('MXCHAT_VERSION')) {
25 - $plugin_data = get_file_data(__FILE__, array('Version' => 'Version'), 'plugin');
26 - $version = $plugin_data['Version'];
27 - // MXCHAT_BASE_VERSION: the plain header version, stable across requests even in
28 - // dev mode. Use it for anything PERSISTED or COMPARED (the stored
29 - // mxchat_plugin_version option and the migration gate in
30 - // mxchat_check_for_update). MXCHAT_VERSION keeps the time() suffix in dev for
31 - // ASSET cache-busting only — persisting the suffixed value made the version
32 - // comparison churn every request, re-running the full activation/migration
33 - // suite per page load on dev installs.
34 - define('MXCHAT_BASE_VERSION', $version);
35 - if (MXCHAT_DEV_MODE) {
36 - $version .= '.' . time();
37 - }
38 - define('MXCHAT_VERSION', $version);
39 -}
40 -
41 -/**
42 - * Honest, versioned User-Agent for MXChat remote-content ingestion fetches
43 - * (Knowledge Base PDF import, URL import, sitemap / website crawl).
44 - *
45 - * WAF rulesets (SiteGround/ModSecurity, Wordfence, Cloudflare managed rules)
46 - * flag stale spoofed-browser UAs as scrapers and return 403 — which silently
47 - * broke the single most common KB source: self-hosted media on the site's own
48 - * domain. A truthful crawler identifier is the industry norm for well-behaved
49 - * bots and lets a site owner allowlist "MXChatBot" in their WAF. Filterable so
50 - * a locked-down host can supply a different string without a code change.
51 - */
52 -if (!function_exists('mxchat_ingest_user_agent')) {
53 - function mxchat_ingest_user_agent() {
54 - $version = defined('MXCHAT_VERSION') ? MXCHAT_VERSION : '1.0';
55 - $ua = 'MXChatBot/' . $version . ' (+https://mxchat.ai/bot)';
56 - return apply_filters('mxchat_ingest_user_agent', $ua);
57 - }
58 -}
59 -
60 22 function mxchat_load_textdomain() {
61 - $domain = 'mxchat';
62 - $locale = determine_locale();
63 -
64 - // First, try to load from /wp-content/languages/plugins/ (preserved during updates)
65 - $mo_file = WP_LANG_DIR . '/plugins/' . $domain . '-' . $locale . '.mo';
66 - if (file_exists($mo_file)) {
67 - load_textdomain($domain, $mo_file);
68 - return;
69 - }
70 -
71 - // Fallback to plugin's /languages directory
72 - load_plugin_textdomain($domain, false, dirname(plugin_basename(__FILE__)) . '/languages');
23 + load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages');
73 24 }
74 -add_action('init', 'mxchat_load_textdomain');
25 +add_action('plugins_loaded', 'mxchat_load_textdomain');
75 26
76 -/**
77 - * One-time migration: gemini-3-pro-preview was shut down by Google on March 9, 2026.
78 - * Existing installs with the dead ID get auto-remapped to gemini-3.1-pro-preview
79 - * (Google's official migration target) the first time admin_init fires after update.
80 - */
81 -add_action('admin_init', function () {
82 - if (get_option('mxchat_gemini_3_remap_done')) {
83 - return;
84 - }
85 - $opts = get_option('mxchat_options');
86 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'gemini-3-pro-preview') {
87 - $opts['model'] = 'gemini-3.1-pro-preview';
88 - update_option('mxchat_options', $opts);
89 - }
90 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'gemini-3-pro-preview') {
91 - $opts['content_model'] = 'gemini-3.1-pro-preview';
92 - update_option('mxchat_options', $opts);
93 - }
94 - update_option('mxchat_gemini_3_remap_done', 1);
95 -});
96 -
97 -/**
98 - * One-time migration: the Grok 2 family was retired by xAI (grok-2, grok-2-1212,
99 - * grok-2-latest, grok-2-vision-1212 all return 400 "Model not found"). Existing
100 - * installs with the dead ID get auto-remapped to grok-4-1-fast-non-reasoning
101 - * (modern, fast, broadly available) the first time admin_init fires after update.
102 - */
103 -add_action('admin_init', function () {
104 - if (get_option('mxchat_grok_2_remap_done')) {
105 - return;
106 - }
107 - $opts = get_option('mxchat_options');
108 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'grok-2') {
109 - $opts['model'] = 'grok-4-1-fast-non-reasoning';
110 - update_option('mxchat_options', $opts);
111 - }
112 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'grok-2') {
113 - $opts['content_model'] = 'grok-4-1-fast-non-reasoning';
114 - update_option('mxchat_options', $opts);
115 - }
116 - update_option('mxchat_grok_2_remap_done', 1);
117 -});
118 -
119 -/**
120 - * One-time migration: Anthropic retired the Claude 4 (2025-05-14) snapshots on
121 - * June 15, 2026 — claude-opus-4-20250514 and claude-sonnet-4-20250514 now return
122 - * an API error. Existing installs with a dead ID get auto-remapped to the current
123 - * equivalents Anthropic recommends (Opus 4.8 / Sonnet 4.6) the first time admin_init
124 - * fires after update. Mirrors the gemini-3-pro-preview / grok-2 rescues above.
125 - */
126 -add_action('admin_init', function () {
127 - if (get_option('mxchat_claude_4_retire_remap_done')) {
128 - return;
129 - }
130 - $map = array(
131 - 'claude-opus-4-20250514' => 'claude-opus-4-8',
132 - 'claude-sonnet-4-20250514' => 'claude-sonnet-4-6',
133 - );
134 - $opts = get_option('mxchat_options');
135 - if (is_array($opts)) {
136 - $changed = false;
137 - if (isset($opts['model']) && isset($map[$opts['model']])) {
138 - $opts['model'] = $map[$opts['model']];
139 - $changed = true;
140 - }
141 - if (isset($opts['content_model']) && isset($map[$opts['content_model']])) {
142 - $opts['content_model'] = $map[$opts['content_model']];
143 - $changed = true;
144 - }
145 - if ($changed) {
146 - update_option('mxchat_options', $opts);
147 - }
148 - }
149 - update_option('mxchat_claude_4_retire_remap_done', 1);
150 -});
151 -
152 -/**
153 - * Exclude MxChat assets from caching plugin optimizations
154 - *
155 - * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache,
156 - * W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by
157 - * removing "unused" CSS, minifying/combining JS, or deferring/delaying jQuery.
158 - *
159 - * Both chat-script.js and floating-script.js depend on jQuery, so jQuery must also
160 - * be excluded from any optimization that changes load order or timing.
161 - */
162 -
163 -// ── WP Rocket ────────────────────────────────────────────────────────────────
164 -
165 -// Exclude from Remove Unused CSS (RUCSS)
166 -add_filter('rocket_rucss_inline_atts_exclusions', function($exclusions) {
167 - if (!is_array($exclusions)) $exclusions = array();
168 - $exclusions[] = 'mxchat';
169 - return $exclusions;
170 -});
171 -
172 -// Exclude CSS from minification/combination
173 -add_filter('rocket_exclude_css', function($excluded) {
174 - if (!is_array($excluded)) $excluded = array();
175 - $excluded[] = '/plugins/mxchat-basic/css/chat-style.css';
176 - return $excluded;
177 -});
178 -
179 -// Exclude JS from minification/combination
180 -add_filter('rocket_exclude_js', function($excluded) {
181 - if (!is_array($excluded)) $excluded = array();
182 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
183 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
184 - $excluded[] = '/jquery-core';
185 - $excluded[] = '/jquery.min.js';
186 - $excluded[] = '/jquery.js';
187 - $excluded[] = '/jquery-migrate';
188 - return $excluded;
189 -});
190 -
191 -// Exclude JS from defer
192 -add_filter('rocket_exclude_defer_js', function($excluded) {
193 - if (!is_array($excluded)) $excluded = array();
194 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
195 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
196 - $excluded[] = '/jquery-core';
197 - $excluded[] = '/jquery.min.js';
198 - $excluded[] = '/jquery.js';
199 - $excluded[] = '/jquery-migrate';
200 - return $excluded;
201 -});
202 -
203 -// Exclude from delay JS execution
204 -add_filter('rocket_delay_js_exclusions', function($excluded) {
205 - if (!is_array($excluded)) $excluded = array();
206 - $excluded[] = 'mxchat';
207 - $excluded[] = 'chat-script';
208 - $excluded[] = 'floating-script';
209 - $excluded[] = '/jquery-core';
210 - $excluded[] = '/jquery.min.js';
211 - $excluded[] = '/jquery.js';
212 - $excluded[] = '/jquery-migrate';
213 - return $excluded;
214 -});
215 -
216 -// ── LiteSpeed Cache ──────────────────────────────────────────────────────────
217 -
218 -// Exclude CSS from optimization
219 -add_filter('litespeed_optimize_css_excludes', function($excluded) {
220 - if (!is_array($excluded)) $excluded = array();
221 - $excluded[] = 'chat-style.css';
222 - $excluded[] = 'mxchat';
223 - return $excluded;
224 -});
225 -
226 -// Exclude from UCSS (Unique CSS) - prevents LiteSpeed from stripping "unused" MxChat CSS
227 -add_filter('litespeed_ucss_whitelist', function($whitelist) {
228 - if (!is_array($whitelist)) $whitelist = array();
229 - $whitelist[] = '.mxchat-chatbot-wrapper';
230 - $whitelist[] = '.floating-chatbot';
231 - $whitelist[] = '.floating-chatbot-button';
232 - $whitelist[] = '.chatbot-top-bar';
233 - $whitelist[] = '.mxchat-chatbot';
234 - $whitelist[] = '.chat-container';
235 - $whitelist[] = '.chat-box';
236 - $whitelist[] = '.bot-message';
237 - $whitelist[] = '.input-container';
238 - $whitelist[] = '.chat-input';
239 - $whitelist[] = '.send-button';
240 - $whitelist[] = '.pre-chat-message';
241 - $whitelist[] = '.mxchat-popular-questions';
242 - $whitelist[] = '.chat-toolbar';
243 - $whitelist[] = '.exit-chat';
244 - $whitelist[] = '.email-blocker';
245 - return $whitelist;
246 -});
247 -
248 -// Exclude CSS from CCSS (Critical CSS) generation
249 -add_filter('litespeed_optm_ccss_exc', function($excluded) {
250 - if (!is_array($excluded)) $excluded = array();
251 - $excluded[] = 'chat-style.css';
252 - $excluded[] = 'mxchat';
253 - return $excluded;
254 -});
255 -
256 -// Exclude JS from defer
257 -add_filter('litespeed_optm_js_defer_exc', function($excluded) {
258 - if (!is_array($excluded)) $excluded = array();
259 - $excluded[] = 'chat-script.js';
260 - $excluded[] = 'floating-script.js';
261 - $excluded[] = 'mxchat';
262 - $excluded[] = 'jquery.min.js';
263 - $excluded[] = 'jquery.js';
264 - return $excluded;
265 -});
266 -
267 -// Exclude JS from combining
268 -add_filter('litespeed_optm_js_exc', function($excluded) {
269 - if (!is_array($excluded)) $excluded = array();
270 - $excluded[] = 'chat-script.js';
271 - $excluded[] = 'floating-script.js';
272 - $excluded[] = 'mxchat';
273 - $excluded[] = 'jquery.min.js';
274 - $excluded[] = 'jquery.js';
275 - return $excluded;
276 -});
277 -
278 -// Exclude JS from delayed execution
279 -add_filter('litespeed_optm_js_delay_exc', function($excluded) {
280 - if (!is_array($excluded)) $excluded = array();
281 - $excluded[] = 'chat-script.js';
282 - $excluded[] = 'floating-script.js';
283 - $excluded[] = 'mxchat';
284 - return $excluded;
285 -});
286 -
287 -// Exclude from Guest Mode optimization
288 -add_filter('litespeed_guest_optm_exc', function($excluded) {
289 - if (!is_array($excluded)) $excluded = array();
290 - $excluded[] = 'mxchat';
291 - $excluded[] = 'chat-style';
292 - $excluded[] = 'chat-script';
293 - $excluded[] = 'floating-script';
294 - return $excluded;
295 -});
296 -
297 -// ── Autoptimize ──────────────────────────────────────────────────────────────
298 -
299 -// Exclude CSS from optimization (comma-separated strings)
300 -add_filter('autoptimize_filter_css_exclude', function($excluded) {
301 - if (!is_string($excluded)) $excluded = '';
302 - return $excluded . ', mxchat, chat-style.css';
303 -});
304 -
305 -// Exclude JS from optimization (comma-separated strings)
306 -add_filter('autoptimize_filter_js_exclude', function($excluded) {
307 - if (!is_string($excluded)) $excluded = '';
308 - return $excluded . ', mxchat, chat-script.js, floating-script.js, jquery.min.js, jquery.js';
309 -});
310 -
311 -// ── SG Optimizer (SiteGround) ────────────────────────────────────────────────
312 -
313 -add_filter('sgo_js_minify_exclude', function($excluded) {
314 - if (!is_array($excluded)) $excluded = array();
315 - $excluded[] = 'chat-script.js';
316 - $excluded[] = 'floating-script.js';
317 - $excluded[] = 'jquery.min.js';
318 - return $excluded;
319 -});
320 -
321 -add_filter('sgo_javascript_combine_exclude', function($excluded) {
322 - if (!is_array($excluded)) $excluded = array();
323 - $excluded[] = 'chat-script.js';
324 - $excluded[] = 'floating-script.js';
325 - $excluded[] = 'jquery.min.js';
326 - return $excluded;
327 -});
328 -
329 -add_filter('sgo_js_async_exclude', function($excluded) {
330 - if (!is_array($excluded)) $excluded = array();
331 - $excluded[] = 'chat-script.js';
332 - $excluded[] = 'floating-script.js';
333 - $excluded[] = 'jquery.min.js';
334 - return $excluded;
335 -});
336 -
337 -// ── W3 Total Cache ───────────────────────────────────────────────────────────
338 -
339 -add_filter('w3tc_minify_js_do_tag_minification', function($do_minify, $script_tag, $file) {
340 - if (strpos($file, 'chat-script.js') !== false ||
341 - strpos($file, 'floating-script.js') !== false ||
342 - strpos($file, 'jquery.min.js') !== false ||
343 - strpos($file, 'jquery.js') !== false) {
344 - return false;
345 - }
346 - return $do_minify;
347 -}, 10, 3);
348 -
349 -// ── WP Super Cache ──────────────────────────────────────────────────────────
350 -
351 -add_filter('wpsc_rejected_uri', function($rejected) {
352 - if (!is_array($rejected)) $rejected = array();
353 - $rejected[] = 'wp-admin/admin-ajax.php';
354 - return $rejected;
355 -});
356 -
357 -// ── Page-cache bypass for chat AJAX (companion to the 3.2.6 nonce-race hotfix)
358 -// Each cache plugin gets its own filter export so that visitors hitting an
359 -// edge-cached page never receive cached chat-AJAX responses. The chat send /
360 -// stream send / file upload all POST to /wp-admin/admin-ajax.php with
361 -// `action=mxchat_*`. Without these exports, a cache plugin can stale a response
362 -// and break the per-session nonce flow on the first message.
363 -
364 -// WP Rocket — `rocket_cache_reject_uri` takes a flat array of regex strings.
365 -add_filter('rocket_cache_reject_uri', function($uris) {
366 - if (!is_array($uris)) $uris = array();
367 - $uris[] = '/wp-admin/admin-ajax\.php\?action=mxchat_.*';
368 - return $uris;
369 -});
370 -
371 -// LiteSpeed Cache — `litespeed_cache_no_cache_for_request` short-circuits
372 -// caching when the request matches our chat-AJAX pattern.
373 -add_filter('litespeed_cache_no_cache_for_request', function($no_cache) {
374 - if ($no_cache) return $no_cache;
375 - if (!empty($_SERVER['REQUEST_URI']) &&
376 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
377 - !empty($_REQUEST['action']) &&
378 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
379 - return true;
380 - }
381 - return $no_cache;
382 -});
383 -
384 -// W3 Total Cache — `w3tc_pgcache_request_skip_uri` flips page-cache off when
385 -// the URI matches.
386 -add_filter('w3tc_pgcache_request_skip_uri', function($skip) {
387 - if ($skip) return $skip;
388 - if (!empty($_SERVER['REQUEST_URI']) &&
389 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
390 - !empty($_REQUEST['action']) &&
391 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
392 - return true;
393 - }
394 - return $skip;
395 -});
396 -
397 -// FlyingPress — `flying_press_cacheable` takes a boolean and is run per
398 -// request. Same pattern as LiteSpeed / W3TC.
399 -add_filter('flying_press_cacheable', function($cacheable) {
400 - if (!$cacheable) return $cacheable;
401 - if (!empty($_SERVER['REQUEST_URI']) &&
402 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
403 - !empty($_REQUEST['action']) &&
404 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
405 - return false;
406 - }
407 - return $cacheable;
408 -});
409 -
410 27 // Include classes with error handling
411 28 function mxchat_include_classes() {
412 29 $class_files = array(
413 - 'includes/class-mxchat-model-catalog.php',
414 - 'includes/class-mxchat-live-agent-schedule.php',
415 - 'includes/class-mxchat-tool-registry.php',
416 30 'includes/class-mxchat-integrator.php',
417 31 'includes/class-mxchat-admin.php',
418 32 'includes/class-mxchat-public.php',
419 33 'includes/class-mxchat-utils.php',
@@ -418,14 +32,10 @@
418 32 'includes/class-mxchat-public.php',
419 33 'includes/class-mxchat-utils.php',
420 34 'includes/class-mxchat-user.php',
421 35 'includes/class-mxchat-meta-box.php',
422 - 'includes/class-mxchat-chunker.php',
36 + 'includes/pdf-parser/alt_autoload.php',
423 37 'includes/class-mxchat-word-handler.php',
424 - 'includes/class-mxchat-content-generator.php',
425 - 'includes/class-mxchat-cache-purge.php',
426 - 'includes/class-mxchat-editor-assistant.php',
427 - 'includes/class-rest-api.php',
428 38 'admin/class-ajax-handler.php',
429 39 'admin/class-pinecone-manager.php',
430 40 'admin/class-knowledge-manager.php'
431 41 );
@@ -437,57 +47,11 @@
437 47 } else {
438 48 //error_log('MxChat: Missing class file - ' . $file);
439 49 }
440 50 }
441 -
442 - // Register the native function-calling admin-post save handler (a41dee).
443 - if (class_exists('MxChat_Tool_Registry')) {
444 - MxChat_Tool_Registry::init();
445 - }
446 -
447 - // Editor Assistant — free, OFF-by-default block-editor AI actions (plan-8cb0cb).
448 - // init() wires REST + streaming AJAX + sidebar enqueue ONLY when the
449 - // mxchat_editor_assistant_enabled option is 'on'; otherwise zero footprint.
450 - if (class_exists('MxChat_Editor_Assistant')) {
451 - MxChat_Editor_Assistant::init();
452 - }
453 -
454 - // Admin pages that aren't classes (procedural include).
455 - if (is_admin()) {
456 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
457 - if (file_exists($admin_api_page)) {
458 - require_once $admin_api_page;
459 - }
460 - // f7c7d4 renamed this file admin-dashboard-page.php → admin-onboarding-page.php.
461 - // The require MUST live here (admin bootstrap) and not just inside
462 - // mxchat_add_plugin_page() on the admin_menu hook — admin_menu does NOT
463 - // fire on admin-ajax.php requests, so the wizard's AJAX handlers
464 - // (plan-905439: mxchat_onboarding_kb_status / save_step / mark_step /
465 - // auto_graduate + the f7c7d4 dismiss handler) would never register.
466 - $admin_onboarding_page = plugin_dir_path(__FILE__) . 'includes/admin-onboarding-page.php';
467 - if (file_exists($admin_onboarding_page)) {
468 - require_once $admin_onboarding_page;
469 - }
470 - }
471 51 }
472 52
473 53 /**
474 - * Lazy-load the PDF parser library only when needed.
475 - * Avoids loading 44 files on every page request.
476 - */
477 -function mxchat_load_pdf_parser() {
478 - if (class_exists('\Smalot\PdfParser\Parser')) {
479 - return true;
480 - }
481 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
482 - if (file_exists($autoload_path)) {
483 - require_once $autoload_path;
484 - return true;
485 - }
486 - return false;
487 -}
488 -
489 -/**
490 54 * Create URL click tracking table
491 55 */
492 56 function mxchat_create_url_clicks_table() {
493 57 global $wpdb;
@@ -570,13 +134,12 @@
570 134
571 135 // Define all required columns and their types
572 136 $required_columns = [
573 137 'user_identifier' => 'VARCHAR(255) DEFAULT NULL',
574 - 'user_email' => 'VARCHAR(255) DEFAULT NULL',
138 + 'user_email' => 'VARCHAR(255) DEFAULT NULL',
575 139 'user_name' => 'VARCHAR(100) DEFAULT NULL',
576 140 'originating_page_url' => 'TEXT DEFAULT NULL',
577 - 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL',
578 - 'rag_context' => 'LONGTEXT DEFAULT NULL'
141 + 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL'
579 142 ];
580 143
581 144 // Get existing columns
582 145 $existing_columns = $wpdb->get_results("SHOW COLUMNS FROM $table_name");
@@ -647,9 +210,9 @@
647 210 }
648 211 }
649 212
650 213 /**
651 - * Add enabled_bots column to intents table for multi-bot action filtering
214 + * NEW: Add enabled_bots column to intents table for multi-bot action filtering
652 215 */
653 216 function mxchat_add_enabled_bots_column() {
654 217 global $wpdb;
655 218 $table_name = $wpdb->prefix . 'mxchat_intents';
@@ -696,367 +259,31 @@
696 259 }
697 260 }
698 261
699 262 /**
700 - * Create Pinecone role restrictions table with multi-bot support
263 + * Create Pinecone role restrictions table
701 264 */
702 265 function mxchat_create_pinecone_roles_table() {
703 266 global $wpdb;
704 -
267 +
705 268 $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
706 269 $charset_collate = $wpdb->get_charset_collate();
707 -
270 +
708 271 $sql = "CREATE TABLE $table_name (
709 272 id mediumint(9) NOT NULL AUTO_INCREMENT,
710 273 vector_id varchar(255) NOT NULL,
711 - bot_id varchar(50) NOT NULL DEFAULT 'default',
712 274 source_url text,
713 275 role_restriction varchar(50) DEFAULT 'public',
714 276 updated_at timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
715 277 PRIMARY KEY (id),
716 - UNIQUE KEY vector_bot (vector_id, bot_id),
717 - KEY role_restriction (role_restriction),
718 - KEY bot_id (bot_id)
278 + UNIQUE KEY vector_id (vector_id),
279 + KEY role_restriction (role_restriction)
719 280 ) $charset_collate;";
720 -
721 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
722 - dbDelta($sql);
723 -}
724 -
725 -/**
726 - * Add bot_id column to mxchat_pinecone_roles table for multi-bot support
727 - * This migration runs once to update existing installations
728 - */
729 -function mxchat_migrate_pinecone_roles_add_bot_id() {
730 - global $wpdb;
731 -
732 - // Check if migration already ran
733 - $migration_version = get_option('mxchat_pinecone_roles_migration_version', '0');
734 - if (version_compare($migration_version, '2.5.2', '>=')) {
735 - return; // Already migrated
736 - }
737 -
738 - $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
739 -
740 - // Check if table exists
741 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
742 - return; // Table doesn't exist yet
743 - }
744 -
745 - // Check if bot_id column already exists
746 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'bot_id'");
747 -
748 - if (empty($column_exists)) {
749 - // Add bot_id column
750 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN bot_id VARCHAR(50) NOT NULL DEFAULT 'default' AFTER vector_id");
751 -
752 - // Update the unique key to include bot_id
753 - $wpdb->query("ALTER TABLE {$table_name} DROP INDEX vector_id");
754 - $wpdb->query("ALTER TABLE {$table_name} ADD UNIQUE KEY vector_bot (vector_id, bot_id)");
755 -
756 - // Add index for bot_id
757 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
758 -
759 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
760 - }
761 -
762 - // Mark migration as complete
763 - update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
764 -}
765 -
766 -/**
767 - * 2.5.6: Add content_type column to mxchat_system_prompt_content table
768 - * Enables filtering knowledge base by content type (posts, pages, PDFs, etc.)
769 - */
770 -function mxchat_migrate_add_content_type_column() {
771 - global $wpdb;
772 -
773 - // Check if migration already ran
774 - $migration_version = get_option('mxchat_content_type_migration_version', '0');
775 - if (version_compare($migration_version, '2.5.6', '>=')) {
776 - return;
777 - }
778 -
779 - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
780 -
781 - // Check if table exists
782 - if ($wpdb->get_var("SHOW TABLES LIKE '{$table_name}'") != $table_name) {
783 - return;
784 - }
785 -
786 - // Check if content_type column already exists
787 - $column_exists = $wpdb->get_results("SHOW COLUMNS FROM {$table_name} LIKE 'content_type'");
788 -
789 - if (empty($column_exists)) {
790 - // Add content_type column with default value 'content' for backwards compatibility
791 - $wpdb->query("ALTER TABLE {$table_name} ADD COLUMN content_type VARCHAR(50) DEFAULT 'content' AFTER role_restriction");
792 -
793 - // Add index for better query performance
794 - $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
795 -
796 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
797 - }
798 -
799 - // Mark migration as complete
800 - update_option('mxchat_content_type_migration_version', '2.5.6');
801 -}
802 -
803 -/**
804 - * 3.2.4: Backfill the active embedding model option for installs that already
805 - * have KB content but no stamped model. The mismatch warning compares this
806 - * against the user's currently selected model — no per-row column needed.
807 - */
808 -function mxchat_backfill_active_embedding_model() {
809 - global $wpdb;
810 -
811 - if (get_option('mxchat_active_embedding_model', '') !== '') {
812 - return;
813 - }
814 -
815 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
816 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
817 - return;
818 - }
819 -
820 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
821 - if ($kb_count > 0) {
822 - $options = get_option('mxchat_options', array());
823 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
824 - update_option('mxchat_active_embedding_model', $current_model, false);
825 - }
826 -}
827 -
828 -/**
829 - * 2.5.2: Create queue processing tables for reliable background processing
830 - */
831 -function mxchat_create_queue_tables() {
832 - global $wpdb;
833 - $charset_collate = $wpdb->get_charset_collate();
834 281
835 - // Main queue table
836 - $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
837 - $sql_queue = "CREATE TABLE $queue_table (
838 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
839 - queue_id varchar(64) NOT NULL,
840 - item_type varchar(20) NOT NULL,
841 - item_data longtext NOT NULL,
842 - status varchar(20) NOT NULL DEFAULT 'pending',
843 - bot_id varchar(50) NOT NULL DEFAULT 'default',
844 - priority int(11) NOT NULL DEFAULT 0,
845 - attempts int(11) NOT NULL DEFAULT 0,
846 - max_attempts int(11) NOT NULL DEFAULT 3,
847 - error_message text DEFAULT NULL,
848 - created_at datetime NOT NULL,
849 - started_at datetime DEFAULT NULL,
850 - completed_at datetime DEFAULT NULL,
851 - PRIMARY KEY (id),
852 - KEY queue_id (queue_id),
853 - KEY status (status),
854 - KEY item_type (item_type),
855 - KEY priority (priority)
856 - ) $charset_collate;";
857 -
858 - // Queue metadata table
859 - $meta_table = $wpdb->prefix . 'mxchat_queue_meta';
860 - $sql_meta = "CREATE TABLE $meta_table (
861 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
862 - queue_id varchar(64) NOT NULL,
863 - meta_key varchar(255) NOT NULL,
864 - meta_value longtext,
865 - PRIMARY KEY (id),
866 - KEY queue_id (queue_id),
867 - KEY meta_key (meta_key)
868 - ) $charset_collate;";
869 -
870 282 require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
871 - dbDelta($sql_queue);
872 - dbDelta($sql_meta);
873 -
874 - //error_log("MxChat: Queue tables created/updated successfully");
875 -}
876 -
877 -/**
878 - * Create transcript translations table for persisting translations
879 - */
880 -function mxchat_create_translations_table() {
881 - global $wpdb;
882 - $charset_collate = $wpdb->get_charset_collate();
883 -
884 - $table_name = $wpdb->prefix . 'mxchat_transcript_translations';
885 - $sql = "CREATE TABLE $table_name (
886 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
887 - session_id varchar(255) NOT NULL,
888 - language_code varchar(10) NOT NULL,
889 - translations longtext NOT NULL,
890 - created_at datetime NOT NULL,
891 - updated_at datetime NOT NULL,
892 - PRIMARY KEY (id),
893 - UNIQUE KEY session_lang (session_id, language_code),
894 - KEY session_id (session_id)
895 - ) $charset_collate;";
896 -
897 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
898 283 dbDelta($sql);
899 284 }
900 285
901 -/**
902 - * Create per-session satisfaction ratings table (v3.2.6)
903 - * Stores one 👍/👎 rating + optional feedback per chat session.
904 - */
905 -function mxchat_create_session_ratings_table() {
906 - global $wpdb;
907 - $charset_collate = $wpdb->get_charset_collate();
908 -
909 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
910 - $sql = "CREATE TABLE $table_name (
911 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
912 - session_id varchar(255) NOT NULL,
913 - bot_id varchar(50) NOT NULL DEFAULT 'default',
914 - rating_value tinyint(1) NOT NULL,
915 - rating_feedback text DEFAULT NULL,
916 - created_at datetime NOT NULL,
917 - PRIMARY KEY (id),
918 - UNIQUE KEY session_id (session_id),
919 - KEY bot_id (bot_id),
920 - KEY created_at (created_at)
921 - ) $charset_collate;";
922 -
923 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
924 - dbDelta($sql);
925 -}
926 -
927 -/**
928 - * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
929 - * This fixes "url, source_url. The supplied values may be too long" errors
930 - */
931 -function mxchat_fix_url_column_size() {
932 - global $wpdb;
933 - $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
934 -
935 - // Check if table exists
936 - $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
937 - if (!$table_exists) {
938 - return;
939 - }
940 -
941 - // Change url and source_url from VARCHAR to TEXT to handle long URLs
942 - // This is especially important for URLs with UTF-8 encoded characters (Hebrew, Arabic, etc.)
943 - $wpdb->query("ALTER TABLE {$table_name} MODIFY COLUMN url TEXT");
944 - $wpdb->query("ALTER TABLE {$table_name} MODIFY COLUMN source_url TEXT");
945 -
946 - //error_log("MxChat: Successfully updated url and source_url columns to TEXT type for long URL support");
947 -}
948 -
949 -/**
950 - * Migrate deprecated AI models to their replacements
951 - * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
952 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
953 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
954 - */
955 -function mxchat_migrate_transcripts_charset() {
956 - global $wpdb;
957 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
958 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
959 -}
960 -
961 -/**
962 - * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
963 - */
964 -function mxchat_migrate_deprecated_models() {
965 - $options = get_option('mxchat_options', array());
966 - $migrated = false;
967 - $migration_message = '';
968 -
969 - if (!isset($options['model'])) {
970 - return;
971 - }
972 -
973 - $current_model = $options['model'];
974 -
975 - // Migrate deprecated Claude models to Claude Opus 4.6 (recommended replacement per Anthropic)
976 - $deprecated_claude_models = array(
977 - 'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025
978 - 'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025
979 - 'claude-3-7-sonnet-20250219', // Retiring Feb 19, 2026
980 - 'claude-3-opus-20240229', // Retired Jan 5, 2026
981 - 'claude-3-sonnet-20240229', // Legacy
982 - 'claude-3-haiku-20240307', // Legacy
983 - );
984 - if (in_array($current_model, $deprecated_claude_models, true)) {
985 - $options['model'] = 'claude-opus-4-6';
986 - $migrated = true;
987 - $migration_message = sprintf(
988 - 'Your chatbot model has been automatically updated from %s to Claude Opus 4.6 due to Anthropic deprecating older Claude models.',
989 - $current_model
990 - );
991 - }
992 -
993 - // Migrate deprecated Claude Haiku 3.5 to Claude Haiku 4.5
994 - if ($current_model === 'claude-3-5-haiku-20241022') {
995 - $options['model'] = 'claude-haiku-4-5-20251001';
996 - $migrated = true;
997 - $migration_message = 'Your chatbot model has been automatically updated from Claude Haiku 3.5 to Claude Haiku 4.5 due to Anthropic deprecating the older model.';
998 - }
999 -
1000 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.1 Chat Latest
1001 - if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
1002 - $options['model'] = 'gpt-5.1-chat-latest';
1003 - $migrated = true;
1004 - $migration_message = sprintf(
1005 - 'Your chatbot model has been automatically updated from %s to GPT-5.1 Chat Latest due to OpenAI deprecating older models.',
1006 - $current_model
1007 - );
1008 - }
1009 -
1010 - // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
1011 - if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
1012 - $options['model'] = 'gpt-5-mini';
1013 - $migrated = true;
1014 - $migration_message = sprintf(
1015 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
1016 - $current_model
1017 - );
1018 - }
1019 -
1020 - // Migrate retired DeepSeek ids to DeepSeek V4 Flash — the vendor removed
1021 - // deepseek-chat and deepseek-reasoner on 2026-07-24 (hard cutoff, every
1022 - // request 400s). V4 Flash is DeepSeek's designated successor for the
1023 - // legacy deepseek-chat alias.
1024 - if (in_array($current_model, array('deepseek-chat', 'deepseek-reasoner'), true)) {
1025 - $options['model'] = 'deepseek-v4-flash';
1026 - $migrated = true;
1027 - $migration_message = sprintf(
1028 - 'Your chatbot model has been automatically updated from %s to DeepSeek V4 Flash because DeepSeek retired its older API models on July 24, 2026.',
1029 - $current_model
1030 - );
1031 - }
1032 -
1033 - if ($migrated) {
1034 - update_option('mxchat_options', $options);
1035 - update_option('mxchat_model_migrated_notice', true);
1036 - update_option('mxchat_model_migration_message', $migration_message);
1037 - }
1038 -}
1039 -
1040 -/**
1041 - * Show admin notice after model migration
1042 - */
1043 -function mxchat_show_migration_notice() {
1044 - if (get_option('mxchat_model_migrated_notice')) {
1045 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
1046 - ?>
1047 - <div class="notice notice-info is-dismissible">
1048 - <p>
1049 - <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
1050 - <?php echo esc_html($migration_message); ?>
1051 - </p>
1052 - </div>
1053 - <?php
1054 - delete_option('mxchat_model_migrated_notice');
1055 - delete_option('mxchat_model_migration_message');
1056 - }
1057 -}
1058 -
1059 286 function mxchat_activate() {
1060 287 global $wpdb;
1061 288 $charset_collate = $wpdb->get_charset_collate();
1062 289
@@ -1064,21 +291,19 @@
1064 291
1065 292 // Create chat transcripts table with improved function
1066 293 mxchat_create_chat_transcripts_table();
1067 294
1068 - // System Prompt Content Table - UPDATED: Use TEXT for url and source_url columns
295 + // System Prompt Content Table
1069 296 $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
1070 297 $sql_system_prompt = "CREATE TABLE $system_prompt_table (
1071 298 id MEDIUMINT(9) NOT NULL AUTO_INCREMENT,
1072 - url TEXT NOT NULL,
299 + url VARCHAR(255) NOT NULL,
1073 300 article_content LONGTEXT NOT NULL,
1074 301 embedding_vector LONGTEXT,
1075 - source_url TEXT DEFAULT NULL,
302 + source_url VARCHAR(255) DEFAULT NULL,
1076 303 role_restriction VARCHAR(50) DEFAULT 'public',
1077 - content_type VARCHAR(50) DEFAULT 'content',
1078 304 timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1079 - PRIMARY KEY (id),
1080 - KEY content_type (content_type)
305 + PRIMARY KEY (id)
1081 306 ) $charset_collate;";
1082 307
1083 308 // Intents Table - NOW INCLUDES enabled_bots column from the start
1084 309 $intents_table = $wpdb->prefix . 'mxchat_intents';
@@ -1093,42 +318,20 @@
1093 318 enabled_bots LONGTEXT DEFAULT NULL,
1094 319 PRIMARY KEY (id)
1095 320 ) $charset_collate;";
1096 321
1097 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
1098 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
1099 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
1100 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1101 - intent_id BIGINT(20) UNSIGNED NOT NULL,
1102 - phrase TEXT NOT NULL,
1103 - embedding_vector LONGTEXT NOT NULL,
1104 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1105 - PRIMARY KEY (id),
1106 - KEY intent_id (intent_id)
1107 - ) $charset_collate;";
1108 -
1109 322 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1110 323
1111 324 // Create other tables
1112 325 dbDelta($sql_system_prompt);
1113 326 dbDelta($sql_intents_table);
1114 - dbDelta($sql_intent_phrases_table);
1115 327
1116 328 // Create URL click tracking table
1117 329 mxchat_create_url_clicks_table();
1118 330
1119 - // Create Pinecone roles table
331 + //Create Pinecone roles table
1120 332 mxchat_create_pinecone_roles_table();
1121 -
1122 - // NEW 2.5.2: Create queue processing tables
1123 - mxchat_create_queue_tables();
1124 333
1125 - // Create transcript translations table
1126 - mxchat_create_translations_table();
1127 -
1128 - // Create per-session satisfaction ratings table (v3.2.6)
1129 - mxchat_create_session_ratings_table();
1130 -
1131 334 // Ensure additional columns in system prompt table
1132 335 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1133 336 if (!empty($existing_system_columns)) {
1134 337 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1136,9 +339,9 @@
1136 339 if (!in_array('embedding_vector', $existing_system_column_names)) {
1137 340 $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN embedding_vector LONGTEXT");
1138 341 }
1139 342 if (!in_array('source_url', $existing_system_column_names)) {
1140 - $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN source_url TEXT DEFAULT NULL");
343 + $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN source_url VARCHAR(255) DEFAULT NULL");
1141 344 }
1142 345 if (!in_array('role_restriction', $existing_system_column_names)) {
1143 346 $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN role_restriction VARCHAR(50) DEFAULT 'public' AFTER source_url");
1144 347 }
@@ -1155,9 +358,9 @@
1155 358 if (!in_array('enabled', $existing_intent_column_names)) {
1156 359 $wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled TINYINT(1) NOT NULL DEFAULT 1");
1157 360 }
1158 361
1159 - // Ensure enabled_bots column exists for existing installations
362 + // NEW: Ensure enabled_bots column exists for existing installations
1160 363 if (!in_array('enabled_bots', $existing_intent_column_names)) {
1161 364 $wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled_bots LONGTEXT DEFAULT NULL AFTER enabled");
1162 365
1163 366 // Set existing actions to work with default bot
@@ -1168,21 +371,14 @@
1168 371 ));
1169 372 }
1170 373 }
1171 374
1172 - // Run migration for existing installations
1173 - mxchat_migrate_pinecone_roles_add_bot_id();
1174 -
1175 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1176 - mxchat_backfill_active_embedding_model();
1177 -
1178 375 // Setup cron jobs
1179 376 mxchat_setup_cron_jobs();
1180 377
1181 - // Update version (stable base version — never the dev time()-suffixed one,
1182 - // or the check_for_update comparison would churn every request)
1183 - update_option('mxchat_plugin_version', MXCHAT_BASE_VERSION);
1184 -
378 + // Update version
379 + update_option('mxchat_plugin_version', MXCHAT_VERSION);
380 +
1185 381 //error_log("MxChat: Activation function completed");
1186 382 }
1187 383
1188 384 /**
@@ -1196,42 +392,22 @@
1196 392 if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
1197 393 // Set flag to use fallback system
1198 394 update_option('mxchat_use_fallback_rate_limits', true);
1199 395 update_option('mxchat_next_rate_limit_check', time() + 3600);
1200 - // Deliberately NO early return (plan-bc08a6): transcript cleanup below
1201 - // must still be scheduled. DISABLE_WP_CRON only changes HOW cron events
1202 - // execute (a server-side runner hitting wp-cron.php instead of loopback
1203 - // spawns) — scheduling still just writes the cron option. The old early
1204 - // return here meant a deactivate/reactivate cycle on a DISABLE_WP_CRON
1205 - // site permanently lost the transcript cleanup event while the retention
1206 - // setting still claimed to be active.
396 + return;
397 + }
398 +
399 + // Schedule the rate limit reset cron job
400 + $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
401 +
402 + if ($result === false) {
403 + // Fallback if scheduling fails
404 + update_option('mxchat_use_fallback_rate_limits', true);
405 + update_option('mxchat_next_rate_limit_check', time() + 3600);
1207 406 } else {
1208 - // Schedule the rate limit reset cron job
1209 - $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
1210 -
1211 - if ($result === false) {
1212 - // Fallback if scheduling fails
1213 - update_option('mxchat_use_fallback_rate_limits', true);
1214 - update_option('mxchat_next_rate_limit_check', time() + 3600);
1215 - } else {
1216 - // Clear fallback flags if cron scheduling succeeded
1217 - delete_option('mxchat_use_fallback_rate_limits');
1218 - }
407 + // Clear fallback flags if cron scheduling succeeded
408 + delete_option('mxchat_use_fallback_rate_limits');
1219 409 }
1220 -
1221 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
1222 - $transcript_options = get_option('mxchat_transcripts_options', array());
1223 - $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1224 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1225 -
1226 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
1227 - // Check if not already scheduled
1228 - if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1229 - // Schedule to run daily at 3 AM
1230 - $next_run = strtotime('tomorrow 3:00 AM');
1231 - wp_schedule_event($next_run, 'daily', 'mxchat_cleanup_old_transcripts');
1232 - }
1233 - }
1234 410 }
1235 411
1236 412 /**
1237 413 * Clean up on plugin deactivation
@@ -1238,18 +414,13 @@
1238 414 */
1239 415 function mxchat_deactivate() {
1240 416 // Clear scheduled cron jobs
1241 417 wp_clear_scheduled_hook('mxchat_reset_rate_limits');
1242 - wp_clear_scheduled_hook('mxchat_cleanup_old_transcripts');
1243 - wp_clear_scheduled_hook('mxchat_send_delayed_transcript');
1244 418
1245 419 // Clear fallback options
1246 420 delete_option('mxchat_use_fallback_rate_limits');
1247 421 delete_option('mxchat_next_rate_limit_check');
1248 422 delete_option('mxchat_fallback_check_interval');
1249 -
1250 - // NOTE: We do NOT delete queue tables on deactivation
1251 - // This preserves data if user accidentally deactivates the plugin
1252 423 }
1253 424
1254 425 /**
1255 426 * Check if fallback rate limit cleanup is needed
@@ -1261,127 +432,49 @@
1261 432 return;
1262 433 }
1263 434
1264 435 $next_check = get_option('mxchat_next_rate_limit_check', 0);
1265 -
436 +
1266 437 if (time() >= $next_check) {
1267 - // Reuse the bootstrap's integrator — mxchat_init() creates the global on
1268 - // plugins_loaded (before this init-priority-5 callback), so it's always set
1269 - // here. Constructing a second MxChat_Integrator just to call one method
1270 - // re-registers every hook the plugin has (ajax pairs, wp_footer loader,
1271 - // rest_api_init, admin_init guard) on a duplicate instance for the rest of
1272 - // the request. Defensive construction only if the global is somehow unset.
1273 - // NOTE: MxChat_Integrator::check_fallback_rate_limits() is a second
1274 - // implementation of this same check — if either changes, change both.
1275 - global $mxchat_integrator;
1276 - $integrator = ($mxchat_integrator instanceof MxChat_Integrator)
1277 - ? $mxchat_integrator
1278 - : (class_exists('MxChat_Integrator') ? new MxChat_Integrator() : null);
1279 - if ($integrator && method_exists($integrator, 'mxchat_reset_rate_limits')) {
1280 - $integrator->mxchat_reset_rate_limits();
1281 - update_option('mxchat_next_rate_limit_check', time() + 3600);
438 + // Only run reset if the MxChat_Integrator class exists
439 + if (class_exists('MxChat_Integrator')) {
440 + $integrator = new MxChat_Integrator();
441 + if (method_exists($integrator, 'mxchat_reset_rate_limits')) {
442 + $integrator->mxchat_reset_rate_limits();
443 + update_option('mxchat_next_rate_limit_check', time() + 3600);
444 + }
1282 445 }
1283 446 }
1284 447 }
1285 448
1286 449 /**
1287 - * Robust update checking with role restriction migration, model deprecation, and queue tables
1288 - * CRITICAL: This runs on EVERY page load to ensure tables exist
450 + * Robust update checking with role restriction migration
1289 451 */
1290 452 function mxchat_check_for_update() {
1291 - global $wpdb;
453 + global $wpdb; // CRITICAL: Declare this at the top
1292 454
1293 455 try {
1294 456 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1295 - $plugin_version = MXCHAT_BASE_VERSION;
457 + $plugin_version = MXCHAT_VERSION;
1296 458
1297 - // Always ensure critical tables exist (even if version matches)
1298 - // This handles manual table deletion or fresh installs
1299 - $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1300 - $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
1301 -
1302 - $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$chat_table'") === $chat_table;
1303 - $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
1304 -
1305 - if (!$chat_exists || !$queue_exists) {
1306 - //error_log("MxChat: Critical tables missing, running activation");
1307 - mxchat_activate();
1308 - }
1309 -
1310 - // Version-specific migrations
459 + // Always run activation to ensure tables exist (safe for existing installations)
1311 460 if ($current_version !== $plugin_version) {
1312 461 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1313 -
462 +
1314 463 // Run live agent update BEFORE updating the stored version
1315 464 mxchat_handle_live_agent_update();
1316 -
1317 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1318 - mxchat_handle_theme_migration_notice();
1319 465
1320 - // Run role restriction migration for 2.4.1
466 + //Run role restriction migration for 2.4.1
1321 467 if (version_compare($current_version, '2.4.1', '<')) {
1322 468 mxchat_add_role_restriction_column();
1323 469 }
1324 470
1325 - // Run enabled_bots column migration for 2.4.4
471 + // NEW: Run enabled_bots column migration for 2.4.4
1326 472 if (version_compare($current_version, '2.4.4', '<')) {
1327 473 mxchat_add_enabled_bots_column();
1328 474 }
1329 475
1330 - // Run model migration for 2.5.1 (Claude deprecation)
1331 - if (version_compare($current_version, '2.5.1', '<')) {
1332 - mxchat_migrate_deprecated_models();
1333 - }
1334 -
1335 - // 2.5.2: Ensure queue tables exist and fix URL column sizes for all users upgrading to 2.5.2
1336 - if (version_compare($current_version, '2.5.2', '<')) {
1337 - mxchat_create_queue_tables();
1338 - mxchat_fix_url_column_size(); // NEW: Fix URL column size for long URLs
1339 - //error_log("MxChat: Queue tables created and URL columns updated for upgrade to 2.5.2");
1340 - }
1341 -
1342 - // 2.6.0: Ensure rag_context column exists for retrieved documents feature
1343 - if (version_compare($current_version, '2.6.0', '<')) {
1344 - $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1345 - mxchat_ensure_all_columns($chat_table);
1346 - //error_log("MxChat: rag_context column migration for 2.6.0");
1347 - }
1348 -
1349 - // 3.0.5: Migrate deprecated Gemini embedding model
1350 - if (version_compare($current_version, '3.0.5', '<')) {
1351 - mxchat_migrate_gemini_embedding_model();
1352 - }
1353 -
1354 - // 3.0.6: Migrate deprecated OpenAI and Claude models
1355 - if (version_compare($current_version, '3.0.6', '<')) {
1356 - mxchat_migrate_deprecated_models();
1357 - }
1358 -
1359 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1360 - if (version_compare($current_version, '3.1.2', '<')) {
1361 - mxchat_migrate_transcripts_charset();
1362 - }
1363 -
1364 - // 3.1.7: Clean up stale shared session email/name entries
1365 - if (version_compare($current_version, '3.1.7', '<')) {
1366 - delete_option('mxchat_email_null');
1367 - delete_option('mxchat_name_null');
1368 - }
1369 -
1370 - // 3.2.4: Backfill active embedding model option for the warning UI
1371 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1372 - if (version_compare($current_version, '3.2.4', '<')) {
1373 - mxchat_backfill_active_embedding_model();
1374 - }
1375 -
1376 - // 3.2.15: Migrate retired DeepSeek ids (deepseek-chat / deepseek-reasoner
1377 - // were shut off at the vendor on 2026-07-24). The function is idempotent —
1378 - // it only rewrites models on its deprecation lists.
1379 - if (version_compare($current_version, '3.2.15', '<')) {
1380 - mxchat_migrate_deprecated_models();
1381 - }
1382 -
1383 - // Run full activation to ensure everything is up to date
476 + // Run activation (this will create/update all tables and columns)
1384 477 mxchat_activate();
1385 478
1386 479 // Run migration functions
1387 480 mxchat_migrate_live_agent_status();
@@ -1396,8 +489,18 @@
1396 489
1397 490 //error_log("MxChat: Updated from version $current_version to $plugin_version");
1398 491 }
1399 492
493 + // CRITICAL: Always ensure tables exist, even if version matches
494 + // This handles cases where tables were manually deleted
495 + $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
496 + $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
497 +
498 + if (!$table_exists) {
499 + //error_log("MxChat: Chat transcripts table missing, recreating...");
500 + mxchat_activate(); // Run full activation instead of just table creation
501 + }
502 +
1400 503 } catch (Exception $e) {
1401 504 //error_log('MxChat update error: ' . $e->getMessage());
1402 505 // Don't update version if there was an error
1403 506 }
@@ -1403,10 +506,9 @@
1403 506 }
1404 507 }
1405 508
1406 509 /**
1407 - * Ensure tables exist on every admin load for fresh installations
1408 - * This is a safety net for cases where activation hook doesn't fire
510 + * Ensure tables exist on every load for fresh installations
1409 511 */
1410 512 function mxchat_ensure_tables_exist() {
1411 513 global $wpdb;
1412 514
@@ -1414,22 +516,12 @@
1414 516 if (!current_user_can('administrator')) {
1415 517 return;
1416 518 }
1417 519
1418 - // Check if we've already verified tables in this session
1419 - static $tables_checked = false;
1420 - if ($tables_checked) {
1421 - return;
1422 - }
1423 - $tables_checked = true;
1424 -
1425 520 $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
1426 - $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
521 + $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
1427 522
1428 - $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
1429 - $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
1430 -
1431 - if (!$chat_exists || !$queue_exists) {
523 + if (!$table_exists) {
1432 524 //error_log("MxChat: Tables missing on admin load, running activation");
1433 525 mxchat_activate();
1434 526 }
1435 527 }
@@ -1512,76 +604,45 @@
1512 604 function mxchat_handle_live_agent_update() {
1513 605 // Get the CURRENT stored version (before it gets updated)
1514 606 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1515 607 $new_version = '2.2.2';
1516 -
608 +
1517 609 // Only run this once for the update to 2.2.2
1518 610 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1519 -
611 +
1520 612 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1521 613 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1522 614 $options = get_option('mxchat_options', array());
1523 -
615 +
1524 616 // Check if live agent was previously enabled
1525 617 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1526 618 // Disable live agent
1527 619 $options['live_agent_status'] = 'off';
1528 620 update_option('mxchat_options', $options);
1529 -
621 +
1530 622 // Set flag to show the notification banner
1531 623 update_option('mxchat_show_live_agent_disabled_notice', true);
1532 624 }
1533 -
625 +
1534 626 // Mark this update as handled
1535 627 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1536 628 }
1537 629 }
1538 630
1539 -/**
1540 - * Handle theme migration notice for version 3.0.1
1541 - * Shows a dismissible notice to Pro users about migrating AI-generated themes
1542 - */
1543 -function mxchat_handle_theme_migration_notice() {
1544 - // Get the CURRENT stored version (before it gets updated)
1545 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1546 - $target_version = '3.0.1';
1547 -
1548 - // Only run this once for the update to 3.0.1
1549 - $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
1550 -
1551 - // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1552 - if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1553 - // Check if Pro is activated - only show to Pro users
1554 - $license_status = get_option('mxchat_license_status', 'inactive');
1555 - $is_pro = ($license_status === 'active');
1556 -
1557 - if ($is_pro) {
1558 - // Set flag to show the theme migration notification banner
1559 - update_option('mxchat_show_theme_migration_notice', true);
1560 - }
1561 -
1562 - // Mark this update as handled (whether Pro or not)
1563 - update_option('mxchat_theme_migration_update_3_0_1_handled', true);
1564 - }
1565 -}
1566 -
1567 631 // Initialize plugin safely
1568 632 function mxchat_init() {
1569 633 // Include all class files first
1570 634 mxchat_include_classes();
1571 635
1572 - // Run update check (this also ensures tables exist)
636 + // Run update check
1573 637 mxchat_check_for_update();
1574 638
1575 - // CRITICAL: Ensure tables exist on admin pages (safety net)
639 + // CRITICAL: Ensure tables exist (for fresh installations that don't trigger activation hook)
1576 640 add_action('admin_init', 'mxchat_ensure_tables_exist', 1);
1577 641
1578 642 // Add fallback rate limit check
1579 643 add_action('init', 'mxchat_check_fallback_rate_limits', 5);
1580 644
1581 - // Add migration notice hook
1582 - add_action('admin_notices', 'mxchat_show_migration_notice');
1583 -
1584 645 // Initialize classes with error handling
1585 646 try {
1586 647 // Initialize admin classes
1587 648 if (is_admin()) {
@@ -1596,32 +657,10 @@
1596 657 // Initialize meta box class
1597 658 if (class_exists('MxChat_Meta_Box')) {
1598 659 new MxChat_Meta_Box();
1599 660 }
1600 -
1601 661 }
1602 -
1603 - // Initialize content generator globally — it registers wp_head hook
1604 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1605 - if (class_exists('MxChat_Content_Generator')) {
1606 - new MxChat_Content_Generator();
1607 - }
1608 -
1609 - // Initialize cache purge globally — settings writes can happen on any
1610 - // request type (admin screens, admin-ajax autosave, wp-cli), and the
1611 - // deferred-purge cron event fires on front-end requests.
1612 - if (class_exists('MxChat_Cache_Purge')) {
1613 - MxChat_Cache_Purge::init();
1614 - }
1615 -
1616 - // Initialize REST API globally — endpoints must be registered on
1617 - // every request (admin and frontend) so they're reachable via /wp-json/.
1618 - // Endpoints are auth-gated and locked until the site owner generates
1619 - // a token in MxChat → API Access.
1620 - if (class_exists('MxChat_Rest_Api')) {
1621 - new MxChat_Rest_Api();
1622 - }
1623 -
662 +
1624 663 // Initialize public classes
1625 664 if (class_exists('MxChat_Public')) {
1626 665 $mxchat_public = new MxChat_Public();
1627 666 }
@@ -1626,9 +665,8 @@
1626 665 $mxchat_public = new MxChat_Public();
1627 666 }
1628 667
1629 668 if (class_exists('MxChat_Integrator')) {
1630 - global $mxchat_integrator;
1631 669 $mxchat_integrator = new MxChat_Integrator();
1632 670 }
1633 671
1634 672 } catch (Exception $e) {
@@ -1648,74 +686,8 @@
1648 686
1649 687 // Run initialization on plugins_loaded
1650 688 add_action('plugins_loaded', 'mxchat_init');
1651 689
1652 -// Run migration check on admin init (for auto-updates without reactivation)
1653 -add_action('admin_init', 'mxchat_check_and_run_migrations');
1654 -
1655 -/**
1656 - * Check and run migrations on admin init
1657 - * This ensures migrations run even when plugin is auto-updated
1658 - */
1659 -function mxchat_check_and_run_migrations() {
1660 - // Only run in admin and not on every request
1661 - static $checked = false;
1662 - if ($checked) {
1663 - return;
1664 - }
1665 - $checked = true;
1666 -
1667 - mxchat_migrate_pinecone_roles_add_bot_id();
1668 - mxchat_migrate_add_content_type_column();
1669 - mxchat_migrate_add_translations_table();
1670 - mxchat_migrate_add_session_ratings_table();
1671 -}
1672 -
1673 -/**
1674 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1675 - * For users upgrading from versions before 3.2.6
1676 - */
1677 -function mxchat_migrate_add_session_ratings_table() {
1678 - $migration_key = 'mxchat_session_ratings_table_created';
1679 - if (get_option($migration_key)) {
1680 - return;
1681 - }
1682 - mxchat_create_session_ratings_table();
1683 - update_option($migration_key, '3.2.6');
1684 -}
1685 -
1686 -/**
1687 - * Migration: Create transcript translations table (v3.0.4)
1688 - * For users upgrading from versions before 3.0.4
1689 - */
1690 -function mxchat_migrate_add_translations_table() {
1691 - $migration_key = 'mxchat_translations_table_created';
1692 -
1693 - // Check if migration already ran
1694 - if (get_option($migration_key)) {
1695 - return;
1696 - }
1697 -
1698 - // Create the translations table
1699 - mxchat_create_translations_table();
1700 -
1701 - // Mark migration as complete
1702 - update_option($migration_key, '3.0.4');
1703 -}
1704 -
1705 -/**
1706 - * Migration: Update deprecated Gemini embedding model (v3.0.5)
1707 - * Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected
1708 - */
1709 -function mxchat_migrate_gemini_embedding_model() {
1710 - $options = get_option('mxchat_options', array());
1711 -
1712 - if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') {
1713 - $options['embedding_model'] = 'gemini-embedding-001';
1714 - update_option('mxchat_options', $options);
1715 - }
1716 -}
1717 -
1718 690 // Register activation hook
1719 691 register_activation_hook(__FILE__, 'mxchat_activate');
1720 692
1721 693 // Add cron schedule
@@ -1727,67 +699,5 @@
1727 699 return $schedules;
1728 700 });
1729 701
1730 702 // Register deactivation hook
1731 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
1732 -
1733 -/**
1734 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
1735 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
1736 - * session_id makes this naturally idempotent — only the first rating per
1737 - * session is stored; duplicate POSTs are silent no-ops.
1738 - */
1739 -function mxchat_save_session_rating() {
1740 - global $wpdb;
1741 -
1742 - $session_id = isset($_POST['session_id']) ? sanitize_text_field(wp_unslash($_POST['session_id'])) : '';
1743 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
1744 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
1745 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
1746 -
1747 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
1748 - wp_send_json_error(array('message' => 'invalid_input'), 400);
1749 - }
1750 -
1751 - if (strlen($feedback) > 1000) {
1752 - $feedback = substr($feedback, 0, 1000);
1753 - }
1754 -
1755 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
1756 - $existing = $wpdb->get_var($wpdb->prepare(
1757 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
1758 - $session_id
1759 - ));
1760 -
1761 - if ($existing) {
1762 - if ($feedback !== '') {
1763 - $wpdb->update(
1764 - $table_name,
1765 - array('rating_feedback' => $feedback),
1766 - array('id' => (int) $existing),
1767 - array('%s'),
1768 - array('%d')
1769 - );
1770 - }
1771 - wp_send_json_success(array('updated' => true));
1772 - }
1773 -
1774 - $inserted = $wpdb->insert(
1775 - $table_name,
1776 - array(
1777 - 'session_id' => $session_id,
1778 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
1779 - 'rating_value' => $rating_raw,
1780 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
1781 - 'created_at' => current_time('mysql'),
1782 - ),
1783 - array('%s', '%s', '%d', '%s', '%s')
1784 - );
1785 -
1786 - if ($inserted === false) {
1787 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
1788 - }
1789 -
1790 - wp_send_json_success(array('saved' => true));
1791 -}
1792 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
1793 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
703 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');