PluginProbe
MxChat – AI Chatbot & Content Generation for WordPress / 2.5.8
MxChat – AI Chatbot & Content Generation for WordPress v2.5.8
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 +94 -1211 3.2.192.5.8 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: 3.2.19
6 + * Version: 2.5.8
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
@@ -15,430 +15,31 @@
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 - // 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);
23 + define('MXCHAT_VERSION', $plugin_data['Version']);
39 24 }
40 25
41 -/**
42 - * Default confidence floor for the in-chat YouTube card, as a percentage
43 - * (plan-mxchat-20260813-f52492). Higher than the site-wide Similarity
44 - * Threshold default of 35 by design — see MxChat_Utils::video_embed_threshold().
45 - * Declared here so the gate, the admin field and the tests all read ONE number.
46 - */
47 -if (!defined('MXCHAT_VIDEO_EMBED_THRESHOLD_DEFAULT')) {
48 - define('MXCHAT_VIDEO_EMBED_THRESHOLD_DEFAULT', 55);
49 -}
50 -
51 -/**
52 - * Honest, versioned User-Agent for MXChat remote-content ingestion fetches
53 - * (Knowledge Base PDF import, URL import, sitemap / website crawl).
54 - *
55 - * WAF rulesets (SiteGround/ModSecurity, Wordfence, Cloudflare managed rules)
56 - * flag stale spoofed-browser UAs as scrapers and return 403 — which silently
57 - * broke the single most common KB source: self-hosted media on the site's own
58 - * domain. A truthful crawler identifier is the industry norm for well-behaved
59 - * bots and lets a site owner allowlist "MXChatBot" in their WAF. Filterable so
60 - * a locked-down host can supply a different string without a code change.
61 - */
62 -if (!function_exists('mxchat_ingest_user_agent')) {
63 - function mxchat_ingest_user_agent() {
64 - $version = defined('MXCHAT_VERSION') ? MXCHAT_VERSION : '1.0';
65 - $ua = 'MXChatBot/' . $version . ' (+https://mxchat.ai/bot)';
66 - return apply_filters('mxchat_ingest_user_agent', $ua);
67 - }
68 -}
69 -
70 26 function mxchat_load_textdomain() {
71 - $domain = 'mxchat';
72 - $locale = determine_locale();
73 -
74 - // First, try to load from /wp-content/languages/plugins/ (preserved during updates)
75 - $mo_file = WP_LANG_DIR . '/plugins/' . $domain . '-' . $locale . '.mo';
76 - if (file_exists($mo_file)) {
77 - load_textdomain($domain, $mo_file);
78 - return;
79 - }
80 -
81 - // Fallback to plugin's /languages directory
82 - load_plugin_textdomain($domain, false, dirname(plugin_basename(__FILE__)) . '/languages');
27 + load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages');
83 28 }
84 29 add_action('init', 'mxchat_load_textdomain');
85 30
86 -/**
87 - * One-time migration: gemini-3-pro-preview was shut down by Google on March 9, 2026.
88 - * Existing installs with the dead ID get auto-remapped to gemini-3.1-pro-preview
89 - * (Google's official migration target) the first time admin_init fires after update.
90 - */
91 -add_action('admin_init', function () {
92 - if (get_option('mxchat_gemini_3_remap_done')) {
93 - return;
94 - }
95 - $opts = get_option('mxchat_options');
96 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'gemini-3-pro-preview') {
97 - $opts['model'] = 'gemini-3.1-pro-preview';
98 - update_option('mxchat_options', $opts);
99 - }
100 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'gemini-3-pro-preview') {
101 - $opts['content_model'] = 'gemini-3.1-pro-preview';
102 - update_option('mxchat_options', $opts);
103 - }
104 - update_option('mxchat_gemini_3_remap_done', 1);
105 -});
106 -
107 -/**
108 - * One-time migration: the Grok 2 family was retired by xAI (grok-2, grok-2-1212,
109 - * grok-2-latest, grok-2-vision-1212 all return 400 "Model not found"). Existing
110 - * installs with the dead ID get auto-remapped to grok-4-1-fast-non-reasoning
111 - * (modern, fast, broadly available) the first time admin_init fires after update.
112 - */
113 -add_action('admin_init', function () {
114 - if (get_option('mxchat_grok_2_remap_done')) {
115 - return;
116 - }
117 - $opts = get_option('mxchat_options');
118 - if (is_array($opts) && isset($opts['model']) && $opts['model'] === 'grok-2') {
119 - $opts['model'] = 'grok-4-1-fast-non-reasoning';
120 - update_option('mxchat_options', $opts);
121 - }
122 - if (is_array($opts) && isset($opts['content_model']) && $opts['content_model'] === 'grok-2') {
123 - $opts['content_model'] = 'grok-4-1-fast-non-reasoning';
124 - update_option('mxchat_options', $opts);
125 - }
126 - update_option('mxchat_grok_2_remap_done', 1);
127 -});
128 -
129 -/**
130 - * One-time migration: Anthropic retired the Claude 4 (2025-05-14) snapshots on
131 - * June 15, 2026 — claude-opus-4-20250514 and claude-sonnet-4-20250514 now return
132 - * an API error. Existing installs with a dead ID get auto-remapped to the current
133 - * equivalents Anthropic recommends (Opus 4.8 / Sonnet 4.6) the first time admin_init
134 - * fires after update. Mirrors the gemini-3-pro-preview / grok-2 rescues above.
135 - */
136 -add_action('admin_init', function () {
137 - if (get_option('mxchat_claude_4_retire_remap_done')) {
138 - return;
139 - }
140 - $map = array(
141 - 'claude-opus-4-20250514' => 'claude-opus-4-8',
142 - 'claude-sonnet-4-20250514' => 'claude-sonnet-4-6',
143 - );
144 - $opts = get_option('mxchat_options');
145 - if (is_array($opts)) {
146 - $changed = false;
147 - if (isset($opts['model']) && isset($map[$opts['model']])) {
148 - $opts['model'] = $map[$opts['model']];
149 - $changed = true;
150 - }
151 - if (isset($opts['content_model']) && isset($map[$opts['content_model']])) {
152 - $opts['content_model'] = $map[$opts['content_model']];
153 - $changed = true;
154 - }
155 - if ($changed) {
156 - update_option('mxchat_options', $opts);
157 - }
158 - }
159 - update_option('mxchat_claude_4_retire_remap_done', 1);
160 -});
161 -
162 -/**
163 - * Exclude MxChat assets from caching plugin optimizations
164 - *
165 - * This prevents issues with WP Rocket, LiteSpeed Cache, Autoptimize, WP Super Cache,
166 - * W3 Total Cache, SG Optimizer, and similar plugins that may break the chatbot by
167 - * removing "unused" CSS, minifying/combining JS, or deferring/delaying jQuery.
168 - *
169 - * Both chat-script.js and floating-script.js depend on jQuery, so jQuery must also
170 - * be excluded from any optimization that changes load order or timing.
171 - */
172 -
173 -// ── WP Rocket ────────────────────────────────────────────────────────────────
174 -
175 -// Exclude from Remove Unused CSS (RUCSS)
176 -add_filter('rocket_rucss_inline_atts_exclusions', function($exclusions) {
177 - if (!is_array($exclusions)) $exclusions = array();
178 - $exclusions[] = 'mxchat';
179 - return $exclusions;
180 -});
181 -
182 -// Exclude CSS from minification/combination
183 -add_filter('rocket_exclude_css', function($excluded) {
184 - if (!is_array($excluded)) $excluded = array();
185 - $excluded[] = '/plugins/mxchat-basic/css/chat-style.css';
186 - return $excluded;
187 -});
188 -
189 -// Exclude JS from minification/combination
190 -add_filter('rocket_exclude_js', function($excluded) {
191 - if (!is_array($excluded)) $excluded = array();
192 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
193 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
194 - $excluded[] = '/jquery-core';
195 - $excluded[] = '/jquery.min.js';
196 - $excluded[] = '/jquery.js';
197 - $excluded[] = '/jquery-migrate';
198 - return $excluded;
199 -});
200 -
201 -// Exclude JS from defer
202 -add_filter('rocket_exclude_defer_js', function($excluded) {
203 - if (!is_array($excluded)) $excluded = array();
204 - $excluded[] = '/plugins/mxchat-basic/js/chat-script.js';
205 - $excluded[] = '/plugins/mxchat-basic/js/floating-script.js';
206 - $excluded[] = '/jquery-core';
207 - $excluded[] = '/jquery.min.js';
208 - $excluded[] = '/jquery.js';
209 - $excluded[] = '/jquery-migrate';
210 - return $excluded;
211 -});
212 -
213 -// Exclude from delay JS execution
214 -add_filter('rocket_delay_js_exclusions', function($excluded) {
215 - if (!is_array($excluded)) $excluded = array();
216 - $excluded[] = 'mxchat';
217 - $excluded[] = 'chat-script';
218 - $excluded[] = 'floating-script';
219 - $excluded[] = '/jquery-core';
220 - $excluded[] = '/jquery.min.js';
221 - $excluded[] = '/jquery.js';
222 - $excluded[] = '/jquery-migrate';
223 - return $excluded;
224 -});
225 -
226 -// ── LiteSpeed Cache ──────────────────────────────────────────────────────────
227 -
228 -// Exclude CSS from optimization
229 -add_filter('litespeed_optimize_css_excludes', function($excluded) {
230 - if (!is_array($excluded)) $excluded = array();
231 - $excluded[] = 'chat-style.css';
232 - $excluded[] = 'mxchat';
233 - return $excluded;
234 -});
235 -
236 -// Exclude from UCSS (Unique CSS) - prevents LiteSpeed from stripping "unused" MxChat CSS
237 -add_filter('litespeed_ucss_whitelist', function($whitelist) {
238 - if (!is_array($whitelist)) $whitelist = array();
239 - $whitelist[] = '.mxchat-chatbot-wrapper';
240 - $whitelist[] = '.floating-chatbot';
241 - $whitelist[] = '.floating-chatbot-button';
242 - $whitelist[] = '.chatbot-top-bar';
243 - $whitelist[] = '.mxchat-chatbot';
244 - $whitelist[] = '.chat-container';
245 - $whitelist[] = '.chat-box';
246 - $whitelist[] = '.bot-message';
247 - $whitelist[] = '.input-container';
248 - $whitelist[] = '.chat-input';
249 - $whitelist[] = '.send-button';
250 - $whitelist[] = '.pre-chat-message';
251 - $whitelist[] = '.mxchat-popular-questions';
252 - $whitelist[] = '.chat-toolbar';
253 - $whitelist[] = '.exit-chat';
254 - $whitelist[] = '.email-blocker';
255 - return $whitelist;
256 -});
257 -
258 -// Exclude CSS from CCSS (Critical CSS) generation
259 -add_filter('litespeed_optm_ccss_exc', function($excluded) {
260 - if (!is_array($excluded)) $excluded = array();
261 - $excluded[] = 'chat-style.css';
262 - $excluded[] = 'mxchat';
263 - return $excluded;
264 -});
265 -
266 -// Exclude JS from defer
267 -add_filter('litespeed_optm_js_defer_exc', function($excluded) {
268 - if (!is_array($excluded)) $excluded = array();
269 - $excluded[] = 'chat-script.js';
270 - $excluded[] = 'floating-script.js';
271 - $excluded[] = 'mxchat';
272 - $excluded[] = 'jquery.min.js';
273 - $excluded[] = 'jquery.js';
274 - return $excluded;
275 -});
276 -
277 -// Exclude JS from combining
278 -add_filter('litespeed_optm_js_exc', function($excluded) {
279 - if (!is_array($excluded)) $excluded = array();
280 - $excluded[] = 'chat-script.js';
281 - $excluded[] = 'floating-script.js';
282 - $excluded[] = 'mxchat';
283 - $excluded[] = 'jquery.min.js';
284 - $excluded[] = 'jquery.js';
285 - return $excluded;
286 -});
287 -
288 -// Exclude JS from delayed execution
289 -add_filter('litespeed_optm_js_delay_exc', function($excluded) {
290 - if (!is_array($excluded)) $excluded = array();
291 - $excluded[] = 'chat-script.js';
292 - $excluded[] = 'floating-script.js';
293 - $excluded[] = 'mxchat';
294 - return $excluded;
295 -});
296 -
297 -// Exclude from Guest Mode optimization
298 -add_filter('litespeed_guest_optm_exc', function($excluded) {
299 - if (!is_array($excluded)) $excluded = array();
300 - $excluded[] = 'mxchat';
301 - $excluded[] = 'chat-style';
302 - $excluded[] = 'chat-script';
303 - $excluded[] = 'floating-script';
304 - return $excluded;
305 -});
306 -
307 -// ── Autoptimize ──────────────────────────────────────────────────────────────
308 -
309 -// Exclude CSS from optimization (comma-separated strings)
310 -add_filter('autoptimize_filter_css_exclude', function($excluded) {
311 - if (!is_string($excluded)) $excluded = '';
312 - return $excluded . ', mxchat, chat-style.css';
313 -});
314 -
315 -// Exclude JS from optimization (comma-separated strings)
316 -add_filter('autoptimize_filter_js_exclude', function($excluded) {
317 - if (!is_string($excluded)) $excluded = '';
318 - return $excluded . ', mxchat, chat-script.js, floating-script.js, jquery.min.js, jquery.js';
319 -});
320 -
321 -// ── SG Optimizer (SiteGround) ────────────────────────────────────────────────
322 -
323 -add_filter('sgo_js_minify_exclude', function($excluded) {
324 - if (!is_array($excluded)) $excluded = array();
325 - $excluded[] = 'chat-script.js';
326 - $excluded[] = 'floating-script.js';
327 - $excluded[] = 'jquery.min.js';
328 - return $excluded;
329 -});
330 -
331 -add_filter('sgo_javascript_combine_exclude', function($excluded) {
332 - if (!is_array($excluded)) $excluded = array();
333 - $excluded[] = 'chat-script.js';
334 - $excluded[] = 'floating-script.js';
335 - $excluded[] = 'jquery.min.js';
336 - return $excluded;
337 -});
338 -
339 -add_filter('sgo_js_async_exclude', function($excluded) {
340 - if (!is_array($excluded)) $excluded = array();
341 - $excluded[] = 'chat-script.js';
342 - $excluded[] = 'floating-script.js';
343 - $excluded[] = 'jquery.min.js';
344 - return $excluded;
345 -});
346 -
347 -// ── W3 Total Cache ───────────────────────────────────────────────────────────
348 -
349 -add_filter('w3tc_minify_js_do_tag_minification', function($do_minify, $script_tag, $file) {
350 - if (strpos($file, 'chat-script.js') !== false ||
351 - strpos($file, 'floating-script.js') !== false ||
352 - strpos($file, 'jquery.min.js') !== false ||
353 - strpos($file, 'jquery.js') !== false) {
354 - return false;
355 - }
356 - return $do_minify;
357 -}, 10, 3);
358 -
359 -// ── WP Super Cache ──────────────────────────────────────────────────────────
360 -
361 -add_filter('wpsc_rejected_uri', function($rejected) {
362 - if (!is_array($rejected)) $rejected = array();
363 - $rejected[] = 'wp-admin/admin-ajax.php';
364 - return $rejected;
365 -});
366 -
367 -// ── Page-cache bypass for chat AJAX (companion to the 3.2.6 nonce-race hotfix)
368 -// Each cache plugin gets its own filter export so that visitors hitting an
369 -// edge-cached page never receive cached chat-AJAX responses. The chat send /
370 -// stream send / file upload all POST to /wp-admin/admin-ajax.php with
371 -// `action=mxchat_*`. Without these exports, a cache plugin can stale a response
372 -// and break the per-session nonce flow on the first message.
373 -
374 -// WP Rocket — `rocket_cache_reject_uri` takes a flat array of regex strings.
375 -add_filter('rocket_cache_reject_uri', function($uris) {
376 - if (!is_array($uris)) $uris = array();
377 - $uris[] = '/wp-admin/admin-ajax\.php\?action=mxchat_.*';
378 - return $uris;
379 -});
380 -
381 -// LiteSpeed Cache — `litespeed_cache_no_cache_for_request` short-circuits
382 -// caching when the request matches our chat-AJAX pattern.
383 -add_filter('litespeed_cache_no_cache_for_request', function($no_cache) {
384 - if ($no_cache) return $no_cache;
385 - if (!empty($_SERVER['REQUEST_URI']) &&
386 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
387 - !empty($_REQUEST['action']) &&
388 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
389 - return true;
390 - }
391 - return $no_cache;
392 -});
393 -
394 -// W3 Total Cache — `w3tc_pgcache_request_skip_uri` flips page-cache off when
395 -// the URI matches.
396 -add_filter('w3tc_pgcache_request_skip_uri', function($skip) {
397 - if ($skip) return $skip;
398 - if (!empty($_SERVER['REQUEST_URI']) &&
399 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
400 - !empty($_REQUEST['action']) &&
401 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
402 - return true;
403 - }
404 - return $skip;
405 -});
406 -
407 -// FlyingPress — `flying_press_cacheable` takes a boolean and is run per
408 -// request. Same pattern as LiteSpeed / W3TC.
409 -add_filter('flying_press_cacheable', function($cacheable) {
410 - if (!$cacheable) return $cacheable;
411 - if (!empty($_SERVER['REQUEST_URI']) &&
412 - strpos($_SERVER['REQUEST_URI'], '/wp-admin/admin-ajax.php') !== false &&
413 - !empty($_REQUEST['action']) &&
414 - strpos((string) $_REQUEST['action'], 'mxchat_') === 0) {
415 - return false;
416 - }
417 - return $cacheable;
418 -});
419 -
420 31 // Include classes with error handling
421 32 function mxchat_include_classes() {
422 33 $class_files = array(
423 - 'includes/class-mxchat-model-catalog.php',
424 - 'includes/class-mxchat-model-liveness.php',
425 - 'includes/class-mxchat-session-store.php',
426 - 'includes/class-mxchat-live-agent-schedule.php',
427 - 'includes/class-mxchat-tool-registry.php',
428 34 'includes/class-mxchat-integrator.php',
429 35 'includes/class-mxchat-admin.php',
430 36 'includes/class-mxchat-public.php',
431 37 'includes/class-mxchat-utils.php',
432 38 'includes/class-mxchat-user.php',
433 - 'includes/class-mxchat-privacy.php',
434 39 'includes/class-mxchat-meta-box.php',
435 - 'includes/class-mxchat-chunker.php',
40 + 'includes/pdf-parser/alt_autoload.php',
436 41 'includes/class-mxchat-word-handler.php',
437 - 'includes/class-mxchat-content-generator.php',
438 - 'includes/class-mxchat-cache-purge.php',
439 - 'includes/class-mxchat-editor-assistant.php',
440 - 'includes/class-rest-api.php',
441 42 'admin/class-ajax-handler.php',
442 43 'admin/class-pinecone-manager.php',
443 44 'admin/class-knowledge-manager.php'
444 45 );
@@ -450,75 +51,11 @@
450 51 } else {
451 52 //error_log('MxChat: Missing class file - ' . $file);
452 53 }
453 54 }
454 -
455 - // Register the native function-calling admin-post save handler (a41dee).
456 - if (class_exists('MxChat_Tool_Registry')) {
457 - MxChat_Tool_Registry::init();
458 - }
459 -
460 - // GDPR: register with WP's personal-data export/erase tools (b81e42).
461 - if (class_exists('MxChat_Privacy')) {
462 - MxChat_Privacy::init();
463 - }
464 -
465 - // Per-session state store: retention cron + the cron-independent
466 - // migration drain off admin_init (b64b77).
467 - if (class_exists('MxChat_Session_Store')) {
468 - MxChat_Session_Store::init();
469 - }
470 -
471 - // Daily model-liveness check + its warning notice (b65e8d). Read-only and
472 - // fail-open: one listing request per in-use provider per day, none at all
473 - // when no key is stored.
474 - if (class_exists('MxChat_Model_Liveness')) {
475 - MxChat_Model_Liveness::init();
476 - }
477 -
478 - // Editor Assistant — free, OFF-by-default block-editor AI actions (plan-8cb0cb).
479 - // init() wires REST + streaming AJAX + sidebar enqueue ONLY when the
480 - // mxchat_editor_assistant_enabled option is 'on'; otherwise zero footprint.
481 - if (class_exists('MxChat_Editor_Assistant')) {
482 - MxChat_Editor_Assistant::init();
483 - }
484 -
485 - // Admin pages that aren't classes (procedural include).
486 - if (is_admin()) {
487 - $admin_api_page = plugin_dir_path(__FILE__) . 'includes/admin-api-page.php';
488 - if (file_exists($admin_api_page)) {
489 - require_once $admin_api_page;
490 - }
491 - // f7c7d4 renamed this file admin-dashboard-page.php → admin-onboarding-page.php.
492 - // The require MUST live here (admin bootstrap) and not just inside
493 - // mxchat_add_plugin_page() on the admin_menu hook — admin_menu does NOT
494 - // fire on admin-ajax.php requests, so the wizard's AJAX handlers
495 - // (plan-905439: mxchat_onboarding_kb_status / save_step / mark_step /
496 - // auto_graduate + the f7c7d4 dismiss handler) would never register.
497 - $admin_onboarding_page = plugin_dir_path(__FILE__) . 'includes/admin-onboarding-page.php';
498 - if (file_exists($admin_onboarding_page)) {
499 - require_once $admin_onboarding_page;
500 - }
501 - }
502 55 }
503 56
504 57 /**
505 - * Lazy-load the PDF parser library only when needed.
506 - * Avoids loading 44 files on every page request.
507 - */
508 -function mxchat_load_pdf_parser() {
509 - if (class_exists('\Smalot\PdfParser\Parser')) {
510 - return true;
511 - }
512 - $autoload_path = plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
513 - if (file_exists($autoload_path)) {
514 - require_once $autoload_path;
515 - return true;
516 - }
517 - return false;
518 -}
519 -
520 -/**
521 58 * Create URL click tracking table
522 59 */
523 60 function mxchat_create_url_clicks_table() {
524 61 global $wpdb;
@@ -544,26 +81,8 @@
544 81 dbDelta($sql);
545 82 }
546 83
547 84 /**
548 - * Create the per-session state table (b64b77).
549 - *
550 - * Callable from the activation hook, which can run before plugins_loaded has
551 - * included the class files — so it loads the class itself when needed.
552 - */
553 -function mxchat_create_sessions_table() {
554 - if (!class_exists('MxChat_Session_Store')) {
555 - $path = plugin_dir_path(__FILE__) . 'includes/class-mxchat-session-store.php';
556 - if (!file_exists($path)) {
557 - return false;
558 - }
559 - require_once $path;
560 - }
561 -
562 - return MxChat_Session_Store::create_table();
563 -}
564 -
565 -/**
566 85 * FIXED: Robust table creation and column management
567 86 */
568 87 function mxchat_create_chat_transcripts_table() {
569 88 global $wpdb;
@@ -619,13 +138,12 @@
619 138
620 139 // Define all required columns and their types
621 140 $required_columns = [
622 141 'user_identifier' => 'VARCHAR(255) DEFAULT NULL',
623 - 'user_email' => 'VARCHAR(255) DEFAULT NULL',
142 + 'user_email' => 'VARCHAR(255) DEFAULT NULL',
624 143 'user_name' => 'VARCHAR(100) DEFAULT NULL',
625 144 'originating_page_url' => 'TEXT DEFAULT NULL',
626 - 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL',
627 - 'rag_context' => 'LONGTEXT DEFAULT NULL'
145 + 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL'
628 146 ];
629 147
630 148 // Get existing columns
631 149 $existing_columns = $wpdb->get_results("SHOW COLUMNS FROM $table_name");
@@ -804,9 +322,9 @@
804 322
805 323 // Add index for bot_id
806 324 $wpdb->query("ALTER TABLE {$table_name} ADD KEY bot_id (bot_id)");
807 325
808 - //error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
326 + error_log('MxChat: Successfully added bot_id column to mxchat_pinecone_roles table');
809 327 }
810 328
811 329 // Mark migration as complete
812 330 update_option('mxchat_pinecone_roles_migration_version', '2.5.2');
@@ -841,9 +359,9 @@
841 359
842 360 // Add index for better query performance
843 361 $wpdb->query("ALTER TABLE {$table_name} ADD KEY content_type (content_type)");
844 362
845 - //error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
363 + error_log('MxChat: Successfully added content_type column to mxchat_system_prompt_content table');
846 364 }
847 365
848 366 // Mark migration as complete
849 367 update_option('mxchat_content_type_migration_version', '2.5.6');
@@ -849,33 +367,8 @@
849 367 update_option('mxchat_content_type_migration_version', '2.5.6');
850 368 }
851 369
852 370 /**
853 - * 3.2.4: Backfill the active embedding model option for installs that already
854 - * have KB content but no stamped model. The mismatch warning compares this
855 - * against the user's currently selected model — no per-row column needed.
856 - */
857 -function mxchat_backfill_active_embedding_model() {
858 - global $wpdb;
859 -
860 - if (get_option('mxchat_active_embedding_model', '') !== '') {
861 - return;
862 - }
863 -
864 - $kb_table = $wpdb->prefix . 'mxchat_system_prompt_content';
865 - if ($wpdb->get_var("SHOW TABLES LIKE '{$kb_table}'") !== $kb_table) {
866 - return;
867 - }
868 -
869 - $kb_count = (int) $wpdb->get_var("SELECT COUNT(*) FROM {$kb_table}");
870 - if ($kb_count > 0) {
871 - $options = get_option('mxchat_options', array());
872 - $current_model = $options['embedding_model'] ?? 'text-embedding-ada-002';
873 - update_option('mxchat_active_embedding_model', $current_model, false);
874 - }
875 -}
876 -
877 -/**
878 371 * 2.5.2: Create queue processing tables for reliable background processing
879 372 */
880 373 function mxchat_create_queue_tables() {
881 374 global $wpdb;
@@ -923,58 +416,8 @@
923 416 //error_log("MxChat: Queue tables created/updated successfully");
924 417 }
925 418
926 419 /**
927 - * Create transcript translations table for persisting translations
928 - */
929 -function mxchat_create_translations_table() {
930 - global $wpdb;
931 - $charset_collate = $wpdb->get_charset_collate();
932 -
933 - $table_name = $wpdb->prefix . 'mxchat_transcript_translations';
934 - $sql = "CREATE TABLE $table_name (
935 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
936 - session_id varchar(255) NOT NULL,
937 - language_code varchar(10) NOT NULL,
938 - translations longtext NOT NULL,
939 - created_at datetime NOT NULL,
940 - updated_at datetime NOT NULL,
941 - PRIMARY KEY (id),
942 - UNIQUE KEY session_lang (session_id, language_code),
943 - KEY session_id (session_id)
944 - ) $charset_collate;";
945 -
946 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
947 - dbDelta($sql);
948 -}
949 -
950 -/**
951 - * Create per-session satisfaction ratings table (v3.2.6)
952 - * Stores one 👍/👎 rating + optional feedback per chat session.
953 - */
954 -function mxchat_create_session_ratings_table() {
955 - global $wpdb;
956 - $charset_collate = $wpdb->get_charset_collate();
957 -
958 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
959 - $sql = "CREATE TABLE $table_name (
960 - id bigint(20) unsigned NOT NULL AUTO_INCREMENT,
961 - session_id varchar(255) NOT NULL,
962 - bot_id varchar(50) NOT NULL DEFAULT 'default',
963 - rating_value tinyint(1) NOT NULL,
964 - rating_feedback text DEFAULT NULL,
965 - created_at datetime NOT NULL,
966 - PRIMARY KEY (id),
967 - UNIQUE KEY session_id (session_id),
968 - KEY bot_id (bot_id),
969 - KEY created_at (created_at)
970 - ) $charset_collate;";
971 -
972 - require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
973 - dbDelta($sql);
974 -}
975 -
976 -/**
977 420 * 2.5.2: Fix URL column size to support long URLs (especially with UTF-8 encoding)
978 421 * This fixes "url, source_url. The supplied values may be too long" errors
979 422 */
980 423 function mxchat_fix_url_column_size() {
@@ -997,135 +440,22 @@
997 440
998 441 /**
999 442 * Migrate deprecated AI models to their replacements
1000 443 * Version 2.5.1: Migrate Claude 3.5 Sonnet (deprecated) to Claude 3.7 Sonnet
1001 - * Version 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1002 - * Without utf8mb4, any bot response containing emojis silently fails to insert.
1003 444 */
1004 -function mxchat_migrate_transcripts_charset() {
1005 - global $wpdb;
1006 - $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
1007 - $wpdb->query("ALTER TABLE $table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
1008 -}
1009 -
1010 -/**
1011 - * Version 3.0.55: Migrate GPT-4 series models (deprecated 2026-02-17) to GPT-5 series
1012 - */
1013 445 function mxchat_migrate_deprecated_models() {
1014 446 $options = get_option('mxchat_options', array());
1015 - $migrated = false;
1016 - $migration_message = '';
1017 -
1018 - if (!isset($options['model'])) {
1019 - return;
1020 - }
1021 -
1022 - $current_model = $options['model'];
1023 -
1024 - // Migrate deprecated/retired Claude models BY TIER so a rescued site lands on
1025 - // the current generation, not an older intermediate (plan dc91bd — the previous
1026 - // single target, claude-opus-4-6, is now two Opus generations behind).
1027 - $deprecated_claude_opus = array(
1028 - 'claude-3-opus-20240229', // Retired Jan 5, 2026
1029 - 'claude-opus-4-20250514', // Deprecated
1030 - 'claude-opus-4-1-20250805', // Retired Aug 5, 2026 (first-party API)
1031 - );
1032 - $deprecated_claude_sonnet = array(
1033 - 'claude-3-5-sonnet-20240620', // Retired Oct 28, 2025
1034 - 'claude-3-5-sonnet-20241022', // Retired Oct 28, 2025
1035 - 'claude-3-7-sonnet-20250219', // Retired Feb 19, 2026
1036 - 'claude-3-sonnet-20240229', // Legacy
1037 - 'claude-sonnet-4-20250514', // Deprecated
1038 - );
1039 - $deprecated_claude_haiku = array(
1040 - 'claude-3-haiku-20240307', // Legacy
1041 - 'claude-3-5-haiku-20241022', // Deprecated
1042 - );
1043 - if (in_array($current_model, $deprecated_claude_opus, true)) {
1044 - $options['model'] = 'claude-opus-5';
1045 - $migrated = true;
1046 - $migration_message = sprintf(
1047 - 'Your chatbot model has been automatically updated from %s to Claude Opus 5 because Anthropic retired the older Claude model.',
1048 - $current_model
1049 - );
1050 - } elseif (in_array($current_model, $deprecated_claude_sonnet, true)) {
1051 - $options['model'] = 'claude-sonnet-5';
1052 - $migrated = true;
1053 - $migration_message = sprintf(
1054 - 'Your chatbot model has been automatically updated from %s to Claude Sonnet 5 because Anthropic retired the older Claude model.',
1055 - $current_model
1056 - );
1057 - } elseif (in_array($current_model, $deprecated_claude_haiku, true)) {
1058 - $options['model'] = 'claude-haiku-4-5-20251001';
1059 - $migrated = true;
1060 - $migration_message = sprintf(
1061 - 'Your chatbot model has been automatically updated from %s to Claude Haiku 4.5 because Anthropic retired the older Claude model.',
1062 - $current_model
1063 - );
1064 - }
1065 -
1066 - // Migrate deprecated GPT-4 series and GPT-3.5 Turbo to GPT-5.6 Sol.
1067 - // (Previous target gpt-5.1-chat-latest itself retires 2026-08-10 — never
1068 - // migrate onto a model that is already on a deprecation list.)
1069 - if (in_array($current_model, array('gpt-4o', 'gpt-4.1-2025-04-14', 'gpt-4-turbo', 'gpt-4', 'gpt-3.5-turbo'), true)) {
1070 - $options['model'] = 'gpt-5.6-sol';
1071 - $migrated = true;
1072 - $migration_message = sprintf(
1073 - 'Your chatbot model has been automatically updated from %s to GPT-5.6 Sol due to OpenAI deprecating older models.',
1074 - $current_model
1075 - );
1076 - }
1077 -
1078 - // Migrate the gpt-5.x-chat-latest aliases OpenAI retires on August 10, 2026.
1079 - // Replacement per OpenAI's deprecations page: gpt-5.6-sol (plan e46b8f).
1080 - if (in_array($current_model, array('gpt-5.1-chat-latest', 'gpt-5.3-chat-latest'), true)) {
1081 - $options['model'] = 'gpt-5.6-sol';
1082 - $migrated = true;
1083 - $migration_message = sprintf(
1084 - 'Your chatbot model has been automatically updated from %s to GPT-5.6 Sol because OpenAI retires the GPT-5.x Chat Latest models on August 10, 2026.',
1085 - $current_model
1086 - );
1087 - }
1088 -
1089 - // The content generator has its own model option — same retirement applies.
1090 - if (isset($options['content_model'])
1091 - && in_array($options['content_model'], array('gpt-5.1-chat-latest', 'gpt-5.3-chat-latest'), true)) {
1092 - $old_content_model = $options['content_model'];
1093 - $options['content_model'] = 'gpt-5.6-sol';
1094 - $migrated = true;
1095 - $migration_message = trim($migration_message . ' ' . sprintf(
1096 - 'Your content generation model has also been updated from %s to GPT-5.6 Sol for the same OpenAI retirement.',
1097 - $old_content_model
1098 - ));
1099 - }
1100 -
1101 - // Migrate deprecated GPT-4o Mini and GPT-4.1 Mini to GPT-5 Mini
1102 - if (in_array($current_model, array('gpt-4o-mini', 'gpt-4.1-mini'), true)) {
1103 - $options['model'] = 'gpt-5-mini';
1104 - $migrated = true;
1105 - $migration_message = sprintf(
1106 - 'Your chatbot model has been automatically updated from %s to GPT-5 Mini due to OpenAI deprecating GPT-4 series models.',
1107 - $current_model
1108 - );
1109 - }
1110 -
1111 - // Migrate retired DeepSeek ids to DeepSeek V4 Flash — the vendor removed
1112 - // deepseek-chat and deepseek-reasoner on 2026-07-24 (hard cutoff, every
1113 - // request 400s). V4 Flash is DeepSeek's designated successor for the
1114 - // legacy deepseek-chat alias.
1115 - if (in_array($current_model, array('deepseek-chat', 'deepseek-reasoner'), true)) {
1116 - $options['model'] = 'deepseek-v4-flash';
1117 - $migrated = true;
1118 - $migration_message = sprintf(
1119 - 'Your chatbot model has been automatically updated from %s to DeepSeek V4 Flash because DeepSeek retired its older API models on July 24, 2026.',
1120 - $current_model
1121 - );
1122 - }
1123 -
1124 - if ($migrated) {
447 +
448 + // Check if model is set and is the deprecated Claude 3.5 Sonnet
449 + if (isset($options['model']) && $options['model'] === 'claude-3-5-sonnet-20241022') {
450 + // Update to Claude 3.7 Sonnet (the replacement model)
451 + $options['model'] = 'claude-3-7-sonnet-20250219';
1125 452 update_option('mxchat_options', $options);
453 +
454 + // Set a flag to show admin notice
1126 455 update_option('mxchat_model_migrated_notice', true);
1127 - update_option('mxchat_model_migration_message', $migration_message);
456 +
457 + //error_log('MxChat: Migrated deprecated Claude 3.5 Sonnet to Claude 3.7 Sonnet');
1128 458 }
1129 459 }
1130 460
1131 461 /**
@@ -1132,60 +462,20 @@
1132 462 * Show admin notice after model migration
1133 463 */
1134 464 function mxchat_show_migration_notice() {
1135 465 if (get_option('mxchat_model_migrated_notice')) {
1136 - $migration_message = get_option('mxchat_model_migration_message', __('Your chatbot model has been automatically updated due to a model deprecation.', 'mxchat'));
1137 466 ?>
1138 467 <div class="notice notice-info is-dismissible">
1139 468 <p>
1140 469 <strong><?php esc_html_e('MxChat Model Updated', 'mxchat'); ?></strong><br>
1141 - <?php echo esc_html($migration_message); ?>
470 + <?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'); ?>
1142 471 </p>
1143 472 </div>
1144 473 <?php
1145 474 delete_option('mxchat_model_migrated_notice');
1146 - delete_option('mxchat_model_migration_message');
1147 475 }
1148 476 }
1149 477
1150 -/**
1151 - * Persistent admin notice when the provider rejected the configured model
1152 - * (model_not_found / no access). Set by mxchat_friendly_chat_error() in the
1153 - * integrator whenever a chat request fails on a model-access error — including
1154 - * requests from anonymous visitors, which is the case that otherwise stays
1155 - * invisible to the site owner for weeks (plan e46b8f).
1156 - *
1157 - * Deleted after render so it re-arms on the next failed chat: the notice keeps
1158 - * reappearing until the model is fixed, then stops on its own.
1159 - */
1160 -function mxchat_show_model_access_notice() {
1161 - if (!current_user_can('manage_options')) {
1162 - return;
1163 - }
1164 - $notice = get_option('mxchat_model_access_notice');
1165 - if (!is_array($notice) || empty($notice['model'])) {
1166 - return;
1167 - }
1168 - $settings_url = admin_url('admin.php?page=mxchat-max');
1169 - ?>
1170 - <div class="notice notice-error is-dismissible">
1171 - <p>
1172 - <strong><?php esc_html_e('MxChat: your AI model is being rejected by the provider', 'mxchat'); ?></strong><br>
1173 - <?php
1174 - printf(
1175 - /* translators: 1: model id, 2: provider name */
1176 - esc_html__('Chat requests using the model "%1$s" are failing because %2$s reports it as unavailable on your API key (it may have been retired). Visitors may be seeing errors instead of replies.', 'mxchat'),
1177 - esc_html($notice['model']),
1178 - esc_html(!empty($notice['provider']) ? $notice['provider'] : __('the AI provider', 'mxchat'))
1179 - );
1180 - ?>
1181 - <a href="<?php echo esc_url($settings_url); ?>"><?php esc_html_e('Choose a different model in MxChat Settings', 'mxchat'); ?></a>
1182 - </p>
1183 - </div>
1184 - <?php
1185 - delete_option('mxchat_model_access_notice');
1186 -}
1187 -
1188 478 function mxchat_activate() {
1189 479 global $wpdb;
1190 480 $charset_collate = $wpdb->get_charset_collate();
1191 481
@@ -1193,12 +483,8 @@
1193 483
1194 484 // Create chat transcripts table with improved function
1195 485 mxchat_create_chat_transcripts_table();
1196 486
1197 - // Per-session state table (b64b77). Activation can run before
1198 - // plugins_loaded has included the class files, so require it directly.
1199 - mxchat_create_sessions_table();
1200 -
1201 487 // System Prompt Content Table - UPDATED: Use TEXT for url and source_url columns
1202 488 $system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
1203 489 $sql_system_prompt = "CREATE TABLE $system_prompt_table (
1204 490 id MEDIUMINT(9) NOT NULL AUTO_INCREMENT,
@@ -1226,26 +512,13 @@
1226 512 enabled_bots LONGTEXT DEFAULT NULL,
1227 513 PRIMARY KEY (id)
1228 514 ) $charset_collate;";
1229 515
1230 - // Individual Intent Phrases Table - each phrase gets its own embedding vector
1231 - $intent_phrases_table = $wpdb->prefix . 'mxchat_intent_phrases';
1232 - $sql_intent_phrases_table = "CREATE TABLE $intent_phrases_table (
1233 - id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
1234 - intent_id BIGINT(20) UNSIGNED NOT NULL,
1235 - phrase TEXT NOT NULL,
1236 - embedding_vector LONGTEXT NOT NULL,
1237 - created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
1238 - PRIMARY KEY (id),
1239 - KEY intent_id (intent_id)
1240 - ) $charset_collate;";
1241 -
1242 516 require_once ABSPATH . 'wp-admin/includes/upgrade.php';
1243 517
1244 518 // Create other tables
1245 519 dbDelta($sql_system_prompt);
1246 520 dbDelta($sql_intents_table);
1247 - dbDelta($sql_intent_phrases_table);
1248 521
1249 522 // Create URL click tracking table
1250 523 mxchat_create_url_clicks_table();
1251 524
@@ -1254,14 +527,8 @@
1254 527
1255 528 // NEW 2.5.2: Create queue processing tables
1256 529 mxchat_create_queue_tables();
1257 530
1258 - // Create transcript translations table
1259 - mxchat_create_translations_table();
1260 -
1261 - // Create per-session satisfaction ratings table (v3.2.6)
1262 - mxchat_create_session_ratings_table();
1263 -
1264 531 // Ensure additional columns in system prompt table
1265 532 $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
1266 533 if (!empty($existing_system_columns)) {
1267 534 $existing_system_column_names = array_column($existing_system_columns, 'Field');
@@ -1304,17 +571,13 @@
1304 571
1305 572 // Run migration for existing installations
1306 573 mxchat_migrate_pinecone_roles_add_bot_id();
1307 574
1308 - // 3.2.4: Backfill active embedding model option (replaces 3.2.3 column-based tracking)
1309 - mxchat_backfill_active_embedding_model();
1310 -
1311 575 // Setup cron jobs
1312 576 mxchat_setup_cron_jobs();
1313 577
1314 - // Update version (stable base version — never the dev time()-suffixed one,
1315 - // or the check_for_update comparison would churn every request)
1316 - update_option('mxchat_plugin_version', MXCHAT_BASE_VERSION);
578 + // Update version
579 + update_option('mxchat_plugin_version', MXCHAT_VERSION);
1317 580
1318 581 //error_log("MxChat: Activation function completed");
1319 582 }
1320 583
@@ -1329,35 +592,28 @@
1329 592 if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
1330 593 // Set flag to use fallback system
1331 594 update_option('mxchat_use_fallback_rate_limits', true);
1332 595 update_option('mxchat_next_rate_limit_check', time() + 3600);
1333 - // Deliberately NO early return (plan-bc08a6): transcript cleanup below
1334 - // must still be scheduled. DISABLE_WP_CRON only changes HOW cron events
1335 - // execute (a server-side runner hitting wp-cron.php instead of loopback
1336 - // spawns) — scheduling still just writes the cron option. The old early
1337 - // return here meant a deactivate/reactivate cycle on a DISABLE_WP_CRON
1338 - // site permanently lost the transcript cleanup event while the retention
1339 - // setting still claimed to be active.
596 + return;
597 + }
598 +
599 + // Schedule the rate limit reset cron job
600 + $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
601 +
602 + if ($result === false) {
603 + // Fallback if scheduling fails
604 + update_option('mxchat_use_fallback_rate_limits', true);
605 + update_option('mxchat_next_rate_limit_check', time() + 3600);
1340 606 } else {
1341 - // Schedule the rate limit reset cron job
1342 - $result = wp_schedule_event(time() + 300, 'hourly', 'mxchat_reset_rate_limits');
1343 -
1344 - if ($result === false) {
1345 - // Fallback if scheduling fails
1346 - update_option('mxchat_use_fallback_rate_limits', true);
1347 - update_option('mxchat_next_rate_limit_check', time() + 3600);
1348 - } else {
1349 - // Clear fallback flags if cron scheduling succeeded
1350 - delete_option('mxchat_use_fallback_rate_limits');
1351 - }
607 + // Clear fallback flags if cron scheduling succeeded
608 + delete_option('mxchat_use_fallback_rate_limits');
1352 609 }
1353 -
1354 - // Schedule transcript cleanup if configured (bucket dropdown OR custom retention-days > 0)
610 +
611 + // Schedule transcript cleanup if configured
1355 612 $transcript_options = get_option('mxchat_transcripts_options', array());
1356 613 $cleanup_interval = isset($transcript_options['mxchat_auto_delete_transcripts']) ? $transcript_options['mxchat_auto_delete_transcripts'] : 'never';
1357 - $custom_retention = isset($transcript_options['mxchat_retention_days']) ? (int) $transcript_options['mxchat_retention_days'] : 0;
1358 -
1359 - if ($cleanup_interval !== 'never' || $custom_retention > 0) {
614 +
615 + if ($cleanup_interval !== 'never') {
1360 616 // Check if not already scheduled
1361 617 if (!wp_next_scheduled('mxchat_cleanup_old_transcripts')) {
1362 618 // Schedule to run daily at 3 AM
1363 619 $next_run = strtotime('tomorrow 3:00 AM');
@@ -1373,9 +629,8 @@
1373 629 // Clear scheduled cron jobs
1374 630 wp_clear_scheduled_hook('mxchat_reset_rate_limits');
1375 631 wp_clear_scheduled_hook('mxchat_cleanup_old_transcripts');
1376 632 wp_clear_scheduled_hook('mxchat_send_delayed_transcript');
1377 - wp_clear_scheduled_hook('mxchat_model_liveness_check');
1378 633
1379 634 // Clear fallback options
1380 635 delete_option('mxchat_use_fallback_rate_limits');
1381 636 delete_option('mxchat_next_rate_limit_check');
@@ -1395,25 +650,17 @@
1395 650 return;
1396 651 }
1397 652
1398 653 $next_check = get_option('mxchat_next_rate_limit_check', 0);
1399 -
654 +
1400 655 if (time() >= $next_check) {
1401 - // Reuse the bootstrap's integrator — mxchat_init() creates the global on
1402 - // plugins_loaded (before this init-priority-5 callback), so it's always set
1403 - // here. Constructing a second MxChat_Integrator just to call one method
1404 - // re-registers every hook the plugin has (ajax pairs, wp_footer loader,
1405 - // rest_api_init, admin_init guard) on a duplicate instance for the rest of
1406 - // the request. Defensive construction only if the global is somehow unset.
1407 - // NOTE: MxChat_Integrator::check_fallback_rate_limits() is a second
1408 - // implementation of this same check — if either changes, change both.
1409 - global $mxchat_integrator;
1410 - $integrator = ($mxchat_integrator instanceof MxChat_Integrator)
1411 - ? $mxchat_integrator
1412 - : (class_exists('MxChat_Integrator') ? new MxChat_Integrator() : null);
1413 - if ($integrator && method_exists($integrator, 'mxchat_reset_rate_limits')) {
1414 - $integrator->mxchat_reset_rate_limits();
1415 - update_option('mxchat_next_rate_limit_check', time() + 3600);
656 + // Only run reset if the MxChat_Integrator class exists
657 + if (class_exists('MxChat_Integrator')) {
658 + $integrator = new MxChat_Integrator();
659 + if (method_exists($integrator, 'mxchat_reset_rate_limits')) {
660 + $integrator->mxchat_reset_rate_limits();
661 + update_option('mxchat_next_rate_limit_check', time() + 3600);
662 + }
1416 663 }
1417 664 }
1418 665 }
1419 666
@@ -1425,9 +672,9 @@
1425 672 global $wpdb;
1426 673
1427 674 try {
1428 675 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1429 - $plugin_version = MXCHAT_BASE_VERSION;
676 + $plugin_version = MXCHAT_VERSION;
1430 677
1431 678 // Always ensure critical tables exist (even if version matches)
1432 679 // This handles manual table deletion or fresh installs
1433 680 $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
@@ -1432,16 +679,12 @@
1432 679 // This handles manual table deletion or fresh installs
1433 680 $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1434 681 $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
1435 682
1436 - $sessions_table = $wpdb->prefix . 'mxchat_sessions';
1437 -
1438 683 $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$chat_table'") === $chat_table;
1439 684 $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
1440 - $sessions_exists = get_option('mxchat_session_store_ready') === '1'
1441 - || $wpdb->get_var("SHOW TABLES LIKE '$sessions_table'") === $sessions_table;
1442 -
1443 - if (!$chat_exists || !$queue_exists || !$sessions_exists) {
685 +
686 + if (!$chat_exists || !$queue_exists) {
1444 687 //error_log("MxChat: Critical tables missing, running activation");
1445 688 mxchat_activate();
1446 689 }
1447 690
@@ -1447,14 +690,11 @@
1447 690
1448 691 // Version-specific migrations
1449 692 if ($current_version !== $plugin_version) {
1450 693 //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
1451 -
694 +
1452 695 // Run live agent update BEFORE updating the stored version
1453 696 mxchat_handle_live_agent_update();
1454 -
1455 - // Run theme migration notice for 3.0.1 (AI theme CSS structure changes)
1456 - mxchat_handle_theme_migration_notice();
1457 697
1458 698 // Run role restriction migration for 2.4.1
1459 699 if (version_compare($current_version, '2.4.1', '<')) {
1460 700 mxchat_add_role_restriction_column();
@@ -1475,77 +715,9 @@
1475 715 mxchat_create_queue_tables();
1476 716 mxchat_fix_url_column_size(); // NEW: Fix URL column size for long URLs
1477 717 //error_log("MxChat: Queue tables created and URL columns updated for upgrade to 2.5.2");
1478 718 }
1479 -
1480 - // 2.6.0: Ensure rag_context column exists for retrieved documents feature
1481 - if (version_compare($current_version, '2.6.0', '<')) {
1482 - $chat_table = $wpdb->prefix . 'mxchat_chat_transcripts';
1483 - mxchat_ensure_all_columns($chat_table);
1484 - //error_log("MxChat: rag_context column migration for 2.6.0");
1485 - }
1486 -
1487 - // 3.0.5: Migrate deprecated Gemini embedding model
1488 - if (version_compare($current_version, '3.0.5', '<')) {
1489 - mxchat_migrate_gemini_embedding_model();
1490 - }
1491 -
1492 - // 3.0.6: Migrate deprecated OpenAI and Claude models
1493 - if (version_compare($current_version, '3.0.6', '<')) {
1494 - mxchat_migrate_deprecated_models();
1495 - }
1496 -
1497 - // 3.1.2: Convert chat transcripts table to utf8mb4 for emoji support
1498 - if (version_compare($current_version, '3.1.2', '<')) {
1499 - mxchat_migrate_transcripts_charset();
1500 - }
1501 -
1502 - // 3.1.7: Clean up stale shared session email/name entries
1503 - if (version_compare($current_version, '3.1.7', '<')) {
1504 - delete_option('mxchat_email_null');
1505 - delete_option('mxchat_name_null');
1506 - }
1507 -
1508 - // 3.2.4: Backfill active embedding model option for the warning UI
1509 - // (replaces the per-row column tracking from 3.2.3, which was reverted)
1510 - if (version_compare($current_version, '3.2.4', '<')) {
1511 - mxchat_backfill_active_embedding_model();
1512 - }
1513 -
1514 - // 3.2.15: Migrate retired DeepSeek ids (deepseek-chat / deepseek-reasoner
1515 - // were shut off at the vendor on 2026-07-24). The function is idempotent —
1516 - // it only rewrites models on its deprecation lists.
1517 - if (version_compare($current_version, '3.2.15', '<')) {
1518 - mxchat_migrate_deprecated_models();
1519 - }
1520 -
1521 - // 3.2.16: Migrate OpenAI ids retiring 2026-08-10 (gpt-5.1-chat-latest /
1522 - // gpt-5.3-chat-latest → gpt-5.6-sol per OpenAI's deprecations page).
1523 - // Idempotent — only rewrites models on the deprecation lists (e46b8f).
1524 - if (version_compare($current_version, '3.2.16', '<')) {
1525 - mxchat_migrate_deprecated_models();
1526 - }
1527 -
1528 - // 3.2.17: Credential options must not autoload (af2400) — the two
1529 - // Pinecone-secret-holding rows were in alloptions, i.e. read into
1530 - // memory on every request including anonymous page views. Idempotent.
1531 - // Also carry the import modal's remembered ACF→PDF checkbox state
1532 - // into the new install-level option (11720c).
1533 - if (version_compare($current_version, '3.2.17', '<')) {
1534 - mxchat_fix_credential_option_autoload();
1535 - mxchat_migrate_acf_pdf_extraction_option();
1536 - }
1537 -
1538 - // 3.2.19: Claude Opus 4.1 retired Aug 5, 2026 — auto-move stranded
1539 - // sites (and the older tiers on the migration's lists) per the
1540 - // changelog's promise. Idempotent — only rewrites models on the
1541 - // deprecation lists. Without a gate at this release's version,
1542 - // nothing calls the migration for 3.2.18 upgraders (plan a5a598;
1543 - // the gate value must equal the version this block ships in).
1544 - if (version_compare($current_version, '3.2.19', '<')) {
1545 - mxchat_migrate_deprecated_models();
1546 - }
1547 -
719 +
1548 720 // Run full activation to ensure everything is up to date
1549 721 mxchat_activate();
1550 722
1551 723 // Run migration functions
@@ -1550,11 +722,12 @@
1550 722
1551 723 // Run migration functions
1552 724 mxchat_migrate_live_agent_status();
1553 725
1554 - // (The 2.1.8 orphaned-history reconciliation sweep is gone —
1555 - // 3.2.19's mxchat_history_backlog_* drain supersedes it, and it
1556 - // self-arms without a version gate: plan 839c4c.)
726 + // Add the cleanup function for version 2.1.8
727 + if (version_compare($current_version, '2.1.8', '<')) {
728 + $deleted = mxchat_cleanup_orphaned_chat_history();
729 + }
1557 730
1558 731 // Update version LAST
1559 732 update_option('mxchat_plugin_version', $plugin_version);
1560 733
@@ -1567,67 +740,8 @@
1567 740 }
1568 741 }
1569 742
1570 743 /**
1571 - * Credential options must never enter the autoloaded alloptions set.
1572 - * mxchat_prompts_options and mxchat_pinecone_addon_options can hold the
1573 - * Pinecone API secret; mxchat_options already stores its keys with autoload
1574 - * off and these two must match it. The filter covers every future
1575 - * add_option()/update_option() that creates the row — Settings API saves
1576 - * through options.php and WP-CLI included — on WP 6.6+; older cores are
1577 - * covered by the explicit autoload arguments at the plugin's own write
1578 - * sites plus the one-time migration below.
1579 - */
1580 -add_filter('wp_default_autoload_value', 'mxchat_credential_option_autoload_value', 10, 2);
1581 -function mxchat_credential_option_autoload_value($autoload, $option) {
1582 - if (in_array($option, array('mxchat_prompts_options', 'mxchat_pinecone_addon_options'), true)) {
1583 - return false;
1584 - }
1585 - return $autoload;
1586 -}
1587 -
1588 -/**
1589 - * One-time upgrade migration: flip the autoload flag on credential option
1590 - * rows that existing installs are already carrying autoloaded. Includes
1591 - * mxchat_adv_api_token (Advanced Content bearer token) — harmless no-op
1592 - * when that add-on is not installed, since missing rows simply don't match.
1593 - */
1594 -function mxchat_fix_credential_option_autoload() {
1595 - $keys = array('mxchat_prompts_options', 'mxchat_pinecone_addon_options', 'mxchat_adv_api_token');
1596 - if (function_exists('wp_set_option_autoload_values')) {
1597 - wp_set_option_autoload_values(array_fill_keys($keys, false));
1598 - return;
1599 - }
1600 - // Pre-WP-6.4 fallback: direct flip + cache invalidation.
1601 - global $wpdb;
1602 - $placeholders = implode(',', array_fill(0, count($keys), '%s'));
1603 - $wpdb->query($wpdb->prepare("UPDATE {$wpdb->options} SET autoload = 'no' WHERE option_name IN ($placeholders)", $keys));
1604 - wp_cache_delete('alloptions', 'options');
1605 - foreach ($keys as $key) {
1606 - wp_cache_delete($key, 'options');
1607 - }
1608 -}
1609 -
1610 -/**
1611 - * One-time carry of the import modal's remembered ACF→PDF checkbox state
1612 - * (mxchat_options['acf_pdf_extract_default'], written per-import until 3.2.16)
1613 - * into the new install-level option mxchat_acf_pdf_extraction (plan 11720c).
1614 - * Fresh installs and installs that never touched the checkbox default OFF,
1615 - * matching the setting's own "recommended only if…" guidance.
1616 - */
1617 -function mxchat_migrate_acf_pdf_extraction_option() {
1618 - if (get_option('mxchat_acf_pdf_extraction', null) !== null) {
1619 - return; // already set — never overwrite an owner's choice
1620 - }
1621 - $mxchat_options = get_option('mxchat_options', array());
1622 - if (is_array($mxchat_options) && array_key_exists('acf_pdf_extract_default', $mxchat_options)) {
1623 - update_option('mxchat_acf_pdf_extraction', !empty($mxchat_options['acf_pdf_extract_default']) ? '1' : '0', false);
1624 - unset($mxchat_options['acf_pdf_extract_default']);
1625 - update_option('mxchat_options', $mxchat_options);
1626 - }
1627 -}
1628 -
1629 -/**
1630 744 * Ensure tables exist on every admin load for fresh installations
1631 745 * This is a safety net for cases where activation hook doesn't fire
1632 746 */
1633 747 function mxchat_ensure_tables_exist() {
@@ -1647,16 +761,12 @@
1647 761
1648 762 $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
1649 763 $queue_table = $wpdb->prefix . 'mxchat_processing_queue';
1650 764
1651 - $sessions_table = $wpdb->prefix . 'mxchat_sessions';
1652 -
1653 765 $chat_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
1654 766 $queue_exists = $wpdb->get_var("SHOW TABLES LIKE '$queue_table'") === $queue_table;
1655 - $sessions_exists = get_option('mxchat_session_store_ready') !== false
1656 - || $wpdb->get_var("SHOW TABLES LIKE '$sessions_table'") === $sessions_table;
1657 -
1658 - if (!$chat_exists || !$queue_exists || !$sessions_exists) {
767 +
768 + if (!$chat_exists || !$queue_exists) {
1659 769 //error_log("MxChat: Tables missing on admin load, running activation");
1660 770 mxchat_activate();
1661 771 }
1662 772 }
@@ -1661,116 +771,49 @@
1661 771 }
1662 772 }
1663 773
1664 774 /**
1665 - * One-shot cleanup of legacy mxchat_history_<sid> option rows (plan 839c4c).
1666 - *
1667 - * 3.2.19 deduplicated per-session chat history into the transcripts table
1668 - * (which already held a superset of every option copy measured), so nothing
1669 - * writes these options any more — but an upgraded install still carries one
1670 - * per session, at up to 64 KB a row (462 rows measured on one production
1671 - * install). This drain replaces the old mxchat_cleanup_orphaned_chat_history()
1672 - * reconciliation sweep, which existed only because there were two copies to
1673 - * reconcile.
1674 - *
1675 - * b64b77 pattern throughout: an option_id bookmark that only moves forward
1676 - * (a crash mid-batch re-processes at most one batch), delete_option() per row
1677 - * so the object + notoptions caches stay coherent, batches drained off
1678 - * non-AJAX admin_init plus the session-store maintenance cron. Once the
1679 - * backlog is gone the state marks done and every later call is one cached
1680 - * option read.
775 + * Clean up orphaned chat history options from the wp_options table
776 + * @return int Number of options deleted
1681 777 */
1682 -function mxchat_history_backlog_state() {
1683 - // The state option name MUST NOT start with 'mxchat_history_' — the drain
1684 - // deletes everything matching that prefix, and a state option inside the
1685 - // pattern gets eaten by its own drain (caught by the 839c4c rig: batches
1686 - // ran 2,2,2,1 instead of 2,2,1 because the bookmark row was being deleted
1687 - // and re-created every pass).
1688 - $state = get_option('mxchat_legacy_history_cleanup', array());
1689 - if (!is_array($state)) {
1690 - $state = array();
1691 - }
1692 -
1693 - return wp_parse_args($state, array(
1694 - 'done' => false,
1695 - 'last_option_id' => 0,
1696 - 'deleted' => 0,
1697 - ));
1698 -}
1699 -
1700 -/**
1701 - * Delete one batch of legacy history options.
1702 - *
1703 - * @param int $batch Rows per pass — capped small; these can be 64 KB rows.
1704 - * @return int Option rows deleted in this pass.
1705 - */
1706 -function mxchat_history_backlog_batch($batch = 200) {
778 +function mxchat_cleanup_orphaned_chat_history() {
1707 779 global $wpdb;
780 + $count = 0;
1708 781
1709 - $state = mxchat_history_backlog_state();
1710 - if (!empty($state['done'])) {
1711 - return 0;
1712 - }
1713 -
1714 - $batch = max(1, (int) $batch);
1715 -
1716 - $rows = $wpdb->get_results(
1717 - $wpdb->prepare(
1718 - "SELECT option_id, option_name FROM {$wpdb->options}
1719 - WHERE option_id > %d AND option_name LIKE %s
1720 - ORDER BY option_id ASC LIMIT %d",
1721 - (int) $state['last_option_id'],
1722 - $wpdb->esc_like('mxchat_history_') . '%',
1723 - $batch
1724 - ),
1725 - ARRAY_A
782 + // Get all option keys that match our pattern
783 + $history_options = $wpdb->get_results(
784 + "SELECT option_name FROM {$wpdb->options}
785 + WHERE option_name LIKE 'mxchat_history_%'"
1726 786 );
1727 787
1728 - if (empty($rows)) {
1729 - $state['done'] = true;
1730 - update_option('mxchat_legacy_history_cleanup', $state, 'no');
1731 - return 0;
1732 - }
788 + if (!empty($history_options)) {
789 + foreach ($history_options as $option) {
790 + // Extract the session ID from the option name
791 + $session_id = str_replace('mxchat_history_', '', $option->option_name);
1733 792
1734 - foreach ($rows as $row) {
1735 - $state['last_option_id'] = max((int) $state['last_option_id'], (int) $row['option_id']);
1736 - delete_option($row['option_name']);
1737 - $state['deleted'] = (int) $state['deleted'] + 1;
1738 - }
793 + // Check if this session still exists in the custom table
794 + $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
795 + $exists = $wpdb->get_var(
796 + $wpdb->prepare(
797 + "SELECT COUNT(*) FROM {$table_name} WHERE session_id = %s",
798 + $session_id
799 + )
800 + );
1739 801
1740 - if (count($rows) < $batch) {
1741 - $state['done'] = true;
1742 - }
1743 -
1744 - update_option('mxchat_legacy_history_cleanup', $state, 'no');
1745 -
1746 - return count($rows);
1747 -}
1748 -
1749 -/** One batch per admin page load until drained. */
1750 -function mxchat_history_backlog_drain() {
1751 - mxchat_history_backlog_batch();
1752 -}
1753 -
1754 -/** Cron leg: drain faster, same cap per batch. */
1755 -function mxchat_history_backlog_drain_cron() {
1756 - for ($i = 0; $i < 10; $i++) {
1757 - if (mxchat_history_backlog_batch() === 0) {
1758 - break;
802 + // If session doesn't exist in the main table, delete the option
803 + if ($exists == 0) {
804 + delete_option($option->option_name);
805 + // Also delete related metadata
806 + delete_option("mxchat_email_{$session_id}");
807 + delete_option("mxchat_name_{$session_id}");
808 + delete_option("mxchat_agent_name_{$session_id}");
809 + $count++;
810 + }
1759 811 }
1760 812 }
1761 -}
1762 813
1763 -// wp_doing_ajax() guard is load-bearing, not defensive (b64b77's shipped-and-
1764 -// caught defect): admin-ajax.php fires admin_init too, and the chat widget's
1765 -// message endpoint is an admin-ajax action — without the guard an anonymous
1766 -// visitor would pay for a delete batch inside their own chat request.
1767 -if (!wp_doing_ajax()) {
1768 - add_action('admin_init', 'mxchat_history_backlog_drain', 21);
814 + return $count;
1769 815 }
1770 -// Belt for installs whose admin is rarely visited: ride the session store's
1771 -// existing daily maintenance event rather than scheduling another.
1772 -add_action('mxchat_session_store_maintenance', 'mxchat_history_backlog_drain_cron');
1773 816
1774 817 function mxchat_migrate_live_agent_status() {
1775 818 $options = get_option('mxchat_options', []);
1776 819
@@ -1806,59 +849,31 @@
1806 849 function mxchat_handle_live_agent_update() {
1807 850 // Get the CURRENT stored version (before it gets updated)
1808 851 $current_version = get_option('mxchat_plugin_version', '0.0.0');
1809 852 $new_version = '2.2.2';
1810 -
853 +
1811 854 // Only run this once for the update to 2.2.2
1812 855 $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
1813 -
856 +
1814 857 // Check if we're upgrading TO 2.2.2 and haven't handled this yet
1815 858 if (version_compare($current_version, $new_version, '<') && !$update_handled) {
1816 859 $options = get_option('mxchat_options', array());
1817 -
860 +
1818 861 // Check if live agent was previously enabled
1819 862 if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
1820 863 // Disable live agent
1821 864 $options['live_agent_status'] = 'off';
1822 865 update_option('mxchat_options', $options);
1823 -
866 +
1824 867 // Set flag to show the notification banner
1825 868 update_option('mxchat_show_live_agent_disabled_notice', true);
1826 869 }
1827 -
870 +
1828 871 // Mark this update as handled
1829 872 update_option('mxchat_live_agent_update_2_2_2_handled', true);
1830 873 }
1831 874 }
1832 875
1833 -/**
1834 - * Handle theme migration notice for version 3.0.1
1835 - * Shows a dismissible notice to Pro users about migrating AI-generated themes
1836 - */
1837 -function mxchat_handle_theme_migration_notice() {
1838 - // Get the CURRENT stored version (before it gets updated)
1839 - $current_version = get_option('mxchat_plugin_version', '0.0.0');
1840 - $target_version = '3.0.1';
1841 -
1842 - // Only run this once for the update to 3.0.1
1843 - $update_handled = get_option('mxchat_theme_migration_update_3_0_1_handled', false);
1844 -
1845 - // Check if we're upgrading TO 3.0.1 and haven't handled this yet
1846 - if (version_compare($current_version, $target_version, '<') && !$update_handled) {
1847 - // Check if Pro is activated - only show to Pro users
1848 - $license_status = get_option('mxchat_license_status', 'inactive');
1849 - $is_pro = ($license_status === 'active');
1850 -
1851 - if ($is_pro) {
1852 - // Set flag to show the theme migration notification banner
1853 - update_option('mxchat_show_theme_migration_notice', true);
1854 - }
1855 -
1856 - // Mark this update as handled (whether Pro or not)
1857 - update_option('mxchat_theme_migration_update_3_0_1_handled', true);
1858 - }
1859 -}
1860 -
1861 876 // Initialize plugin safely
1862 877 function mxchat_init() {
1863 878 // Include all class files first
1864 879 mxchat_include_classes();
@@ -1873,9 +888,8 @@
1873 888 add_action('init', 'mxchat_check_fallback_rate_limits', 5);
1874 889
1875 890 // Add migration notice hook
1876 891 add_action('admin_notices', 'mxchat_show_migration_notice');
1877 - add_action('admin_notices', 'mxchat_show_model_access_notice');
1878 892
1879 893 // Initialize classes with error handling
1880 894 try {
1881 895 // Initialize admin classes
@@ -1891,32 +905,10 @@
1891 905 // Initialize meta box class
1892 906 if (class_exists('MxChat_Meta_Box')) {
1893 907 new MxChat_Meta_Box();
1894 908 }
1895 -
1896 909 }
1897 -
1898 - // Initialize content generator globally — it registers wp_head hook
1899 - // for frontend CSS injection, plus wp_ajax_ hooks for admin.
1900 - if (class_exists('MxChat_Content_Generator')) {
1901 - new MxChat_Content_Generator();
1902 - }
1903 -
1904 - // Initialize cache purge globally — settings writes can happen on any
1905 - // request type (admin screens, admin-ajax autosave, wp-cli), and the
1906 - // deferred-purge cron event fires on front-end requests.
1907 - if (class_exists('MxChat_Cache_Purge')) {
1908 - MxChat_Cache_Purge::init();
1909 - }
1910 -
1911 - // Initialize REST API globally — endpoints must be registered on
1912 - // every request (admin and frontend) so they're reachable via /wp-json/.
1913 - // Endpoints are auth-gated and locked until the site owner generates
1914 - // a token in MxChat → API Access.
1915 - if (class_exists('MxChat_Rest_Api')) {
1916 - new MxChat_Rest_Api();
1917 - }
1918 -
910 +
1919 911 // Initialize public classes
1920 912 if (class_exists('MxChat_Public')) {
1921 913 $mxchat_public = new MxChat_Public();
1922 914 }
@@ -1960,57 +952,10 @@
1960 952 $checked = true;
1961 953
1962 954 mxchat_migrate_pinecone_roles_add_bot_id();
1963 955 mxchat_migrate_add_content_type_column();
1964 - mxchat_migrate_add_translations_table();
1965 - mxchat_migrate_add_session_ratings_table();
1966 956 }
1967 957
1968 -/**
1969 - * Migration: Create per-session satisfaction ratings table (v3.2.6)
1970 - * For users upgrading from versions before 3.2.6
1971 - */
1972 -function mxchat_migrate_add_session_ratings_table() {
1973 - $migration_key = 'mxchat_session_ratings_table_created';
1974 - if (get_option($migration_key)) {
1975 - return;
1976 - }
1977 - mxchat_create_session_ratings_table();
1978 - update_option($migration_key, '3.2.6');
1979 -}
1980 -
1981 -/**
1982 - * Migration: Create transcript translations table (v3.0.4)
1983 - * For users upgrading from versions before 3.0.4
1984 - */
1985 -function mxchat_migrate_add_translations_table() {
1986 - $migration_key = 'mxchat_translations_table_created';
1987 -
1988 - // Check if migration already ran
1989 - if (get_option($migration_key)) {
1990 - return;
1991 - }
1992 -
1993 - // Create the translations table
1994 - mxchat_create_translations_table();
1995 -
1996 - // Mark migration as complete
1997 - update_option($migration_key, '3.0.4');
1998 -}
1999 -
2000 -/**
2001 - * Migration: Update deprecated Gemini embedding model (v3.0.5)
2002 - * Updates gemini-embedding-exp-03-07 to gemini-embedding-001 for users who had it selected
2003 - */
2004 -function mxchat_migrate_gemini_embedding_model() {
2005 - $options = get_option('mxchat_options', array());
2006 -
2007 - if (isset($options['embedding_model']) && $options['embedding_model'] === 'gemini-embedding-exp-03-07') {
2008 - $options['embedding_model'] = 'gemini-embedding-001';
2009 - update_option('mxchat_options', $options);
2010 - }
2011 -}
2012 -
2013 958 // Register activation hook
2014 959 register_activation_hook(__FILE__, 'mxchat_activate');
2015 960
2016 961 // Add cron schedule
@@ -2022,67 +967,5 @@
2022 967 return $schedules;
2023 968 });
2024 969
2025 970 // Register deactivation hook
2026 -register_deactivation_hook(__FILE__, 'mxchat_deactivate');
2027 -
2028 -/**
2029 - * Per-session satisfaction rating: AJAX save handler (v3.2.6).
2030 - * Records one 👍/👎 + optional feedback per chat session. The UNIQUE KEY on
2031 - * session_id makes this naturally idempotent — only the first rating per
2032 - * session is stored; duplicate POSTs are silent no-ops.
2033 - */
2034 -function mxchat_save_session_rating() {
2035 - global $wpdb;
2036 -
2037 - $session_id = isset($_POST['session_id']) ? MxChat_Utils::sanitize_session_id(wp_unslash($_POST['session_id'])) : '';
2038 - $bot_id = isset($_POST['bot_id']) ? sanitize_text_field(wp_unslash($_POST['bot_id'])) : 'default';
2039 - $rating_raw = isset($_POST['rating']) ? (int) $_POST['rating'] : 0;
2040 - $feedback = isset($_POST['feedback']) ? sanitize_textarea_field(wp_unslash($_POST['feedback'])) : '';
2041 -
2042 - if ($session_id === '' || ($rating_raw !== 1 && $rating_raw !== -1)) {
2043 - wp_send_json_error(array('message' => 'invalid_input'), 400);
2044 - }
2045 -
2046 - if (strlen($feedback) > 1000) {
2047 - $feedback = substr($feedback, 0, 1000);
2048 - }
2049 -
2050 - $table_name = $wpdb->prefix . 'mxchat_session_ratings';
2051 - $existing = $wpdb->get_var($wpdb->prepare(
2052 - "SELECT id FROM $table_name WHERE session_id = %s LIMIT 1",
2053 - $session_id
2054 - ));
2055 -
2056 - if ($existing) {
2057 - if ($feedback !== '') {
2058 - $wpdb->update(
2059 - $table_name,
2060 - array('rating_feedback' => $feedback),
2061 - array('id' => (int) $existing),
2062 - array('%s'),
2063 - array('%d')
2064 - );
2065 - }
2066 - wp_send_json_success(array('updated' => true));
2067 - }
2068 -
2069 - $inserted = $wpdb->insert(
2070 - $table_name,
2071 - array(
2072 - 'session_id' => $session_id,
2073 - 'bot_id' => $bot_id !== '' ? $bot_id : 'default',
2074 - 'rating_value' => $rating_raw,
2075 - 'rating_feedback' => $feedback !== '' ? $feedback : null,
2076 - 'created_at' => current_time('mysql'),
2077 - ),
2078 - array('%s', '%s', '%d', '%s', '%s')
2079 - );
2080 -
2081 - if ($inserted === false) {
2082 - wp_send_json_error(array('message' => 'db_insert_failed'), 500);
2083 - }
2084 -
2085 - wp_send_json_success(array('saved' => true));
2086 -}
2087 -add_action('wp_ajax_mxchat_save_rating', 'mxchat_save_session_rating');
2088 -add_action('wp_ajax_nopriv_mxchat_save_rating', 'mxchat_save_session_rating');
971 +register_deactivation_hook(__FILE__, 'mxchat_deactivate');