← All changes | mxchat-basic.php +579 -52 2.0.4 → 2.4.6 View file →

		@@ -1,9 +1,10 @@
1	1	<?php
2	2	/**
3	3	* Plugin Name: MxChat
	4	+ * Plugin URI: https://mxchat.ai/
4	5	* Description: AI chatbot for WordPress with OpenAI, Claude, xAI, DeepSeek, live agent, PDF uploads, WooCommerce, and training on website data.
5		- * Version: 2.0.4
	6	+ * Version: 2.4.6
6	7	* Author: MxChat
7	8	* Author URI: https://mxchat.ai
8	9	* License: GPLv2 or later
9	10	* License URI: https://www.gnu.org/licenses/gpl-2.0.html
		@@ -14,8 +15,10 @@
14	15	if (!defined('ABSPATH')) {
15	16	exit; // Exit if accessed directly.
16	17	}
17	18
	19	+// Define plugin version constant for asset versioning
	20	+define('MXCHAT_VERSION', '2.4.6');
18	21
19	22	function mxchat_load_textdomain() {
20	23	load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages');
21	24	}
		@@ -20,25 +23,72 @@
20	23	load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages');
21	24	}
22	25	add_action('plugins_loaded', 'mxchat_load_textdomain');
23	26
24		-// Include classes
25		-require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-integrator.php';
26		-require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-admin.php';
27		-require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-public.php';
28		-require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-utils.php';
29		-require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-user.php';
30		-require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-woocommerce.php';
31		-require_once plugin_dir_path(__FILE__) . 'includes/pdf-parser/alt_autoload.php';
32		-require_once plugin_dir_path(__FILE__) . 'includes/class-mxchat-word-handler.php';
	27	+// Include classes with error handling
	28	+function mxchat_include_classes() {
	29	+ $class_files = array(
	30	+ 'includes/class-mxchat-integrator.php',
	31	+ 'includes/class-mxchat-admin.php',
	32	+ 'includes/class-mxchat-public.php',
	33	+ 'includes/class-mxchat-utils.php',
	34	+ 'includes/class-mxchat-user.php',
	35	+ 'includes/class-mxchat-meta-box.php',
	36	+ 'includes/pdf-parser/alt_autoload.php',
	37	+ 'includes/class-mxchat-word-handler.php',
	38	+ 'admin/class-ajax-handler.php',
	39	+ 'admin/class-pinecone-manager.php',
	40	+ 'admin/class-knowledge-manager.php'
	41	+ );
33	42
34		-function mxchat_activate() {
	43	+ foreach ($class_files as $file) {
	44	+ $file_path = plugin_dir_path(__FILE__) . $file;
	45	+ if (file_exists($file_path)) {
	46	+ require_once $file_path;
	47	+ } else {
	48	+ //error_log('MxChat: Missing class file - ' . $file);
	49	+ }
	50	+ }
	51	+}
	52	+
	53	+/**
	54	+ * Create URL click tracking table
	55	+ */
	56	+function mxchat_create_url_clicks_table() {
35	57	global $wpdb;
	58	+
	59	+ $table_name = $wpdb->prefix . 'mxchat_url_clicks';
	60	+
36	61	$charset_collate = $wpdb->get_charset_collate();
	62	+
	63	+ $sql = "CREATE TABLE $table_name (
	64	+ id mediumint(9) NOT NULL AUTO_INCREMENT,
	65	+ session_id varchar(100) NOT NULL,
	66	+ clicked_url text NOT NULL,
	67	+ message_context text,
	68	+ click_timestamp datetime DEFAULT CURRENT_TIMESTAMP,
	69	+ user_ip varchar(45),
	70	+ user_agent text,
	71	+ PRIMARY KEY (id),
	72	+ KEY session_id (session_id),
	73	+ KEY click_timestamp (click_timestamp)
	74	+ ) $charset_collate;";
	75	+
	76	+ require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
	77	+ dbDelta($sql);
	78	+}
37	79
38		- // Chat Transcripts Table
39		- $chat_transcripts_table = $wpdb->prefix . 'mxchat_chat_transcripts';
40		- $sql_chat_transcripts = "CREATE TABLE $chat_transcripts_table (
	80	+/**
	81	+ * FIXED: Robust table creation and column management
	82	+ */
	83	+function mxchat_create_chat_transcripts_table() {
	84	+ global $wpdb;
	85	+
	86	+ $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
	87	+ $charset_collate = $wpdb->get_charset_collate();
	88	+
	89	+ // Create table with ALL columns including user_name from the start
	90	+ $sql = "CREATE TABLE $table_name (
41	91	id MEDIUMINT(9) NOT NULL AUTO_INCREMENT,
42	92	user_id MEDIUMINT(9) DEFAULT 0,
43	93	session_id VARCHAR(255) NOT NULL,
44	94	role VARCHAR(255) NOT NULL,
		@@ -43,12 +93,206 @@
43	93	session_id VARCHAR(255) NOT NULL,
44	94	role VARCHAR(255) NOT NULL,
45	95	message TEXT NOT NULL,
46	96	user_email VARCHAR(255) DEFAULT NULL,
	97	+ user_name VARCHAR(100) DEFAULT NULL,
	98	+ user_identifier VARCHAR(255) DEFAULT NULL,
	99	+ originating_page_url TEXT DEFAULT NULL,
	100	+ originating_page_title VARCHAR(500) DEFAULT NULL,
47	101	timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
48		- PRIMARY KEY (id)
	102	+ PRIMARY KEY (id),
	103	+ KEY session_id (session_id),
	104	+ KEY user_email (user_email),
	105	+ KEY timestamp (timestamp)
49	106	) $charset_collate;";
	107	+
	108	+ require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
	109	+ $result = dbDelta($sql);
	110	+
	111	+ // Log the result for debugging
	112	+ if (empty($result)) {
	113	+ //error_log("MxChat: dbDelta returned empty result for chat transcripts table");
	114	+ } else {
	115	+ //error_log("MxChat: dbDelta result: " . print_r($result, true));
	116	+ }
	117	+
	118	+ // IMPORTANT: Ensure all columns exist for existing installations
	119	+ mxchat_ensure_all_columns($table_name);
	120	+}
50	121
	122	+/**
	123	+ * Ensure all required columns exist (for upgrades)
	124	+ */
	125	+function mxchat_ensure_all_columns($table_name) {
	126	+ global $wpdb;
	127	+
	128	+ // First check if table exists
	129	+ $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
	130	+ if (!$table_exists) {
	131	+ //error_log("MxChat: Table $table_name does not exist, cannot add columns");
	132	+ return;
	133	+ }
	134	+
	135	+ // Define all required columns and their types
	136	+ $required_columns = [
	137	+ 'user_identifier' => 'VARCHAR(255) DEFAULT NULL',
	138	+ 'user_email' => 'VARCHAR(255) DEFAULT NULL',
	139	+ 'user_name' => 'VARCHAR(100) DEFAULT NULL',
	140	+ 'originating_page_url' => 'TEXT DEFAULT NULL',
	141	+ 'originating_page_title' => 'VARCHAR(500) DEFAULT NULL'
	142	+ ];
	143	+
	144	+ // Get existing columns
	145	+ $existing_columns = $wpdb->get_results("SHOW COLUMNS FROM $table_name");
	146	+ if (empty($existing_columns)) {
	147	+ //error_log("MxChat: Could not get columns for table $table_name");
	148	+ return;
	149	+ }
	150	+
	151	+ $existing_column_names = array_column($existing_columns, 'Field');
	152	+
	153	+ // Add missing columns
	154	+ foreach ($required_columns as $column_name => $column_definition) {
	155	+ if (!in_array($column_name, $existing_column_names)) {
	156	+ $alter_sql = "ALTER TABLE $table_name ADD COLUMN $column_name $column_definition";
	157	+ $result = $wpdb->query($alter_sql);
	158	+
	159	+ if ($result === false) {
	160	+ //error_log("MxChat: Failed to add column $column_name to $table_name. Error: " . $wpdb->last_error);
	161	+ } else {
	162	+ //error_log("MxChat: Successfully added column $column_name to $table_name");
	163	+ }
	164	+ }
	165	+ }
	166	+}
	167	+
	168	+/**
	169	+ * Add role restriction column to knowledge base table
	170	+ */
	171	+function mxchat_add_role_restriction_column() {
	172	+ global $wpdb;
	173	+ $table_name = $wpdb->prefix . 'mxchat_system_prompt_content';
	174	+
	175	+ // Check if table exists first
	176	+ $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
	177	+ if (!$table_exists) {
	178	+ //error_log("MxChat: System prompt content table does not exist, cannot add role_restriction column");
	179	+ return;
	180	+ }
	181	+
	182	+ // Check if column already exists
	183	+ $column_exists = $wpdb->get_results(
	184	+ $wpdb->prepare(
	185	+ "SHOW COLUMNS FROM {$table_name} LIKE %s",
	186	+ 'role_restriction'
	187	+ )
	188	+ );
	189	+
	190	+ if (empty($column_exists)) {
	191	+ $alter_sql = "ALTER TABLE {$table_name} ADD COLUMN role_restriction VARCHAR(50) DEFAULT 'public' AFTER source_url";
	192	+ $result = $wpdb->query($alter_sql);
	193	+
	194	+ if ($result === false) {
	195	+ //error_log("MxChat: Failed to add role_restriction column. Error: " . $wpdb->last_error);
	196	+ } else {
	197	+ //error_log("MxChat: Successfully added role_restriction column");
	198	+
	199	+ // Set all existing records to 'public' (everyone can access)
	200	+ $update_result = $wpdb->query(
	201	+ "UPDATE {$table_name}
	202	+ SET role_restriction = 'public'
	203	+ WHERE role_restriction IS NULL OR role_restriction = ''"
	204	+ );
	205	+
	206	+ if ($update_result !== false) {
	207	+ //error_log("MxChat: Updated {$update_result} existing records to public access");
	208	+ }
	209	+ }
	210	+ }
	211	+}
	212	+
	213	+/**
	214	+ * NEW: Add enabled_bots column to intents table for multi-bot action filtering
	215	+ */
	216	+function mxchat_add_enabled_bots_column() {
	217	+ global $wpdb;
	218	+ $table_name = $wpdb->prefix . 'mxchat_intents';
	219	+
	220	+ // Check if table exists first
	221	+ $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
	222	+ if (!$table_exists) {
	223	+ //error_log("MxChat: Intents table does not exist, cannot add enabled_bots column");
	224	+ return;
	225	+ }
	226	+
	227	+ // Check if column already exists
	228	+ $column_exists = $wpdb->get_results(
	229	+ $wpdb->prepare(
	230	+ "SHOW COLUMNS FROM {$table_name} LIKE %s",
	231	+ 'enabled_bots'
	232	+ )
	233	+ );
	234	+
	235	+ if (empty($column_exists)) {
	236	+ $alter_sql = "ALTER TABLE {$table_name} ADD COLUMN enabled_bots LONGTEXT DEFAULT NULL AFTER enabled";
	237	+ $result = $wpdb->query($alter_sql);
	238	+
	239	+ if ($result === false) {
	240	+ //error_log("MxChat: Failed to add enabled_bots column. Error: " . $wpdb->last_error);
	241	+ } else {
	242	+ //error_log("MxChat: Successfully added enabled_bots column");
	243	+
	244	+ // Set all existing actions to work with 'default' bot for backward compatibility
	245	+ $default_bots = json_encode(['default']);
	246	+ $update_result = $wpdb->query(
	247	+ $wpdb->prepare(
	248	+ "UPDATE {$table_name}
	249	+ SET enabled_bots = %s
	250	+ WHERE enabled_bots IS NULL OR enabled_bots = ''",
	251	+ $default_bots
	252	+ )
	253	+ );
	254	+
	255	+ if ($update_result !== false) {
	256	+ //error_log("MxChat: Updated {$update_result} existing actions to work with default bot");
	257	+ }
	258	+ }
	259	+ }
	260	+}
	261	+
	262	+/**
	263	+ * Create Pinecone role restrictions table
	264	+ */
	265	+function mxchat_create_pinecone_roles_table() {
	266	+ global $wpdb;
	267	+
	268	+ $table_name = $wpdb->prefix . 'mxchat_pinecone_roles';
	269	+ $charset_collate = $wpdb->get_charset_collate();
	270	+
	271	+ $sql = "CREATE TABLE $table_name (
	272	+ id mediumint(9) NOT NULL AUTO_INCREMENT,
	273	+ vector_id varchar(255) NOT NULL,
	274	+ source_url text,
	275	+ role_restriction varchar(50) DEFAULT 'public',
	276	+ updated_at timestamp DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
	277	+ PRIMARY KEY (id),
	278	+ UNIQUE KEY vector_id (vector_id),
	279	+ KEY role_restriction (role_restriction)
	280	+ ) $charset_collate;";
	281	+
	282	+ require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
	283	+ dbDelta($sql);
	284	+}
	285	+
	286	+function mxchat_activate() {
	287	+ global $wpdb;
	288	+ $charset_collate = $wpdb->get_charset_collate();
	289	+
	290	+ //error_log("MxChat: Running activation function");
	291	+
	292	+ // Create chat transcripts table with improved function
	293	+ mxchat_create_chat_transcripts_table();
	294	+
51	295	// System Prompt Content Table
52	296	$system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content';
53	297	$sql_system_prompt = "CREATE TABLE $system_prompt_table (
54	298	id MEDIUMINT(9) NOT NULL AUTO_INCREMENT,
		@@ -55,13 +299,14 @@
55	299	url VARCHAR(255) NOT NULL,
56	300	article_content LONGTEXT NOT NULL,
57	301	embedding_vector LONGTEXT,
58	302	source_url VARCHAR(255) DEFAULT NULL,
	303	+ role_restriction VARCHAR(50) DEFAULT 'public',
59	304	timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
60	305	PRIMARY KEY (id)
61	306	) $charset_collate;";
62	307
63		- // Intents Table
	308	+ // Intents Table - NOW INCLUDES enabled_bots column from the start
64	309	$intents_table = $wpdb->prefix . 'mxchat_intents';
65	310	$sql_intents_table = "CREATE TABLE $intents_table (
66	311	id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
67	312	intent_label VARCHAR(255) NOT NULL,
		@@ -68,51 +313,261 @@
68	313	phrases TEXT NOT NULL,
69	314	embedding_vector LONGTEXT NOT NULL,
70	315	callback_function VARCHAR(255) NOT NULL,
71	316	similarity_threshold FLOAT DEFAULT 0.85,
	317	+ enabled TINYINT(1) NOT NULL DEFAULT 1,
	318	+ enabled_bots LONGTEXT DEFAULT NULL,
72	319	PRIMARY KEY (id)
73	320	) $charset_collate;";
74	321
75	322	require_once ABSPATH . 'wp-admin/includes/upgrade.php';
76	323
77		- // Create or update tables
78		- dbDelta($sql_chat_transcripts);
	324	+ // Create other tables
79	325	dbDelta($sql_system_prompt);
80	326	dbDelta($sql_intents_table);
81	327
82		- // Ensure additional columns in `mxchat_chat_transcripts`
83		- mxchat_add_missing_columns($chat_transcripts_table, 'user_identifier', 'VARCHAR(255)');
84		- mxchat_add_missing_columns($chat_transcripts_table, 'user_email', 'VARCHAR(255) DEFAULT NULL');
	328	+ // Create URL click tracking table
	329	+ mxchat_create_url_clicks_table();
	330	+
	331	+ //Create Pinecone roles table
	332	+ mxchat_create_pinecone_roles_table();
85	333
86		- // Ensure additional columns in `mxchat_system_prompt_content`
87		- mxchat_add_missing_columns($system_prompt_table, 'embedding_vector', 'LONGTEXT');
88		- mxchat_add_missing_columns($system_prompt_table, 'source_url', 'VARCHAR(255) DEFAULT NULL');
	334	+ // Ensure additional columns in system prompt table
	335	+ $existing_system_columns = $wpdb->get_results("SHOW COLUMNS FROM $system_prompt_table");
	336	+ if (!empty($existing_system_columns)) {
	337	+ $existing_system_column_names = array_column($existing_system_columns, 'Field');
	338	+
	339	+ if (!in_array('embedding_vector', $existing_system_column_names)) {
	340	+ $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN embedding_vector LONGTEXT");
	341	+ }
	342	+ if (!in_array('source_url', $existing_system_column_names)) {
	343	+ $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN source_url VARCHAR(255) DEFAULT NULL");
	344	+ }
	345	+ if (!in_array('role_restriction', $existing_system_column_names)) {
	346	+ $wpdb->query("ALTER TABLE $system_prompt_table ADD COLUMN role_restriction VARCHAR(50) DEFAULT 'public' AFTER source_url");
	347	+ }
	348	+ }
89	349
90	350	// Set default thresholds for existing intents
91	351	$wpdb->query("UPDATE {$intents_table} SET similarity_threshold = 0.85 WHERE similarity_threshold IS NULL");
	352	+
	353	+ // Ensure enabled column exists in intents table
	354	+ $existing_intent_columns = $wpdb->get_results("SHOW COLUMNS FROM $intents_table");
	355	+ if (!empty($existing_intent_columns)) {
	356	+ $existing_intent_column_names = array_column($existing_intent_columns, 'Field');
	357	+
	358	+ if (!in_array('enabled', $existing_intent_column_names)) {
	359	+ $wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled TINYINT(1) NOT NULL DEFAULT 1");
	360	+ }
	361	+
	362	+ // NEW: Ensure enabled_bots column exists for existing installations
	363	+ if (!in_array('enabled_bots', $existing_intent_column_names)) {
	364	+ $wpdb->query("ALTER TABLE $intents_table ADD COLUMN enabled_bots LONGTEXT DEFAULT NULL AFTER enabled");
	365	+
	366	+ // Set existing actions to work with default bot
	367	+ $default_bots = json_encode(['default']);
	368	+ $wpdb->query($wpdb->prepare(
	369	+ "UPDATE {$intents_table} SET enabled_bots = %s WHERE enabled_bots IS NULL",
	370	+ $default_bots
	371	+ ));
	372	+ }
	373	+ }
92	374
93		- // Update plugin version in the database
94		- update_option('mxchat_plugin_version', '2.0.4');
	375	+ // Setup cron jobs
	376	+ mxchat_setup_cron_jobs();
	377	+
	378	+ // Update version
	379	+ update_option('mxchat_plugin_version', MXCHAT_VERSION);
	380	+
	381	+ //error_log("MxChat: Activation function completed");
95	382	}
96	383
	384	+/**
	385	+ * Setup cron jobs on plugin activation
	386	+ */
	387	+function mxchat_setup_cron_jobs() {
	388	+ // Clear any existing cron jobs first
	389	+ wp_clear_scheduled_hook('mxchat_reset_rate_limits');
	390	+
	391	+ // Check if WordPress cron is disabled
	392	+ if (defined('DISABLE_WP_CRON') && DISABLE_WP_CRON) {
	393	+ // Set flag to use fallback system
	394	+ update_option('mxchat_use_fallback_rate_limits', true);
	395	+ update_option('mxchat_next_rate_limit_check', time() + 3600);
	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);
	406	+ } else {
	407	+ // Clear fallback flags if cron scheduling succeeded
	408	+ delete_option('mxchat_use_fallback_rate_limits');
	409	+ }
	410	+}
97	411
98		-function mxchat_add_missing_columns($table, $column_name, $column_type) {
	412	+/**
	413	+ * Clean up on plugin deactivation
	414	+ */
	415	+function mxchat_deactivate() {
	416	+ // Clear scheduled cron jobs
	417	+ wp_clear_scheduled_hook('mxchat_reset_rate_limits');
	418	+
	419	+ // Clear fallback options
	420	+ delete_option('mxchat_use_fallback_rate_limits');
	421	+ delete_option('mxchat_next_rate_limit_check');
	422	+ delete_option('mxchat_fallback_check_interval');
	423	+}
	424	+
	425	+/**
	426	+ * Check if fallback rate limit cleanup is needed
	427	+ */
	428	+function mxchat_check_fallback_rate_limits() {
	429	+ $use_fallback = get_option('mxchat_use_fallback_rate_limits', false);
	430	+
	431	+ if (!$use_fallback) {
	432	+ return;
	433	+ }
	434	+
	435	+ $next_check = get_option('mxchat_next_rate_limit_check', 0);
	436	+
	437	+ if (time() >= $next_check) {
	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	+ }
	445	+ }
	446	+ }
	447	+}
	448	+
	449	+/**
	450	+ * Robust update checking with role restriction migration
	451	+ */
	452	+function mxchat_check_for_update() {
	453	+ global $wpdb; // CRITICAL: Declare this at the top
	454	+
	455	+ try {
	456	+ $current_version = get_option('mxchat_plugin_version', '0.0.0');
	457	+ $plugin_version = MXCHAT_VERSION;
	458	+
	459	+ // Always run activation to ensure tables exist (safe for existing installations)
	460	+ if ($current_version !== $plugin_version) {
	461	+ //error_log("MxChat: Version change detected: $current_version -> $plugin_version");
	462	+
	463	+ // Run live agent update BEFORE updating the stored version
	464	+ mxchat_handle_live_agent_update();
	465	+
	466	+ //Run role restriction migration for 2.4.1
	467	+ if (version_compare($current_version, '2.4.1', '<')) {
	468	+ mxchat_add_role_restriction_column();
	469	+ }
	470	+
	471	+ // NEW: Run enabled_bots column migration for 2.4.4
	472	+ if (version_compare($current_version, '2.4.4', '<')) {
	473	+ mxchat_add_enabled_bots_column();
	474	+ }
	475	+
	476	+ // Run activation (this will create/update all tables and columns)
	477	+ mxchat_activate();
	478	+
	479	+ // Run migration functions
	480	+ mxchat_migrate_live_agent_status();
	481	+
	482	+ // Add the cleanup function for version 2.1.8
	483	+ if (version_compare($current_version, '2.1.8', '<')) {
	484	+ $deleted = mxchat_cleanup_orphaned_chat_history();
	485	+ }
	486	+
	487	+ // Update version LAST
	488	+ update_option('mxchat_plugin_version', $plugin_version);
	489	+
	490	+ //error_log("MxChat: Updated from version $current_version to $plugin_version");
	491	+ }
	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	+
	503	+ } catch (Exception $e) {
	504	+ //error_log('MxChat update error: ' . $e->getMessage());
	505	+ // Don't update version if there was an error
	506	+ }
	507	+}
	508	+
	509	+/**
	510	+ * Ensure tables exist on every load for fresh installations
	511	+ */
	512	+function mxchat_ensure_tables_exist() {
99	513	global $wpdb;
100		- $column_exists = $wpdb->get_results($wpdb->prepare("SHOW COLUMNS FROM $table LIKE %s", $column_name));
101		- if (empty($column_exists)) {
102		- $wpdb->query("ALTER TABLE $table ADD COLUMN $column_name $column_type");
	514	+
	515	+ // Only run for admin users to avoid performance impact
	516	+ if (!current_user_can('administrator')) {
	517	+ return;
103	518	}
	519	+
	520	+ $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
	521	+ $table_exists = $wpdb->get_var("SHOW TABLES LIKE '$table_name'") === $table_name;
	522	+
	523	+ if (!$table_exists) {
	524	+ //error_log("MxChat: Tables missing on admin load, running activation");
	525	+ mxchat_activate();
	526	+ }
104	527	}
105	528
106		-function mxchat_check_for_update() {
107		- $current_version = get_option('mxchat_plugin_version');
108		- $plugin_version = '2.0.4'; // Update with your latest version
	529	+/**
	530	+ * Clean up orphaned chat history options from the wp_options table
	531	+ * @return int Number of options deleted
	532	+ */
	533	+function mxchat_cleanup_orphaned_chat_history() {
	534	+ global $wpdb;
	535	+ $count = 0;
109	536
110		- if ($current_version !== $plugin_version) {
111		- mxchat_activate(); // Run the activation script to apply schema changes
112		- mxchat_migrate_live_agent_status(); // Add migration for live agent status
113		- update_option('mxchat_plugin_version', $plugin_version); // Update the version
	537	+ // Get all option keys that match our pattern
	538	+ $history_options = $wpdb->get_results(
	539	+ "SELECT option_name FROM {$wpdb->options}
	540	+ WHERE option_name LIKE 'mxchat_history_%'"
	541	+ );
	542	+
	543	+ if (!empty($history_options)) {
	544	+ foreach ($history_options as $option) {
	545	+ // Extract the session ID from the option name
	546	+ $session_id = str_replace('mxchat_history_', '', $option->option_name);
	547	+
	548	+ // Check if this session still exists in the custom table
	549	+ $table_name = $wpdb->prefix . 'mxchat_chat_transcripts';
	550	+ $exists = $wpdb->get_var(
	551	+ $wpdb->prepare(
	552	+ "SELECT COUNT(*) FROM {$table_name} WHERE session_id = %s",
	553	+ $session_id
	554	+ )
	555	+ );
	556	+
	557	+ // If session doesn't exist in the main table, delete the option
	558	+ if ($exists == 0) {
	559	+ delete_option($option->option_name);
	560	+ // Also delete related metadata
	561	+ delete_option("mxchat_email_{$session_id}");
	562	+ delete_option("mxchat_name_{$session_id}");
	563	+ delete_option("mxchat_agent_name_{$session_id}");
	564	+ $count++;
	565	+ }
	566	+ }
114	567	}
	568	+
	569	+ return $count;
115	570	}
116	571
117	572	function mxchat_migrate_live_agent_status() {
118	573	$options = get_option('mxchat_options', []);
		@@ -145,16 +600,98 @@
145	600	update_option('mxchat_options', $options);
146	601	}
147	602	}
148	603
	604	+function mxchat_handle_live_agent_update() {
	605	+ // Get the CURRENT stored version (before it gets updated)
	606	+ $current_version = get_option('mxchat_plugin_version', '0.0.0');
	607	+ $new_version = '2.2.2';
	608	+
	609	+ // Only run this once for the update to 2.2.2
	610	+ $update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false);
	611	+
	612	+ // Check if we're upgrading TO 2.2.2 and haven't handled this yet
	613	+ if (version_compare($current_version, $new_version, '<') && !$update_handled) {
	614	+ $options = get_option('mxchat_options', array());
	615	+
	616	+ // Check if live agent was previously enabled
	617	+ if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') {
	618	+ // Disable live agent
	619	+ $options['live_agent_status'] = 'off';
	620	+ update_option('mxchat_options', $options);
	621	+
	622	+ // Set flag to show the notification banner
	623	+ update_option('mxchat_show_live_agent_disabled_notice', true);
	624	+ }
	625	+
	626	+ // Mark this update as handled
	627	+ update_option('mxchat_live_agent_update_2_2_2_handled', true);
	628	+ }
	629	+}
149	630
150		-// Run the update check function on every request
151		-add_action('plugins_loaded', 'mxchat_check_for_update');
	631	+// Initialize plugin safely
	632	+function mxchat_init() {
	633	+ // Include all class files first
	634	+ mxchat_include_classes();
	635	+
	636	+ // Run update check
	637	+ mxchat_check_for_update();
	638	+
	639	+ // CRITICAL: Ensure tables exist (for fresh installations that don't trigger activation hook)
	640	+ add_action('admin_init', 'mxchat_ensure_tables_exist', 1);
	641	+
	642	+ // Add fallback rate limit check
	643	+ add_action('init', 'mxchat_check_fallback_rate_limits', 5);
	644	+
	645	+ // Initialize classes with error handling
	646	+ try {
	647	+ // Initialize admin classes
	648	+ if (is_admin()) {
	649	+ if (class_exists('MxChat_Knowledge_Manager')) {
	650	+ $mxchat_knowledge_manager = new MxChat_Knowledge_Manager();
	651	+
	652	+ if (class_exists('MxChat_Admin')) {
	653	+ $mxchat_admin = new MxChat_Admin($mxchat_knowledge_manager);
	654	+ }
	655	+ }
	656	+
	657	+ // Initialize meta box class
	658	+ if (class_exists('MxChat_Meta_Box')) {
	659	+ new MxChat_Meta_Box();
	660	+ }
	661	+ }
	662	+
	663	+ // Initialize public classes
	664	+ if (class_exists('MxChat_Public')) {
	665	+ $mxchat_public = new MxChat_Public();
	666	+ }
	667	+
	668	+ if (class_exists('MxChat_Integrator')) {
	669	+ $mxchat_integrator = new MxChat_Integrator();
	670	+ }
	671	+
	672	+ } catch (Exception $e) {
	673	+ //error_log('MxChat initialization error: ' . $e->getMessage());
	674	+
	675	+ // Show admin notice if there's an error
	676	+ if (is_admin()) {
	677	+ add_action('admin_notices', function() use ($e) {
	678	+ echo '<div class="notice notice-error"><p>';
	679	+ echo '<strong>MxChat Error:</strong> Plugin initialization failed. ';
	680	+ echo 'Please check error logs or contact support. Error: ' . esc_html($e->getMessage());
	681	+ echo '</p></div>';
	682	+ });
	683	+ }
	684	+ }
	685	+}
152	686
	687	+// Run initialization on plugins_loaded
	688	+add_action('plugins_loaded', 'mxchat_init');
	689	+
153	690	// Register activation hook
154	691	register_activation_hook(__FILE__, 'mxchat_activate');
155	692
156		-
	693	+// Add cron schedule
157	694	add_filter('cron_schedules', function($schedules) {
158	695	$schedules['one_minute'] = array(
159	696	'interval' => 60,
160	697	'display' => 'Every Minute'
		@@ -161,16 +698,6 @@
161	698	);
162	699	return $schedules;
163	700	});
164	701
165		-add_action('init', function() {
166		- add_action('mxchat_process_pdf_pages', array('MxChat_Admin', 'process_pdf_pages_cron'), 10, 5);
167		- add_action('mxchat_process_sitemap_urls', array('MxChat_Admin', 'process_sitemap_urls_cron'), 10, 5);
168		-});
169		-
170		-
171		-// Instantiate classes
172		-if (is_admin()) {
173		- $mxchat_admin = new MxChat_Admin();
174		-}
175		-$mxchat_public = new MxChat_Public();
176		-$mxchat_integrator = new MxChat_Integrator();
	702	+// Register deactivation hook
	703	+register_deactivation_hook(__FILE__, 'mxchat_deactivate');