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<?php |
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/** |
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* Plugin Name: MxChat |
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* Description: AI chatbot for WordPress with OpenAI, Claude, xAI, DeepSeek, live agent, PDF uploads, WooCommerce, and training on website data. |
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* Version: 2.3.1 |
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* Author: MxChat |
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* Author URI: https://mxchat.ai |
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* License: GPLv2 or later |
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* License URI: https://www.gnu.org/licenses/gpl-2.0.html |
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* Text Domain: mxchat |
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* Domain Path: /languages |
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*/ |
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|
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if (!defined('ABSPATH')) { |
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exit; // Exit if accessed directly. |
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} |
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|
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// Define plugin version constant for asset versioning |
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define('MXCHAT_VERSION', '2.3.1'); |
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|
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function mxchat_load_textdomain() { |
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load_plugin_textdomain('mxchat', false, dirname(plugin_basename(__FILE__)) . '/languages'); |
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} |
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add_action('plugins_loaded', 'mxchat_load_textdomain'); |
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|
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// Include classes with error handling |
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function mxchat_include_classes() { |
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$class_files = array( |
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'includes/class-mxchat-integrator.php', |
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'includes/class-mxchat-admin.php', |
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'includes/class-mxchat-public.php', |
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'includes/class-mxchat-utils.php', |
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'includes/class-mxchat-user.php', |
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'includes/pdf-parser/alt_autoload.php', |
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'includes/class-mxchat-word-handler.php', |
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'admin/class-ajax-handler.php', |
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'admin/class-pinecone-manager.php', |
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'admin/class-knowledge-manager.php' |
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); |
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|
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foreach ($class_files as $file) { |
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$file_path = plugin_dir_path(__FILE__) . $file; |
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if (file_exists($file_path)) { |
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require_once $file_path; |
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} else { |
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error_log('MxChat: Missing class file - ' . $file); |
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} |
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} |
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} |
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|
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function mxchat_activate() { |
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global $wpdb; |
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$charset_collate = $wpdb->get_charset_collate(); |
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|
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// Chat Transcripts Table |
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$chat_transcripts_table = $wpdb->prefix . 'mxchat_chat_transcripts'; |
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$sql_chat_transcripts = "CREATE TABLE $chat_transcripts_table ( |
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id MEDIUMINT(9) NOT NULL AUTO_INCREMENT, |
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user_id MEDIUMINT(9) DEFAULT 0, |
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session_id VARCHAR(255) NOT NULL, |
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role VARCHAR(255) NOT NULL, |
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message TEXT NOT NULL, |
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user_email VARCHAR(255) DEFAULT NULL, |
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timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, |
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PRIMARY KEY (id) |
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) $charset_collate;"; |
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|
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// System Prompt Content Table |
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$system_prompt_table = $wpdb->prefix . 'mxchat_system_prompt_content'; |
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$sql_system_prompt = "CREATE TABLE $system_prompt_table ( |
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id MEDIUMINT(9) NOT NULL AUTO_INCREMENT, |
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url VARCHAR(255) NOT NULL, |
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article_content LONGTEXT NOT NULL, |
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embedding_vector LONGTEXT, |
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source_url VARCHAR(255) DEFAULT NULL, |
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timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL, |
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PRIMARY KEY (id) |
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) $charset_collate;"; |
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|
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// Intents Table |
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$intents_table = $wpdb->prefix . 'mxchat_intents'; |
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$sql_intents_table = "CREATE TABLE $intents_table ( |
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id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT, |
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intent_label VARCHAR(255) NOT NULL, |
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phrases TEXT NOT NULL, |
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embedding_vector LONGTEXT NOT NULL, |
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callback_function VARCHAR(255) NOT NULL, |
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similarity_threshold FLOAT DEFAULT 0.85, |
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PRIMARY KEY (id) |
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) $charset_collate;"; |
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|
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require_once ABSPATH . 'wp-admin/includes/upgrade.php'; |
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|
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// Create or update tables |
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dbDelta($sql_chat_transcripts); |
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dbDelta($sql_system_prompt); |
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dbDelta($sql_intents_table); |
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|
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// Ensure additional columns in `mxchat_chat_transcripts` |
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mxchat_add_missing_columns($chat_transcripts_table, 'user_identifier', 'VARCHAR(255)'); |
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mxchat_add_missing_columns($chat_transcripts_table, 'user_email', 'VARCHAR(255) DEFAULT NULL'); |
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|
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// Ensure additional columns in `mxchat_system_prompt_content` |
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mxchat_add_missing_columns($system_prompt_table, 'embedding_vector', 'LONGTEXT'); |
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mxchat_add_missing_columns($system_prompt_table, 'source_url', 'VARCHAR(255) DEFAULT NULL'); |
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|
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// Set default thresholds for existing intents |
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$wpdb->query("UPDATE {$intents_table} SET similarity_threshold = 0.85 WHERE similarity_threshold IS NULL"); |
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mxchat_add_missing_columns($intents_table, 'enabled', 'TINYINT(1) NOT NULL DEFAULT 1'); |
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|
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// Use the constant instead of hardcoded version |
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update_option('mxchat_plugin_version', MXCHAT_VERSION); |
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} |
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|
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function mxchat_add_missing_columns($table, $column_name, $column_type) { |
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global $wpdb; |
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$column_exists = $wpdb->get_results($wpdb->prepare("SHOW COLUMNS FROM $table LIKE %s", $column_name)); |
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if (empty($column_exists)) { |
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$wpdb->query("ALTER TABLE $table ADD COLUMN $column_name $column_type"); |
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} |
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} |
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|
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function mxchat_check_for_update() { |
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try { |
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$current_version = get_option('mxchat_plugin_version'); |
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$plugin_version = MXCHAT_VERSION; |
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|
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if ($current_version !== $plugin_version) { |
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// Run live agent update BEFORE updating the stored version |
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mxchat_handle_live_agent_update(); |
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|
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// Run existing update processes |
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mxchat_activate(); |
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mxchat_migrate_live_agent_status(); |
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|
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// Add the new cleanup function for version 2.1.8 |
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if (version_compare($current_version, '2.1.8', '<')) { |
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$deleted = mxchat_cleanup_orphaned_chat_history(); |
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} |
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|
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// Update version LAST so the live agent update logic can work |
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update_option('mxchat_plugin_version', $plugin_version); |
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} |
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} catch (Exception $e) { |
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error_log('MxChat update error: ' . $e->getMessage()); |
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// Don't update version if there was an error |
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} |
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} |
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|
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/** |
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* Clean up orphaned chat history options from the wp_options table |
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* @return int Number of options deleted |
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*/ |
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function mxchat_cleanup_orphaned_chat_history() { |
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global $wpdb; |
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$count = 0; |
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|
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// Get all option keys that match our pattern |
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$history_options = $wpdb->get_results( |
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"SELECT option_name FROM {$wpdb->options} |
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WHERE option_name LIKE 'mxchat_history_%'" |
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); |
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|
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if (!empty($history_options)) { |
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foreach ($history_options as $option) { |
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// Extract the session ID from the option name |
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$session_id = str_replace('mxchat_history_', '', $option->option_name); |
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|
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// Check if this session still exists in the custom table |
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$table_name = $wpdb->prefix . 'mxchat_chat_transcripts'; |
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$exists = $wpdb->get_var( |
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$wpdb->prepare( |
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"SELECT COUNT(*) FROM {$table_name} WHERE session_id = %s", |
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$session_id |
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) |
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); |
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|
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// If session doesn't exist in the main table, delete the option |
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if ($exists == 0) { |
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delete_option($option->option_name); |
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// Also delete related metadata |
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delete_option("mxchat_email_{$session_id}"); |
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delete_option("mxchat_agent_name_{$session_id}"); |
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$count++; |
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} |
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} |
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} |
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|
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return $count; |
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} |
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|
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function mxchat_migrate_live_agent_status() { |
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$options = get_option('mxchat_options', []); |
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|
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// Check if live_agent_status exists |
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if (isset($options['live_agent_status'])) { |
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$current_status = $options['live_agent_status']; |
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$needs_update = false; |
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|
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// Convert to new format if needed |
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if ($current_status === 'online') { |
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$options['live_agent_status'] = 'on'; |
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$needs_update = true; |
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} else if ($current_status === 'offline') { |
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$options['live_agent_status'] = 'off'; |
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$needs_update = true; |
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} else if (!in_array($current_status, ['on', 'off'])) { |
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// Default to off for any unexpected values |
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$options['live_agent_status'] = 'off'; |
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$needs_update = true; |
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} |
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|
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// Only update if needed |
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if ($needs_update) { |
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update_option('mxchat_options', $options); |
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} |
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} else { |
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// If status doesn't exist, set default to off |
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$options['live_agent_status'] = 'off'; |
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update_option('mxchat_options', $options); |
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} |
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} |
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|
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function mxchat_handle_live_agent_update() { |
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// Get the CURRENT stored version (before it gets updated) |
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$current_version = get_option('mxchat_plugin_version', '0.0.0'); |
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$new_version = '2.2.2'; |
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|
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// Only run this once for the update to 2.2.2 |
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$update_handled = get_option('mxchat_live_agent_update_2_2_2_handled', false); |
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|
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// Check if we're upgrading TO 2.2.2 and haven't handled this yet |
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if (version_compare($current_version, $new_version, '<') && !$update_handled) { |
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$options = get_option('mxchat_options', array()); |
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|
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// Check if live agent was previously enabled |
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if (isset($options['live_agent_status']) && $options['live_agent_status'] === 'on') { |
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// Disable live agent |
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$options['live_agent_status'] = 'off'; |
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update_option('mxchat_options', $options); |
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|
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// Set flag to show the notification banner |
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update_option('mxchat_show_live_agent_disabled_notice', true); |
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} |
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|
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// Mark this update as handled |
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update_option('mxchat_live_agent_update_2_2_2_handled', true); |
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} |
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} |
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|
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// Initialize plugin safely |
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function mxchat_init() { |
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// Include all class files first |
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mxchat_include_classes(); |
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|
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// Run update check |
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mxchat_check_for_update(); |
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|
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// Initialize classes with error handling |
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try { |
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// Initialize admin classes |
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if (is_admin()) { |
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if (class_exists('MxChat_Knowledge_Manager')) { |
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$mxchat_knowledge_manager = new MxChat_Knowledge_Manager(); |
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|
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if (class_exists('MxChat_Admin')) { |
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$mxchat_admin = new MxChat_Admin($mxchat_knowledge_manager); |
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} |
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} |
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} |
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|
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// Initialize public classes |
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if (class_exists('MxChat_Public')) { |
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$mxchat_public = new MxChat_Public(); |
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} |
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|
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if (class_exists('MxChat_Integrator')) { |
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$mxchat_integrator = new MxChat_Integrator(); |
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} |
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|
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} catch (Exception $e) { |
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error_log('MxChat initialization error: ' . $e->getMessage()); |
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|
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// Show admin notice if there's an error |
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if (is_admin()) { |
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add_action('admin_notices', function() use ($e) { |
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echo '<div class="notice notice-error"><p>'; |
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echo '<strong>MxChat Error:</strong> Plugin initialization failed. '; |
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echo 'Please check error logs or contact support. Error: ' . esc_html($e->getMessage()); |
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echo '</p></div>'; |
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}); |
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} |
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} |
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} |
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|
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// Run initialization on plugins_loaded |
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add_action('plugins_loaded', 'mxchat_init'); |
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|
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// Register activation hook |
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register_activation_hook(__FILE__, 'mxchat_activate'); |
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|
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// Add cron schedule |
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add_filter('cron_schedules', function($schedules) { |
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$schedules['one_minute'] = array( |
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'interval' => 60, |
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'display' => 'Every Minute' |
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); |
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return $schedules; |
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}); |
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|
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// Register deactivation hook - wrap in a callback to ensure the integrator exists |
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register_deactivation_hook(__FILE__, function() { |
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if (class_exists('MxChat_Integrator')) { |
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$integrator = new MxChat_Integrator(); |
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if (method_exists($integrator, 'cleanup_cron_events')) { |
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$integrator->cleanup_cron_events(); |
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} |
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} |
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}); |
