<?php
/**
 * Core plugin class
 */
class TWP_Core {
    
    protected $loader;
    protected $plugin_name;
    protected $version;
    
    /**
     * Constructor
     */
    public function __construct() {
        $this->version = TWP_VERSION;
        $this->plugin_name = 'twilio-wp-plugin';
        
        $this->load_dependencies();
        $this->set_locale();
        $this->define_admin_hooks();
        $this->define_public_hooks();
        $this->define_api_hooks();
    }
    
    /**
     * Load required dependencies
     */
    private function load_dependencies() {
        // Loader class
        require_once TWP_PLUGIN_DIR . 'includes/class-twp-loader.php';
        
        // API classes
        require_once TWP_PLUGIN_DIR . 'includes/class-twp-twilio-api.php';
        require_once TWP_PLUGIN_DIR . 'includes/class-twp-elevenlabs-api.php';
        
        // Feature classes
        require_once TWP_PLUGIN_DIR . 'includes/class-twp-scheduler.php';
        require_once TWP_PLUGIN_DIR . 'includes/class-twp-call-queue.php';
        require_once TWP_PLUGIN_DIR . 'includes/class-twp-workflow.php';
        require_once TWP_PLUGIN_DIR . 'includes/class-twp-webhooks.php';
        require_once TWP_PLUGIN_DIR . 'includes/class-twp-call-logger.php';
        require_once TWP_PLUGIN_DIR . 'includes/class-twp-agent-groups.php';
        require_once TWP_PLUGIN_DIR . 'includes/class-twp-agent-manager.php';
        require_once TWP_PLUGIN_DIR . 'includes/class-twp-callback-manager.php';
        
        // Admin classes
        require_once TWP_PLUGIN_DIR . 'admin/class-twp-admin.php';
        
        $this->loader = new TWP_Loader();
    }
    
    /**
     * Define locale for internationalization
     */
    private function set_locale() {
        add_action('plugins_loaded', function() {
            load_plugin_textdomain(
                'twilio-wp-plugin',
                false,
                dirname(TWP_PLUGIN_BASENAME) . '/languages/'
            );
        });
    }
    
    /**
     * Register admin hooks
     */
    private function define_admin_hooks() {
        $plugin_admin = new TWP_Admin($this->get_plugin_name(), $this->get_version());
        
        $this->loader->add_action('admin_enqueue_scripts', $plugin_admin, 'enqueue_styles');
        $this->loader->add_action('admin_enqueue_scripts', $plugin_admin, 'enqueue_scripts');
        $this->loader->add_action('admin_menu', $plugin_admin, 'add_plugin_admin_menu');
        $this->loader->add_action('admin_init', $plugin_admin, 'register_settings');
        $this->loader->add_action('admin_notices', $plugin_admin, 'show_admin_notices');
        
        // AJAX handlers
        $this->loader->add_action('wp_ajax_twp_save_schedule', $plugin_admin, 'ajax_save_schedule');
        $this->loader->add_action('wp_ajax_twp_delete_schedule', $plugin_admin, 'ajax_delete_schedule');
        $this->loader->add_action('wp_ajax_twp_save_workflow', $plugin_admin, 'ajax_save_workflow');
        $this->loader->add_action('wp_ajax_twp_get_workflow', $plugin_admin, 'ajax_get_workflow');
        $this->loader->add_action('wp_ajax_twp_delete_workflow', $plugin_admin, 'ajax_delete_workflow');
        $this->loader->add_action('wp_ajax_twp_test_call', $plugin_admin, 'ajax_test_call');
        
        // Phone number management AJAX
        $this->loader->add_action('wp_ajax_twp_get_phone_numbers', $plugin_admin, 'ajax_get_phone_numbers');
        $this->loader->add_action('wp_ajax_twp_search_available_numbers', $plugin_admin, 'ajax_search_available_numbers');
        $this->loader->add_action('wp_ajax_twp_purchase_number', $plugin_admin, 'ajax_purchase_number');
        $this->loader->add_action('wp_ajax_twp_configure_number', $plugin_admin, 'ajax_configure_number');
        $this->loader->add_action('wp_ajax_twp_release_number', $plugin_admin, 'ajax_release_number');
        
        // Queue management AJAX
        $this->loader->add_action('wp_ajax_twp_get_queue', $plugin_admin, 'ajax_get_queue');
        $this->loader->add_action('wp_ajax_twp_save_queue', $plugin_admin, 'ajax_save_queue');
        $this->loader->add_action('wp_ajax_twp_get_queue_details', $plugin_admin, 'ajax_get_queue_details');
        $this->loader->add_action('wp_ajax_twp_get_all_queues', $plugin_admin, 'ajax_get_all_queues');
        $this->loader->add_action('wp_ajax_twp_delete_queue', $plugin_admin, 'ajax_delete_queue');
        $this->loader->add_action('wp_ajax_twp_get_dashboard_stats', $plugin_admin, 'ajax_get_dashboard_stats');
        
        // Eleven Labs AJAX
        $this->loader->add_action('wp_ajax_twp_get_elevenlabs_voices', $plugin_admin, 'ajax_get_elevenlabs_voices');
        $this->loader->add_action('wp_ajax_twp_get_elevenlabs_models', $plugin_admin, 'ajax_get_elevenlabs_models');
        $this->loader->add_action('wp_ajax_twp_preview_voice', $plugin_admin, 'ajax_preview_voice');
        
        // Voicemail management AJAX
        $this->loader->add_action('wp_ajax_twp_get_voicemail', $plugin_admin, 'ajax_get_voicemail');
        $this->loader->add_action('wp_ajax_twp_delete_voicemail', $plugin_admin, 'ajax_delete_voicemail');
        $this->loader->add_action('wp_ajax_twp_transcribe_voicemail', $plugin_admin, 'ajax_transcribe_voicemail');
        
        // Agent group management AJAX
        $this->loader->add_action('wp_ajax_twp_get_all_groups', $plugin_admin, 'ajax_get_all_groups');
        $this->loader->add_action('wp_ajax_twp_get_group', $plugin_admin, 'ajax_get_group');
        $this->loader->add_action('wp_ajax_twp_save_group', $plugin_admin, 'ajax_save_group');
        $this->loader->add_action('wp_ajax_twp_delete_group', $plugin_admin, 'ajax_delete_group');
        $this->loader->add_action('wp_ajax_twp_get_group_members', $plugin_admin, 'ajax_get_group_members');
        $this->loader->add_action('wp_ajax_twp_add_group_member', $plugin_admin, 'ajax_add_group_member');
        $this->loader->add_action('wp_ajax_twp_remove_group_member', $plugin_admin, 'ajax_remove_group_member');
        
        // Agent queue management AJAX
        $this->loader->add_action('wp_ajax_twp_accept_call', $plugin_admin, 'ajax_accept_call');
        $this->loader->add_action('wp_ajax_twp_get_waiting_calls', $plugin_admin, 'ajax_get_waiting_calls');
        $this->loader->add_action('wp_ajax_twp_set_agent_status', $plugin_admin, 'ajax_set_agent_status');
        
        // Callback and outbound call AJAX
        $this->loader->add_action('wp_ajax_twp_request_callback', $plugin_admin, 'ajax_request_callback');
        $this->loader->add_action('wp_ajax_twp_initiate_outbound_call', $plugin_admin, 'ajax_initiate_outbound_call');
        $this->loader->add_action('wp_ajax_twp_initiate_outbound_call_with_from', $plugin_admin, 'ajax_initiate_outbound_call_with_from');
        $this->loader->add_action('wp_ajax_twp_get_callbacks', $plugin_admin, 'ajax_get_callbacks');
    }
    
    /**
     * Register public hooks
     */
    private function define_public_hooks() {
        // Webhook endpoints
        $webhooks = new TWP_Webhooks();
        $this->loader->add_action('init', $webhooks, 'register_endpoints');
        
        // Initialize Agent Manager
        TWP_Agent_Manager::init();
        
        // Scheduled events
        $scheduler = new TWP_Scheduler();
        $this->loader->add_action('twp_check_schedules', $scheduler, 'check_active_schedules');
        
        $queue = new TWP_Call_Queue();
        $this->loader->add_action('twp_process_queue', $queue, 'process_waiting_calls');
        
        // Callback processing
        $this->loader->add_action('twp_process_callbacks', 'TWP_Callback_Manager', 'process_callbacks');
        
        // Schedule cron events
        if (!wp_next_scheduled('twp_check_schedules')) {
            wp_schedule_event(time(), 'twp_every_minute', 'twp_check_schedules');
        }
        
        if (!wp_next_scheduled('twp_process_queue')) {
            wp_schedule_event(time(), 'twp_every_30_seconds', 'twp_process_queue');
        }
        
        if (!wp_next_scheduled('twp_process_callbacks')) {
            wp_schedule_event(time(), 'twp_every_minute', 'twp_process_callbacks');
        }
    }
    
    /**
     * Register API hooks
     */
    private function define_api_hooks() {
        // REST API endpoints
        add_action('rest_api_init', function() {
            register_rest_route('twilio-wp/v1', '/schedules', array(
                'methods' => 'GET',
                'callback' => array('TWP_Scheduler', 'get_schedules'),
                'permission_callback' => function() {
                    return current_user_can('manage_options');
                }
            ));
            
            register_rest_route('twilio-wp/v1', '/workflows', array(
                'methods' => 'GET',
                'callback' => array('TWP_Workflow', 'get_workflows'),
                'permission_callback' => function() {
                    return current_user_can('manage_options');
                }
            ));
            
            register_rest_route('twilio-wp/v1', '/queue-status', array(
                'methods' => 'GET',
                'callback' => array('TWP_Call_Queue', 'get_queue_status'),
                'permission_callback' => function() {
                    return current_user_can('manage_options');
                }
            ));
        });
    }
    
    /**
     * Run the loader
     */
    public function run() {
        // Add custom cron schedules
        add_filter('cron_schedules', function($schedules) {
            $schedules['twp_every_minute'] = array(
                'interval' => 60,
                'display' => __('Every Minute', 'twilio-wp-plugin')
            );
            $schedules['twp_every_30_seconds'] = array(
                'interval' => 30,
                'display' => __('Every 30 Seconds', 'twilio-wp-plugin')
            );
            return $schedules;
        });
        
        $this->loader->run();
    }
    
    /**
     * Get plugin name
     */
    public function get_plugin_name() {
        return $this->plugin_name;
    }
    
    /**
     * Get version
     */
    public function get_version() {
        return $this->version;
    }
}