<?php
/**
 * Plugin Name: IGNY8 WordPress Bridge
 * Plugin URI: https://igny8.com/igny8-wp-bridge
 * Description: Lightweight bridge plugin that connects WordPress to IGNY8 API for one-way content publishing.
 * Version: 1.2.6
 * Author: IGNY8
 * Author URI: https://igny8.com/
 * License: GPL v2 or later
 * License URI: https://www.gnu.org/licenses/gpl-2.0.html
 * Text Domain: igny8-bridge
 * Domain Path: /languages
 * Requires at least: 5.0
 * Requires PHP: 7.4
 *
 * @package Igny8Bridge
 */

// Prevent direct access
if (!defined('ABSPATH')) {
    exit;
}

// Define plugin constants
define('IGNY8_BRIDGE_VERSION', '1.2.6');
define('IGNY8_BRIDGE_PLUGIN_DIR', plugin_dir_path(__FILE__));
define('IGNY8_BRIDGE_PLUGIN_URL', plugin_dir_url(__FILE__));
define('IGNY8_BRIDGE_PLUGIN_FILE', __FILE__);
define('IGNY8_BRIDGE_PLUGIN_BASENAME', plugin_basename(__FILE__));

/**
 * Main plugin class
 */
class Igny8Bridge {
    
    /**
     * Single instance of the class
     *
     * @var Igny8Bridge
     */
    private static $instance = null;
    
    /**
     * Get single instance
     *
     * @return Igny8Bridge
     */
    public static function get_instance() {
        if (null === self::$instance) {
            self::$instance = new self();
        }
        return self::$instance;
    }
    
    /**
     * Constructor
     */
    private function __construct() {
        $this->init();
    }
    
    /**
     * Initialize plugin
     */
    private function init() {
        // Load core files
        $this->load_dependencies();
        
        // Initialize hooks
        add_action('plugins_loaded', array($this, 'load_plugin_textdomain'));
        add_action('init', array($this, 'init_plugin'));
        
        // Activation/Deactivation hooks
        register_activation_hook(__FILE__, array($this, 'activate'));
        register_deactivation_hook(__FILE__, array($this, 'deactivate'));
    }
    
    /**
     * Load plugin dependencies
     */
    private function load_dependencies() {
        // Core classes
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'includes/functions.php';
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'includes/class-igny8-logger.php';  // Load logger first
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'includes/class-igny8-api.php';
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'includes/class-igny8-site.php';
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'includes/class-igny8-rest-api.php';
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'includes/class-igny8-updater.php';
        // Webhooks removed - using API key authentication only
        
        // Webhook logs (used in admin and frontend)
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'includes/class-igny8-webhook-logs.php';
        
        // Template functions and loader (for frontend content display)
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'includes/template-functions.php';
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'includes/class-igny8-template-loader.php';
        
        // Admin classes (only in admin)
        if (is_admin()) {
            require_once IGNY8_BRIDGE_PLUGIN_DIR . 'admin/class-admin.php';
            require_once IGNY8_BRIDGE_PLUGIN_DIR . 'admin/class-admin-columns.php';
            require_once IGNY8_BRIDGE_PLUGIN_DIR . 'admin/class-post-meta-boxes.php';
        }
        
        // IGNY8 to WordPress publishing (one-way only)
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'sync/igny8-to-wp.php';
        
        // Data collection
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'data/site-collection.php';
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'data/semantic-mapping.php';
        require_once IGNY8_BRIDGE_PLUGIN_DIR . 'data/link-graph.php';
    }
    
    /**
     * Load plugin textdomain
     */
    public function load_plugin_textdomain() {
        load_plugin_textdomain(
            'igny8-bridge',
            false,
            dirname(IGNY8_BRIDGE_PLUGIN_BASENAME) . '/languages'
        );
    }
    
    /**
     * Initialize plugin functionality
     */
    public function init_plugin() {
        // Register post meta fields
        igny8_register_post_meta();
        
        // Register taxonomies
        igny8_register_taxonomies();
        
        // Initialize admin (if in admin)
        if (is_admin()) {
            Igny8Admin::get_instance();
        }
        
        // Initialize auto-updater
        if (class_exists('Igny8_Updater')) {
            new Igny8_Updater(
                IGNY8_BRIDGE_PLUGIN_FILE,
                IGNY8_BRIDGE_VERSION,
                'https://api.igny8.com/api/plugins/'
            );
        }
    }
    
    /**
     * Plugin activation
     */
    public function activate() {
        // Register post meta and taxonomies
        igny8_register_post_meta();
        igny8_register_taxonomies();
        
        // Flush rewrite rules
        flush_rewrite_rules();
        
        // Set default options
        if (!get_option('igny8_bridge_version')) {
            add_option('igny8_bridge_version', IGNY8_BRIDGE_VERSION);
        }
        
        // Set default post status option
        if (!get_option('igny8_default_post_status')) {
            add_option('igny8_default_post_status', 'draft');
        }
        
        // Register installation with IGNY8 API
        $this->register_installation();
    }
    
    /**
     * Register this plugin installation with IGNY8 API
     */
    private function register_installation() {
        // Get API key and site ID
        $api_key = get_option('igny8_api_key');
        $site_id = get_option('igny8_site_id');
        
        // Skip if not configured yet
        if (empty($api_key) || empty($site_id)) {
            return;
        }
        
        // Register installation
        $response = wp_remote_post(
            'https://api.igny8.com/api/plugins/igny8-wp-bridge/register-installation/',
            array(
                'headers' => array(
                    'Authorization' => 'Bearer ' . $api_key,
                    'Content-Type' => 'application/json',
                ),
                'body' => wp_json_encode(array(
                    'site_id' => intval($site_id),
                    'version' => IGNY8_BRIDGE_VERSION,
                )),
                'timeout' => 15,
            )
        );
        
        // Log result (don't fail activation if this fails)
        if (is_wp_error($response)) {
            error_log('IGNY8 Bridge: Failed to register installation - ' . $response->get_error_message());
        }
    }
    
    /**
     * Plugin deactivation
     */
    public function deactivate() {
        // Flush rewrite rules
        flush_rewrite_rules();
    }
}

/**
 * Initialize plugin
 */
function igny8_bridge_init() {
    return Igny8Bridge::get_instance();
}

// Start the plugin
igny8_bridge_init();