<?php

if (!defined('ABSPATH')) {
    exit;
}

class Canto_Editor_Integration {
    private static $_instance = null;
    private $supported_editors = array();

    public static function instance() {
        if (is_null(self::$_instance)) {
            self::$_instance = new self();
        }
        return self::$_instance;
    }

    public function __construct() {
        // Initialize supported editors
        $this->supported_editors = array(
            'elementor' => array(
                'check' => 'elementor/loaded',
                'init' => array($this, 'init_elementor')
            ),
            'divi' => array(
                'init' => array($this, 'init_divi')
            ),
            'wpbakery' => array(
                'init' => array($this, 'init_wpbakery')
            ),
            'beaver' => array(
                'init' => array($this, 'init_beaver')
            )
        );

        // Initialize editor integrations
        add_action('init', array($this, 'initialize_editors'), 20);
        
        // Enqueue common assets for all editors
        add_action('admin_enqueue_scripts', array($this, 'enqueue_common_assets'));
        add_action('wp_enqueue_scripts', array($this, 'enqueue_common_assets'));
    }

    public function initialize_editors() {
        foreach ($this->supported_editors as $editor => $config) {
            if ($this->is_editor_active($editor)) {
                call_user_func($config['init']);
            }
        }
    }

    private function is_editor_active($editor) {
        if (!isset($this->supported_editors[$editor])) {
            return false;
        }

        switch ($editor) {
            case 'elementor':
                if (!did_action($this->supported_editors[$editor]['check'])) {
                    return false;
                }
                if (class_exists('\Elementor\Plugin') && isset(\Elementor\Plugin::$instance->editor)) {
                    return \Elementor\Plugin::$instance->editor->is_edit_mode()
                        || \Elementor\Plugin::$instance->preview->is_preview_mode();
                }
                return false;
            case 'divi':
                // et_pb_is_pagebuilder_used() checks edit context; fall back to the
                // simpler function_exists guard so we don't break non-edit admin pages.
                return function_exists('et_builder_is_active') &&
                    (is_admin() || (function_exists('et_fb_is_enabled') && et_fb_is_enabled()));
            case 'wpbakery':
                return function_exists('vc_is_inline') && vc_is_inline();
            case 'beaver':
                return defined('FL_BUILDER_VERSION') &&
                    class_exists('FLBuilderModel') &&
                    FLBuilderModel::is_builder_active();
            default:
                return false;
        }
    }

    public function enqueue_common_assets() {
        // Only enqueue if we're in an editor context
        if (!$this->is_any_editor_active()) {
            return;
        }

        // Enqueue React and ReactDOM first
        wp_enqueue_script(
            'react',
            CANTO_FBC_URL . 'public/assets/react.production.min.js',
            array(),
            '17.0.2',
            true
        );

        wp_enqueue_script(
            'react-dom',
            CANTO_FBC_URL . 'public/assets/react-dom.production.min.js',
            array('react'),
            '17.0.2',
            true
        );

        // Enqueue vendor scripts
        wp_enqueue_script(
            'canto-editor-vendor',
            CANTO_FBC_URL . 'public/assets/app.vendor.bundle.js',
            array('jquery', 'react', 'react-dom'),
            '1.0.0',
            true
        );

        // Then enqueue the main bundle
        wp_enqueue_script(
            'canto-editor-bundle',
            CANTO_FBC_URL . 'public/assets/app.bundle.js',
            array('jquery', 'canto-editor-vendor'),
            '1.0.0',
            true
        );

        // Then enqueue our core editor integration
        wp_enqueue_script(
            'canto-editor-core',
            CANTO_FBC_URL . 'assets/js/editor-core.js',
            array('jquery', 'canto-editor-vendor', 'canto-editor-bundle'),
            '1.0.0',
            true
        );

        // Add configuration
        $config = array(
            'ajaxurl' => admin_url('admin-ajax.php'),
            'nonce' => wp_create_nonce('canto_editor_nonce'),
            'FBC_URL' => CANTO_FBC_URL,
            'FBC_PATH' => CANTO_FBC_PATH,
            'app_api' => get_option('fbc_app_api', 'canto.com'),
            'subdomain' => get_option('fbc_flight_domain'),
            'token' => get_option('fbc_app_token'),
            'initialized' => false
        );

        wp_localize_script('canto-editor-core', 'cantoEditorConfig', $config);

        // Add initialization check
        wp_add_inline_script('canto-editor-core', '
            window.cantoEditorInitCheck = function() {
                return typeof React !== "undefined" && 
                       typeof ReactDOM !== "undefined" &&
                       typeof window.canto !== "undefined" && 
                       typeof window.canto.openDialog === "function";
            };
        ', 'before');
    }

    private function is_any_editor_active() {
        foreach ($this->supported_editors as $editor => $config) {
            if ($this->is_editor_active($editor)) {
                return true;
            }
        }
        return false;
    }

    // Elementor Integration
    public function init_elementor() {
        require_once CANTO_FBC_PATH . 'includes/elementor/class-canto-elementor.php';
        Canto_Elementor::instance();
    }

    // Divi Integration
    public function init_divi() {
        add_action('et_builder_ready', array($this, 'load_divi_integration'));
    }

    public function load_divi_integration() {
        wp_enqueue_script(
            'canto-divi-integration',
            CANTO_FBC_URL . 'assets/js/divi-integration.js',
            array('jquery', 'canto-editor-core'),
            '1.0.0',
            true
        );
    }

    // WPBakery Integration
    public function init_wpbakery() {
        add_action('vc_after_init', array($this, 'load_wpbakery_integration'));
    }

    public function load_wpbakery_integration() {
        wp_enqueue_script(
            'canto-wpbakery-integration',
            CANTO_FBC_URL . 'assets/js/wpbakery-integration.js',
            array('jquery', 'canto-editor-core'),
            '1.0.0',
            true
        );
    }

    // Beaver Builder Integration
    public function init_beaver() {
        add_action('fl_builder_before_init', array($this, 'load_beaver_integration'));
    }

    public function load_beaver_integration() {
        wp_enqueue_script(
            'canto-beaver-integration',
            CANTO_FBC_URL . 'assets/js/beaver-integration.js',
            array('jquery', 'canto-editor-core'),
            '1.0.0',
            true
        );
    }
}