<?php
/**
 * Plugin Name: AF Translate
 * Plugin URI:  https://afthemes.com/
 * Author URI:  https://afthemes.com/
 * Description: AI Automated Translation for WordPress plugins and themes in your dashboard. Bulk localize your site safely in the background using OpenAI, Claude, and DeepL.
 * Version:     3.0.0
 * Author:      AF Themes
 * License:     GPL2
 * Text Domain: af-translate
 * Domain Path: /languages
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

// Establish strict global boundary constraints
final class AF_Translate {

    /**
     * Singleton instance holding tracking registration context.
     */
    private static $instance = null;

    /**
     * Main Class Instance Accessor Wrapper.
     */
    public static function instance() {
        if ( null === self::$instance ) {
            self::$instance = new self();
        }
        return self::$instance;
    }

    /**
     * Clones are locked down to secure the structural lifecycle.
     */
    public function __clone() {
        _doing_it_wrong( __FUNCTION__, esc_html__( 'Cheatin&#8217; uh?', 'af-translate' ), '1.0.0' );
    }

    /**
     * Unserializing instances is disabled for security containment.
     */
    public function __wakeup() {
        _doing_it_wrong( __FUNCTION__, esc_html__( 'Cheatin&#8217; uh?', 'af-translate' ), '1.0.0' );
    }

    /**
     * Construct engine lifecycle configurations.
     */
    private function __construct() {
        $this->define_constants();
        $this->load_dependencies();
        $this->init_hooks();
    }

    /**
     * System path definition maps.
     */
    private function define_constants() {
        if ( ! defined( 'AF_TRANSLATE_FILE' ) ) {
            define( 'AF_TRANSLATE_FILE',__FILE__ );
        }
        if ( ! defined( 'AF_TRANSLATE_BASE' ) ) {
            define( 'AF_TRANSLATE_BASE', plugin_basename(AF_TRANSLATE_FILE));
        }
        if ( ! defined( 'AF_TRANSLATE_DIR' ) ) {
            define( 'AF_TRANSLATE_DIR', dirname(AF_TRANSLATE_FILE));
        }
        if ( ! defined( 'AF_TRANSLATE_PATH' ) ) {
            define( 'AF_TRANSLATE_PATH', plugin_dir_path( __FILE__ ) );
        }
        if ( ! defined( 'AF_TRANSLATE_URL' ) ) {
            define( 'AF_TRANSLATE_URL', plugin_dir_url( __FILE__ ) );
        }       

    }

    /**
     * High-performance memory-optimized asset loading schema.
     */
    private function load_dependencies() {
        // Shared global multi-dimensional localization data configurations
        require_once AF_TRANSLATE_PATH . 'includes/class-i18n-data.php';
        require_once AF_TRANSLATE_PATH . 'includes/class-af-translate.php';

        // Critical Performance Safeguard: Execute heavy analysis suites only on back-end requests
        if ( is_admin() ) {
            require_once AF_TRANSLATE_PATH . 'includes/class-bundle-analyzer.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-translate-scanner.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-project-config.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-project-ajax.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-editor-view.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-file-pot-generator.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-file-compiler.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-file-stream.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-file-ajax.php';

            require_once AF_TRANSLATE_PATH . 'includes/class-editor-path-validator.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-editor-po-processor.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-editor-ajax-handler.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-translate-ai-engine.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-translate-ai-ajax.php';
            require_once AF_TRANSLATE_PATH . 'includes/class-translate-ai-bridge.php';
        }
    }

    /**
     * Standard runtime execution initialization hooks.
     */
    private function init_hooks() {
        add_action( 'plugins_loaded', array( $this, 'boot_core_engine' ) );

        /**
         * CRITICAL GLOBAL HOOK: Intercepts and redirects MO file loading metrics.
         * Must run globally (outside of is_admin) so frontend visitors see custom strings.
         */
        add_filter( 'load_textdomain_mofile', array( $this, 'af_translate_load_from_uploads' ), 10, 2 );

        add_filter('plugin_row_meta', [$this, 'plugin_row_meta'], 10, 2);
        add_filter('plugin_action_links_' . AF_TRANSLATE_BASE, [$this, 'plugin_action_links']);
    }

    public function plugin_action_links($links)
    {
      $settings_link = sprintf('<a href="%1$s">%2$s</a>', admin_url('admin.php?page=af-translate'), esc_html__('Get Started', 'af-translate'));

      array_unshift($links, $settings_link);

      $links['af-translate-ai-connecter'] = sprintf('<a href="%1$s">%2$s</a>', admin_url('admin.php?page=af-translate-ai-connecter'), esc_html__('AI Settings', 'af-translate'));

      return $links;
    }
    public function plugin_row_meta($plugin_meta, $plugin_file)
    {
      if (AF_TRANSLATE_BASE === $plugin_file) {
        $row_meta = [
          'af-translate-plugins' => sprintf('<a href="%1$s">%2$s</a>', admin_url('admin.php?page=af-translate-plugins'), esc_html__('Translate Plugins', 'af-translate')),
          'af-translate-themes' => sprintf('<a href="%1$s">%2$s</a>', admin_url('admin.php?page=af-translate-themes'), esc_html__('Translate Themes', 'af-translate')),
          
        ];

        $plugin_meta = array_merge($plugin_meta, $row_meta);
      }

      return $plugin_meta;
    }

    /**
     * Dynamic Translation Interceptor targeting the Writable Uploads Sandbox
     * Automatically handles text-domain isolation for both themes and plugins.
     */
    public function af_translate_load_from_uploads( $mofile, $domain ) {
        // Skip core WordPress overrides
        if ( 'default' === $domain ) {
            return $mofile;
        }

        // Extract the locale from the current file string (e.g., "es_ES" out of "domain-es_ES.mo")
        $filename = basename( $mofile );
        $locale   = str_replace( array( $domain . '-', '.mo' ), '', $filename );

        $upload_dir = wp_upload_dir();
        $base_path  = $upload_dir['basedir'] . '/af-translate/';

        // 1. Check inside the custom isolated themes sandbox subdirectory
        $custom_theme_mofile = $base_path . 'themes/' . $domain . '-' . $locale . '.mo';
        if ( file_exists( $custom_theme_mofile ) ) {
            return $custom_theme_mofile;
        }

        // 2. Check inside the custom isolated plugins sandbox subdirectory
        $custom_plugin_mofile = $base_path . 'plugins/' . $domain . '-' . $locale . '.mo';
        if ( file_exists( $custom_plugin_mofile ) ) {
            return $custom_plugin_mofile;
        }

        // Fallback to theme or core system files if no custom upload translation exists
        return $mofile;
    }

    /**
     * Instantiates the foundational translation controller framework safely.
     */
    public function boot_core_engine() {
        // 1. Boot the core foundational translation framework
        if ( class_exists( 'AF_Translate_Core' ) ) {
            new AF_Translate_Core();
        }

        // 2. Ignite the streaming download hooks for admin-post.php
        if ( class_exists( 'AF_Translate_File_Streaming' ) ) {
            AF_Translate_File_Streaming::init_hooks();
        }

        // 3. Editor Workbench AJAX Actions
        if ( class_exists( 'AF_Translate_Editor_AJAX_Handler' ) ) {
            add_action( 'wp_ajax_af_translate_save_pot', array( 'AF_Translate_Editor_AJAX_Handler', 'handle_save' ) );
        }

        // 4. Extended Utilities AJAX Actions
        if ( class_exists( 'AF_Translate_Ajax_Extended' ) ) {
            add_action( 'wp_ajax_af_translate_init_locale', array( 'AF_Translate_Ajax_Extended', 'ajax_init_po_handler' ) );
            add_action( 'wp_ajax_af_translate_import_po', array( 'AF_Translate_Ajax_Extended', 'ajax_import_po_handler' ) );
        }

        /**
         * POLYMORPHIC ROUTER: Intercepts the shared action hook collision
         * and safely directs traffic to the correct engine component.
         */
        add_action( 'wp_ajax_af_translate_sync_po', array( $this, 'route_sync_po_requests' ) );
    }

    /**
     * Polymorphic AJAX Router to handle shared action hook collisions safely.
     * Evaluates parameters to differentiate between the editor screen and portability screen.
     */
    public function route_sync_po_requests() {
        // phpcs:ignore WordPress.Security.NonceVerification.Missing -- Operational routing controller check; verification is safely deferred to downstream workbench sync execution context handlers.
        if ( isset( $_POST['po_file_target'] ) && class_exists( 'AF_Translate_Editor_AJAX_Handler' ) ) {
            AF_Translate_Editor_AJAX_Handler::handle_sync();
            exit;
        }

        // phpcs:ignore WordPress.Security.NonceVerification.Missing -- Operational routing controller check; verification is safely deferred to downstream module dashboard sync handlers.
        if ( isset( $_POST['component'] ) && class_exists( 'AF_Translate_Ajax_Extended' ) ) {
            AF_Translate_Ajax_Extended::ajax_sync_po_handler();
            exit;
        }

        wp_send_json_error( esc_html__( 'Invalid transaction routing parameter signature.', 'af-translate' ) );
    }
}

/**
 * Accessor function shortcut to instantiate the architectural controller context.
 *
 * @return AF_Translate
 */
function af_translate_engine() {
    return AF_Translate::instance();
}

// Ignite operational plugin setup
af_translate_engine();