<?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:     4.0.0
 * 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__));
        }

        // Add an optional indicator lookup helper
        if (! defined('AF_TRANSLATE_IS_PRO')) {
            define('AF_TRANSLATE_IS_PRO', class_exists('AF_Translate_Pro') || defined('AF_TRANSLATE_PRO_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'), 1, 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;
    }

    public function af_translate_load_from_uploads($mofile, $domain)
    {
        // error_log("WATCHDOG: WordPress is attempting to load translations for domain: [$domain] | File: [$mofile]");
        // if ($domain === 'shopical-pro') {
        //         error_log("AF Translate FOUND IT: Domain [$domain] requested file: [$mofile]");
        //     }
        //     return $mofile;    

        // 1. Skip core translation
        if ('default' === $domain) {
            return $mofile;
        }

        $filename = basename($mofile);

        // 2. Robust Regex: matches either "domain-locale.mo" or "locale.mo"
        // This safely extracts the locale even if the domain prefix is missing.
        $pattern = '/^(?:' . preg_quote($domain, '/') . '-)?(.+)\.mo$/';

        if (!preg_match($pattern, $filename, $matches)) {
            return $mofile; // Exit if filename format is unexpected
        }

        $locale = $matches[1];
        $upload_dir = wp_upload_dir();
        $base_path  = $upload_dir['basedir'] . '/af-translate/';

        // 3. Construct the exact filename we are looking for
        // This ensures we always look for "domain-locale.mo"
        $target_filename = $domain . '-' . $locale . '.mo';

        $directories = [
            $base_path . 'themes/',
            $base_path . 'plugins/',
            $base_path . 'core/'
        ];


        foreach ($directories as $dir) {

            // ADD THIS LOG:
            // error_log("AF Translate DEBUG: Searching for [$target_filename] in [$dir]");

            $found = $this->find_file_case_insensitive($dir, $target_filename);
            if ($found) {
                // DEBUG: See if we are actually swapping the file
                // error_log("AF Translate SUCCESS: Swapping $mofile with $found");
                return $found;
            }
        }

        return $mofile;
    }

    /**
     * Case-insensitive file search helper
     */
    private function find_file_case_insensitive($directory, $filename)
    {
        if (!is_dir($directory)) return false;

        // Scan directory and compare names using case-insensitive comparison
        $files = scandir($directory);
        foreach ($files as $file) {
            if (strcasecmp($file, $filename) === 0) {
                return $directory . $file;
            }
        }
        return false;
    }

    /**
     * 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'));

        /**
         * Freemius.
         */
        if (!class_exists('AF_Translate_Pro')) {
            require_once(AF_TRANSLATE_DIR . '/freemius.php');
        }
    }

    /**
     * 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();