<?php

if ( !defined('ABSPATH' ) )
    exit();

/**
 * Class Translangated_Plugin
 *
 * Singleton. Loads required files, initializes components and hooks methods.
 *
 */
class Translangated_Plugin{
    protected $loader;
    protected $settings;
    protected $translation_render;
    protected $machine_translator;
    protected $machine_translator_logger;
    protected $query;
    protected $language_switcher;
    protected $translation_manager;
    protected $editor_api_regular_strings;
    protected $editor_api_gettext_strings;
    protected $url_converter;
    protected $languages;
    protected $slug_manager;
    protected $upgrade;
    protected $advanced_tab;
    protected $translation_memory;
    protected $machine_translation_tab;
    protected $error_manager;
    protected $string_translation;
    protected $string_translation_api_regular;
    protected $notifications;
    protected $search;
    protected $gettext_manager;
    protected $gettext_scan;
    protected $rewrite_rules;
    protected $check_invalid_text;
    protected $woocommerce_emails;
    protected $preferred_user_language;
    protected $gutenberg_blocks;
    protected $onboarding_setup;
    protected $abilities;
    protected $language_switcher_tab;
    protected $glossary;
    protected $glossary_queries;

    protected $batch_processor;

    public $tp_product_name = array();
    public static $translangated = null;

    /**
     * Get singleton object.
     *
     * @return Translangated_Plugin      Singleton object.
     */
    public static function get_translangated_instance(){
        if ( self::$translangated == null ){
            self::$translangated = new Translangated_Plugin();
        }

        return self::$translangated;
    }

    /**
     * Translangated_Plugin constructor.
     */
    public function __construct() {
        // Early bind to break recursion loop caused by calling get_translangated_instance during construction
        if ( self::$translangated === null ) {
            self::$translangated = $this;
        }

        define( 'TRANSLANGATED_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
        define( 'TRANSLANGATED_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
        define( 'TRANSLANGATED_PLUGIN_BASE', plugin_basename( TRANSLANGATED_FILE ) );
        define( 'TRANSLANGATED_PLUGIN_SLUG', 'translangated' );
        define( 'TRANSLANGATED_PLUGIN_VERSION', '3.3.8' );

	    wp_cache_add_non_persistent_groups(array('translangated'));

        $this->load_dependencies();
        $this->initialize_components();
        $this->set_tp_product_name();
        $this->define_admin_hooks();
        $this->define_frontend_hooks();
    }

    /**
     * Returns particular component by name.
     *
     * @param string $component     'loader' | 'settings' | 'translation_render' |
     *                              'machine_translator' | 'query' | 'language_switcher' |
     *                              'translation_manager' | 'url_converter' | 'languages'
     * @return mixed
     */
    public function get_component( $component ){
        return $this->$component;
    }

    /**
     * Includes necessary files.
     */
    protected function load_dependencies() {
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-settings.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-translation-manager.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-editor-api-regular-strings.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-editor-api-gettext-strings.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-hooks-loader.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-languages.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-translation-render.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-language-switcher-v2.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-machine-translator.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-machine-translator-logger.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/glossary/class-glossary.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/glossary/class-glossary-queries.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/queries/class-query.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/queries/class-gettext-normalization.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/queries/class-gettext-table-creation.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/queries/class-gettext-insert-update.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/queries/class-regular-delete.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/queries/class-gettext-delete.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-url-converter.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-uri.php';
	    require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-upgrade.php';
	    require_once TRANSLANGATED_PLUGIN_DIR . 'includes/upgrade/class-upgrade-tasks-registry.php';
	    require_once TRANSLANGATED_PLUGIN_DIR . 'includes/upgrade/class-batch-processor.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-plugin-notices.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-advanced-tab.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-translation-memory.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-error-manager.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/external-functions.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/compatibility-functions.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/functions.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/custom-language.php';
        if ( ! class_exists( 'Translangated\simple_html_dom' ) ) { // bundled copy, namespaced to Translangated\ so it cannot clash with other copies
            require_once TRANSLANGATED_PLUGIN_DIR . 'assets/lib/simplehtmldom/simple_html_dom.php';
        }
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/shortcodes.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-machine-translation-tab.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/string-translation/class-string-translation.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/string-translation/class-string-translation-helper.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/string-translation/class-gettext-scan.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-search.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/gettext/class-gettext-manager.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/gettext/class-process-gettext.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/gettext/class-plural-forms.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-rewrite-rules.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-check-invalid-text.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-woocommerce-emails.php';
	    require_once TRANSLANGATED_PLUGIN_DIR . 'includes/string-translation/class-string-translation-api-gettext.php';
	    require_once TRANSLANGATED_PLUGIN_DIR . 'includes/string-translation/class-string-translation-api-regular.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-preferred-user-language.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/gutenberg-blocks/class-gutenberg-blocks.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-onboarding.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-abilities.php';
        require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-language-switcher-tab.php';

        if ( did_action( 'elementor/loaded' ) )
            require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-elementor-language-for-blocks.php';
        if ( defined( 'WPB_VC_VERSION' ) ) {
            require_once TRANSLANGATED_PLUGIN_DIR . 'includes/class-wp-bakery-language-for-blocks.php';
        }
    }

    /**
     * Instantiates components.
     */
    protected function initialize_components() {
        $this->loader                     = new Translangated_Hooks_Loader();
        $this->languages                  = new Translangated_Languages();
        $this->settings                   = new Translangated_Settings();

        $this->advanced_tab               = new Translangated_Advanced_Tab($this->settings->get_settings());
        $this->advanced_tab->include_custom_codes();

        $this->machine_translation_tab    = new Translangated_Machine_Translation_Tab( $this->settings->get_settings() );
        $this->machine_translation_tab->load_engines();

        $this->language_switcher_tab      = new Translangated_Language_Switcher_Tab( $this->settings->get_settings() );

        $this->translation_render         = new Translangated_Translation_Render( $this->settings->get_settings() );
        $this->url_converter              = new Translangated_Url_Converter( $this->settings->get_settings() );
        $this->query                      = new Translangated_Query( $this->settings->get_settings() );
        $this->machine_translator_logger  = new Translangated_Machine_Translator_Logger( $this->settings->get_settings() );
        $this->machine_translator         = new Translangated_Machine_Translator( $this->settings->get_settings() ); // Will be overwritten in init_machine_translation with the actual machine translator class. Use this as replacement until then.
        $this->glossary                   = new Translangated_Glossary( $this->settings->get_settings() );
        $this->glossary_queries           = new Translangated_Glossary_Queries( $this->settings->get_settings() );
        $this->translation_manager        = new Translangated_Translation_Manager( $this->settings->get_settings() );
        $this->editor_api_regular_strings = new Translangated_Editor_Api_Regular_Strings( $this->settings->get_settings() );
        $this->editor_api_gettext_strings = new Translangated_Editor_Api_Gettext_Strings( $this->settings->get_settings() );
        $this->notifications              = new Translangated_Trigger_Plugin_Notifications( $this->settings->get_settings() );
        $this->upgrade                    = new Translangated_Upgrade( $this->settings->get_settings() );
        $this->translation_memory         = new Translangated_Translation_Memory( $this->settings->get_settings() );
        $this->error_manager              = new Translangated_Error_Manager( $this->settings->get_settings() );
        $this->string_translation         = new Translangated_String_Translation( $this->settings->get_settings(), $this->loader );
        $this->gettext_scan               = new Translangated_Gettext_Scan( $this->settings->get_settings() );
        $this->search                     = new Translangated_Search( $this->settings->get_settings() );
        $this->gettext_manager            = new Translangated_Gettext_Manager( $this->settings->get_settings() );
        $this->rewrite_rules              = new Translangated_Rewrite_Rules( $this->settings->get_settings() );
        $this->check_invalid_text         = new Translangated_Check_Invalid_Text( );
        $this->woocommerce_emails         = new Translangated_Woocommerce_Emails();
        $this->preferred_user_language    = new Translangated_Preferred_User_Language();
        $this->onboarding_setup           = new Translangated_Onboarding( $this->settings->get_settings() );
        $this->abilities                  = new Translangated_Abilities();
        $this->batch_processor            = new Translangated_Batch_Processor();

        //Gutenberg Blocks
        global $wp_version;
        if ( version_compare( $wp_version, "5.0.0", ">=" ) && apply_filters( 'translangated_initialize_gutenberg_blocks', true ) ) {
            $this->gutenberg_blocks = new Translangated_Gutenberg_Blocks( $this->settings->get_settings() );
        }

    }

    /**Made this function static so it can be called without initializing this class
     *
     * We use this function to detect if we have any addons that require a license
     * Used throughout the plugin to detect the version for notifications, license checks, different messages.
     * Sets $this->tp_product_name that is different from TRANSLANGATED_EDITION constant.
     */
    public static function set_tp_product_name_static(){

        // by default, set tp_product_name is not set.
        // will be overwritten by active plugin names OR based on TRANSLANGATED_EDITION constant
        $tp_product_name = array();

        // the names of your product should match the download names in EDD exactly
        // The order is important because we only match the last one.
        $translangated_all_tp_product_names = array(
            "translangated"  => "Translangated",
            "translangated-business"      => "Translangated Business",
            "translangated-developer"     => "Translangated Developer",
            "translangated-personal"      => "Translangated Personal",
        );
        $active_plugins = get_option('active_plugins');
        $last_found_product_name = array();
        foreach ( $translangated_all_tp_product_names as $translangated_tp_product_folder => $translangated_tp_product_name ){
            foreach( $active_plugins as $active_plugin ){
                if( strpos( $active_plugin, $translangated_tp_product_folder.'/' ) === 0 ){
                    $last_found_product_name = array($translangated_tp_product_folder => $translangated_tp_product_name);
                    break;
                }
            }
        }
        $tp_product_name = $last_found_product_name;


        /*
         * For the dev version simulate the business version
         *
         * TRANSLANGATED_EDITION possible values:
         * Translangated
         * Translangated - Dev
         * Translangated - Personal
         * Translangated - Business
         * Translangated - Developer
         */
        if (defined('TRANSLANGATED_EDITION') && TRANSLANGATED_EDITION === 'Translangated - Dev') {
            $tp_product_name = array("translangated-business" => "Translangated Business");
        } elseif (defined('TRANSLANGATED_EDITION') && TRANSLANGATED_EDITION === 'Translangated') {
            $tp_product_name = array("translangated" => "Translangated");
        } elseif (defined('TRANSLANGATED_EDITION') && TRANSLANGATED_EDITION === 'Translangated - Personal') {
            $tp_product_name = array("translangated-personal" => "Translangated Personal");
        } elseif (defined('TRANSLANGATED_EDITION') && TRANSLANGATED_EDITION === 'Translangated - Business') {
            $tp_product_name = array("translangated-business" => "Translangated Business");
        } elseif (defined('TRANSLANGATED_EDITION') && TRANSLANGATED_EDITION === 'Translangated - Developer') {
            $tp_product_name = array("translangated-developer" => "Translangated Developer");
        }

        // default fallback, if tp_product_name not yet set, force set it to Translangated business
        if (!$tp_product_name) {
            $tp_product_name = array("translangated-business" => "Translangated Business");
        }

        return $tp_product_name;

    }

    // duplicate wrapper for the static function set_tp_product_name_static
    public function set_tp_product_name(){
        $this->tp_product_name = self::set_tp_product_name_static();
    }
    /**
     * Hooks methods used in admin area.
     */
    protected function define_admin_hooks() {
        $this->loader->add_action( 'admin_menu', $this->settings, 'register_menu_page' );
        $this->loader->add_action( 'admin_init', $this->settings, 'register_setting' );
        $this->loader->add_action( 'admin_notices', $this->settings, 'admin_notices' );
        $this->loader->add_action( 'admin_enqueue_scripts', $this->settings, 'enqueue_scripts_and_styles', 10, 1 );
        $this->loader->add_filter( 'plugin_action_links_' . TRANSLANGATED_PLUGIN_BASE , $this->settings, 'plugin_action_links', 10, 1 );
        $this->loader->add_action( 'translangated_settings_navigation_tabs', $this->settings, 'add_navigation_tabs' );
        $this->loader->add_action( 'translangated_settings_navigation_tabs', $this->settings, 'add_svg_icons' );
        $this->loader->add_action( 'translangated_language_selector', $this->settings, 'languages_selector', 10, 1 );

	    $this->loader->add_action( 'translangated_settings_tabs', $this->advanced_tab, 'add_advanced_tab_to_settings', 10, 1 );
	    $this->loader->add_action( 'admin_menu', $this->advanced_tab, 'add_submenu_page_advanced' );
	    $this->loader->add_action( 'translangated_output_advanced_settings_options', $this->advanced_tab, 'output_advanced_options' );
	    $this->loader->add_action( 'translangated_before_output_advanced_settings_options', $this->advanced_tab, 'translangated_advanced_settings_content_table' );
	    $this->loader->add_action( 'admin_init', $this->advanced_tab, 'register_setting' );
	    $this->loader->add_action( 'admin_notices', $this->advanced_tab, 'admin_notices' );

        //Machine Translation tab
        $this->loader->add_action( 'translangated_settings_tabs', $this->machine_translation_tab, 'add_tab_to_navigation', 10, 1 );
        $this->loader->add_action( 'admin_menu',        $this->machine_translation_tab, 'add_submenu_page' );
        $this->loader->add_action( 'admin_init',        $this->machine_translation_tab, 'register_setting' );
        $this->loader->add_action( 'admin_notices',     $this->machine_translation_tab, 'admin_notices' );
        $this->loader->add_action( 'translangated_machine_translation_extra_settings_bottom',     $this->machine_translation_tab, 'display_unsupported_languages' );
        $this->loader->add_action( 'translangated_before_output_machine_translation_settings_options', $this->machine_translation_tab, 'translangated_machine_translation_content_table' );

        //Machine Translation Logger defaults
        $this->loader->add_action( 'translangated_machine_translation_sanitize_settings', $this->machine_translator_logger, 'sanitize_settings', 10, 1 );

        //Glossary substitutions during machine translation
        $this->loader->add_filter( 'translangated_exclude_words_from_automatic_translation', $this->glossary, 'add_excluded_words', 10, 3 );
        $this->loader->add_filter( 'translangated_replace_placeholders_with', $this->glossary, 'apply_replacements', 10, 7 );

        //Glossary settings page
        $this->loader->add_action( 'admin_menu',    $this->glossary, 'add_submenu_page' );
        $this->loader->add_action( 'admin_init',    $this->glossary, 'register_setting' );
        $this->loader->add_action( 'admin_notices', $this->glossary, 'admin_notices' );

        $this->loader->add_action( 'admin_menu',                             $this->glossary_queries, 'add_replace_submenu_page' );
        $this->loader->add_action( 'admin_enqueue_scripts',                  $this->glossary_queries, 'enqueue_scripts' );
        $this->loader->add_action( 'wp_ajax_translangated_glossary_get_terms',         $this->glossary_queries, 'ajax_get_terms' );
        $this->loader->add_action( 'wp_ajax_translangated_glossary_add_term',          $this->glossary_queries, 'add_term' );
        $this->loader->add_action( 'wp_ajax_translangated_glossary_edit_term',         $this->glossary_queries, 'edit_term' );
        $this->loader->add_action( 'wp_ajax_translangated_glossary_delete_term',       $this->glossary_queries, 'delete_term' );
        $this->loader->add_action( 'wp_ajax_translangated_glossary_replace_in_dictionary', $this->glossary_queries, 'replace_in_dictionary' );
        $this->loader->add_action( 'wp_ajax_translangated_glossary_search_dictionary',     $this->glossary_queries, 'search_dictionary' );

        //Error manager hooks
        $this->loader->add_action( 'admin_init', $this->error_manager, 'show_notification_about_errors', 10 );
        $this->loader->add_action( 'admin_menu', $this->error_manager, 'register_submenu_errors_page', 10 );
        $this->loader->add_action( 'translangated_dismiss_notification', $this->error_manager, 'clear_notification_from_db', 10, 2 );
        $this->loader->add_filter( 'translangated_machine_translation_sanitize_settings', $this->error_manager, 'clear_disable_machine_translation_notification_from_db', 10, 1 );
        $this->loader->add_filter( 'translangated_error_manager_page_output', $this->error_manager, 'show_instructions_on_how_to_fix', 7, 1 );
        $this->loader->add_filter( 'translangated_error_manager_page_output', $this->error_manager, 'output_db_errors', 10, 1 );
        $this->loader->add_action('load-admin_page_translangated_error_manager', $this->error_manager, 'disable_error_after_click_link', 10);

        // Front-end dynamic translation (DOM changes). Safe for logged-out visitors
        $this->loader->add_action( 'wp_ajax_nopriv_translangated_get_translations_domchanges', $this->editor_api_regular_strings, 'get_translations_domchanges' );
        $this->loader->add_action( 'wp_ajax_translangated_get_translations_domchanges', $this->editor_api_regular_strings, 'get_translations_domchanges' );

        // Editor-only (authenticated + capability-gated inside get_translations).
	    $this->loader->add_action( 'wp_ajax_translangated_get_translations_regular', $this->editor_api_regular_strings, 'get_translations' );
        $this->loader->add_action( 'wp_ajax_translangated_save_translations_regular', $this->editor_api_regular_strings, 'save_translations' );
        $this->loader->add_action( 'wp_ajax_translangated_split_translation_block', $this->editor_api_regular_strings, 'split_translation_block' );
        $this->loader->add_action( 'wp_ajax_translangated_create_translation_block', $this->editor_api_regular_strings, 'create_translation_block' );

	    $this->loader->add_action( 'wp_ajax_translangated_get_translations_gettext', $this->editor_api_gettext_strings, 'gettext_get_translations' );
	    $this->loader->add_action( 'wp_ajax_translangated_save_translations_gettext', $this->editor_api_gettext_strings, 'gettext_save_translations' );

        $this->loader->add_action( 'wp_ajax_translangated_get_similar_string_translation', $this->translation_memory, 'ajax_get_similar_string_translation' );
	    $this->loader->add_action( 'wp_ajax_translangated_scan_gettext', $this->gettext_scan, 'scan_gettext' );

	    $this->loader->add_filter( 'translangated_get_existing_translations', $this->translation_manager, 'display_possible_db_errors', 20, 3 );
        $this->loader->add_action( 'wp_ajax_translangated_save_editor_user_meta', $this->translation_manager, 'save_editor_user_meta', 10 );
        $this->loader->add_action( 'translangated_editor_notices', $this->translation_manager, 'display_notice_to_upgrade_gettext_in_editor', 10, 1 );
        $this->loader->add_action( 'translangated_editor_notices', $this->translation_manager, 'display_notice_to_upgrade_slugs_in_editor', 10, 1 );


        $this->loader->add_filter( 'translangated_skip_selectors_from_dynamic_translation', $this->translation_render, 'skip_base_attributes_from_dynamic_translation', 10, 1 );

	    $this->loader->add_action( 'admin_menu', $this->upgrade, 'register_menu_page' );
        $this->loader->add_action( 'admin_init', $this->upgrade, 'show_admin_error_message' );
        $this->loader->add_action( 'admin_init', $this->upgrade, 'maybe_start_gettext_tables_optimization_from_notice' );
	    $this->loader->add_action( 'admin_init', $this->upgrade, 'show_admin_notice' );
	    $this->loader->add_action( 'admin_init', $this->upgrade, 'show_notification_about_add_ons_removal' );
        $this->loader->add_action( 'admin_init', $this->upgrade, 'translangated_prepare_options_for_database_optimization' );
	    $this->loader->add_action( 'admin_enqueue_scripts', $this->upgrade, 'enqueue_update_script', 10, 1 );
	    $this->loader->add_action( 'wp_ajax_translangated_update_database', $this->upgrade, 'translangated_update_database' );


        // Filter rewrite rules for .htaccess
        $this->loader->add_filter( 'mod_rewrite_rules', $this->rewrite_rules, 'translangated_remove_language_param', 100 );

        // Add hooks for translating WooCommerce emails
        $this->loader->add_action( 'init', $this->woocommerce_emails, 'initialize_hooks' );


        $this->loader->add_action( 'show_user_profile', $this->preferred_user_language, 'always_use_this_language', 99, 1 );
        $this->loader->add_action( 'edit_user_profile', $this->preferred_user_language, 'always_use_this_language', 99, 1 );
        $this->loader->add_action( 'personal_options_update', $this->preferred_user_language, 'update_profile_fields', 99, 1 );
        $this->loader->add_action( 'edit_user_profile_update', $this->preferred_user_language, 'update_profile_fields', 99, 1 );
        $this->loader->add_filter( 'translangated_wp_languages', $this->languages, 'add_extra_languages', 10, 1 );

    }

    /**
     * Hooks methods used in front-end
     */
    protected function define_frontend_hooks(){

        //we do not need the plugin in cron requests ?
        if( wp_doing_cron() )
            return;

        $this->loader->add_action( 'init', $this->translation_render, 'start_output_buffer', apply_filters( 'translangated_start_output_buffer_priority', 0 ) );
        $this->loader->add_action( 'wp_enqueue_scripts', $this->translation_render, 'enqueue_scripts', 10 );
        $this->loader->add_action( 'wp_enqueue_scripts', $this->translation_render, 'enqueue_dynamic_translation', 1 );
        $this->loader->add_filter( 'wp_redirect', $this->translation_render, 'force_preview_on_url_redirect', 99, 2 );
        $this->loader->add_filter( 'wp_redirect', $this->translation_render, 'force_language_on_form_url_redirect', 99, 2 );
        $this->loader->add_filter( 'translangated_before_translate_content', $this->translation_render, 'force_preview_on_url_in_ajax', 10 );
        $this->loader->add_filter( 'translangated_before_translate_content', $this->translation_render, 'force_form_language_on_url_in_ajax', 20 );
        /* handle CDATA str replacement from the content as it is messing up the renderer */
        $this->loader->add_filter( "translangated_before_translate_content", $this->translation_render, 'handle_cdata', 1000 );
        $this->loader->add_action( "translangated_set_translation_for_attribute", $this->translation_render, 'translate_image_srcset_attributes', 10, 3 );
        $this->loader->add_filter( "translangated_translateable_strings", $this->translation_render, 'antispambot_infinite_detection_fix', 10, 6 );
        $this->loader->add_filter( "translangated_allow_machine_translation_for_string", $this->translation_render, 'allow_machine_translation_for_string', 10, 4 );
        $this->loader->add_filter( "translangated_allow_machine_translation_for_string", $this->translation_render, 'skip_automatic_translation_for_no_auto_translation_selector', 10, 5 );
        $this->loader->add_filter( "translangated_allow_machine_translation_for_string", $this->translation_render, 'skip_strings_that_cannot_be_auto_translated', 10, 5 );
        $this->loader->add_filter( "rest_pre_echo_response", $this->translation_render, 'handle_generic_rest_api_translations', 10, 3 );
        $this->loader->add_filter( "oembed_response_data", $this->translation_render, 'oembed_response_data', 10, 4 );
        $this->loader->add_filter( "translangated_translated_html", $this->translation_render, 'restore_feed_camelcase_tags', 10, 4 );

        /* add custom containers for post content and pots title so we can identify string that are part of them */
        $this->loader->add_filter( "the_content", $this->translation_render, 'wrap_with_post_id', 1000 );
        $this->loader->add_filter( "the_title", $this->translation_render, 'wrap_with_post_id', 1000, 2 );

        // Language switcher
        $this->language_switcher = Translangated_Language_Switcher_V2::instance( $this->settings->get_settings(), $this );
        $this->loader->add_action( 'init', $this->language_switcher, 'init', 1 );

        $this->loader->add_action( 'translangated_translation_manager_footer', $this->translation_manager, 'enqueue_scripts_and_styles' );
        $this->loader->add_filter( 'template_include', $this->translation_manager, 'translation_editor', 99999 );
        $this->loader->add_filter( 'option_date_format', $this->translation_manager, 'filter_the_date' );
        $this->loader->add_action( 'wp_enqueue_scripts', $this->translation_manager, 'enqueue_preview_scripts_and_styles' );
        $this->loader->add_action( 'admin_init', $this->translation_manager, 'maybe_dismiss_admin_bar_notification' );
        $this->loader->add_action( 'admin_bar_menu', $this->translation_manager, 'add_shortcut_to_translation_editor', 90, 1 );
        $this->loader->add_action( 'admin_enqueue_scripts', $this->translation_manager, 'add_styling_to_admin_bar_button', 10 );
        $this->loader->add_action( 'wp_enqueue_scripts', $this->translation_manager, 'add_styling_to_admin_bar_button', 10 );
        $this->loader->add_filter( 'show_admin_bar', $this->translation_manager, 'hide_admin_bar_when_in_editor', 90 );
        $this->loader->add_action( 'enqueue_block_editor_assets', $this->translation_manager, 'translangated_add_shortcut_to_translangated_editor_gutenberg', 90);

        $this->loader->add_filter( 'template_include', $this->string_translation, 'string_translation_editor', 99999 );
        $this->loader->add_filter( 'translangated_string_types', $this->string_translation, 'register_string_types', 10, 1 );
        $this->loader->add_filter( 'translangated_editor_nonces', $this->string_translation, 'add_nonces_for_saving_translation', 10, 1 );
        $this->loader->add_action( 'translangated_string_translation_editor_footer', $this->string_translation, 'enqueue_scripts_and_styles' );
        $this->loader->add_action( 'init', $this->string_translation, 'register_ajax_hooks' );


        $this->loader->add_filter( 'home_url', $this->url_converter, 'add_language_to_home_url', 1, 4 );
        $this->loader->add_action( 'wp_head', $this->url_converter, 'add_hreflang_to_head' );
        $this->loader->add_filter( 'language_attributes', $this->url_converter, 'change_lang_attr_in_html_tag', 10, 1 );
        $this->loader->add_filter('translangated_is_file', $this->url_converter, 'does_url_contains_array', 10, 2);
        $this->loader->add_filter('translangated_hreflang', $this->url_converter, 'replace_iso_2_with_iso_3_for_hreflang', 10, 2);
        $this->loader->add_filter('wp_footer', $this->url_converter, 'add_tp_language_lang_attribute', 1);


        $this->loader->add_filter( 'widget_text', null, 'do_shortcode', 11 );
        $this->loader->add_filter( 'widget_text', null, 'shortcode_unautop', 11 );

        /* handle dynamic texts with gettext */
        $this->loader->add_filter( 'locale', $this->languages, 'change_locale', 99999 );
        $this->loader->add_filter( 'plugin_locale', $this->languages, 'change_locale', 99999 );
        // determine_locale() picks which .mo files load; align it with the TP language so
        // frontend AJAX/REST does not load the user's profile-locale catalog.
        $this->loader->add_filter( 'determine_locale', $this->languages, 'change_determine_locale', 99999 );

        $this->loader->add_action( 'init', $this->gettext_manager, 'create_gettext_translated_global' );
        $this->loader->add_action( 'init', $this->gettext_manager, 'initialize_gettext_processing' );
        $this->loader->add_action( 'translangated_call_gettext_filters', $this->gettext_manager, 'verify_locale_of_loaded_textdomain' );
        $this->loader->add_action( 'shutdown', $this->gettext_manager, 'machine_translate_gettext', 100 );


        /* we need to treat the date_i18n function differently so we remove the gettext wraps */
        $this->loader->add_filter( 'date_i18n', $this->gettext_manager, 'handle_date_i18n_function_for_gettext', 1, 4 );
	    /* strip esc_url() from gettext wraps */
	    $this->loader->add_filter( 'clean_url', $this->gettext_manager, 'translangated_strip_gettext_tags_from_esc_url', 1, 3 );
	    /* strip gettext wraps before sanitize_title(); default-language accent rules for slugs saved on translated pages */
	    $this->loader->add_filter( 'sanitize_title', $this->gettext_manager, 'translangated_sanitize_title', 1, 3 );

        /* define an update hook here */
        $this->loader->add_action( 'plugins_loaded', $this->upgrade, 'check_for_necessary_updates', 10 );

        $this->loader->add_filter( 'translangated_language_name', $this->languages, 'beautify_language_name', 10, 4 );
        $this->loader->add_filter( 'translangated_languages', $this->languages, 'reorder_languages', 10, 2 );

        /* set up wp_mail hooks */
        $this->loader->add_filter( 'wp_mail', $this->translation_render, 'wp_mail_filter', 1 );

        /* fix wptexturize to always replace with the default translated strings */
        $this->loader->add_action( 'gettext_with_context', $this->translation_render, 'fix_wptexturize_characters', 999, 4 );

        /* ?or init ? hook here where you can change the $current_user global */
        $this->loader->add_action( 'init', $this->translation_manager, 'translangated_view_as_user' );

        /**
         * we need to modify the permalinks structure for woocommerce when we switch languages
         * when woo registers post_types and taxonomies in the rewrite parameter of the function they change the slugs of the items (they are localized with _x )
         * we can't flush the permalinks on every page load so we filter the rewrite_rules option
         */

        $this->loader->add_filter( "option_rewrite_rules", $this->url_converter, 'woocommerce_filter_permalinks_on_other_languages' );
        $this->loader->add_filter( "option_woocommerce_permalinks", $this->url_converter, 'woocommerce_filter_permalink_option' );
        $this->loader->add_filter( "pre_update_option_woocommerce_permalinks", $this->url_converter, 'prevent_permalink_update_on_other_languages', 10, 2 );
        $this->loader->add_filter( "pre_update_option_rewrite_rules", $this->url_converter, 'delete_woocommerce_transient_permalink' );

        $this->loader->add_filter( "pre_update_option_rewrite_rules", $this->url_converter, 'prevent_permalink_update_on_other_languages', 10, 2 );

        /* add to the body class the current language */
        $this->loader->add_filter( "body_class", $this->translation_manager, 'add_language_to_body_class' );

        // machine translation
        $this->loader->add_action( 'plugins_loaded', $this, 'init_machine_translation', 2 );

        //search
        $this->loader->add_filter( 'pre_get_posts', $this->search, 'translangated_search_filter', 99999999 );
        $this->loader->add_filter( 'get_search_query', $this->search, 'translangated_search_query', 10 );

        /* prevent indexing edit translation preview pages */
        $this->loader->add_action( 'translangated_head', $this->translation_manager, 'output_noindex_tag', 100 );
        $this->loader->add_action( 'wp_head', $this->translation_manager, 'output_noindex_tag', 100 );
    }

    /**
     * Register hooks to WP.
     */
    public function run() {
    	/*
    	 * Hook that prevents running the hooks. Caution: some TP code like constructors of classes still run!
    	 */
    	$run_tp = apply_filters( 'translangated_allow_tp_to_run', true, $this->loader );
    	if ( $run_tp ) {
		    $this->loader->run();
	    }
    }

    public function init_machine_translation(){
        $this->machine_translator = $this->machine_translation_tab->get_active_engine();
    }
}