<?php



#[AllowDynamicProperties]
class WP_Textdomain_Registry {
	
	protected $all = array();

	
	protected $current = array();

	
	protected $custom_paths = array();

	
	protected $cached_mo_files = array();

	
	protected $domains_with_translations = array();

	
	public function init() {
		add_action( 'upgrader_process_complete', array( $this, 'invalidate_mo_files_cache' ), 10, 2 );
	}

	
	public function get( $domain, $locale ) {
		$path = $this->all[ $domain ][ $locale ] ?? $this->get_path_from_lang_dir( $domain, $locale );

		
		return apply_filters( 'lang_dir_for_domain', $path, $domain, $locale );
	}

	
	public function has( $domain ) {
		return (
			isset( $this->current[ $domain ] ) ||
			empty( $this->all[ $domain ] ) ||
			in_array( $domain, $this->domains_with_translations, true )
		);
	}

	
	public function set( $domain, $locale, $path ) {
		$this->all[ $domain ][ $locale ] = $path ? rtrim( $path, '/' ) . '/' : false;
		$this->current[ $domain ]        = $this->all[ $domain ][ $locale ];
	}

	
	public function set_custom_path( $domain, $path ) {
		// If just-in-time loading was triggered before, reset the entry so it can be tried again.

		if ( isset( $this->all[ $domain ] ) ) {
			$this->all[ $domain ] = array_filter( $this->all[ $domain ] );
		}

		if ( empty( $this->current[ $domain ] ) ) {
			unset( $this->current[ $domain ] );
		}

		$this->custom_paths[ $domain ] = rtrim( $path, '/' );
	}

	
	public function get_language_files_from_path( $path ) {
		$path = rtrim( $path, '/' ) . '/';

		
		$files = apply_filters( 'pre_get_language_files_from_path', null, $path );

		if ( null !== $files ) {
			return $files;
		}

		$cache_key = md5( $path );
		$files     = wp_cache_get( $cache_key, 'translation_files' );

		if ( false === $files ) {
			$files = glob( $path . '*.mo' );
			if ( false === $files ) {
				$files = array();
			}

			$php_files = glob( $path . '*.l10n.php' );
			if ( is_array( $php_files ) ) {
				$files = array_merge( $files, $php_files );
			}

			wp_cache_set( $cache_key, $files, 'translation_files', HOUR_IN_SECONDS );
		}

		return $files;
	}

	
	public function invalidate_mo_files_cache( $upgrader, $hook_extra ) {
		if (
			! isset( $hook_extra['type'] ) ||
			'translation' !== $hook_extra['type'] ||
			array() === $hook_extra['translations']
		) {
			return;
		}

		$translation_types = array_unique( wp_list_pluck( $hook_extra['translations'], 'type' ) );

		foreach ( $translation_types as $type ) {
			switch ( $type ) {
				case 'plugin':
					wp_cache_delete( md5( WP_LANG_DIR . '/plugins/' ), 'translation_files' );
					break;
				case 'theme':
					wp_cache_delete( md5( WP_LANG_DIR . '/themes/' ), 'translation_files' );
					break;
				default:
					wp_cache_delete( md5( WP_LANG_DIR . '/' ), 'translation_files' );
					break;
			}
		}
	}

	
	private function get_paths_for_domain( $domain ) {
		$locations = array(
			WP_LANG_DIR . '/plugins',
			WP_LANG_DIR . '/themes',
		);

		if ( isset( $this->custom_paths[ $domain ] ) ) {
			$locations[] = $this->custom_paths[ $domain ];
		}

		return $locations;
	}

	
	private function get_path_from_lang_dir( $domain, $locale ) {
		$locations = $this->get_paths_for_domain( $domain );

		$found_location = false;

		foreach ( $locations as $location ) {
			$files = $this->get_language_files_from_path( $location );

			$mo_path  = "$location/$domain-$locale.mo";
			$php_path = "$location/$domain-$locale.l10n.php";

			foreach ( $files as $file_path ) {
				if (
					! in_array( $domain, $this->domains_with_translations, true ) &&
					str_starts_with( str_replace( "$location/", '', $file_path ), "$domain-" )
				) {
					$this->domains_with_translations[] = $domain;
				}

				if ( $file_path === $mo_path || $file_path === $php_path ) {
					$found_location = rtrim( $location, '/' ) . '/';
					break 2;
				}
			}
		}

		if ( $found_location ) {
			$this->set( $domain, $locale, $found_location );

			return $found_location;
		}

		/*
		 * If no path is found for the given locale and a custom path has been set
		 * using load_plugin_textdomain/load_theme_textdomain, use that one.
		 */
		if ( isset( $this->custom_paths[ $domain ] ) ) {
			$fallback_location = rtrim( $this->custom_paths[ $domain ], '/' ) . '/';
			$this->set( $domain, $locale, $fallback_location );
			return $fallback_location;
		}

		$this->set( $domain, $locale, false );

		return false;
	}
}