<?php



function get_locale() {
	global $locale, $wp_local_package;

	if ( isset( $locale ) ) {
		
		return apply_filters( 'locale', $locale );
	}

	if ( isset( $wp_local_package ) ) {
		$locale = $wp_local_package;
	}

	// WPLANG was defined in wp-config.
	if ( defined( 'WPLANG' ) ) {
		$locale = WPLANG;
	}

	// If multisite, check options.
	if ( is_multisite() ) {
		// Don't check blog option when installing.
		if ( wp_installing() ) {
			$ms_locale = get_site_option( 'WPLANG' );
		} else {
			$ms_locale = get_option( 'WPLANG' );
			if ( false === $ms_locale ) {
				$ms_locale = get_site_option( 'WPLANG' );
			}
		}

		if ( false !== $ms_locale ) {
			$locale = $ms_locale;
		}
	} else {
		$db_locale = get_option( 'WPLANG' );
		if ( false !== $db_locale ) {
			$locale = $db_locale;
		}
	}

	if ( empty( $locale ) ) {
		$locale = 'en_US';
	}

	
	return apply_filters( 'locale', $locale );
}


function get_user_locale( $user = 0 ) {
	$user_object = false;

	if ( 0 === $user && function_exists( 'wp_get_current_user' ) ) {
		$user_object = wp_get_current_user();
	} elseif ( $user instanceof WP_User ) {
		$user_object = $user;
	} elseif ( $user && is_numeric( $user ) ) {
		$user_object = get_user_by( 'id', $user );
	}

	if ( ! $user_object ) {
		return get_locale();
	}

	$locale = $user_object->locale;

	return $locale ? $locale : get_locale();
}


function determine_locale() {
	
	$determined_locale = apply_filters( 'pre_determine_locale', null );

	if ( $determined_locale && is_string( $determined_locale ) ) {
		return $determined_locale;
	}

	if (
		isset( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] &&
		( ! empty( $_GET['wp_lang'] ) || ! empty( $_COOKIE['wp_lang'] ) )
	) {
		if ( ! empty( $_GET['wp_lang'] ) ) {
			$determined_locale = sanitize_locale_name( $_GET['wp_lang'] );
		} else {
			$determined_locale = sanitize_locale_name( $_COOKIE['wp_lang'] );
		}
	} elseif (
		is_admin() ||
		( isset( $_GET['_locale'] ) && 'user' === $_GET['_locale'] && wp_is_json_request() )
	) {
		$determined_locale = get_user_locale();
	} elseif (
		( ! empty( $_REQUEST['language'] ) || isset( $GLOBALS['wp_local_package'] ) )
		&& wp_installing()
	) {
		if ( ! empty( $_REQUEST['language'] ) ) {
			$determined_locale = sanitize_locale_name( $_REQUEST['language'] );
		} else {
			$determined_locale = $GLOBALS['wp_local_package'];
		}
	}

	if ( ! $determined_locale ) {
		$determined_locale = get_locale();
	}

	
	return apply_filters( 'determine_locale', $determined_locale );
}


function translate( $text, $domain = 'default' ) {
	$translations = get_translations_for_domain( $domain );
	$translation  = $translations->translate( $text );

	
	$translation = apply_filters( 'gettext', $translation, $text, $domain );

	
	$translation = apply_filters( "gettext_{$domain}", $translation, $text, $domain );

	return $translation;
}


function before_last_bar( $text ) {
	$last_bar = strrpos( $text, '|' );
	if ( false === $last_bar ) {
		return $text;
	} else {
		return substr( $text, 0, $last_bar );
	}
}


function translate_with_gettext_context( $text, $context, $domain = 'default' ) {
	$translations = get_translations_for_domain( $domain );
	$translation  = $translations->translate( $text, $context );

	
	$translation = apply_filters( 'gettext_with_context', $translation, $text, $context, $domain );

	
	$translation = apply_filters( "gettext_with_context_{$domain}", $translation, $text, $context, $domain );

	return $translation;
}


function __( $text, $domain = 'default' ) {
	return translate( $text, $domain );
}


function esc_attr__( $text, $domain = 'default' ) {
	return esc_attr( translate( $text, $domain ) );
}


function esc_html__( $text, $domain = 'default' ) {
	return esc_html( translate( $text, $domain ) );
}


function _e( $text, $domain = 'default' ) {
	echo translate( $text, $domain );
}


function esc_attr_e( $text, $domain = 'default' ) {
	echo esc_attr( translate( $text, $domain ) );
}


function esc_html_e( $text, $domain = 'default' ) {
	echo esc_html( translate( $text, $domain ) );
}


function _x( $text, $context, $domain = 'default' ) {
	return translate_with_gettext_context( $text, $context, $domain );
}


function _ex( $text, $context, $domain = 'default' ) {
	echo _x( $text, $context, $domain );
}


function esc_attr_x( $text, $context, $domain = 'default' ) {
	return esc_attr( translate_with_gettext_context( $text, $context, $domain ) );
}


function esc_html_x( $text, $context, $domain = 'default' ) {
	return esc_html( translate_with_gettext_context( $text, $context, $domain ) );
}


function _n( $single, $plural, $number, $domain = 'default' ) {
	$translations = get_translations_for_domain( $domain );
	$translation  = $translations->translate_plural( $single, $plural, $number );

	
	$translation = apply_filters( 'ngettext', $translation, $single, $plural, $number, $domain );

	
	$translation = apply_filters( "ngettext_{$domain}", $translation, $single, $plural, $number, $domain );

	return $translation;
}


function _nx( $single, $plural, $number, $context, $domain = 'default' ) {
	$translations = get_translations_for_domain( $domain );
	$translation  = $translations->translate_plural( $single, $plural, $number, $context );

	
	$translation = apply_filters( 'ngettext_with_context', $translation, $single, $plural, $number, $context, $domain );

	
	$translation = apply_filters( "ngettext_with_context_{$domain}", $translation, $single, $plural, $number, $context, $domain );

	return $translation;
}


function _n_noop( $singular, $plural, $domain = null ) {
	return array(
		0          => $singular,
		1          => $plural,
		'singular' => $singular,
		'plural'   => $plural,
		'context'  => null,
		'domain'   => $domain,
	);
}


function _nx_noop( $singular, $plural, $context, $domain = null ) {
	return array(
		0          => $singular,
		1          => $plural,
		2          => $context,
		'singular' => $singular,
		'plural'   => $plural,
		'context'  => $context,
		'domain'   => $domain,
	);
}


function translate_nooped_plural( $nooped_plural, $count, $domain = 'default' ) {
	if ( $nooped_plural['domain'] ) {
		$domain = $nooped_plural['domain'];
	}

	if ( $nooped_plural['context'] ) {
		return _nx( $nooped_plural['singular'], $nooped_plural['plural'], $count, $nooped_plural['context'], $domain );
	} else {
		return _n( $nooped_plural['singular'], $nooped_plural['plural'], $count, $domain );
	}
}


function load_textdomain( $domain, $mofile, $locale = null ) {
	
	global $l10n, $l10n_unloaded, $wp_textdomain_registry;

	$l10n_unloaded = (array) $l10n_unloaded;

	if ( ! is_string( $domain ) ) {
		return false;
	}

	
	$loaded = apply_filters( 'pre_load_textdomain', null, $domain, $mofile, $locale );
	if ( null !== $loaded ) {
		if ( true === $loaded ) {
			unset( $l10n_unloaded[ $domain ] );
		}

		return $loaded;
	}

	
	$plugin_override = apply_filters( 'override_load_textdomain', false, $domain, $mofile, $locale );

	if ( true === (bool) $plugin_override ) {
		unset( $l10n_unloaded[ $domain ] );

		return true;
	}

	
	do_action( 'load_textdomain', $domain, $mofile );

	
	$mofile = apply_filters( 'load_textdomain_mofile', $mofile, $domain );

	if ( ! $locale ) {
		$locale = determine_locale();
	}

	$i18n_controller = WP_Translation_Controller::get_instance();

	// Ensures the correct locale is set as the current one, in case it was filtered.
	$i18n_controller->set_locale( $locale );

	
	$preferred_format = apply_filters( 'translation_file_format', 'php', $domain );
	if ( ! in_array( $preferred_format, array( 'php', 'mo' ), true ) ) {
		$preferred_format = 'php';
	}

	$translation_files = array();

	if ( 'mo' !== $preferred_format ) {
		$translation_files[] = substr_replace( $mofile, ".l10n.$preferred_format", - strlen( '.mo' ) );
	}

	$translation_files[] = $mofile;

	foreach ( $translation_files as $file ) {
		
		$file = (string) apply_filters( 'load_translation_file', $file, $domain, $locale );

		$success = $i18n_controller->load_file( $file, $domain, $locale );

		if ( $success ) {
			if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof MO ) {
				$i18n_controller->load_file( $l10n[ $domain ]->get_filename(), $domain, $locale );
			}

			// Unset NOOP_Translations reference in get_translations_for_domain().
			unset( $l10n[ $domain ] );

			$l10n[ $domain ] = new WP_Translations( $i18n_controller, $domain );

			$wp_textdomain_registry->set( $domain, $locale, dirname( $file ) );

			return true;
		}
	}

	return false;
}


function unload_textdomain( $domain, $reloadable = false ) {
	global $l10n, $l10n_unloaded;

	$l10n_unloaded = (array) $l10n_unloaded;

	
	$plugin_override = apply_filters( 'override_unload_textdomain', false, $domain, $reloadable );

	if ( $plugin_override ) {
		if ( ! $reloadable ) {
			$l10n_unloaded[ $domain ] = true;
		}

		return true;
	}

	
	do_action( 'unload_textdomain', $domain, $reloadable );

	// Since multiple locales are supported, reloadable text domains don't actually need to be unloaded.
	if ( ! $reloadable ) {
		WP_Translation_Controller::get_instance()->unload_textdomain( $domain );
	}

	if ( isset( $l10n[ $domain ] ) ) {
		if ( $l10n[ $domain ] instanceof NOOP_Translations ) {
			unset( $l10n[ $domain ] );

			return false;
		}

		unset( $l10n[ $domain ] );

		if ( ! $reloadable ) {
			$l10n_unloaded[ $domain ] = true;
		}

		return true;
	}

	return false;
}


function load_default_textdomain( $locale = null ) {
	if ( null === $locale ) {
		$locale = determine_locale();
	}

	// Unload previously loaded strings so we can switch translations.
	unload_textdomain( 'default', true );

	$return = load_textdomain( 'default', WP_LANG_DIR . "/$locale.mo", $locale );

	if ( ( is_multisite() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) && ! file_exists( WP_LANG_DIR . "/admin-$locale.mo" ) ) {
		load_textdomain( 'default', WP_LANG_DIR . "/ms-$locale.mo", $locale );
		return $return;
	}

	if ( is_admin() || wp_installing() || ( defined( 'WP_REPAIRING' ) && WP_REPAIRING ) || doing_action( 'wp_maybe_auto_update' ) ) {
		load_textdomain( 'default', WP_LANG_DIR . "/admin-$locale.mo", $locale );
	}

	if ( is_network_admin() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) {
		load_textdomain( 'default', WP_LANG_DIR . "/admin-network-$locale.mo", $locale );
	}

	return $return;
}


function load_plugin_textdomain( $domain, $deprecated = false, $plugin_rel_path = false ) {
	
	
	global $wp_textdomain_registry, $l10n;

	if ( ! is_string( $domain ) ) {
		return false;
	}

	if ( false !== $plugin_rel_path ) {
		$path = WP_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/' );
	} elseif ( false !== $deprecated ) {
		_deprecated_argument( __FUNCTION__, '2.7.0' );
		$path = ABSPATH . trim( $deprecated, '/' );
	} else {
		$path = WP_PLUGIN_DIR;
	}

	$wp_textdomain_registry->set_custom_path( $domain, $path );

	// If just-in-time loading was triggered before, reset the entry so it can be tried again.
	if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof NOOP_Translations ) {
		unset( $l10n[ $domain ] );
	}

	return true;
}


function load_muplugin_textdomain( $domain, $mu_plugin_rel_path = '' ) {
	
	
	global $wp_textdomain_registry, $l10n;

	if ( ! is_string( $domain ) ) {
		return false;
	}

	$path = WPMU_PLUGIN_DIR . '/' . ltrim( $mu_plugin_rel_path, '/' );

	$wp_textdomain_registry->set_custom_path( $domain, $path );

	// If just-in-time loading was triggered before, reset the entry so it can be tried again.
	if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof NOOP_Translations ) {
		unset( $l10n[ $domain ] );
	}

	return true;
}


function load_theme_textdomain( $domain, $path = false ) {
	
	
	global $wp_textdomain_registry, $l10n;

	if ( ! is_string( $domain ) ) {
		return false;
	}

	if ( ! $path ) {
		$path = get_template_directory();
	}

	$wp_textdomain_registry->set_custom_path( $domain, $path );

	// If just-in-time loading was triggered before, reset the entry so it can be tried again.
	if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof NOOP_Translations ) {
		unset( $l10n[ $domain ] );
	}

	return true;
}


function load_child_theme_textdomain( $domain, $path = false ) {
	if ( ! $path ) {
		$path = get_stylesheet_directory();
	}
	return load_theme_textdomain( $domain, $path );
}


function load_script_textdomain( $handle, $domain = 'default', $path = '' ) {
	$wp_scripts = wp_scripts();

	if ( ! isset( $wp_scripts->registered[ $handle ] ) ) {
		return false;
	}

	$path   = untrailingslashit( $path );
	$locale = determine_locale();

	// If a path was given and the handle file exists simply return it.
	$file_base       = 'default' === $domain ? $locale : $domain . '-' . $locale;
	$handle_filename = $file_base . '-' . $handle . '.json';

	if ( $path ) {
		$translations = load_script_translations( $path . '/' . $handle_filename, $handle, $domain );

		if ( $translations ) {
			return $translations;
		}
	}

	$src = $wp_scripts->registered[ $handle ]->src;

	if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $wp_scripts->content_url && str_starts_with( $src, $wp_scripts->content_url ) ) ) {
		$src = $wp_scripts->base_url . $src;
	}

	$relative       = false;
	$languages_path = WP_LANG_DIR;

	$src_url     = wp_parse_url( $src );
	$content_url = wp_parse_url( content_url() );
	$plugins_url = wp_parse_url( plugins_url() );
	$site_url    = wp_parse_url( site_url() );
	$theme_root  = get_theme_root();

	// If the host is the same or it's a relative URL.
	if (
		( ! isset( $content_url['path'] ) || str_starts_with( $src_url['path'], $content_url['path'] ) ) &&
		( ! isset( $src_url['host'] ) || ! isset( $content_url['host'] ) || $src_url['host'] === $content_url['host'] )
	) {
		// Make the src relative the specific plugin or theme.
		if ( isset( $content_url['path'] ) ) {
			$relative = substr( $src_url['path'], strlen( $content_url['path'] ) );
		} else {
			$relative = $src_url['path'];
		}
		$relative = trim( $relative, '/' );
		$relative = explode( '/', $relative );

		/*
		 * Ensure correct languages path when using a custom `WP_PLUGIN_DIR` / `WP_PLUGIN_URL` configuration,
		 * a custom theme root, and/or using Multisite with subdirectories.
		 * See https://core.trac.wordpress.org/ticket/60891 and https://core.trac.wordpress.org/ticket/62016.
		 */

		$theme_dir = array_slice( explode( '/', $theme_root ), -1 );
		$dirname   = $theme_dir[0] === $relative[0] ? 'themes' : 'plugins';

		$languages_path = WP_LANG_DIR . '/' . $dirname;

		$relative = array_slice( $relative, 2 ); // Remove plugins/<plugin name> or themes/<theme name>.
		$relative = implode( '/', $relative );
	} elseif (
		( ! isset( $plugins_url['path'] ) || str_starts_with( $src_url['path'], $plugins_url['path'] ) ) &&
		( ! isset( $src_url['host'] ) || ! isset( $plugins_url['host'] ) || $src_url['host'] === $plugins_url['host'] )
	) {
		// Make the src relative the specific plugin.
		if ( isset( $plugins_url['path'] ) ) {
			$relative = substr( $src_url['path'], strlen( $plugins_url['path'] ) );
		} else {
			$relative = $src_url['path'];
		}
		$relative = trim( $relative, '/' );
		$relative = explode( '/', $relative );

		$languages_path = WP_LANG_DIR . '/plugins';

		$relative = array_slice( $relative, 1 ); // Remove <plugin name>.
		$relative = implode( '/', $relative );
	} elseif ( ! isset( $src_url['host'] ) || ! isset( $site_url['host'] ) || $src_url['host'] === $site_url['host'] ) {
		if ( ! isset( $site_url['path'] ) ) {
			$relative = trim( $src_url['path'], '/' );
		} elseif ( str_starts_with( $src_url['path'], trailingslashit( $site_url['path'] ) ) ) {
			// Make the src relative to the WP root.
			$relative = substr( $src_url['path'], strlen( $site_url['path'] ) );
			$relative = trim( $relative, '/' );
		}
	}

	
	$relative = apply_filters( 'load_script_textdomain_relative_path', $relative, $src );

	// If the source is not from WP.
	if ( false === $relative ) {
		return load_script_translations( false, $handle, $domain );
	}

	// Translations are always based on the unminified filename.
	if ( str_ends_with( $relative, '.min.js' ) ) {
		$relative = substr( $relative, 0, -7 ) . '.js';
	}

	$md5_filename = $file_base . '-' . md5( $relative ) . '.json';

	if ( $path ) {
		$translations = load_script_translations( $path . '/' . $md5_filename, $handle, $domain );

		if ( $translations ) {
			return $translations;
		}
	}

	$translations = load_script_translations( $languages_path . '/' . $md5_filename, $handle, $domain );

	if ( $translations ) {
		return $translations;
	}

	return load_script_translations( false, $handle, $domain );
}


function load_script_translations( $file, $handle, $domain ) {
	
	$translations = apply_filters( 'pre_load_script_translations', null, $file, $handle, $domain );

	if ( null !== $translations ) {
		return $translations;
	}

	
	$file = apply_filters( 'load_script_translation_file', $file, $handle, $domain );

	if ( ! $file || ! is_readable( $file ) ) {
		return false;
	}

	$translations = file_get_contents( $file );

	
	return apply_filters( 'load_script_translations', $translations, $file, $handle, $domain );
}


function _load_textdomain_just_in_time( $domain ) {
	
	global $l10n_unloaded, $wp_textdomain_registry;

	$l10n_unloaded = (array) $l10n_unloaded;

	// Short-circuit if domain is 'default' which is reserved for core.
	if ( 'default' === $domain || isset( $l10n_unloaded[ $domain ] ) ) {
		return false;
	}

	if ( ! $wp_textdomain_registry->has( $domain ) ) {
		return false;
	}

	$locale = determine_locale();
	$path   = $wp_textdomain_registry->get( $domain, $locale );
	if ( ! $path ) {
		return false;
	}

	if ( ! doing_action( 'after_setup_theme' ) && ! did_action( 'after_setup_theme' ) ) {
		_doing_it_wrong(
			__FUNCTION__,
			sprintf(
				/* translators: 1: The text domain. 2: 'init'. */
				__( 'Translation loading for the %1$s domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the %2$s action or later.' ),
				'<code>' . $domain . '</code>',
				'<code>init</code>'
			),
			'6.7.0'
		);
	}

	// Themes with their language directory outside of WP_LANG_DIR have a different file name.
	$template_directory   = trailingslashit( get_template_directory() );
	$stylesheet_directory = trailingslashit( get_stylesheet_directory() );
	if ( str_starts_with( $path, $template_directory ) || str_starts_with( $path, $stylesheet_directory ) ) {
		$mofile = "{$path}{$locale}.mo";
	} else {
		$mofile = "{$path}{$domain}-{$locale}.mo";
	}

	return load_textdomain( $domain, $mofile, $locale );
}


function get_translations_for_domain( $domain ) {
	global $l10n;
	if ( isset( $l10n[ $domain ] ) || ( _load_textdomain_just_in_time( $domain ) && isset( $l10n[ $domain ] ) ) ) {
		return $l10n[ $domain ];
	}

	static $noop_translations = null;
	if ( null === $noop_translations ) {
		$noop_translations = new NOOP_Translations();
	}

	$l10n[ $domain ] = &$noop_translations;

	return $noop_translations;
}


function is_textdomain_loaded( $domain ) {
	global $l10n;
	return isset( $l10n[ $domain ] ) && ! $l10n[ $domain ] instanceof NOOP_Translations;
}


function translate_user_role( $name, $domain = 'default' ) {
	return translate_with_gettext_context( before_last_bar( $name ), 'User role', $domain );
}


function get_available_languages( $dir = null ) {
	global $wp_textdomain_registry;

	$languages = array();

	$path       = is_null( $dir ) ? WP_LANG_DIR : $dir;
	$lang_files = $wp_textdomain_registry->get_language_files_from_path( $path );

	if ( $lang_files ) {
		foreach ( $lang_files as $lang_file ) {
			$lang_file = basename( $lang_file, '.mo' );
			$lang_file = basename( $lang_file, '.l10n.php' );

			if ( ! str_starts_with( $lang_file, 'continents-cities' ) && ! str_starts_with( $lang_file, 'ms-' ) &&
				! str_starts_with( $lang_file, 'admin-' ) ) {
				$languages[] = $lang_file;
			}
		}
	}

	
	return apply_filters( 'get_available_languages', array_unique( $languages ), $dir );
}


function wp_get_installed_translations( $type ) {
	global $wp_textdomain_registry;

	if ( 'themes' !== $type && 'plugins' !== $type && 'core' !== $type ) {
		return array();
	}

	$dir = 'core' === $type ? WP_LANG_DIR : WP_LANG_DIR . "/$type";

	if ( ! is_dir( $dir ) ) {
		return array();
	}

	$files = $wp_textdomain_registry->get_language_files_from_path( $dir );
	if ( ! $files ) {
		return array();
	}

	$language_data = array();

	foreach ( $files as $file ) {
		if ( ! preg_match( '/(?:(.+)-)?([a-z]{2,3}(?:_[A-Z]{2})?(?:_[a-z0-9]+)?)\.(?:mo|l10n\.php)/', basename( $file ), $match ) ) {
			continue;
		}

		list( , $textdomain, $language ) = $match;
		if ( '' === $textdomain ) {
			$textdomain = 'default';
		}

		if ( str_ends_with( $file, '.mo' ) ) {
			$pofile = substr_replace( $file, '.po', - strlen( '.mo' ) );

			if ( ! file_exists( $pofile ) ) {
				continue;
			}

			$language_data[ $textdomain ][ $language ] = wp_get_pomo_file_data( $pofile );
		} else {
			$pofile = substr_replace( $file, '.po', - strlen( '.l10n.php' ) );

			// If both a PO and a PHP file exist, prefer the PO file.
			if ( file_exists( $pofile ) ) {
				continue;
			}

			$language_data[ $textdomain ][ $language ] = wp_get_l10n_php_file_data( $file );
		}
	}
	return $language_data;
}


function wp_get_pomo_file_data( $po_file ) {
	$headers = get_file_data(
		$po_file,
		array(
			'POT-Creation-Date'  => '"POT-Creation-Date',
			'PO-Revision-Date'   => '"PO-Revision-Date',
			'Project-Id-Version' => '"Project-Id-Version',
			'X-Generator'        => '"X-Generator',
		)
	);
	foreach ( $headers as $header => $value ) {
		// Remove possible contextual '\n' and closing double quote.
		$headers[ $header ] = preg_replace( '~(\\\n)?"$~', '', $value );
	}
	return $headers;
}


function wp_get_l10n_php_file_data( $php_file ) {
	$data = (array) include $php_file;

	unset( $data['messages'] );
	$headers = array(
		'POT-Creation-Date'  => 'pot-creation-date',
		'PO-Revision-Date'   => 'po-revision-date',
		'Project-Id-Version' => 'project-id-version',
		'X-Generator'        => 'x-generator',
	);

	$result = array(
		'POT-Creation-Date'  => '',
		'PO-Revision-Date'   => '',
		'Project-Id-Version' => '',
		'X-Generator'        => '',
	);

	foreach ( $headers as $po_header => $php_header ) {
		if ( isset( $data[ $php_header ] ) ) {
			$result[ $po_header ] = $data[ $php_header ];
		}
	}

	return $result;
}


function wp_dropdown_languages( $args = array() ) {

	$parsed_args = wp_parse_args(
		$args,
		array(
			'id'                          => 'locale',
			'name'                        => 'locale',
			'languages'                   => array(),
			'translations'                => array(),
			'selected'                    => '',
			'echo'                        => 1,
			'show_available_translations' => true,
			'show_option_site_default'    => false,
			'show_option_en_us'           => true,
			'explicit_option_en_us'       => false,
		)
	);

	// Bail if no ID or no name.
	if ( ! $parsed_args['id'] || ! $parsed_args['name'] ) {
		return;
	}

	// English (United States) uses an empty string for the value attribute.
	if ( 'en_US' === $parsed_args['selected'] && ! $parsed_args['explicit_option_en_us'] ) {
		$parsed_args['selected'] = '';
	}

	$translations = $parsed_args['translations'];
	if ( empty( $translations ) ) {
		require_once ABSPATH . 'wp-admin/includes/translation-install.php';
		$translations = wp_get_available_translations();
	}

	/*
	 * $parsed_args['languages'] should only contain the locales. Find the locale in
	 * $translations to get the native name. Fall back to locale.
	 */
	$languages = array();
	foreach ( $parsed_args['languages'] as $locale ) {
		if ( isset( $translations[ $locale ] ) ) {
			$translation = $translations[ $locale ];
			$languages[] = array(
				'language'    => $translation['language'],
				'native_name' => $translation['native_name'],
				'lang'        => current( $translation['iso'] ),
			);

			// Remove installed language from available translations.
			unset( $translations[ $locale ] );
		} else {
			$languages[] = array(
				'language'    => $locale,
				'native_name' => $locale,
				'lang'        => '',
			);
		}
	}

	$translations_available = ( ! empty( $translations ) && $parsed_args['show_available_translations'] );

	// Holds the HTML markup.
	$structure = array();

	// List installed languages.
	if ( $translations_available ) {
		$structure[] = '<optgroup label="' . esc_attr_x( 'Installed', 'translations' ) . '">';
	}

	// Site default.
	if ( $parsed_args['show_option_site_default'] ) {
		$structure[] = sprintf(
			'<option value="site-default" data-installed="1"%s>%s</option>',
			selected( 'site-default', $parsed_args['selected'], false ),
			_x( 'Site Default', 'default site language' )
		);
	}

	if ( $parsed_args['show_option_en_us'] ) {
		$value       = ( $parsed_args['explicit_option_en_us'] ) ? 'en_US' : '';
		$structure[] = sprintf(
			'<option value="%s" lang="en" data-installed="1"%s>English (United States)</option>',
			esc_attr( $value ),
			selected( '', $parsed_args['selected'], false )
		);
	}

	// List installed languages.
	foreach ( $languages as $language ) {
		$structure[] = sprintf(
			'<option value="%s" lang="%s"%s data-installed="1">%s</option>',
			esc_attr( $language['language'] ),
			esc_attr( $language['lang'] ),
			selected( $language['language'], $parsed_args['selected'], false ),
			esc_html( $language['native_name'] )
		);
	}
	if ( $translations_available ) {
		$structure[] = '</optgroup>';
	}

	// List available translations.
	if ( $translations_available ) {
		$structure[] = '<optgroup label="' . esc_attr_x( 'Available', 'translations' ) . '">';
		foreach ( $translations as $translation ) {
			$structure[] = sprintf(
				'<option value="%s" lang="%s"%s>%s</option>',
				esc_attr( $translation['language'] ),
				esc_attr( current( $translation['iso'] ) ),
				selected( $translation['language'], $parsed_args['selected'], false ),
				esc_html( $translation['native_name'] )
			);
		}
		$structure[] = '</optgroup>';
	}

	// Combine the output string.
	$output  = sprintf( '<select name="%s" id="%s">', esc_attr( $parsed_args['name'] ), esc_attr( $parsed_args['id'] ) );
	$output .= implode( "\n", $structure );
	$output .= '</select>';

	if ( $parsed_args['echo'] ) {
		echo $output;
	}

	return $output;
}


function is_rtl() {
	global $wp_locale;
	if ( ! ( $wp_locale instanceof WP_Locale ) ) {
		return false;
	}
	return $wp_locale->is_rtl();
}


function switch_to_locale( $locale ) {
	/* @var WP_Locale_Switcher $wp_locale_switcher */
	global $wp_locale_switcher;

	if ( ! $wp_locale_switcher ) {
		return false;
	}

	return $wp_locale_switcher->switch_to_locale( $locale );
}


function switch_to_user_locale( $user_id ) {
	/* @var WP_Locale_Switcher $wp_locale_switcher */
	global $wp_locale_switcher;

	if ( ! $wp_locale_switcher ) {
		return false;
	}

	return $wp_locale_switcher->switch_to_user_locale( $user_id );
}


function restore_previous_locale() {
	/* @var WP_Locale_Switcher $wp_locale_switcher */
	global $wp_locale_switcher;

	if ( ! $wp_locale_switcher ) {
		return false;
	}

	return $wp_locale_switcher->restore_previous_locale();
}


function restore_current_locale() {
	/* @var WP_Locale_Switcher $wp_locale_switcher */
	global $wp_locale_switcher;

	if ( ! $wp_locale_switcher ) {
		return false;
	}

	return $wp_locale_switcher->restore_current_locale();
}


function is_locale_switched() {
	/* @var WP_Locale_Switcher $wp_locale_switcher */
	global $wp_locale_switcher;

	return $wp_locale_switcher->is_switched();
}


function translate_settings_using_i18n_schema( $i18n_schema, $settings, $textdomain ) {
	if ( empty( $i18n_schema ) || empty( $settings ) || empty( $textdomain ) ) {
		return $settings;
	}

	if ( is_string( $i18n_schema ) && is_string( $settings ) ) {
		return translate_with_gettext_context( $settings, $i18n_schema, $textdomain );
	}
	if ( is_array( $i18n_schema ) && is_array( $settings ) ) {
		$translated_settings = array();
		foreach ( $settings as $value ) {
			$translated_settings[] = translate_settings_using_i18n_schema( $i18n_schema[0], $value, $textdomain );
		}
		return $translated_settings;
	}
	if ( is_object( $i18n_schema ) && is_array( $settings ) ) {
		$group_key           = '*';
		$translated_settings = array();
		foreach ( $settings as $key => $value ) {
			if ( isset( $i18n_schema->$key ) ) {
				$translated_settings[ $key ] = translate_settings_using_i18n_schema( $i18n_schema->$key, $value, $textdomain );
			} elseif ( isset( $i18n_schema->$group_key ) ) {
				$translated_settings[ $key ] = translate_settings_using_i18n_schema( $i18n_schema->$group_key, $value, $textdomain );
			} else {
				$translated_settings[ $key ] = $value;
			}
		}
		return $translated_settings;
	}
	return $settings;
}


function wp_get_list_item_separator() {
	global $wp_locale;

	if ( ! ( $wp_locale instanceof WP_Locale ) ) {
		// Default value of WP_Locale::get_list_item_separator().
		/* translators: Used between list items, there is a space after the comma. */
		return __( ', ' );
	}

	return $wp_locale->get_list_item_separator();
}


function wp_get_word_count_type() {
	global $wp_locale;

	if ( ! ( $wp_locale instanceof WP_Locale ) ) {
		// Default value of WP_Locale::get_word_count_type().
		return 'words';
	}

	return $wp_locale->get_word_count_type();
}


function has_translation( string $singular, string $textdomain = 'default', ?string $locale = null ): bool {
	return WP_Translation_Controller::get_instance()->has_translation( $singular, $textdomain, $locale );
}