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<?php
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}


/**
 * Load array of stored in options language properties
 * @since 3.3
 */
function qtranxf_load_languages( &$cfg ) {
	global $qtranslate_options;
	//$cfg = array();
	foreach ( $qtranslate_options['languages'] as $nm => $opn ) {
		$cfg[ $nm ] = get_option( $opn, array() );
	}

	return $cfg;
}

//function qtranxf_save_languages($cfg) is in qtx_activation_hook.php as it is in use there

/**
 * Remove language $lang properties from hash $langs.
 * @since 3.3
 */
function qtranxf_unsetLanguage( &$langs, $lang ) {
	unset( $langs['language_name'][ $lang ] );
	unset( $langs['flag'][ $lang ] );
	unset( $langs['locale'][ $lang ] );
	unset( $langs['locale_html'][ $lang ] );
	unset( $langs['date_format'][ $lang ] );
	unset( $langs['time_format'][ $lang ] );
	unset( $langs['not_available'][ $lang ] );
	//unset($langs['languages'][$lang]);
}

/**
 * @since 3.4.2
 */
function qtranxf_setLanguageAdmin( $lang ) {
	global $q_config;
	$q_config['language'] = $lang;
	qtranxf_set_language_cookie( $lang );
}

/**
 * Remove language $lang properties from hash $langs.
 * @since 3.3
 */
function qtranxf_copyLanguage( &$langs, $cfg, $lang ) {
	$langs['language_name'][ $lang ] = $cfg['language_name'][ $lang ];
	$langs['flag'][ $lang ]          = $cfg['flag'][ $lang ];
	$langs['locale'][ $lang ]        = $cfg['locale'][ $lang ];
	if ( empty( $cfg['locale_html'][ $lang ] ) ) {
		unset( $langs['locale_html'][ $lang ] );
	} else {
		$langs['locale_html'][ $lang ] = $cfg['locale_html'][ $lang ];
	}
	$langs['date_format'][ $lang ]   = $cfg['date_format'][ $lang ];
	$langs['time_format'][ $lang ]   = $cfg['time_format'][ $lang ];
	$langs['not_available'][ $lang ] = $cfg['not_available'][ $lang ];
}

function qtranxf_update_config_header_css() {
	global $q_config;
	$header_css = get_option( 'qtranslate_header_css' );
	if ( $header_css === false ) {
		$q_config['header_css'] = qtranxf_front_header_css_default();
	}
	if ( ! $q_config['header_css_on'] || ! empty( $header_css ) ) {
		qtranxf_add_warning( sprintf( __( 'A manual update to option "%s" or to the theme custom CSS may be needed, after some languages are changed.', 'qtranslate' ), __( 'Head inline CSS', 'qtranslate' ) ) . ' ' . __( 'If you do not wish to customize this option, then reset it to the default by emptying its value.', 'qtranslate' ) );
	}
}

function qtranxf_disableLanguage( $lang ) {
	global $q_config;
	if ( ! qtranxf_isEnabled( $lang ) ) {
		return false;
	}
	$new_enabled = array();
	foreach ( $q_config['enabled_languages'] as $k => $l ) {
		if ( $l != $lang ) {
			continue;
		}
		unset( $q_config['enabled_languages'][ $k ] );
		break;
	}
	qtranxf_unsetLanguage( $q_config, $lang );
	if ( $q_config['language'] == $lang ) {
		qtranxf_setLanguageAdmin( $q_config['default_language'] );
	}
	qtranxf_update_config_header_css();

	return true;
}

function qtranxf_enableLanguage( $lang ) {
	global $q_config;
	if ( qtranxf_isEnabled( $lang ) ) {
		return false;
	}

	$q_config['enabled_languages'][] = $lang;
	qtranxf_load_languages_enabled();
	qtranxf_update_config_header_css();

	// force update of .mo files
	if ( $q_config['auto_update_mo'] ) {
		qtranxf_updateGettextDatabases( true, $lang );
	}

	return true;
}

/**
 * Remove language $lang from the database.
 * @since 3.3
 */
function qtranxf_deleteLanguage( $lang ) {
	global $q_config;
	if ( ! qtranxf_language_predefined( $lang ) ) {
		if ( $q_config['default_language'] == $lang ) {
			return __( 'Cannot delete Default Language!', 'qtranslate' );
		}
		qtranxf_disableLanguage( $lang );
	}
	$langs = array();
	qtranxf_load_languages( $langs );
	qtranxf_unsetLanguage( $langs, $lang );
	qtranxf_save_languages( $langs );
	if ( $q_config['language'] == $lang ) {
		qtranxf_setLanguageAdmin( $q_config['default_language'] );
	}

	return '';
}