<?php
/**
 * Languages plugin
 *
 */

function languages_get_useragent_language() {
	global $CONFIG;
	if (isset($_SERVER["HTTP_ACCEPT_LANGUAGE"])) {

		register_translations($CONFIG->path . "languages/", true);

		$available_languages = array_keys($CONFIG->translations);
		$accepted_languages = explode(',', $_SERVER["HTTP_ACCEPT_LANGUAGE"]);

		foreach ($accepted_languages as $i => $accepted_language) {
			$accepted_languages[$i] = trim(array_shift(preg_split("/[-;]/", $accepted_language)));
		}

		$langs = array_intersect($accepted_languages, $available_languages);
		if (count($langs) > 0) {
			return array_shift($langs);
		}
		return false;
	}
}

register_translations(elgg_get_plugins_path() . "languages/languages/es", true);
register_translations(elgg_get_plugins_path() . "languages/languages/nl", true);
register_translations(elgg_get_plugins_path() . "languages/languages/de", true);
register_translations(elgg_get_plugins_path() . "languages/languages/pt", true);
register_translations(elgg_get_plugins_path() . "languages/languages/fr", true);
register_translations(elgg_get_plugins_path() . "languages/languages/ca", true);
register_translations(elgg_get_plugins_path() . "languages/languages/da", true);
register_translations(elgg_get_plugins_path() . "languages/languages/eu", true);
register_translations(elgg_get_plugins_path() . "languages/languages/gl", true);
register_translations(elgg_get_plugins_path() . "languages/languages/it", true);
register_translations(elgg_get_plugins_path() . "languages/languages/ja", true);
register_translations(elgg_get_plugins_path() . "languages/languages/sr", true);
register_translations(elgg_get_plugins_path() . "languages/languages/th", true);
register_translations(elgg_get_plugins_path() . "languages/languages/zh", true);

if (!elgg_is_logged_in()) {
	global $CONFIG;
	if ($useragent_language = languages_get_useragent_language()) {
		$CONFIG->language = $useragent_language;
	}
}