(function() {
'use strict';

app.directive('langSwitcher', langSwitcherController);

function getCurrentlanguage(key) {
	return this.languages.filter((function(item) { return item.key === key }))[0];
}

function langSwitcherController() {
	return {
		restrict: 'E',
		templateUrl: './app/directives/lang-switcher/lang-switcher.template.html',
		scope: {},
		link: function(scope, element, attr) {},
		controller: ['$scope', '$translate', '$rootScope', function($scope, $translate, $rootScope) {
			$scope.languages = [
				{ key: 'en', value: 'En' },
				{ key: 'ru', value: 'Ru' },
				{ key: 'ua', value: 'Ua' }
			];
			$scope.showMenu = false;
			$scope.toggleMenu = function() {
				$scope.showMenu = !$scope.showMenu;
			}
			var key = localStorage.getItem('preferredLanguage') || 'en';
			$scope.currentLang = getCurrentlanguage.call($scope, key);
			$scope.changeLanguage = function(key) {
				$scope.currentLang = getCurrentlanguage.call($scope, key);
				$translate.use(key);
				localStorage.setItem('preferredLanguage', key);
				$rootScope.$broadcast('changeLang', key);
				$scope.showMenu = !$scope.showMenu;
			};
			$scope.$on('changeLang', function(event, value) {
				if ($scope.currentLang.key !== value) {
					$scope.currentLang = getCurrentlanguage.call($scope, value);
				}
			});
		}],
	}
}
langSwitcherController.$inject = [];
})();