(function() {
	// globals
	MyApp.Utils = {};


	// utility functions
	// MyApp.Utils.someUtilityFunction = function() {}
	// MyApp.Utils.someOtherUtilityFunction = function() {}

	// app functions
	MyApp.renderShell = function() {
		document.title = i18next.t('vanillaJS');

		var d = $.Deferred();

		//preload this template, so we can be sure the dom in rendered when we resolve
		ejs.preloadTemplate('/templates/main.ejs')
		.then(function(templateUrl) {
			$('.js-main-content').html(ejs.rr(templateUrl));
			d.resolve();
		});
		return d;
	};

	MyApp.renderHomePage = function() {
		$('.js-page-container').html(ejs.rr('/templates/home.ejs'));
	};

	MyApp.renderTextPage = function() {
		$('.js-page-container').html(ejs.rr('/templates/sometext.ejs', {
			texts: [
				{
					id: 100,
					description: 'Some text with id 100'
				},
				{
					id: 200,
					description: 'Some other text with id 200. Click it!'
				}
			]
		}));
	};

	MyApp.renderAboutPage = function() {
		$('.js-page-container').html(ejs.rr('/templates/about.ejs'));
	};

	// events
	$(document).on('click', '.js-link', function(ev) {
		var el = $(ev.currentTarget);
		var linkId = el.attr('data-id');
		PNotify.success('The text you clicked had id ' + linkId + '. Maybe next time I will do something with this id.');
	});


	// app startup

	// set language
	i18next
	.use(i18nextBrowserLanguageDetector)
	.use(i18nextXHRBackend)
	.init({
		detection: {
			order: ['querystring', 'cookie', 'navigator'],
			lookupQuerystring: 'lang',
			lookupCookie: 'current-language',
			caches: ['cookie'],
			cookieMinutes: 5256000
		},
		whitelist: ['en', 'de', 'it'],
		load: 'languageOnly',
		fallbackLng: 'it',
		backend: {
			loadPath: '/i18n/{{lng}}.json'
		}
	})
	.then(function() {
		// language initialized
		// if there is a lang query string parameter, remove it and reload: we save the language in a cookie so the url stays nice
		var urlQueryString = new URLSearchParams(window.location.search);
		if (urlQueryString.has('lang')) {
			urlQueryString.delete('lang');
			var newUrl = [location.protocol, '//', location.host, location.pathname].join('') +
				(urlQueryString.toString() !== '' ? '?' + urlQueryString.toString() : '') +
				window.location.hash;
			window.location = newUrl;
			return;
		}

		// render main shell
		MyApp.renderShell()
		.then(function() {
		//setup routing
			page('/', MyApp.renderHomePage);
			page('/about', MyApp.renderAboutPage);
			page('/text', MyApp.renderTextPage);

			page({
				hashbang: true
			});
		});
	});

})();