var App = App || {};
App.Presenters = App.Presenters || {};

App.Presenters.UserListPresenter = function(
	_,
	jQuery,
	util,
	promise,
	auth,
	pagerPresenter,
	topNavigationPresenter) {

	var $el = jQuery('#content');
	var templates = {};
	var params;
	var privileges = {};

	function init(params, loaded) {
		topNavigationPresenter.select('users');
		topNavigationPresenter.changeTitle('Users');

		privileges.canViewUsers = auth.hasPrivilege(auth.privileges.viewUsers);

		promise.wait(
				util.promiseTemplate('user-list'),
				util.promiseTemplate('user-list-item'))
			.then(function(listTemplate, listItemTemplate) {
				templates.list = listTemplate;
				templates.listItem = listItemTemplate;

				render();
				loaded();

				pagerPresenter.init({
						baseUri: '#/users',
						backendUri: '/users',
						$target: $el.find('.pagination-target'),
						updateCallback: function($page, data) {
							renderUsers($page, data.entities);
						},
					},
					function() {
						reinit(params, function() {});
					});
			}).fail(function() {
				console.log(arguments);
				loaded();
			});
	}

	function reinit(_params, loaded) {
		params = _params;
		params.query = params.query || {};
		params.query.order = params.query.order || 'name,asc';
		updateActiveOrder(params.query.order);

		pagerPresenter.reinit({query: params.query});
		loaded();
	}

	function deinit() {
		pagerPresenter.deinit();
	}

	function render() {
		$el.html(templates.list(privileges));
	}

	function updateActiveOrder(activeOrder) {
		$el.find('.order li a.active').removeClass('active');
		$el.find('.order [href*="' + activeOrder + '"]').addClass('active');
	}

	function renderUsers($page, users) {
		var $target = $page.find('.users');
		_.each(users, function(user) {
			var $item = jQuery('<li>' + templates.listItem(_.extend({
				user: user,
				formatRelativeTime: util.formatRelativeTime,
			}, privileges)) + '</li>');
			$target.append($item);
		});
		_.map(_.map($target.find('img'), jQuery), util.loadImagesNicely);
	}

	return {
		init: init,
		reinit: reinit,
		deinit: deinit,
		render: render,
	};

};

App.DI.register('userListPresenter', ['_', 'jQuery', 'util', 'promise', 'auth', 'pagerPresenter', 'topNavigationPresenter'], App.Presenters.UserListPresenter);