(function($, Backbone) {

	var models = {},
		views = {},
		renderData = function (data) {
			var icons = [],
				categories = [];
			$.each(data, function (category, items) {
				$.each(items, function (content, d) {
					categories.push(category);
					icons.push({
						category: category,
						caption: content.replace(/_/g, ' '),
						className: content.replace(/_/g, '-'),
						content: content,
						code: d[0].toUpperCase(),
						is_new: d[1] && true
					});
				});
			});
			var view = new views.Icons({collection: new models.Icons(icons)});
			view.render();
		};

	models.Icon = Backbone.Model.extend();

	models.Icons = Backbone.Collection.extend({
		model: models.Icon
	});

	views.Icon = Backbone.View.extend({
		tagName: 'div',
		className: 'item-container',
		template: _.template($('#grid-item').html()),
		events : {
			"click" : "showSnackBar"
		},
		initialize: function (options) {
			this.listenTo(this.model, 'hideSnackBar', this.hideSnackBar);
			_.bindAll(this, 'render', 'hideSnackBar');
		},
		render: function () {
			$(this.el).html(this.template(this.model.attributes));
			return this;
		},
		showSnackBar: function() {
			$("body").click();
			this.model.trigger('hideSnackBar');
			$(this.el).addClass("selected");
			var view = new views.snackbarView({model: this.model});
			navigate(this.model.attributes.className);
			view.render();
			return false;
		},
		hideSnackBar: function() {
			$(this.el).removeClass("selected");
			navigate();
		}
	});

	views.snackbarView = Backbone.View.extend({
		container: $('#snackbar'),
		template: _.template($('#snackbar-template').html()),
		initialize: function (options) {
			this.collection = options.collection;
			$("body").on("click focus", $.proxy(this.hide, this));
		},
		render: function () {
			var hidden = !this.container.children(".container:not(:hidden)").length;
			this.container.empty();
			this.container.append(this.template(this.model.attributes));
			if (hidden) {
				this.container.children(".container").hide().slideDown('fast');
			} else {
				this.container.children(".container").stop(0, 0).slideDown('fast');
			}
		},
		hide: function() {
			this.model.trigger('hideSnackBar');
			this.container.children(".container").slideUp('fast');
		}
	});

	views.Icons = Backbone.View.extend({
		container: $('#grid-container'),
		empty_content: $('#empty-grid').html(),
		search_input: $('#search'),
		search_clear: $('#search-panel .clear-icon'),
		initialize: function (options) {
			this.collection = options.collection;
			this.search_input.bind('keyup', $.proxy(this.search, this));
			this.search_clear.bind('click', $.proxy(this.clear_search, this));
			_.bindAll(this, 'render');
		},
		clear_search : function() {
			this.search_input.val('');
			this.search_input.focus();
			this.search();
			return this;
		},
		search: function () {
			var str = this.search_input.val();
			if (str.length > 0) {
				this.search_clear.show();
			} else {
				this.search_clear.hide();
			}
			str = str.replace(/[\-_]+/g, ' ').replace(/\s+/, ' ').trim();
			if (str.length > 0) {
				var models = this.collection.filter(function (item) {
					return item.get("caption").indexOf(str) > -1
				});
				this.render(models);
			} else {
				this.render();
			}
			$('body, html').animate({scrollTop: this.container.offset().top - 64}, 0);
			return this;
		},
		render: function (searchCollection) {
			var container = this.container,
				category = null,
				grid = $("<div/>", {"class" : "grid"}),
				self = this,
				models = searchCollection || this.collection;
			container.empty();
			models.forEach(function (item) {
				var itemView = new views.Icon({model: item});
				if (category === null) {
					category = item.get('category');
				}
				if (category !== item.get('category')) {
					$("<h2/>").html(category.charAt(0).toUpperCase() + category.slice(1)).
						appendTo(self.container);
					grid.appendTo(self.container);

					category = item.get('category');
					grid = $("<div/>", {"class" : "grid"});
					grid.append(itemView.render().el);
				} else {
					grid.append(itemView.render().el);
				}
			});
			if (category !== null) {
				$("<h2/>").html(category.charAt(0).toUpperCase() + category.slice(1)).
					appendTo(self.container);
				grid.appendTo(self.container);
			} else {
				container.html(self.empty_content);
			}
			return this;
		}
	});

	var Router = Backbone.Router.extend({
		routes: {
			'': 'index',
			":query": "item",
		},
		index: function() {
			renderData(window.data);
		},

		item: function(query) {
			renderData(window.data);
			setTimeout(function() {
				var item = $(".item-container > .item > .mdi.mdi-" + query.replace(/[^0-9a-zA-Z]/g, '-'))
					.closest(".item-container");
				if (item.length) {
					item.trigger("click");
					$('body, html').animate({scrollTop: item.offset().top - 74}, 0);
				}
			}, 50);
		}
	});

	var navigate = function(hash) {
		var scrollTop = $(window).scrollTop();
		Backbone.history.navigate(hash, false);
		$('body, html').animate({scrollTop: scrollTop}, 0);
	};

	$(document).ready(function () {
		var is_fixed_search = false,
			$win = $(window),
			search_panel = $("#search-panel"),
			header_panel = $("#head-panel");

		$win.on("scroll resize", function () {
			if ($win.scrollTop() > header_panel.outerHeight()) {
				if (!is_fixed_search) {
					is_fixed_search = true;
					search_panel.addClass("top-fixed");
				}
			} else {
				if (is_fixed_search) {
					is_fixed_search = false;
					search_panel.removeClass("top-fixed");
				}
			}
		});

		$("body").on("focus", "textarea.code", function() {
			var $this = $(this);
			$this.select();
			window.setTimeout(function() {
				$this.select();
			}, 1);
			function mouseUpHandler() {
				$this.off("mouseup", mouseUpHandler);
				return false;
			}
			$this.mouseup(mouseUpHandler);
		});

		$("#snackbar").on("click focus", function(e) {
			e.preventDefault();
			return false;
		});

		new Router;
		Backbone.history.start();

	});
}) (jQuery, Backbone);