/**
 * TimWolla.WCF.Chat
 * 
 * @author	Tim Düsterhus
 * @copyright	2010-2011 Tim Düsterhus
 * @license	Creative Commons Attribution-NonCommercial-ShareAlike <http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode>
 * @package	timwolla.wcf.chat
 */
if (typeof TimWolla == 'undefined') var TimWolla = {};
if (typeof TimWolla.WCF == 'undefined') TimWolla.WCF = {};
	

(function ($, document) {
	TimWolla.WCF.Chat = {
		titleTemplate: null,
		messageTemplate: null,
		init: function(roomID, messageID) {
			this.bindEvents();
			this.refreshRoomList();
			new WCF.PeriodicalExecuter(this.refreshRoomList, 10e3);
			
			$('#chatInput').focus();
		},
		/**
		 * Binds all the events needed for Tims Chat.
		 */
		bindEvents: function () {
			$('.smiley').click($.proxy(function (event) {
				this.insertText(' '+$(event.target).attr('alt')+' ');
			}, this));
			
			// $(window).bind('beforeunload', function() {
				// return false;
			// });
			
			$('.chatSidebarTabs li').click($.proxy(function (event) {
				event.preventDefault();
				this.toggleSidebarContent($(event.target));
			}, this));
			
			$('.chatUser .chatUserLink').click($.proxy(function (event) {
				event.preventDefault();
				this.toggleUserMenu($(event.target));
			}, this));
			
			$('#chatForm').submit($.proxy(function (event) {
				event.preventDefault();
				this.submit($(event.target));
			}, this));
			
			$('#chatClear').click(function (event) {
				event.preventDefault();
				$('.chatMessage').remove();
				$('#chatInput').focus();
			});
			
			$('.chatToggle').click(function (event) {
				var element = $(this);
				var icon = $('img', element);
				if (element.data('status') == '1') {
					element.data('status', 0);
					icon.attr('src', icon.attr('src').replace(/enabled(\d?).([a-z]{3})$/, 'disabled$1.$2'));
					element.attr('title', element.data('enableMessage'));
				}
				else {
					element.data('status', 1);
					icon.attr('src', icon.attr('src').replace(/disabled(\d?).([a-z]{3})$/, 'enabled$1.$2'));
					element.attr('title', element.data('disableMessage'));
				}
			});
		},
		/**
		 * Changes the chat-room.
		 * 
		 * @param	object	target
		 */
		changeRoom: function (target) {
			window.history.replaceState({}, '', target.attr('href'));
			
			// actually change the room
			$.ajax(target.attr('href'), {
				dataType: 'json',
				data: { ajax: 1 },
				type: 'POST',
				success: $.proxy(function (data, textStatus, jqXHR) {
					this.loading = false;
					
					target.parent().removeClass('ajaxLoad');
					
					// mark as active;
					$('.activeMenuItem .chatRoom').parent().removeClass('activeMenuItem');
					target.parent().addClass('activeMenuItem');
					
					// set new topic
					if (data.topic == '') {
						if (data.topic == '' && $('#topic').text().trim() == '') return;
						
						$('#topic').wcfBlindOut('vertical', function () {
							$(this).text('');
						});
					}
					else {
						if ($('#topic').text().trim() != '') $('#topic').text(data.topic);
						else {
							$('#topic').text(data.topic);
							$('#topic').wcfBlindIn();
						}
					}
					
					// set page-title
					$('title').text(this.titleTemplate.fetch(data));
				}, this),
				error: function() {
					// reload page to change the room the old fashion-way
					// inclusive the error-message :)
					window.location.reload(true);
				},
				beforeSend: $.proxy(function () {
					if (this.loading || target.parent().hasClass('activeMenuItem')) return false;
					
					this.loading = true;

					target.parent().addClass('ajaxLoad');
				}, this)
			});
		},
		getMessages: function () {
		
		},
		/**
		 * Appends the messages.
		 * 
		 * @param	array<object>	messages
		 */
		handleMessages: function (messages) {
			for (message in messages) {
				message = messages[message];
				output = this.messageTemplate.fetch(message);
				
				li = $('<li></li>');
				li.addClass('chatMessage chatMessage'+message.type);
				if (message.sender == WCF.User.userID) li.addClass('ownMessage');
				li.append(output);
				
				$('.chatMessageContainer ul').append(li);
			}
			$('.chatMessageContainer').animate({ scrollTop: $('.chatMessageContainer ul').height() }, 10000);
		},
		/**
		 * Inserts text into the chat-input.
		 * 
		 * @param	string	text
		 * @param	object	options
		 */
		insertText: function (text, options) {
			options = $.extend({
				append: true,
				submit: false
			}, options || {});
				
			if (options.append) {
				text = $('#chatInput').val() + text;
			}
			$('#chatInput').val(text);
			
			if (options.submit) $('#chatForm').submit();
			else $('#chatInput').focus();
		},
		refreshRoomList: function() {
			$('.chatRoom').unbind('click');
			$('#toggleRooms a').addClass('ajaxLoad');
			
			$.ajax($('#toggleRooms a').data('refreshUrl'), {
				dataType: 'json',
				type: 'POST',
				success: $.proxy(function (data, textStatus, jqXHR) {
					$('#chatRoomList li').remove();
					$('#toggleRooms a').removeClass('ajaxLoad');
					for (var room in data) {
						var li = $('<li></li>');
						if (data[room].active) li.addClass('activeMenuItem');
						$('<a href="'+data[room].link+'">'+data[room].title+'</a>').addClass('chatRoom').appendTo(li);
						$('#chatRoomList ul').append(li);
					}
					$('.chatRoom').click($.proxy(function (event) {
						if (typeof window.history.replaceState != 'undefined') {
							event.preventDefault();
							this.changeRoom($(event.target));
						}
					}, this));
				}, this)
			});
			
		},
		submit: function (target) {
			// break if input contains only whitespace
			if ($('#chatInput').val().trim().length === 0) return false;
			
			$.ajax($('#chatForm').attr('action'), {
				data: {
					text: $('#chatInput').val()
				},
				type: 'POST',
				beforeSend: $.proxy(function (jqXHR) {
					$('#chatInput').addClass('ajaxLoad');
				}),
				success: $.proxy(function (data, textStatus, jqXHR) {
					this.getMessages();
					$('#chatInput').val('').focus();
					$('#chatForm .counter').text(this.config.maxTextLength);
				}, this),
				complete: function() {
					$('#chatInput').removeClass('ajaxLoad');
				}
			});
		},
		toggleSidebarContent: function (target) {
			if (target.parent().hasClass('active')) return;

			if (target.parent().attr('id') == "toggleUsers") {
				$('#toggleUsers').addClass('active');
				$('#toggleRooms').removeClass('active');
				
				$('#chatRoomList').hide();
				$('#chatUserList').show();
			} 
			else if (target.parent().attr('id') == "toggleRooms") {
				$('#toggleRooms').addClass('active');
				$('#toggleUsers').removeClass('active');
				
				$('#chatUserList').hide();
				$('#chatRoomList').show();
			}
		},
		toggleUserMenu: function (target) {
			liUserID = '#' + target.parent().parent().attr('id');
			if ($(liUserID).hasClass('activeMenuItem')) {
				$(liUserID + ' .chatUserMenu').wcfBlindOut('vertical', function () {
					$(liUserID).removeClass('activeMenuItem');
				});
			}
			else {
				$(liUserID).addClass('activeMenuItem');
				$(liUserID + ' .chatUserMenu').wcfBlindIn();
			}
		}
	};
})(jQuery, document);