// Settings controls

(function($){
	
	$.fn.initChat = function() {
		var input = $(this);
		var chatText = $("#chatText");
		var hidden = true;
		var messageHistory = [];
		var messagePointer = -1;

		var closechat = function() {
			hidden = true;
			input.css("opacity","0");
			messagePointer = messageHistory.length;
			input.val('');
			chatText.text('')
		}

		var updateDimensions = function(){
			chatText.text(input.val());
			var width = chatText.width() + 30;
			input.css({
				width: width,
				marginLeft: (width/2)*-1
			});
		};

		input.blur(function(e) {
			setTimeout(function(){input.focus()}, 0.1);
		});
		input.keydown(function(e){
			if(input.val().length > 0) {
				//set timeout because event occurs before text is entered
				setTimeout(updateDimensions,0.1);
				input.css("opacity","1");		
			} else {
				closechat();
			}
			
			if(!hidden) {
		
				e.stopPropagation();
				if(messageHistory.length > 0) {
					if(e.keyCode == keys.up)
					{
						if(messagePointer > 0)
						{
							messagePointer--;
							input.val(messageHistory[messagePointer]);
						}
					}
					else if(e.keyCode == keys.down)
					{
						if(messagePointer < messageHistory.length-1)
						{
							messagePointer++;
							input.val(messageHistory[messagePointer]);
						}
						else 
						{
							closechat();
							return;
						}
					}
				}
			}
		});
		input.keyup(function(e) {

			var k = e.keyCode;
			if(input.val().length >= 45)
			{
				input.val(input.val().substr(0,45));
			}

			if(input.val().length > 0) {
				updateDimensions();
				input.css("opacity","1");
				hidden = false;
			} else {
				closechat();
			}
			if(!hidden) {
				if(k == keys.esc || k == keys.enter || (k == keys.space && input.val().length > 35)) {
					if(k != keys.esc && input.val().length > 0) {
					    	messageHistory.push(input.val());
			    			messagePointer = messageHistory.length;
						app.sendMessage(input.val());
					}
					closechat();
				}
				
				e.stopPropagation();

			}
			
		});
		
		input.focus();
	}
	
	$(function() {
		//$('#chat').initChat();
	});
})(jQuery);