import mx.utils.Delegate;
class com.tonp.utils.LoadQueue
{
	public var queue:Array;
	private var loader:Object;
	private var loading:Number = 0;
	private var error:Boolean = false;
	var percentLoaded:Number= 0 ;
	var percentItemLoaded:Number = 0
	//
	/********* EVENTS *********/
	//
	var onLoadItemStart:Function;
	var onLoadItemError:Function;
	var onLoadItemProgress:Function;
	var onLoadItemComplete:Function;
	var onTotalLoadComplete:Function;
	//
	var onLoadStart:Function;
	var onLoadProgress:Function;
	var onLoadComplete:Function;
	var onLoadError:Function;
	//
	/********* GETTERS *********/
	//
	public function getTotalPercentageloaded()
	{
		return percentLoaded;
	}
	public function getItemPercentageloaded()
	{
		return percentItemLoaded;
	}
	public function getLoadedItems()
	{
		return loading;
	}
	public function getTotalItems()
	{
		return queue.length;
	}
	/*****************/
	public function LoadQueue()
	{
		reset()
	}
	public function addItem(type, src, target,vars)
	{
		queue.push([type, src, target, vars]);
	}
	public function start()
	{
		error = false;
		loadItem(0);
	}
	public function loadItem(id)
	{
		percentItemLoaded = 0
		switch (String(queue[id][0]).toUpperCase()) {
		case "SWF" :
			trace("SWF");
		case "IMAGE" :
			loadImage(queue[id][1], queue[id][2], queue[id][3]);
			break;
		case "XML" :
			loadXML(queue[id][1], queue[id][2], queue[id][3]);
			break;
		case "SCREEN" :
			loadScreen(queue[id][1], queue[id][2], queue[id][3]);
			break;
		default:
			//console.error("LOAD QUEUE: Incorrect LoadType");
		}
	}
	public function loadScreen(src, obj, vars){
		var o = {};
		if(src == ""){
			obj.clearScreen();
		} else {
			o.onLoadStart = Delegate.create(this, onLoadItemStart);
			o.onLoadError = Delegate.create(this, _onLoadItemError);
			o.onLoadProgress = Delegate.create(this, _onLoadProgress);
			o.onLoadInit = Delegate.create(this, _onLoadItemComplete);
			obj.addListener(o);
			obj.loadScreen(src,vars);
		}
	}
	public function loadImage(src, obj,vars)
	{
		var o = {};
		trace ("LOAD IMAGE"+src+":"+obj);
		o.onLoadStart = Delegate.create(this, onLoadItemStart);
		o.onLoadError = Delegate.create(this, _onLoadItemError);
		o.onLoadProgress = Delegate.create(this, _onLoadProgress);
		//o.onLoadComplete = Delegate.create(this, _onLoadComplete);
		o.onLoadInit = Delegate.create(this, _onLoadItemComplete);
		loader = new MovieClipLoader();
		loader.addListener(o);
		loader.loadClip(src, obj);
	}
	public function loadXML(src, obj)
	{
		onLoadItemStart();
		obj.load(src);
		obj.onLoad = Delegate.create(this, _onLoadItemComplete);
	}
	private function _onLoadItemError()
	{
		error = true;
	}
	private function _onLoadComplete(){
		// populate object vars
		//if(var i in queue[loading][3]){
		//	queue[loading][2][i] = queue[loading][3][i];
		//}
		onTotalLoadComplete()
	}
	private function _onLoadItemComplete()
	{
		loading++;
		var s = String(queue[loading][0]).toUpperCase();
		if (s == "XML") {
			if (!arguments[0]) {
				error = true;
				onLoadItemError();
			} else {
				onLoadProgress();
				onLoadItemComplete();
			}
		} else {
			onLoadProgress();
			onLoadItemComplete();
		}
		
		if (loading<queue.length) {
			loadItem(loading);
		} else {
			if (!error) {
				onLoadComplete();
			} else {
				onLoadError();
			}
		}
	}
	public function _onLoadProgress(mc, loadedBytes, totalBytes){
		var n = loading*(100/queue.length);
		var s = String(queue[loading][0]).toUpperCase();
		if (s == "SWF" || s == "IMAGE" || "SCREEN") {
			percentItemLoaded = loadedBytes/totalBytes*100
			n += (percentItemLoaded/queue.length);
		}
		percentLoaded = n;
		onLoadItemProgress();
		onLoadProgress();
	}
	public function reset()
	{
		loading = 0;
		queue = [];
	}
}