(function(){
	var TaskRunner = this.taskrunner = new Class({
		Implements: [Events,Options],
		options:{
			stateClass:{
				error:'error2',
				loading:'loading',
				complete:'complete',
				success:''
			},
			showStep:'.appNum',
			showAppName:'.appName',
			container:false,
			dataClass:'.tasks_ipt'
		},
		initialize:function(tasks,options){
			this.setOptions(options);
			this.tasks=$splat(tasks);
			if(!this.tasks)return;
			this.num=this.tasks.length||0;
			this.container=$(this.options.container);
		},
		init:function(container){
			if(!this.iframe)
			this.iframe = this.options.iframe?this.options.iframe: new Element('iframe',{src:'about:blank',name:'_TASK_IFRM_',style:'display:none;height:100%;width:100%'});
			container=container||this.container;
			this.iframe.inject(container||document.body);
			this.form = this.form||new Element('form',{style:'display:none',method:'post',target:this.iframe.name}).inject(document.body);

			var options=this.options;
			if(!container)return this;
			this.showStep=container.getElement(options.showStep);
			this.appName=container.getElement(options.showAppName);
			this.items=container.getElements('.box');

			return this;
		},
		getText:function(){
			var temp = document.createElement('div');
			return this[(temp.innerText == null) ? 'textContent' : 'innerText'];
		},
		createFormData:function(ipt){
			if(!this.form)return this;
			this.form.empty();
			var options=this.options,fdoc=document.createDocumentFragment(),
				data=ipt?ipt:$ES(options.dataClass);
			if(data&&data.length)
			data.each(function(ipt,k){
				var n=ipt.name,v=ipt.value;
				fdoc.appendChild(new Element('input',{type:'hidden','name':n,value:v}));
			});
			this.form.appendChild(fdoc);
			return this;
		},
		loader:function(){
			if(this.items&&this.items.length)this.items[this.prestep].addClass(this.options.stateClass.loading);
			if(this.showStep)this.showStep.setText(this.step);
			if(this.appName)this.appName.setText(this.items[this.prestep].get('appname'));

			return this.fireEvent('loader');
		},
		cancel:function(){
			return this.fireEvent('cancel',this.step);
		},
		run:function(actions){
			this.extra_action=actions;
			this.init(this.container).fireEvent('load',[this.tasks]).createFormData();
			if(actions)return this.progress(actions);
			return this.start();
		},
		start:function(step,actions){
			this.step=step||1;
			this.prestep=this.step-1;
			this.actions=actions||this.tasks[this.prestep];
			return this.fireEvent('start').loader().progress(this.actions);
		},
		error:function(text){
			if(text)alert(text);

			var stateClass=this.options.stateClass;
			if(this.items&&this.items.length&&this.items[this.prestep])
			this.items[this.prestep].removeClass(stateClass.loading).addClass(stateClass.error);

			return this.fireEvent('error',text).cancel();
		},
		next:function(step){
			var steps=(step||0)+1;
			return this.start(steps);
		},
		progress:function(actions){
			if(!actions)return this;
			var action=actions||this.actions,iframe=this.iframe,_this=this,rsp,req;
			req = new Request({
					url : action,
					method : 'post',
					data : this.createFormData().form.toQueryString(),
					onComplete : function(rs){
						_this.check(rs);
					}
				}).send();
			return this.fireEvent('progress');
		},
		check:function(messageText){	
			this.result=/(\s*)ok\.(\s*)/.test(messageText.slice(-4));

			this.fireEvent('check',messageText);
			var error=messageText.slice(-500);
			messageText.slice(-500).replace(/Error:(\s\S+)/,function(){
				  var arg=arguments;error=arg[1];
			});
			return this.result?this.complete():this.error(error);
		},
		complete:function(){
			this.fireEvent('complete');
			if(this.extra_action){delete this.extra_action;return this.start(1);}

			var stateClass=this.options.stateClass;
			if(this.items&&this.items.length)
			this.items[this.prestep].removeClass(stateClass.loading).addClass(stateClass.complete);

			if(!this.step&&!this.num)return this.success();
			var step=this.step||0;
			return this[step==this.num?'success':'next'](step);
		},
		success:function(){
			if(this.form)this.form.destroy();
			return this.fireEvent('success');
		}
	});



	var cmdrunner = this.cmdrunner = new Class({
		Extends:TaskRunner,
		options:{
			title:'',
			singlon:true
		},
		delayT:function(){

			if(!this.iframe.contentWindow)return this;

			var doc=this.iframe.contentWindow.document.body;

			if(!doc)return this;

			var text=this.getText.call(doc);

			text.replace(/[>|\n]([^\n]+)/gi,function($1,$2){
				if($2.trim().length>1)
				this.csolinfo.set('text',$2);
			}.bind(this));

			return this;
		},
		startTimer:function(){
			this.timer= this.delayT.periodical(200,this);
			return this;
		},
		stopTimer:function(){
			if(this.timer) $clear(this.timer);
			return this;
		},
		check:function(iframe){
			this.stopTimer().delayT();
			return this.parent(iframe);
		},
		createTpl:function(){
			var queue=this.tasks,type=queue.filter(function(el){return el.type!=='dialog';}),html=this.options.singlon?'':'<h5>'+LANG_Cmdrunner['title']+'</h5>';
			html+='<ul class="division apptip">';
			if(type.length)
			type.each(function(t,i){
				var n=t.name||this.options.title;
				html+='<li class="box" appname="'+n+'">'+n+'</li>';
			},this);
			var num=queue.filter(function(q){return q.type!='dialog';}).length;
			html+='</ul>';
			this.theme=this.options.singlon?html:html+'<div class="division loader"><em class="appNum">0</em>/<em>'+num+'</em><span class="appName"></span></div>';
			var csol='<div class="console"><p class="csolinfo">loading...</p><span class="lnk csol" onClick="_open(\'index.php?app=desktop&ctl=appmgr&act=app_console\')">'+LANG_Cmdrunner['console']+'</span></div>';
			this.container.innerHTML=this.theme+csol;
			this.csolinfo=$E('.csolinfo',this.container);
			return this;
		},
		close:function(d){
			var dialog=d||this.dialog;
			if(dialog)dialog.close.delay(800,dialog);return this;
		},
		adddialog:function(url){
		   return new Dialog(url,{title:this.options.title,height:200,width:600,modal:true,resizeable:false,onClose:function(){this.stopTimer();}.bind(this)});
		},
		progress:function(task){
			var url;
			switch(task.type){
				case 'command':
				url='index.php?app=desktop&ctl=appmgr&act=command&command_id='+task.command_id +'&data='+ encodeURIComponent(task.data);
				this.startTimer().parent(url);
				break;
				case 'dialog':
				url = 'index.php?app=desktop&ctl=appmgr&act='+task.action +'&data='+encodeURIComponent(task.data);
				this.tasks.splice(this.prestep,1);
				this.num=this.tasks.length;
				this.stopTimer();
				new Request.HTML({url:url,append:this.appinfo,
					onComplete:function(){
						var appbtn=this.appinfo.getElement('.appbtn');
						if(appbtn){
							this.container.hide();
							appbtn.addEvent('click',function(){
								this.container.show();
								this.appinfo.hide();
								this.start(this.step);
							}.bind(this));
						}else{
							this.start(this.step);
						}
				}.bind(this)}).get();
				break;
				default:this.startTimer().parent(task); break;
			}
		},
		init:function(){
			this.container=this.container||new Element('div',{'class':'appbox','html':this.theme||''});
			this.dialog =this.adddialog.call(this,this.container);
			this.appinfo=new Element('div',{'class':'appinfo'}).inject(this.container,'before');
			this.createTpl().parent(this.container);
			return this;
		},
		success:function(){
			this.parent();
			if(this.options.singlon)this.close();
			MessageBox.success(LANG_Cmdrunner['success']);
		}
	});

	this.appmgr =function(appdata){
		return new ApplicationManager(appdata,{'onSuccess':function(){
					if(!finderGroup)return;
					for(var f in finderGroup){
						if(finderGroup[f])finderGroup[f].refresh();
					}
				}});
	}

	var ApplicationManager = new Class({
		Extends:TaskRunner,
		type:{
			install:LANG_Cmdrunner['install'],
			uninstall:LANG_Cmdrunner['uninstall'],
			update:LANG_Cmdrunner['update'],
			pause:LANG_Cmdrunner['stop'],
			active:LANG_Cmdrunner['start'],
			download:LANG_Cmdrunner['download']
		},
		run:function(app_id){
			this.app_id=app_id;
			this.parent();
		},
		init:function(){return this;},
		progress:function(actions){
			new Request.JSON({url: 'index.php?app=desktop&ctl=appmgr&act=prepare&action='+actions,
			onSuccess: this.prepare.bind(this)}).post({'action':actions,'app_id':this.app_id});
		},
		prepare:function(prepare_result){
			if(!prepare_result)return this.error();
			switch(prepare_result.status){
				case 'confirm':
				var confirm_result = window.confirm(prepare_result.message);
				if(!confirm_result){if(this.dialog)this.dialog.close();return this;}
				break;
				case 'alert':
				alert(prepare_result.message);return;
				break;
				case 'error': break;
				default:break;
			}
			var type=this.type;
			this.queue= prepare_result.queue;
			if(this.dialog)this.dialog.close();
			this.runner=new cmdrunner(this.queue,{
				title:type[this.tasks[this.prestep]]+':'+this.app_id,
				singlon:false,onSuccess:this.complete.bind(this)
			});
			this.runner.run();
			return this.dialog=this.runner.dialog;
		},
		success:function(){
			this.parent().runner.close(this.dialog);
		}
	});

})();