//定期获取超值旅游线路
(new TimerManager()).addTimer(new Timer(
	'bargain',
	config.cheap.delay,
	config.cheap.interval,
	function() {
		var newest = JSON.parse($.ajax({url: config.urls.cheapNotice + encodeURIComponent(Storage.get('location')), async: false}).responseText),
			now = Util.date.now(),
			lastPopup = parseInt(Storage.getWithDefault('lastCheapPopupTime', '0'));
		
		if (newest && newest.createTime * 1000 > lastPopup && !newest.abandon && newest.expirationTime * 1000 > now) {
			Storage.set('showStage', {
				name: 'bargainFound',
				data: newest
			});
			Storage.set('lastCheapPopupTime', now);
			Util.popup();
		}
	}
));

//图标转动
(new TimerManager()).addTimer(new Timer(
	'flip',
	0,
	config.monitor.flip,
	function() {
		var canvas = document.getElementById('canvasWrap'),
			canvasContext = canvas.getContext('2d'),
			rotation = 0,
			animationFrames = 36,
			animationSpeed = 12,
		
			ease = function(x) {
				return (1-Math.sin(Math.PI/2+x*Math.PI))/2;
			},
	
			drawIconAtRotation = function() {
				canvasContext.save();
				canvasContext.clearRect(0, 0, canvas.width, canvas.height);
				canvasContext.translate(
					Math.ceil(canvas.width/2),
					Math.ceil(canvas.height/2)
				);
				canvasContext.rotate(2*Math.PI*ease(rotation));
				canvasContext.drawImage(
					document.getElementById('hasData'),
					- Math.ceil(canvas.width/2),
					- Math.ceil(canvas.height/2)
				);
				canvasContext.restore();
				
				chrome.browserAction.setIcon({imageData:canvasContext.getImageData(0, 0, canvas.width, canvas.height)});
			},
			
			animateFlip = function() {
				rotation += 1/animationFrames;
				drawIconAtRotation();
				
				if (rotation <= 1) {
					setTimeout(animateFlip, animationSpeed);
				} else {
					rotation = 0;
				}
			};
		
		animateFlip();
	}
));