chrome.extension.onRequest.addListener(function(request, sender, sendResponse) {
	switch (request.type) {
	case 'addMonitor':
		handleAddMonitor(request, sendResponse);
		break;
	case 'removeMonitor':
		sendResponse(handleRemoveMonitor(request));
		break;
	case 'updateErrorStatus':
		sendResponse(handleUpdateErrorStatus(request));
		break;
	case 'receiveBargain':
		(new TimerManager()).getTimer('bargain').start();
		break;
	case 'refuseBargain':
		(new TimerManager()).getTimer('bargain').halt();
		break;
	}
});

chrome.extension.onConnect.addListener(function(port) {
	switch (port.name) {
	case 'retryMonitor':
		port.onMessage.addListener(function(message) {
			(new FlightMonitorBox()).get(message.flightId).flight.getData(
				config.monitor.retryTimes,
				true,
				function(response) {
					delete (new FlightMonitorBox()).get(message.flightId).error;
					(new FlightMonitorBox()).persistenceOne(message.flightId);
					port.postMessage({flightId: message.flightId});
					handleUpdateErrorStatus();
				},
				function(error) {
					(new FlightMonitorBox()).get(message.flightId).error = error;
					(new FlightMonitorBox()).persistenceOne(message.flightId);
					port.postMessage({flightId: message.flightId, error: error});
				}
			);
		});

		break;
	}
});

var handleAddMonitor = function(request, sendResponse) {
	var flight = FlightFactory.getFromId(request.flightId),
		monitor = request.monitor,
		error;
		
	flight.getData(
		true,
		true,
		function(data) {
			monitor.time = Util.date.now();
			monitor.lastTime = monitor.time;
			
			(new FlightMonitorBox()).add(
				flight,
				monitor,
				request.lastShowedPrice
			).persistence();
			
			Util.updateIcon('icons/icon_16.png');
			(new TimerManager()).getTimer('flip').start();
			
			(new TimerManager()).addTimer(getFlightTimer(request.flightId));
			(new TimerManager()).getTimer(request.flightId).start();

			$.post(
				'http://api.liebao.cn/flight-extension/qunar/?c=follow_qunar',
				{
					from: flight.query.from,
					to: flight.query.to,
					start: Util.date.format(flight.query.date[0]),
					end: Util.date.format(flight.query.date[1])
				}
			);
			sendResponse({
				status: 0
			});
		},
		function(error) {
			(new FlightMonitorBox()).remove(request.flightId).persistence();
			sendResponse({
				status: 1,
				error: e
			});
		}
	);
};

var handleRemoveMonitor = function(request) {
	(new FlightMonitorBox()).remove(request.flightId).persistence();
	
	if ((new FlightMonitorBox()).getCount() <= 0) {
		Util.updateIcon('icons/gray.png');
		(new TimerManager()).getTimer('flip').halt();
	}
	
	(new TimerManager()).deleteTimer(request.flightId);
	
	return handleUpdateErrorStatus(request);
};

var handleUpdateErrorStatus = function(request) {
	var hasError = false,
		flights = (new FlightMonitorBox()).getAll(),
		flightId;
	
	for (flightId in flights) {
		if (flights[flightId].error !== undefined) {
			hasError = true;
			break;
		}
	}
	
	if (hasError === false) {
		chrome.browserAction.setBadgeText({text: ''});
	} else {
		chrome.browserAction.setBadgeText({text: '!'});
	}

	return {status: hasError ? 1 : 0};
};