var request = require("request");

var models = {
	"16 GB": "ME341LL%2FA",
	"32 GB": "ME344LL%2FA",
	"64 GB": "ME347LL%2FA"
};

var result = function(size) {
	return function (error, response, body) {
	  if (!error && response.statusCode == 200) {
	  	var obj = body["body"]["stores"][0]["partsAvailability"];
	  	for (var foo in obj) {break}

	  	var status = obj[foo]["pickupDisplay"];

	  	console.log(size, status);

	  	if (status === "available") {
	  		sendPush(size);
	  	}	else {
	  		setTimeout(function() {
	  			check(size);
	  		}, 10000);
	  	}
	  }
	}
}

var check = function(size) {
	var url = "http://store.apple.com/us/retail/availabilitySearch?parts.0=" + models[size] + "&zip=15213";
	request({url:url,json:true}, result(size));
}

var sendPush = function(size) {
	request.post({
		url: "https://api.parse.com/1/push",
		headers: {
			"X-Parse-Application-Id": "5A9EfXnFioaOJqYYo04jDppzxZmn1aFUNJMC4xFx",
			"X-Parse-REST-API-Key": "IwlUrMrHewtGRpAZb6kVNk0o4mCAJtb1I4fJvhLL"
		},
		json : {
			"where": {
	          "deviceType": "ios"
	        },
			"data": {
				"sound" : "",
				"alert" : "iPhone 5s [Space Grey] " + size + " now available @ Shadyside"
			}
		}
	});
}

for (var size in models) {
	check(size);
}