[TIMOB-14666] Android: push notification icon does not show the default icon if the chosen one is missing

(function() {
	var platform = null;
	var type = null;
	var deviceToken = null;
	var username = null;
 
	var label = null;
 
	// Cloud modules
	var CloudPush = null; // required for Android
	var Cloud = require('ti.cloud');
 
	function init() {
		platform = Ti.Platform.osname;
		type = platform;
 
		switch(platform) {
			case "iphone":
			case "ipad":
				type = "ios";
				buildUI();
				break;
 
			case "android":
				CloudPush = require("ti.cloudpush");
				CloudPush.debug = true;
 
				buildUI();
				break;
 
			default:
				showError("Platform not supported!");
		}
	}
 
	function buildUI() {
		var win = Ti.UI.createWindow({
		    backgroundColor : 'black',
		    layout: 'vertical'
		});
 
		var title = Ti.UI.createLabel({
			text: "Appcelerator Cloud Services",
			font: {
				fontSize: "20dp"
			},
			color: "white",
			top: "10dp",
			height: Ti.UI.SIZE
		})
 
		win.add(title);
 
		var btn = Ti.UI.createButton({
			title: "Subscribe",
			height: Ti.UI.SIZE,
			top: '10dp'
		});
 
		btn.addEventListener('click', function(e) {
			label.text = "";
 
			// login the default user
			checkUser();
		});
 
		win.add(btn);
 
		label = Ti.UI.createLabel({
			text: "",
			width: Ti.UI.FILL,
			height: Ti.UI.FILL,
			color: "#dddddd",
			top: '10dp'
		});
 
		win.add(label);
 
		win.open();
	}
 
	function checkUser(retrying) {
		Cloud.Users.logout(function (e) {
	    	username = Ti.App.Properties.getString('username');
			if(username) {
				loginUser(retrying);
			} else {
				username = "";
				for(var i=0; i<10; i++) {
					username += ("" + Math.floor(10 * Math.random()));
				}
 
				addLog("Registering user " + username + "...");
				Cloud.Users.create({
					username: username,
			        password: 'logmein',
			        password_confirmation: 'logmein'
			    }, function (e) {
			        if (e.success) {
			            addLog("User registered.");
			            Ti.App.Properties.setString('username', username);
			            loginUser(retrying);
			        } else {
			            showError(e);
			        }
			    });
			} 
	    });
	}
 
	function loginUser(retrying) {
		addLog("Logging in as " + username + "...");
		Cloud.Users.login({
            login : username,
            password : 'logmein'
        }, function(e) {
            if (e.success) {
            	addLog("Logged in as " + username + ".");
                getDeviceToken();
            } else {
            	if(retrying) {
            		showError(e);
            	} else {
	                // try recreating the user
	                Ti.App.Properties.setString('username', null);
	                checkUser(true);
	            }
            }
        });
	}
 
	function getDeviceToken() {
		switch(type) {
		case "android":
			CloudPush.retrieveDeviceToken({
			    success : registrationSuccess,
			    error : showError
			});
			break;
 
		case "ios":
			Titanium.Network.registerForPushNotifications({
				types: [
					Titanium.Network.NOTIFICATION_TYPE_ALERT
				],
 
				success: registrationSuccess,
				error: showError,
				callback: handleNotification
			});
			break;
		}
	}
 
	function defaultUnsubscribe() {
		Cloud.PushNotifications.unsubscribe({
			device_token: deviceToken
		}, function(e) {
			defaultSubscribe();
		});
	}
 
	function defaultSubscribe() {
		Cloud.PushNotifications.subscribe({
			channel: 'alert',
			type: type,
			device_token: deviceToken
		},
			function (e) {
				if (e.success) {
					addLog("Subscribed to the alert channel");
				} else {
					addLog("Already subscribed to the alert channel");
				}
 
				addLog("Ready to receive notifications");
			});
 
		switch(type) {
		case "android":
		    CloudPush.addEventListener('callback', function(e) {
			    handleNotification(e);
			});
		}
	}
 
	function registrationSuccess(e) {
		deviceToken = e.deviceToken;
		addLog("Got device token: " + deviceToken);
 
		if(platform == "android") {
			CloudPush.enabled = true;
		}
 
		defaultUnsubscribe();
	}
 
	function showError(e) {
		alert('Error: ' + ((e.error && e.message) || JSON.stringify(e)));
	}
 
	function handleNotification(e) {
		addLog("Notification received");
		if(e && e.payload && e.payload.alert) {
			alert(e.payload.alert);
		} else {
			alert(JSON.stringify(e));
		}
	}
 
	function addLog(text) {
		label.text = label.text + "\n" + text;
	}
 
	init();
})();