var myApp = {};
var pushNotifications = Windows.Networking.PushNotifications;

var createNotificationJSON = function (e) {
  var result = { message: '' }; // Added to identify callback as notification type in the API in case where notification has no message
  var notificationPayload;

  switch (e.notificationType) {
  case pushNotifications.PushNotificationType.toast:
  case pushNotifications.PushNotificationType.tile:
    if (e.notificationType === pushNotifications.PushNotificationType.toast) {
      notificationPayload = e.toastNotification.content;
    } else {
      notificationPayload = e.tileNotification.content;
    }
    var texts = notificationPayload.getElementsByTagName('text');
    if (texts.length > 1) {
      result.title = texts[0].innerText;
      result.message = texts[1].innerText;
    } else if (texts.length === 1) {
      result.message = texts[0].innerText;
    }
    var images = notificationPayload.getElementsByTagName('image');
    if (images.length > 0) {
      result.image = images[0].getAttribute('src');
    }
    var soundFile = notificationPayload.getElementsByTagName('audio');
    if (soundFile.length > 0) {
      result.sound = soundFile[0].getAttribute('src');
    }
    break;

  case pushNotifications.PushNotificationType.badge:
    notificationPayload = e.badgeNotification.content;
    result.count = notificationPayload.getElementsByTagName('badge')[0].getAttribute('value');
    break;

  case pushNotifications.PushNotificationType.raw:
    result.message = e.rawNotification.content;
    break;
  }

  result.additionalData = { coldstart: false }; // this gets called only when the app is running
  result.additionalData.pushNotificationReceivedEventArgs = e;
  return result;
};

module.exports = {
  init: function (onSuccess, onFail, args) {
    var onNotificationReceived = function (e) {
      var result = createNotificationJSON(e);
      onSuccess(result, { keepCallback: true });
    };

    try {
      pushNotifications.PushNotificationChannelManager.createPushNotificationChannelForApplicationAsync().done(
        function (channel) {
          var result = {};
          result.registrationId = channel.uri;
          myApp.channel = channel;
          channel.addEventListener('pushnotificationreceived', onNotificationReceived);
          myApp.notificationEvent = onNotificationReceived;
          onSuccess(result, { keepCallback: true });

          var context = cordova.require('cordova/platform').activationContext;
          var launchArgs = context ? (context.argument || context.args) : null;
          if (launchArgs) { // If present, app launched through push notification
            result = { message: '' }; // Added to identify callback as notification type in the API
            result.launchArgs = launchArgs;
            result.additionalData = { coldstart: true };
            onSuccess(result, { keepCallback: true });
          }
        }, function (error) {
          onFail(error);
        });
    } catch (ex) {
      onFail(ex);
    }
  },
  unregister: function (onSuccess, onFail, args) {
    try {
      myApp.channel.removeEventListener('pushnotificationreceived', myApp.notificationEvent);
      myApp.channel.close();
      onSuccess();
    } catch (ex) {
      onFail(ex);
    }
  },
  hasPermission: function (onSuccess) {
    var notifier = Windows.UI.Notifications.ToastNotificationManager.createToastNotifier();

    onSuccess({ isEnabled: !notifier.setting });
  },
  subscribe: function () {
    console.log('Subscribe is unsupported');
  },
  unsubscribe: function () {
    console.log('Subscribe is unsupported');
  }
};
require('cordova/exec/proxy').add('PushNotification', module.exports);