From 6da0d3e88daca1c69be3bcb2965611845b72d609 Mon Sep 17 00:00:00 2001
From: Kyle Spearrin <kyle.spearrin@gmail.com>
Date: Mon, 9 Oct 2017 23:53:06 -0400
Subject: [PATCH] push for uwp

---
 .../PushNotificationImplementation.cs         | 124 ++++++++++++++++++
 src/UWP/UWP.csproj                            |   1 +
 2 files changed, 125 insertions(+)
 create mode 100644 src/UWP/Services/PushNotificationImplementation.cs

diff --git a/src/UWP/Services/PushNotificationImplementation.cs b/src/UWP/Services/PushNotificationImplementation.cs
new file mode 100644
index 000000000..beb442089
--- /dev/null
+++ b/src/UWP/Services/PushNotificationImplementation.cs
@@ -0,0 +1,124 @@
+using Bit.App.Abstractions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using System;
+using System.Diagnostics;
+using System.Threading;
+using Windows.Networking.PushNotifications;
+using Xamarin.Forms;
+
+namespace Bit.UWP.Services
+{
+    public class PushNotificationImplementation : IPushNotification
+    {
+        private PushNotificationChannel _channel;
+        private JsonSerializer serializer = new JsonSerializer()
+        {
+            ReferenceLoopHandling = ReferenceLoopHandling.Ignore
+        };
+
+        public string Token => _channel?.Uri.ToString();
+
+        public void Register()
+        {
+            Debug.WriteLine("Creating Push Notification Channel For Application");
+            var channelTask = PushNotificationChannelManager.CreatePushNotificationChannelForApplicationAsync().AsTask();
+            channelTask.Wait();
+
+            Debug.WriteLine("Creating Push Notification Channel For Application - Done");
+            _channel = channelTask.Result;
+
+            Debug.WriteLine("Registering call back for Push Notification Channel");
+            _channel.PushNotificationReceived += Channel_PushNotificationReceived;
+
+            CrossPushNotification.PushNotificationListener.OnRegistered(Token, Device.Windows);
+        }
+
+        private void Channel_PushNotificationReceived(PushNotificationChannel sender, PushNotificationReceivedEventArgs args)
+        {
+            Debug.WriteLine("Push Notification Received " + args.NotificationType);
+            JObject jobject = null;
+
+            switch(args.NotificationType)
+            {
+                case PushNotificationType.Badge:
+                    jobject = JObject.FromObject(args.BadgeNotification, serializer);
+                    break;
+
+                case PushNotificationType.Raw:
+                    jobject = JObject.FromObject(args.RawNotification, serializer);
+                    break;
+
+                case PushNotificationType.Tile:
+                    jobject = JObject.FromObject(args.TileNotification, serializer);
+                    break;
+                case PushNotificationType.TileFlyout:
+                    jobject = JObject.FromObject(args.TileNotification, serializer);
+                    break;
+                case PushNotificationType.Toast:
+                    jobject = JObject.FromObject(args.ToastNotification, serializer);
+                    break;
+            }
+
+            Debug.WriteLine("Sending JObject to PushNotificationListener " + args.NotificationType);
+            CrossPushNotification.PushNotificationListener.OnMessage(jobject, Device.Windows);
+        }
+
+        public void Unregister()
+        {
+            if(_channel != null)
+            {
+                _channel.PushNotificationReceived -= Channel_PushNotificationReceived;
+                _channel = null;
+            }
+
+            CrossPushNotification.PushNotificationListener.OnUnregistered(Device.Windows);
+        }
+    }
+
+    internal class CrossPushNotification
+    {
+        private static Lazy<IPushNotification> Implementation = new Lazy<IPushNotification>(
+            () => new PushNotificationImplementation(),
+            LazyThreadSafetyMode.PublicationOnly);
+        public static bool IsInitialized => PushNotificationListener != null;
+        public static IPushNotificationListener PushNotificationListener { get; private set; }
+
+        public static void Initialize<T>(T listener) where T : IPushNotificationListener
+        {
+            if(PushNotificationListener == null)
+            {
+                PushNotificationListener = listener;
+                Debug.WriteLine("PushNotification plugin initialized.");
+            }
+            else
+            {
+                Debug.WriteLine("PushNotification plugin already initialized.");
+            }
+        }
+
+        public static void Initialize<T>() where T : IPushNotificationListener, new()
+        {
+            Initialize(new T());
+        }
+
+        public static IPushNotification Current
+        {
+            get
+            {
+                if(!IsInitialized)
+                {
+                    throw new Exception("Not initialized.");
+                }
+
+                var ret = Implementation.Value;
+                if(ret == null)
+                {
+                    throw new Exception("Not in PCL");
+                }
+
+                return ret;
+            }
+        }
+    }
+}
diff --git a/src/UWP/UWP.csproj b/src/UWP/UWP.csproj
index 3b0678f48..6a12499ce 100644
--- a/src/UWP/UWP.csproj
+++ b/src/UWP/UWP.csproj
@@ -105,6 +105,7 @@
     <Compile Include="Services\DeviceInfoService.cs" />
     <Compile Include="Services\GoogleAnalyticsService.cs" />
     <Compile Include="Services\HttpService.cs" />
+    <Compile Include="Services\PushNotificationImplementation.cs" />
     <Compile Include="Services\ReflectionService.cs" />
     <Compile Include="Services\SecureStorageService.cs" />
     <Compile Include="Services\KeyDerivationService.cs" />