Remove SessionConntectedTask.

Wino.BackgroundTasks/SessionConnectedTask.cs

@@ -1,19 +0,0 @@
-using System;
-using Windows.ApplicationModel;
-using Windows.ApplicationModel.Background;
-
-namespace Wino.BackgroundTasks
-{
-    public sealed class SessionConnectedTask : IBackgroundTask
-    {
-        public async void Run(IBackgroundTaskInstance taskInstance)
-        {
-            var def = taskInstance.GetDeferral();
-
-            // Run server on session connected by launching the Full Thrust process.
-            await FullTrustProcessLauncher.LaunchFullTrustProcessForCurrentAppAsync();
-
-            def.Complete();
-        }
-    }
-}

Wino.BackgroundTasks/Wino.BackgroundTasks.csproj

@@ -104,7 +104,6 @@
   <ItemGroup>
     <Compile Include="AppUpdatedTask.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="SessionConnectedTask.cs" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform">

Wino.Core.Domain/Interfaces/IBackgroundTaskService.cs

@@ -1,16 +1,7 @@
-using System.Threading.Tasks;
+namespace Wino.Core.Domain.Interfaces
-
-namespace Wino.Core.Domain.Interfaces
 {
     public interface IBackgroundTaskService
     {
-        /// <summary>
-        /// Manages background task registrations, requests access if needed, checks the statusses of them etc.
-        /// </summary>
-        /// <exception cref="BackgroundTaskExecutionRequestDeniedException">If the access request is denied for some reason.</exception>
-        /// <exception cref="BackgroundTaskRegistrationFailedException">If one of the requires background tasks are failed during registration.</exception>
-        Task HandleBackgroundTaskRegistrations();
-
         /// <summary>
         /// Unregisters all existing background tasks. Useful for migrations.
         /// </summary>

Wino.Core.UWP/Services/BackgroundTaskService.cs

@@ -1,6 +1,4 @@
-using System;
+using Serilog;
-using System.Threading.Tasks;
-using Serilog;
 using Windows.ApplicationModel.Background;
 using Wino.Core.Domain.Interfaces;
 
@@ -8,12 +6,7 @@ namespace Wino.Core.UWP.Services
 {
     public class BackgroundTaskService : IBackgroundTaskService
     {
-        private const string Is180BackgroundTasksRegisteredKey = nameof(Is180BackgroundTasksRegisteredKey);
+        private const string IsBackgroundTasksUnregisteredKey = nameof(IsBackgroundTasksUnregisteredKey);
-
-        public const string ToastActivationTaskEx = nameof(ToastActivationTaskEx);
-
-        private const string SessionConnectedTaskEntryPoint = "Wino.BackgroundTasks.SessionConnectedTask";
-        private const string SessionConnectedTaskName = "SessionConnectedTask";
 
         private readonly IConfigurationService _configurationService;
 
@@ -22,48 +15,17 @@ namespace Wino.Core.UWP.Services
             _configurationService = configurationService;
         }
 
-        public async Task HandleBackgroundTaskRegistrations()
-        {
-            bool is180BackgroundTaskRegistered = _configurationService.Get<bool>(Is180BackgroundTasksRegisteredKey);
-
-            // Don't re-register tasks.
-            if (is180BackgroundTaskRegistered) return;
-
-            var response = await BackgroundExecutionManager.RequestAccessAsync();
-
-            if (response != BackgroundAccessStatus.DeniedBySystemPolicy ||
-                response != BackgroundAccessStatus.DeniedByUser)
-            {
-                // Unregister all tasks and register new ones.
-
-                UnregisterAllBackgroundTask();
-                RegisterSessionConnectedTask();
-
-                _configurationService.Set(Is180BackgroundTasksRegisteredKey, true);
-            }
-        }
-
         public void UnregisterAllBackgroundTask()
         {
-            foreach (var task in BackgroundTaskRegistration.AllTasks)
+            if (_configurationService.Get<bool>(IsBackgroundTasksUnregisteredKey, false))
             {
-                task.Value.Unregister(true);
+                foreach (var task in BackgroundTaskRegistration.AllTasks)
+                {
+                    task.Value.Unregister(true);
+                }
+
+                Log.Information("Unregistered all background tasks.");
             }
-
-            Log.Information("Unregistered all background tasks.");
-        }
-
-        private BackgroundTaskRegistration RegisterSessionConnectedTask()
-        {
-            var builder = new BackgroundTaskBuilder
-            {
-                Name = SessionConnectedTaskName,
-                TaskEntryPoint = SessionConnectedTaskEntryPoint
-            };
-
-            builder.SetTrigger(new SystemTrigger(SystemTriggerType.SessionConnected, false));
-
-            return builder.Register();
         }
     }
 }

Wino.Mail.ViewModels/AppShellViewModel.cs

@@ -236,14 +236,14 @@ namespace Wino.Mail.ViewModels
             await ProcessLaunchOptionsAsync();
 
             await ForceAllAccountSynchronizationsAsync();
-            await ConfigureBackgroundTasksAsync();
+            ConfigureBackgroundTasks();
         }
 
-        private async Task ConfigureBackgroundTasksAsync()
+        private void ConfigureBackgroundTasks()
         {
             try
             {
-                await _backgroundTaskService.HandleBackgroundTaskRegistrations();
+                _backgroundTaskService.UnregisterAllBackgroundTask();
             }
             catch (Exception ex)
             {

Wino.Packaging/Package.appxmanifest

@@ -55,13 +55,6 @@
 			<!-- App updated task. Notifies about new version after each Store update. -->
 			<Extension Category="windows.updateTask" EntryPoint="Wino.BackgroundTasks.AppUpdatedTask" />
 
-			<!-- SessionConnected task for background synchronization on startup. -->
-			<Extension Category="windows.backgroundTasks" EntryPoint="Wino.BackgroundTasks.SessionConnectedTask">
-				<BackgroundTasks>
-					<Task Type="systemEvent" />
-				</BackgroundTasks>
-			</Extension>
-
 			<!-- Protocol activation: mailto -->
 			<uap:Extension Category="windows.protocol">
 				<uap:Protocol Name="mailto" />