Remove almost unused AppService in favor of using flute.exe

FluentTerminal.App/App.xaml.cs

@@ -13,8 +13,6 @@ using System.Linq;
 using System.Threading.Tasks;
 using Windows.ApplicationModel;
 using Windows.ApplicationModel.Activation;
-using Windows.ApplicationModel.AppService;
-using Windows.ApplicationModel.Background;
 using Windows.ApplicationModel.Core;
 using Windows.Storage;
 using Windows.UI.Core;
@@ -27,8 +25,6 @@ namespace FluentTerminal.App
 {
     sealed partial class App : Application
     {
-        public static BackgroundTaskDeferral AppServiceDeferral = null;
-        public static AppServiceConnection Connection = null;
         public static App Instance;
         private bool _alreadyLaunched;
         private IContainer _container;
@@ -108,6 +104,11 @@ namespace FluentTerminal.App
                 var command = arguments[0];
                 var parameter = arguments.Length > 1 ? arguments[1] : string.Empty;
 
+                if (command == "close")
+                {
+                    App.Current.Exit();
+                }
+
                 if (_alreadyLaunched)
                 {
                     if (command == "settings")
@@ -151,18 +152,6 @@ namespace FluentTerminal.App
             }
         }
 
-        protected override void OnBackgroundActivated(BackgroundActivatedEventArgs args)
-        {
-            base.OnBackgroundActivated(args);
-            if (args.TaskInstance.TriggerDetails is AppServiceTriggerDetails details)
-            {
-                AppServiceDeferral = args.TaskInstance.GetDeferral();
-                args.TaskInstance.Canceled += OnTaskCanceled;
-                Connection = details.AppServiceConnection;
-                Connection.RequestReceived += OnRequestReceived;
-            }
-        }
-
         protected override async void OnLaunched(LaunchActivatedEventArgs e)
         {
             if (!_alreadyLaunched)
@@ -237,21 +226,5 @@ namespace FluentTerminal.App
 
             return windowId;
         }
-
-        private void OnRequestReceived(AppServiceConnection sender, AppServiceRequestReceivedEventArgs args)
-        {
-            if (args.Request.Message.ContainsKey("exit"))
-            {
-                App.Current.Exit();
-            }
-        }
-
-        private void OnTaskCanceled(IBackgroundTaskInstance sender, BackgroundTaskCancellationReason reason)
-        {
-            if (AppServiceDeferral != null)
-            {
-                AppServiceDeferral.Complete();
-            }
-        }
     }
 }

FluentTerminal.App/Package.appxmanifest

@@ -26,9 +26,6 @@
         <uap:SplashScreen Image="Assets\AppIcons\SplashScreen.png" uap5:Optional="true" />
       </uap:VisualElements>
       <Extensions>
-        <uap:Extension Category="windows.appService">
-          <uap:AppService Name="FluentTerminalAppService" />
-        </uap:Extension>
         <desktop:Extension Category="windows.fullTrustProcess" Executable="Win32\FluentTerminal.SystemTray.exe" />
         <uap5:Extension Category="windows.appExecutionAlias" Executable="FluentTerminal.App.exe" EntryPoint="FluentTerminal.App.App">
           <uap5:AppExecutionAlias>

FluentTerminal.SystemTray/SystemTrayApplicationContext.cs

@@ -2,18 +2,14 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
-using System.Threading.Tasks;
 using System.Windows.Forms;
 using Windows.ApplicationModel;
-using Windows.ApplicationModel.AppService;
 using Windows.ApplicationModel.Core;
-using Windows.Foundation.Collections;
 
 namespace FluentTerminal.SystemTray
 {
     public class SystemTrayApplicationContext : ApplicationContext
     {
-        private AppServiceConnection _connection;
         private readonly NotifyIcon _notifyIcon;
 
         public SystemTrayApplicationContext()
@@ -34,19 +30,9 @@ namespace FluentTerminal.SystemTray
             _notifyIcon.Visible = true;
         }
 
-        private void Connection_ServiceClosed(AppServiceConnection sender, AppServiceClosedEventArgs args)
+        private void Exit(object sender, EventArgs e)
         {
-            _connection.ServiceClosed -= Connection_ServiceClosed;
-            _connection = null;
-        }
-
-        private async void Exit(object sender, EventArgs e)
-        {
-            var message = new ValueSet
-            {
-                { "exit", string.Empty }
-            };
-            await SendMessage(message);
+            Process.Start("flute.exe", "close");
             Application.Exit();
         }
 
@@ -61,28 +47,6 @@ namespace FluentTerminal.SystemTray
             await appListEntries.First().LaunchAsync();
         }
 
-        private async Task SendMessage(ValueSet message)
-
-        {
-            if (_connection == null)
-            {
-                _connection = new AppServiceConnection
-                {
-                    PackageFamilyName = Package.Current.Id.FamilyName,
-                    AppServiceName = "FluentTerminalAppService"
-                };
-                _connection.ServiceClosed += Connection_ServiceClosed;
-                AppServiceConnectionStatus connectionStatus = await _connection.OpenAsync();
-
-                if (connectionStatus != AppServiceConnectionStatus.Success)
-                {
-                    MessageBox.Show("Status: " + connectionStatus.ToString());
-                    return;
-                }
-            }
-            await _connection.SendMessageAsync(message);
-        }
-
         private void ShowSettings(object sender, EventArgs e)
         {
             Process.Start("flute.exe", "settings");