Code Quality: Add Dummy update service for dev builds (files-communit…

…y#15405)

src/Files.App/Helpers/Application/AppLifecycleHelper.cs

@@ -175,8 +175,10 @@ public static IHost ConfigureHost()
 					.AddSingleton<IAddItemService, AddItemService>()
 #if STABLE || PREVIEW
 					.AddSingleton<IUpdateService, SideloadUpdateService>()
+#elif STORE
+					.AddSingleton<IUpdateService, StoreUpdateService>()
 #else
-					.AddSingleton<IUpdateService, UpdateService>()
+					.AddSingleton<IUpdateService, DummyUpdateService>()
 #endif
 					.AddSingleton<IPreviewPopupService, PreviewPopupService>()
 					.AddSingleton<IDateTimeFormatterFactory, DateTimeFormatterFactory>()

src/Files.App/Services/DummyUpdateService.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Files.App.Services
+{
+	internal sealed class DummyUpdateService : IUpdateService
+	{
+		public bool IsUpdateAvailable => false;
+
+		public bool IsUpdating => false;
+
+		public bool IsAppUpdated => true;
+
+		public bool IsReleaseNotesAvailable => true;
+
+		public event PropertyChangedEventHandler? PropertyChanged { add { } remove { } }
+
+		public Task CheckAndUpdateFilesLauncherAsync()
+		{
+			return Task.CompletedTask;
+		}
+
+		public Task CheckForUpdatesAsync()
+		{
+			return Task.CompletedTask;
+		}
+
+		public Task CheckLatestReleaseNotesAsync(CancellationToken cancellationToken = default)
+		{
+			return Task.CompletedTask;
+		}
+
+		public Task DownloadMandatoryUpdatesAsync()
+		{
+			return Task.CompletedTask;
+		}
+
+		public Task DownloadUpdatesAsync()
+		{
+			return Task.CompletedTask;
+		}
+
+		public Task<string?> GetLatestReleaseNotesAsync(CancellationToken cancellationToken = default)
+		{
+			// No localization for dev-only string
+			return Task.FromResult((string?)"No release notes available for Dev build.");
+		}
+	}
+}

src/Files.App/Services/UpdateService.cs → src/Files.App/Services/StoreUpdateService.cs

@@ -13,7 +13,7 @@
 
 namespace Files.App.Services
 {
-	internal sealed class UpdateService : ObservableObject, IUpdateService
+	internal sealed class StoreUpdateService : ObservableObject, IUpdateService
 	{
 		private StoreContext? _storeContext;
 		private List<StorePackageUpdate>? _updatePackages;
@@ -46,7 +46,7 @@ public bool IsAppUpdated
 			get => SystemInformation.Instance.IsAppUpdated;
 		}
 
-		public UpdateService()
+		public StoreUpdateService()
 		{
 			_updatePackages = [];
 		}