refactor: converted to ReactiveUI, builds, let's see if it runs...

.claude/settings.json

@@ -0,0 +1,8 @@
+{
+  "permissions": {
+    "allow": [
+      "mcp__serena__list_dir",
+      "Bash(dotnet build:*)"
+    ]
+  }
+}

src/AStar.Dev.File.App/AStar.Dev.File.App.csproj

@@ -13,6 +13,10 @@
     <AvaloniaResource Include="Assets\**" />
   </ItemGroup>
 
+  <ItemGroup>
+    <None Include="FodyWeavers.xml" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Logging" Version="10.0.5" />
     <PackageReference Include="Serilog" Version="4.3.1" />
@@ -29,7 +33,8 @@
       <PrivateAssets Condition="'$(Configuration)' != 'Debug'">All</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Avalonia.Controls.DataGrid" Version="11.3.13" />
-    <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.2" />
+    <PackageReference Include="Avalonia.ReactiveUI" Version="11.3.9" />
+    <PackageReference Include="ReactiveUI.Fody" Version="19.5.41" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="10.0.5" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.5">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

src/AStar.Dev.File.App/FodyWeavers.xml

@@ -0,0 +1,3 @@
+<Weavers xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="FodyWeavers.xsd">
+  <ReactiveUI />
+</Weavers>

src/AStar.Dev.File.App/Program.cs

@@ -1,4 +1,5 @@
 using Avalonia;
+using Avalonia.ReactiveUI;
 using System;
 
 namespace AStar.Dev.File.App;
@@ -17,5 +18,6 @@ public static AppBuilder BuildAvaloniaApp()
         => AppBuilder.Configure<App>()
             .UsePlatformDetect()
             .WithInterFont()
-            .LogToTrace();
+            .LogToTrace()
+            .UseReactiveUI();
 }

src/AStar.Dev.File.App/ViewModels/DeletePendingViewModel.cs

@@ -1,34 +1,35 @@
 using AStar.Dev.File.App.Data;
 using AStar.Dev.File.App.Services;
-using CommunityToolkit.Mvvm.ComponentModel;
-using CommunityToolkit.Mvvm.Input;
 using Microsoft.EntityFrameworkCore;
+using ReactiveUI;
+using ReactiveUI.Fody.Helpers;
 using System;
 using System.Collections.ObjectModel;
 using System.Linq;
+using System.Reactive;
 using System.Threading.Tasks;
 
 namespace AStar.Dev.File.App.ViewModels;
 
-public partial class DeletePendingViewModel : ViewModelBase
+public class DeletePendingViewModel : ViewModelBase
 {
     private readonly IDbContextFactory<FileAppDbContext> _dbContextFactory;
     private readonly IFileDeleteService _fileDeleteService;
     private readonly IFileViewerService _fileViewerService;
 
-    [ObservableProperty]
-    private bool _isDeleting;
-
-    [ObservableProperty]
-    private int _pendingDeleteCount;
-
-    [ObservableProperty]
-    private string _statusMessage = string.Empty;
+    [Reactive] public bool IsDeleting { get; set; }
+    [Reactive] public int PendingDeleteCount { get; set; }
+    [Reactive] public string StatusMessage { get; set; } = string.Empty;
 
     public ObservableCollection<ScannedFileDisplayItem> PendingDeleteFiles { get; } = [];
 
     public event Action<ScannedFileDisplayItem>? ViewFileRequested;
 
+    public ReactiveCommand<ScannedFileDisplayItem?, Unit> TogglePendingDeleteCommand { get; }
+    public ReactiveCommand<Unit, Unit> DeleteAllCommand { get; }
+    public ReactiveCommand<Unit, Unit> ClearMarkingsCommand { get; }
+    public ReactiveCommand<ScannedFileDisplayItem?, Unit> ViewFileCommand { get; }
+
     public DeletePendingViewModel(
         IDbContextFactory<FileAppDbContext> dbContextFactory,
         IFileDeleteService fileDeleteService,
@@ -39,10 +40,18 @@ public DeletePendingViewModel(
         _fileViewerService = fileViewerService;
         _fileViewerService.FileViewRequested += item => ViewFileRequested?.Invoke(item);
 
+        TogglePendingDeleteCommand = ReactiveCommand.CreateFromTask<ScannedFileDisplayItem?>(TogglePendingDelete);
+
+        var canDeleteAll = this.WhenAnyValue(x => x.IsDeleting, x => x.PendingDeleteCount,
+            (deleting, count) => !deleting && count > 0);
+        DeleteAllCommand = ReactiveCommand.CreateFromTask(DeleteAll, canDeleteAll);
+
+        ClearMarkingsCommand = ReactiveCommand.CreateFromTask(ClearMarkings);
+        ViewFileCommand = ReactiveCommand.CreateFromTask<ScannedFileDisplayItem?>(ViewFile);
+
         _ = LoadPendingFilesAsync();
     }
 
-    [RelayCommand]
     private async Task TogglePendingDelete(ScannedFileDisplayItem? item)
     {
         if (item is null) return;
@@ -58,7 +67,6 @@ private async Task TogglePendingDelete(ScannedFileDisplayItem? item)
         await LoadPendingFilesAsync();
     }
 
-    [RelayCommand(CanExecute = nameof(CanDeleteAll))]
     private async Task DeleteAll()
     {
         if (PendingDeleteFiles.Count == 0)
@@ -95,9 +103,6 @@ private async Task DeleteAll()
         }
     }
 
-    private bool CanDeleteAll() => !IsDeleting && PendingDeleteFiles.Count > 0;
-
-    [RelayCommand]
     private async Task ClearMarkings()
     {
         if (PendingDeleteFiles.Count == 0)
@@ -116,7 +121,6 @@ private async Task ClearMarkings()
         await LoadPendingFilesAsync();
     }
 
-    [RelayCommand]
     private async Task ViewFile(ScannedFileDisplayItem? item)
     {
         await _fileViewerService.ViewFileAsync(item);
@@ -137,7 +141,6 @@ private async Task LoadPendingFilesAsync()
             files.ForEach(file => PendingDeleteFiles.Add(new ScannedFileDisplayItem(file)));
 
             PendingDeleteCount = PendingDeleteFiles.Count;
-            DeleteAllCommand.NotifyCanExecuteChanged();
         }
         catch (Exception ex)
         {