Merge Common to Desktop

app/InkForge.Desktop/ViewModels/AppViewModel.cs

@@ -0,0 +1,36 @@
+using InkForge.Desktop.Controllers;
+using InkForge.Desktop.Models;
+
+using ReactiveUI;
+
+namespace InkForge.Desktop.ViewModels;
+
+public class AppViewModel : ReactiveObject
+{
+	private readonly LandingViewModel _landingViewModel;
+	private readonly WorkspaceController _workspace;
+	private object _view;
+
+	public object View
+	{
+		get => _view;
+		set => this.RaiseAndSetIfChanged(ref _view, value);
+	}
+
+	public AppViewModel(WorkspaceController workspace, LandingViewModel landingViewModel)
+	{
+		_workspace = workspace;
+		_landingViewModel = landingViewModel;
+
+		this.WhenAnyValue(v => v._workspace.Workspace).Subscribe(OnWorkspaceChanged);
+	}
+
+	private void OnWorkspaceChanged(Workspace workspace)
+	{
+		View = workspace switch
+		{
+			null => _landingViewModel,
+			{ } => new WorkspaceViewModel(workspace) // scoped?
+		};
+	}
+}

app/InkForge.Desktop/ViewModels/LandingViewModel.cs

@@ -0,0 +1,89 @@
+using System.Collections.ObjectModel;
+using System.Reactive;
+
+using Avalonia.Platform.Storage;
+
+using InkForge.Desktop.Controllers;
+using InkForge.Desktop.Services;
+
+using ReactiveUI;
+
+namespace InkForge.Desktop.ViewModels;
+
+public class LandingViewModel : ReactiveObject
+{
+	private ReadOnlyObservableCollection<RecentItemViewModel> _recentItems;
+	private readonly WorkspaceController _workspaceController;
+
+	public ReactiveCommand<Unit, Unit> CreateNew { get; }
+
+	public ReactiveCommand<Unit, Unit> OpenNew { get; }
+
+	public ReadOnlyObservableCollection<RecentItemViewModel> RecentItems => _recentItems;
+
+	public LandingViewModel(WorkspaceController workspaceController)
+	{
+		_workspaceController = workspaceController;
+		CreateNew = ReactiveCommand.CreateFromTask(OnCreateNew);
+		OpenNew = ReactiveCommand.CreateFromTask(OnOpenNew);
+	}
+
+	private async Task OnCreateNew()
+	{
+		var storageProvider = this.GetStorageProvider()!;
+
+		var documents = await storageProvider.TryGetWellKnownFolderAsync(WellKnownFolder.Documents);
+		var file = await storageProvider.SaveFilePickerAsync(new FilePickerSaveOptions()
+		{
+			DefaultExtension = ".ifdb",
+			FileTypeChoices =
+			[
+				new FilePickerFileType("InkForge Database File")
+				{
+					Patterns = [ "*.ifdb" ],
+				},
+			],
+			SuggestedStartLocation = documents,
+			Title = "Select InkForge Database Name",
+		});
+
+		if (file?.TryGetLocalPath() is not { } filePath)
+		{
+			return;
+		}
+
+		await _workspaceController.OpenWorkspace(filePath, true);
+	}
+
+	private async Task OnOpenNew()
+	{
+		var storageProvider = this.GetStorageProvider()!;
+
+		var documents = await storageProvider.TryGetWellKnownFolderAsync(WellKnownFolder.Documents);
+		var files = await storageProvider.OpenFilePickerAsync(new FilePickerOpenOptions()
+		{
+			AllowMultiple = false,
+			SuggestedStartLocation = documents,
+			FileTypeFilter =
+			[
+				new FilePickerFileType("InkForge Database File")
+				{
+					Patterns = [ "*.ifdb" ]
+				}
+			],
+			Title = "Open InkForge Database file"
+		});
+
+		if (files.Count != 1)
+		{
+			return;
+		}
+
+		if (files[0].TryGetLocalPath() is not { } filePath)
+		{
+			return;
+		}
+
+		await _workspaceController.OpenWorkspace(filePath, false);
+	}
+}

app/InkForge.Desktop/ViewModels/RecentItemViewModel.cs

@@ -0,0 +1,9 @@
+using ReactiveUI;
+
+namespace InkForge.Desktop.ViewModels;
+
+public record class RecentItemViewModel(
+	DateTimeOffset Created,
+	string Name,
+	DateTimeOffset LastUsed
+) : ReactiveRecord;

app/InkForge.Desktop/ViewModels/WorkspaceViewModel.cs

@@ -0,0 +1,15 @@
+using InkForge.Desktop.Models;
+
+using ReactiveUI;
+
+namespace InkForge.Desktop.ViewModels;
+
+public class WorkspaceViewModel : ReactiveObject
+{
+	private readonly Workspace _workspace;
+
+	public WorkspaceViewModel(Workspace workspace)
+	{
+		_workspace = workspace;
+	}
+}