Remove .Common-project

Currently of no use

app/InkForge.Desktop/Managers/WorkspaceManager.cs

@@ -0,0 +1,92 @@
+using InkForge.Data;
+using InkForge.Desktop.Data.Options;
+using InkForge.Desktop.Models;
+
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+
+using ReactiveUI;
+
+namespace InkForge.Desktop.Managers;
+
+public class WorkspaceManager(IServiceProvider serviceProvider) : ReactiveObject
+{
+	private readonly IServiceProvider _serviceProvider = serviceProvider;
+	private Workspace? _workspace;
+
+	public Workspace? Workspace
+	{
+		get => _workspace;
+		private set => this.RaiseAndSetIfChanged(ref _workspace, value);
+	}
+
+	public Task CloseWorkspace()
+	{
+		_workspace?.Dispose();
+		Workspace = null;
+		return Task.CompletedTask;
+	}
+
+	public async Task OpenWorkspace(string path, bool createFile = false)
+	{
+		await CloseWorkspace().ConfigureAwait(false);
+		if (await CreateLocalWorkspace(path, createFile).ConfigureAwait(false) is { } workspace)
+		{
+			Workspace = workspace;
+		}
+	}
+
+	private async ValueTask<Workspace?> CreateLocalWorkspace(string path, bool createFile)
+	{
+		FileInfo file = new(path);
+		if (!(createFile || file.Exists))
+		{
+			return null;
+		}
+
+		file.Directory!.Create();
+		IServiceScope? scope = null;
+		IWorkspaceAccessor workspaceAccessor;
+		try
+		{
+			scope = _serviceProvider.CreateScope();
+			var serviceProvider = scope.ServiceProvider;
+			var options = serviceProvider.GetRequiredService<LocalWorkspaceOptions>();
+			options.DbPath = path;
+
+			workspaceAccessor = serviceProvider.GetRequiredService<IWorkspaceAccessor>();
+			workspaceAccessor.Workspace = new Workspace(scope)
+			{
+				Name = Path.GetFileNameWithoutExtension(file.Name),
+				Options = options,
+			};
+
+			var dbFactory = serviceProvider.GetRequiredService<IDbContextFactory<NoteDbContext>>();
+			await using (var dbContext = dbFactory.CreateDbContext())
+			{
+				var db = dbContext.Database;
+				await using var transaction = await db.BeginTransactionAsync().ConfigureAwait(false);
+				try
+				{
+					await db.MigrateAsync().ConfigureAwait(false);
+				}
+				catch
+				{
+					// Show Error through TopLevels.ActiveTopLevel
+					await transaction.RollbackAsync().ConfigureAwait(false);
+					return null;
+				}
+
+				await transaction.CommitAsync().ConfigureAwait(false);
+			}
+
+			scope = null;
+		}
+		finally
+		{
+			scope?.Dispose();
+		}
+
+		return workspaceAccessor.Workspace;
+	}
+}