osu/osu.Game/Database/ExternalEditOperation.cs

66 lines
2.1 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System.IO;
using System.Threading.Tasks;
using osu.Game.Overlays.Notifications;
namespace osu.Game.Database
{
/// <summary>
/// Contains information related to an active external edit operation.
/// </summary>
public class ExternalEditOperation<TModel> where TModel : class, IHasGuidPrimaryKey
{
/// <summary>
/// The temporary path at which the model has been exported to for editing.
/// </summary>
public readonly string MountedPath;
/// <summary>
/// Whether the model is still mounted at <see cref="MountedPath"/>.
/// </summary>
public bool IsMounted { get; private set; }
private readonly IModelImporter<TModel> importer;
private readonly TModel original;
public ExternalEditOperation(IModelImporter<TModel> importer, TModel original, string path)
{
this.importer = importer;
this.original = original;
MountedPath = path;
IsMounted = true;
}
/// <summary>
/// Finish the external edit operation.
/// </summary>
/// <remarks>
/// This will trigger an asynchronous reimport of the model.
/// Subsequent calls will be a no-op.
/// </remarks>
/// <returns>A task which will eventuate in the newly imported model with changes applied.</returns>
public async Task<Live<TModel>?> Finish()
{
if (!Directory.Exists(MountedPath) || !IsMounted)
return null;
IsMounted = false;
Live<TModel>? imported = await importer.ImportAsUpdate(new ProgressNotification(), new ImportTask(MountedPath), original)
.ConfigureAwait(false);
try
{
Directory.Delete(MountedPath, true);
}
catch { }
return imported;
}
}
}