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osu-lazer/osu.Game/Beatmaps/BeatmapOnlineChangeIngest.cs

51 lines
1.7 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.Linq;
using osu.Framework.Graphics;
using osu.Game.Database;
using osu.Game.Online.Metadata;
namespace osu.Game.Beatmaps
{
/// <summary>
/// Ingests any changes that happen externally to the client, reprocessing as required.
/// </summary>
public partial class BeatmapOnlineChangeIngest : Component
{
private readonly BeatmapUpdater beatmapUpdater;
private readonly RealmAccess realm;
private readonly MetadataClient metadataClient;
public BeatmapOnlineChangeIngest(BeatmapUpdater beatmapUpdater, RealmAccess realm, MetadataClient metadataClient)
{
this.beatmapUpdater = beatmapUpdater;
this.realm = realm;
this.metadataClient = metadataClient;
metadataClient.ChangedBeatmapSetsArrived += changesDetected;
}
private void changesDetected(int[] beatmapSetIds)
{
// May want to batch incoming updates further if the background realm operations ever becomes a concern.
realm.Run(r =>
{
foreach (int id in beatmapSetIds)
{
var matchingSet = r.All<BeatmapSetInfo>().FirstOrDefault(s => s.OnlineID == id);
if (matchingSet != null)
beatmapUpdater.Queue(matchingSet.ToLive(realm), MetadataLookupScope.OnlineFirst);
}
});
}
protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
metadataClient.ChangedBeatmapSetsArrived -= changesDetected;
}
}
}