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

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// 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.
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using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using osu.Framework.Audio;
using osu.Framework.Audio.Track;
using osu.Framework.Extensions;
using osu.Framework.IO.Stores;
using osu.Framework.Platform;
using osu.Game.Beatmaps.Formats;
using osu.Game.Database;
using osu.Game.Extensions;
using osu.Game.IO.Archives;
using osu.Game.Models;
using osu.Game.Online.API;
using osu.Game.Online.API.Requests.Responses;
using osu.Game.Overlays.Notifications;
using osu.Game.Rulesets;
using osu.Game.Skinning;
using osu.Game.Utils;
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using Realms;
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namespace osu.Game.Beatmaps
{
/// <summary>
/// Handles general operations related to global beatmap management.
/// </summary>
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public class BeatmapManager : ModelManager<BeatmapSetInfo>, IModelImporter<BeatmapSetInfo>, IWorkingBeatmapCache
{
public ITrackStore BeatmapTrackStore { get; }
private readonly BeatmapImporter beatmapImporter;
private readonly WorkingBeatmapCache workingBeatmapCache;
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private readonly BeatmapExporter beatmapExporter;
private readonly LegacyBeatmapExporter legacyBeatmapExporter;
public ProcessBeatmapDelegate? ProcessBeatmap { private get; set; }
public override bool PauseImports
{
get => base.PauseImports;
set
{
base.PauseImports = value;
beatmapImporter.PauseImports = value;
}
}
public BeatmapManager(Storage storage, RealmAccess realm, IAPIProvider? api, AudioManager audioManager, IResourceStore<byte[]> gameResources, GameHost? host = null,
WorkingBeatmap? defaultBeatmap = null, BeatmapDifficultyCache? difficultyCache = null, bool performOnlineLookups = false)
: base(storage, realm)
{
if (performOnlineLookups)
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{
if (api == null)
throw new ArgumentNullException(nameof(api), "API must be provided if online lookups are required.");
if (difficultyCache == null)
throw new ArgumentNullException(nameof(difficultyCache), "Difficulty cache must be provided if online lookups are required.");
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}
var userResources = new RealmFileStore(realm, storage).Store;
BeatmapTrackStore = audioManager.GetTrackStore(userResources);
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beatmapImporter = CreateBeatmapImporter(storage, realm);
beatmapImporter.ProcessBeatmap = (beatmapSet, scope) => ProcessBeatmap?.Invoke(beatmapSet, scope);
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beatmapImporter.PostNotification = obj => PostNotification?.Invoke(obj);
workingBeatmapCache = CreateWorkingBeatmapCache(audioManager, gameResources, userResources, defaultBeatmap, host);
beatmapExporter = new BeatmapExporter(storage)
{
PostNotification = obj => PostNotification?.Invoke(obj)
};
legacyBeatmapExporter = new LegacyBeatmapExporter(storage)
{
PostNotification = obj => PostNotification?.Invoke(obj)
};
}
protected virtual WorkingBeatmapCache CreateWorkingBeatmapCache(AudioManager audioManager, IResourceStore<byte[]> resources, IResourceStore<byte[]> storage, WorkingBeatmap? defaultBeatmap,
GameHost? host)
{
return new WorkingBeatmapCache(BeatmapTrackStore, audioManager, resources, storage, defaultBeatmap, host);
}
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protected virtual BeatmapImporter CreateBeatmapImporter(Storage storage, RealmAccess realm) => new BeatmapImporter(storage, realm);
/// <summary>
/// Create a new beatmap set, backed by a <see cref="BeatmapSetInfo"/> model,
/// with a single difficulty which is backed by a <see cref="BeatmapInfo"/> model
/// and represented by the returned usable <see cref="WorkingBeatmap"/>.
/// </summary>
public WorkingBeatmap CreateNew(RulesetInfo ruleset, APIUser user)
{
var metadata = new BeatmapMetadata
{
Author = new RealmUser
{
OnlineID = user.OnlineID,
Username = user.Username,
}
};
var beatmapSet = new BeatmapSetInfo
{
DateAdded = DateTimeOffset.UtcNow,
Beatmaps =
{
new BeatmapInfo(ruleset, new BeatmapDifficulty(), metadata)
}
};
foreach (BeatmapInfo b in beatmapSet.Beatmaps)
b.BeatmapSet = beatmapSet;
var imported = beatmapImporter.ImportModel(beatmapSet);
if (imported == null)
throw new InvalidOperationException("Failed to import new beatmap");
return imported.PerformRead(s => GetWorkingBeatmap(s.Beatmaps.First()));
}
/// <summary>
/// Add a new difficulty to the provided <paramref name="targetBeatmapSet"/> based on the provided <paramref name="referenceWorkingBeatmap"/>.
/// The new difficulty will be backed by a <see cref="BeatmapInfo"/> model
/// and represented by the returned <see cref="WorkingBeatmap"/>.
/// </summary>
/// <remarks>
/// Contrary to <see cref="CopyExistingDifficulty"/>, this method does not preserve hitobjects and beatmap-level settings from <paramref name="referenceWorkingBeatmap"/>.
/// The created beatmap will have zero hitobjects and will have default settings (including difficulty settings), but will preserve metadata and existing timing points.
/// </remarks>
/// <param name="targetBeatmapSet">The <see cref="BeatmapSetInfo"/> to add the new difficulty to.</param>
/// <param name="referenceWorkingBeatmap">The <see cref="WorkingBeatmap"/> to use as a baseline reference when creating the new difficulty.</param>
/// <param name="rulesetInfo">The ruleset with which the new difficulty should be created.</param>
public virtual WorkingBeatmap CreateNewDifficulty(BeatmapSetInfo targetBeatmapSet, WorkingBeatmap referenceWorkingBeatmap, RulesetInfo rulesetInfo)
{
var newBeatmapInfo = new BeatmapInfo(rulesetInfo, new BeatmapDifficulty(), referenceWorkingBeatmap.Metadata.DeepClone())
{
DifficultyName = NamingUtils.GetNextBestName(targetBeatmapSet.Beatmaps.Select(b => b.DifficultyName), "New Difficulty")
};
var newBeatmap = new Beatmap { BeatmapInfo = newBeatmapInfo };
foreach (var timingPoint in referenceWorkingBeatmap.Beatmap.ControlPointInfo.TimingPoints)
newBeatmap.ControlPointInfo.Add(timingPoint.Time, timingPoint.DeepClone());
return addDifficultyToSet(targetBeatmapSet, newBeatmap, referenceWorkingBeatmap.Skin);
}
/// <summary>
/// Add a copy of the provided <paramref name="referenceWorkingBeatmap"/> to the provided <paramref name="targetBeatmapSet"/>.
/// The new difficulty will be backed by a <see cref="BeatmapInfo"/> model
/// and represented by the returned <see cref="WorkingBeatmap"/>.
/// </summary>
/// <remarks>
/// Contrary to <see cref="CreateNewDifficulty"/>, this method creates a nearly-exact copy of <paramref name="referenceWorkingBeatmap"/>
/// (with the exception of a few key properties that cannot be copied under any circumstance, like difficulty name, beatmap hash, or online status).
/// </remarks>
/// <param name="targetBeatmapSet">The <see cref="BeatmapSetInfo"/> to add the copy to.</param>
/// <param name="referenceWorkingBeatmap">The <see cref="WorkingBeatmap"/> to be copied.</param>
public virtual WorkingBeatmap CopyExistingDifficulty(BeatmapSetInfo targetBeatmapSet, WorkingBeatmap referenceWorkingBeatmap)
{
var newBeatmap = referenceWorkingBeatmap.GetPlayableBeatmap(referenceWorkingBeatmap.BeatmapInfo.Ruleset).Clone();
BeatmapInfo newBeatmapInfo;
newBeatmap.BeatmapInfo = newBeatmapInfo = referenceWorkingBeatmap.BeatmapInfo.Clone();
// assign a new ID to the clone.
newBeatmapInfo.ID = Guid.NewGuid();
// add "(copy)" suffix to difficulty name, and additionally ensure that it doesn't conflict with any other potentially pre-existing copies.
newBeatmapInfo.DifficultyName = NamingUtils.GetNextBestName(
targetBeatmapSet.Beatmaps.Select(b => b.DifficultyName),
$"{newBeatmapInfo.DifficultyName} (copy)");
// clear the hash, as that's what is used to match .osu files with their corresponding realm beatmaps.
newBeatmapInfo.Hash = string.Empty;
// clear online properties.
newBeatmapInfo.ResetOnlineInfo();
return addDifficultyToSet(targetBeatmapSet, newBeatmap, referenceWorkingBeatmap.Skin);
}
private WorkingBeatmap addDifficultyToSet(BeatmapSetInfo targetBeatmapSet, IBeatmap newBeatmap, ISkin beatmapSkin)
{
// populate circular beatmap set info <-> beatmap info references manually.
// several places like `Save()` or `GetWorkingBeatmap()`
// rely on them being freely traversable in both directions for correct operation.
targetBeatmapSet.Beatmaps.Add(newBeatmap.BeatmapInfo);
newBeatmap.BeatmapInfo.BeatmapSet = targetBeatmapSet;
save(newBeatmap.BeatmapInfo, newBeatmap, beatmapSkin, transferCollections: false);
workingBeatmapCache.Invalidate(targetBeatmapSet);
return GetWorkingBeatmap(newBeatmap.BeatmapInfo);
}
/// <summary>
/// Delete a beatmap difficulty.
/// </summary>
/// <param name="beatmapInfo">The beatmap difficulty to hide.</param>
public void Hide(BeatmapInfo beatmapInfo)
{
Realm.Run(r =>
{
using (var transaction = r.BeginWrite())
{
if (!beatmapInfo.IsManaged)
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beatmapInfo = r.Find<BeatmapInfo>(beatmapInfo.ID)!;
beatmapInfo.Hidden = true;
transaction.Commit();
}
});
}
/// <summary>
/// Restore a beatmap difficulty.
/// </summary>
/// <param name="beatmapInfo">The beatmap difficulty to restore.</param>
public void Restore(BeatmapInfo beatmapInfo)
{
Realm.Run(r =>
{
using (var transaction = r.BeginWrite())
{
if (!beatmapInfo.IsManaged)
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beatmapInfo = r.Find<BeatmapInfo>(beatmapInfo.ID)!;
beatmapInfo.Hidden = false;
transaction.Commit();
}
});
}
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public void RestoreAll()
{
Realm.Run(r =>
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{
using (var transaction = r.BeginWrite())
{
foreach (var beatmap in r.All<BeatmapInfo>().Where(b => b.Hidden))
beatmap.Hidden = false;
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transaction.Commit();
}
});
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}
/// <summary>
/// Returns a list of all usable <see cref="BeatmapSetInfo"/>s.
/// </summary>
/// <returns>A list of available <see cref="BeatmapSetInfo"/>.</returns>
public List<BeatmapSetInfo> GetAllUsableBeatmapSets()
{
return Realm.Run(r =>
{
r.Refresh();
return r.All<BeatmapSetInfo>().Where(b => !b.DeletePending).Detach();
});
}
/// <summary>
/// Perform a lookup query on available <see cref="BeatmapSetInfo"/>s.
/// </summary>
/// <param name="query">The query.</param>
/// <returns>The first result for the provided query, or null if no results were found.</returns>
public Live<BeatmapSetInfo>? QueryBeatmapSet(Expression<Func<BeatmapSetInfo, bool>> query)
{
return Realm.Run(r => r.All<BeatmapSetInfo>().FirstOrDefault(query)?.ToLive(Realm));
}
/// <summary>
/// Perform a lookup query on available <see cref="BeatmapInfo"/>s.
/// </summary>
/// <param name="query">The query.</param>
/// <returns>The first result for the provided query, or null if no results were found.</returns>
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public BeatmapInfo? QueryBeatmap(Expression<Func<BeatmapInfo, bool>> query) => Realm.Run(r => r.All<BeatmapInfo>().Filter($"{nameof(BeatmapInfo.BeatmapSet)}.{nameof(BeatmapSetInfo.DeletePending)} == false").FirstOrDefault(query)?.Detach());
/// <summary>
/// A default representation of a WorkingBeatmap to use when no beatmap is available.
/// </summary>
public IWorkingBeatmap DefaultBeatmap => workingBeatmapCache.DefaultBeatmap;
/// <summary>
/// Saves an existing <see cref="IBeatmap"/> file against a given <see cref="BeatmapInfo"/>.
/// </summary>
/// <remarks>
/// This method will also update any user beatmap collection hash references to the new post-saved hash.
/// </remarks>
/// <param name="beatmapInfo">The <see cref="BeatmapInfo"/> to save the content against. The file referenced by <see cref="BeatmapInfo.Path"/> will be replaced.</param>
/// <param name="beatmapContent">The <see cref="IBeatmap"/> content to write.</param>
/// <param name="beatmapSkin">The beatmap <see cref="ISkin"/> content to write, null if to be omitted.</param>
public virtual void Save(BeatmapInfo beatmapInfo, IBeatmap beatmapContent, ISkin? beatmapSkin = null) =>
save(beatmapInfo, beatmapContent, beatmapSkin, transferCollections: true);
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public void DeleteAllVideos()
{
Realm.Write(r =>
{
var items = r.All<BeatmapSetInfo>().Where(s => !s.DeletePending && !s.Protected);
DeleteVideos(items.ToList());
});
}
public void Delete(Expression<Func<BeatmapSetInfo, bool>>? filter = null, bool silent = false)
{
Realm.Run(r =>
{
var items = r.All<BeatmapSetInfo>().Where(s => !s.DeletePending && !s.Protected);
if (filter != null)
items = items.Where(filter);
Delete(items.ToList(), silent);
});
}
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/// <summary>
/// Delete a beatmap difficulty immediately.
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/// </summary>
/// <remarks>
/// There's no undoing this operation, as we don't have a soft-deletion flag on <see cref="BeatmapInfo"/>.
/// This may be a future consideration if there's a user requirement for undeleting support.
/// </remarks>
public void DeleteDifficultyImmediately(BeatmapInfo beatmapInfo)
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{
Realm.Write(r =>
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{
if (!beatmapInfo.IsManaged)
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beatmapInfo = r.Find<BeatmapInfo>(beatmapInfo.ID)!;
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Debug.Assert(beatmapInfo.BeatmapSet != null);
Debug.Assert(beatmapInfo.File != null);
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var setInfo = beatmapInfo.BeatmapSet;
DeleteFile(setInfo, beatmapInfo.File);
setInfo.Beatmaps.Remove(beatmapInfo);
r.Remove(beatmapInfo.Metadata);
r.Remove(beatmapInfo);
updateHashAndMarkDirty(setInfo);
workingBeatmapCache.Invalidate(setInfo);
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});
}
/// <summary>
/// Delete videos from a list of beatmaps.
/// This will post notifications tracking progress.
/// </summary>
public void DeleteVideos(List<BeatmapSetInfo> items, bool silent = false)
{
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const string no_videos_message = "No videos found to delete!";
if (items.Count == 0)
{
if (!silent)
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PostNotification?.Invoke(new ProgressCompletionNotification { Text = no_videos_message });
return;
}
var notification = new ProgressNotification
{
Progress = 0,
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Text = $"Preparing to delete all {HumanisedModelName} videos...",
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CompletionText = no_videos_message,
State = ProgressNotificationState.Active,
};
if (!silent)
PostNotification?.Invoke(notification);
int i = 0;
int deleted = 0;
foreach (var b in items)
{
if (notification.State == ProgressNotificationState.Cancelled)
// user requested abort
return;
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var video = b.Files.FirstOrDefault(f => OsuGameBase.VIDEO_EXTENSIONS.Any(ex => f.Filename.EndsWith(ex, StringComparison.OrdinalIgnoreCase)));
if (video != null)
{
DeleteFile(b, video);
deleted++;
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notification.CompletionText = $"Deleted {deleted} {HumanisedModelName} video(s)!";
}
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notification.Text = $"Deleting videos from {HumanisedModelName}s ({deleted} deleted)";
notification.Progress = (float)++i / items.Count;
}
notification.State = ProgressNotificationState.Completed;
}
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public void UndeleteAll()
{
Realm.Run(r => Undelete(r.All<BeatmapSetInfo>().Where(s => s.DeletePending).ToList()));
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}
public Task<Live<BeatmapSetInfo>?> ImportAsUpdate(ProgressNotification notification, ImportTask importTask, BeatmapSetInfo original) =>
beatmapImporter.ImportAsUpdate(notification, importTask, original);
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public Task Export(BeatmapSetInfo beatmap) => beatmapExporter.ExportAsync(beatmap.ToLive(Realm));
public Task ExportLegacy(BeatmapSetInfo beatmap) => legacyBeatmapExporter.ExportAsync(beatmap.ToLive(Realm));
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private void updateHashAndMarkDirty(BeatmapSetInfo setInfo)
{
setInfo.Hash = beatmapImporter.ComputeHash(setInfo);
setInfo.Status = BeatmapOnlineStatus.LocallyModified;
}
private void save(BeatmapInfo beatmapInfo, IBeatmap beatmapContent, ISkin? beatmapSkin, bool transferCollections)
{
var setInfo = beatmapInfo.BeatmapSet;
Debug.Assert(setInfo != null);
// Difficulty settings must be copied first due to the clone in `Beatmap<>.BeatmapInfo_Set`.
// This should hopefully be temporary, assuming said clone is eventually removed.
// Warning: The directionality here is important. Changes have to be copied *from* beatmapContent (which comes from editor and is being saved)
// *to* the beatmapInfo (which is a database model and needs to receive values without the taiko slider velocity multiplier for correct operation).
// CopyTo() will undo such adjustments, while CopyFrom() will not.
beatmapContent.Difficulty.CopyTo(beatmapInfo.Difficulty);
// All changes to metadata are made in the provided beatmapInfo, so this should be copied to the `IBeatmap` before encoding.
beatmapContent.BeatmapInfo = beatmapInfo;
// Since now this is a locally-modified beatmap, we also set all relevant flags to indicate this.
// Importantly, the `ResetOnlineInfo()` call must happen before encoding, as online ID is encoded into the `.osu` file,
// which influences the beatmap checksums.
beatmapInfo.LastLocalUpdate = DateTimeOffset.Now;
beatmapInfo.Status = BeatmapOnlineStatus.LocallyModified;
beatmapInfo.ResetOnlineInfo();
Realm.Write(r =>
{
using var stream = new MemoryStream();
using (var sw = new StreamWriter(stream, Encoding.UTF8, 1024, true))
new LegacyBeatmapEncoder(beatmapContent, beatmapSkin).Encode(sw);
stream.Seek(0, SeekOrigin.Begin);
// AddFile generally handles updating/replacing files, but this is a case where the filename may have also changed so let's delete for simplicity.
var existingFileInfo = beatmapInfo.Path != null ? setInfo.GetFile(beatmapInfo.Path) : null;
string targetFilename = createBeatmapFilenameFromMetadata(beatmapInfo);
// ensure that two difficulties from the set don't point at the same beatmap file.
if (setInfo.Beatmaps.Any(b => b.ID != beatmapInfo.ID && string.Equals(b.Path, targetFilename, StringComparison.OrdinalIgnoreCase)))
throw new InvalidOperationException($"{setInfo.GetDisplayString()} already has a difficulty with the name of '{beatmapInfo.DifficultyName}'.");
if (existingFileInfo != null)
DeleteFile(setInfo, existingFileInfo);
string oldMd5Hash = beatmapInfo.MD5Hash;
beatmapInfo.MD5Hash = stream.ComputeMD5Hash();
beatmapInfo.Hash = stream.ComputeSHA2Hash();
AddFile(setInfo, stream, createBeatmapFilenameFromMetadata(beatmapInfo));
updateHashAndMarkDirty(setInfo);
var liveBeatmapSet = r.Find<BeatmapSetInfo>(setInfo.ID)!;
setInfo.CopyChangesToRealm(liveBeatmapSet);
if (transferCollections)
beatmapInfo.TransferCollectionReferences(r, oldMd5Hash);
liveBeatmapSet.Beatmaps.Single(b => b.ID == beatmapInfo.ID)
.UpdateLocalScores(r);
// do not look up metadata.
// this is a locally-modified set now, so looking up metadata is busy work at best and harmful at worst.
ProcessBeatmap?.Invoke(liveBeatmapSet, MetadataLookupScope.None);
});
Debug.Assert(beatmapInfo.BeatmapSet != null);
static string createBeatmapFilenameFromMetadata(BeatmapInfo beatmapInfo)
{
var metadata = beatmapInfo.Metadata;
return $"{metadata.Artist} - {metadata.Title} ({metadata.Author.Username}) [{beatmapInfo.DifficultyName}].osu".GetValidFilename();
}
}
#region Implementation of ICanAcceptFiles
public Task Import(params string[] paths) => beatmapImporter.Import(paths);
public Task Import(ImportTask[] tasks, ImportParameters parameters = default) => beatmapImporter.Import(tasks, parameters);
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public Task<IEnumerable<Live<BeatmapSetInfo>>> Import(ProgressNotification notification, ImportTask[] tasks, ImportParameters parameters = default) =>
beatmapImporter.Import(notification, tasks, parameters);
public Task<Live<BeatmapSetInfo>?> Import(ImportTask task, ImportParameters parameters = default, CancellationToken cancellationToken = default) =>
beatmapImporter.Import(task, parameters, cancellationToken);
public Live<BeatmapSetInfo>? Import(BeatmapSetInfo item, ArchiveReader? archive = null, CancellationToken cancellationToken = default) =>
beatmapImporter.ImportModel(item, archive, default, cancellationToken);
public IEnumerable<string> HandledExtensions => beatmapImporter.HandledExtensions;
#endregion
#region Implementation of IWorkingBeatmapCache
/// <summary>
/// Retrieve a <see cref="WorkingBeatmap"/> instance for the provided <see cref="BeatmapInfo"/>
/// </summary>
/// <param name="beatmapInfo">The beatmap to lookup.</param>
/// <param name="refetch">Whether to force a refetch from the database to ensure <see cref="BeatmapInfo"/> is up-to-date.</param>
/// <returns>A <see cref="WorkingBeatmap"/> instance correlating to the provided <see cref="BeatmapInfo"/>.</returns>
public WorkingBeatmap GetWorkingBeatmap(BeatmapInfo? beatmapInfo, bool refetch = false)
{
if (beatmapInfo != null)
{
if (refetch)
workingBeatmapCache.Invalidate(beatmapInfo);
// Detached beatmapsets don't come with files as an optimisation (see `RealmObjectExtensions.beatmap_set_mapper`).
// If we seem to be missing files, now is a good time to re-fetch.
bool missingFiles = beatmapInfo.BeatmapSet?.Files.Count == 0;
if (refetch || beatmapInfo.IsManaged || missingFiles)
{
Guid id = beatmapInfo.ID;
beatmapInfo = Realm.Run(r => r.Find<BeatmapInfo>(id)?.Detach()) ?? beatmapInfo;
}
Debug.Assert(beatmapInfo.IsManaged != true);
}
return workingBeatmapCache.GetWorkingBeatmap(beatmapInfo);
}
WorkingBeatmap IWorkingBeatmapCache.GetWorkingBeatmap(BeatmapInfo beatmapInfo) => GetWorkingBeatmap(beatmapInfo);
void IWorkingBeatmapCache.Invalidate(BeatmapSetInfo beatmapSetInfo) => workingBeatmapCache.Invalidate(beatmapSetInfo);
void IWorkingBeatmapCache.Invalidate(BeatmapInfo beatmapInfo) => workingBeatmapCache.Invalidate(beatmapInfo);
public event Action<WorkingBeatmap>? OnInvalidated
{
add => workingBeatmapCache.OnInvalidated += value;
remove => workingBeatmapCache.OnInvalidated -= value;
}
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public override bool IsAvailableLocally(BeatmapSetInfo model) => Realm.Run(realm => realm.All<BeatmapSetInfo>().Any(s => s.OnlineID == model.OnlineID));
#endregion
#region Implementation of IPostImports<out BeatmapSetInfo>
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public Action<IEnumerable<Live<BeatmapSetInfo>>>? PresentImport
{
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set => beatmapImporter.PresentImport = value;
}
#endregion
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public override string HumanisedModelName => "beatmap";
}
/// <summary>
/// Delegate type for beatmap processing callbacks.
/// </summary>
/// <param name="beatmapSet">The beatmap set to be processed.</param>
/// <param name="lookupScope">The scope to use when looking up metadata.</param>
public delegate void ProcessBeatmapDelegate(BeatmapSetInfo beatmapSet, MetadataLookupScope lookupScope);
}