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using MediaBrowser.Common.Progress;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Configuration;
using MediaBrowser.Model.Entities;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Controller.Entities.Audio
{
/// <summary>
/// Class MusicArtist
/// </summary>
public class MusicArtist : Folder, IMetadataContainer, IItemByName, IHasMusicGenres, IHasDualAccess, IHasTags, IHasProductionLocations, IHasLookupInfo<ArtistInfo>
{
public bool IsAccessedByName { get; set; }
/// <summary>
/// Gets or sets the tags.
/// </summary>
/// <value>The tags.</value>
public List<string> Tags { get; set; }
public List<string> ProductionLocations { get; set; }
public override bool IsFolder
{
get
{
return !IsAccessedByName;
}
}
protected override IEnumerable<BaseItem> ActualChildren
{
get
{
if (IsAccessedByName)
{
return new List<BaseItem>();
}
return base.ActualChildren;
}
}
private readonly Task _cachedTask = Task.FromResult(true);
protected override Task ValidateChildrenInternal(IProgress<double> progress, CancellationToken cancellationToken, bool recursive, bool refreshChildMetadata, MetadataRefreshOptions refreshOptions, IDirectoryService directoryService)
{
if (IsAccessedByName)
{
// Should never get in here anyway
return _cachedTask;
}
return base.ValidateChildrenInternal(progress, cancellationToken, recursive, refreshChildMetadata, refreshOptions, directoryService);
}
public MusicArtist()
{
Tags = new List<string>();
ProductionLocations = new List<string>();
}
/// <summary>
/// Gets the user data key.
/// </summary>
/// <returns>System.String.</returns>
public override string GetUserDataKey()
{
return GetUserDataKey(this);
}
/// <summary>
/// Returns the folder containing the item.
/// If the item is a folder, it returns the folder itself
/// </summary>
/// <value>The containing folder path.</value>
public override string ContainingFolderPath
{
get
{
return Path;
}
}
/// <summary>
/// Gets a value indicating whether this instance is owned item.
/// </summary>
/// <value><c>true</c> if this instance is owned item; otherwise, <c>false</c>.</value>
public override bool IsOwnedItem
{
get
{
return false;
}
}
/// <summary>
/// Gets the user data key.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>System.String.</returns>
private static string GetUserDataKey(MusicArtist item)
{
var id = item.GetProviderId(MetadataProviders.MusicBrainzArtist);
if (!string.IsNullOrEmpty(id))
{
return "Artist-Musicbrainz-" + id;
}
return "Artist-" + item.Name;
}
protected override bool GetBlockUnratedValue(UserConfiguration config)
{
return config.BlockUnratedItems.Contains(UnratedItem.Music);
}
public async Task RefreshAllMetadata(MetadataRefreshOptions refreshOptions, IProgress<double> progress, CancellationToken cancellationToken)
{
var items = RecursiveChildren.ToList();
var songs = items.OfType<Audio>().ToList();
var others = items.Except(songs).ToList();
var totalItems = songs.Count + others.Count;
var percentages = new Dictionary<Guid, double>(totalItems);
var tasks = new List<Task>();
// Refresh songs
foreach (var item in songs)
{
if (tasks.Count >= 3)
{
await Task.WhenAll(tasks).ConfigureAwait(false);
tasks.Clear();
}
cancellationToken.ThrowIfCancellationRequested();
var innerProgress = new ActionableProgress<double>();
// Avoid implicitly captured closure
var currentChild = item;
innerProgress.RegisterAction(p =>
{
lock (percentages)
{
percentages[currentChild.Id] = p / 100;
var percent = percentages.Values.Sum();
percent /= totalItems;
percent *= 100;
progress.Report(percent);
}
});
var taskChild = item;
tasks.Add(Task.Run(async () => await RefreshItem(taskChild, refreshOptions, innerProgress, cancellationToken).ConfigureAwait(false), cancellationToken));
}
await Task.WhenAll(tasks).ConfigureAwait(false);
tasks.Clear();
// Refresh current item
await RefreshMetadata(refreshOptions, cancellationToken).ConfigureAwait(false);
// Refresh all non-songs
foreach (var item in others)
{
if (tasks.Count >= 3)
{
await Task.WhenAll(tasks).ConfigureAwait(false);
tasks.Clear();
}
cancellationToken.ThrowIfCancellationRequested();
var innerProgress = new ActionableProgress<double>();
// Avoid implicitly captured closure
var currentChild = item;
innerProgress.RegisterAction(p =>
{
lock (percentages)
{
percentages[currentChild.Id] = p / 100;
var percent = percentages.Values.Sum();
percent /= totalItems;
percent *= 100;
progress.Report(percent);
}
});
// Avoid implicitly captured closure
var taskChild = item;
tasks.Add(Task.Run(async () => await RefreshItem(taskChild, refreshOptions, innerProgress, cancellationToken).ConfigureAwait(false), cancellationToken));
}
await Task.WhenAll(tasks).ConfigureAwait(false);
progress.Report(100);
}
private async Task RefreshItem(BaseItem item, MetadataRefreshOptions refreshOptions, IProgress<double> progress, CancellationToken cancellationToken)
{
await item.RefreshMetadata(refreshOptions, cancellationToken).ConfigureAwait(false);
progress.Report(100);
}
public ArtistInfo GetLookupInfo()
{
var info = GetItemLookupInfo<ArtistInfo>();
info.SongInfos = RecursiveChildren.OfType<Audio>()
.Select(i => i.GetLookupInfo())
.ToList();
return info;
}
public IEnumerable<BaseItem> GetTaggedItems(IEnumerable<BaseItem> inputItems)
{
return inputItems.OfType<IHasArtist>().Where(i => i.HasArtist(Name)).Cast<BaseItem>();
}
}
}
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