43 lines
1.4 KiB
C#
43 lines
1.4 KiB
C#
using System;
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using Jellyfin.Data.Enums;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Controller.Entities.Audio;
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using MediaBrowser.Controller.Sorting;
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using MediaBrowser.Model.Querying;
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namespace Emby.Server.Implementations.Sorting
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{
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/// <summary>
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/// Allows comparing artists of albums. Only the first artist of each album is considered.
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/// </summary>
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public class AlbumArtistComparer : IBaseItemComparer
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{
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/// <summary>
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/// Gets the item type this comparer compares.
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/// </summary>
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public ItemSortBy Type => ItemSortBy.AlbumArtist;
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/// <summary>
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/// Compares the specified arguments on their primary artist.
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/// </summary>
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/// <param name="x">First item to compare.</param>
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/// <param name="y">Second item to compare.</param>
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/// <returns>Zero if equal, else negative or positive number to indicate order.</returns>
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public int Compare(BaseItem? x, BaseItem? y)
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{
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return string.Compare(GetFirstAlbumArtist(x), GetFirstAlbumArtist(y), StringComparison.OrdinalIgnoreCase);
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}
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private static string? GetFirstAlbumArtist(BaseItem? x)
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{
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if (x is IHasAlbumArtist audio
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&& audio.AlbumArtists.Count != 0)
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{
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return audio.AlbumArtists[0];
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}
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return null;
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}
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}
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}
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