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jellyfin/Emby.Server.Implementations/Sorting/ArtistComparer.cs

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using System;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.Sorting;
using MediaBrowser.Model.Querying;
namespace Emby.Server.Implementations.Sorting
{
/// <summary>
/// Class ArtistComparer.
/// </summary>
public class ArtistComparer : IBaseItemComparer
{
/// <inheritdoc />
public string Name => ItemSortBy.Artist;
/// <inheritdoc />
public int Compare(BaseItem x, BaseItem y)
{
return string.Compare(GetValue(x), GetValue(y), StringComparison.CurrentCultureIgnoreCase);
}
/// <summary>
/// Gets the value.
/// </summary>
/// <param name="x">The x.</param>
/// <returns>System.String.</returns>
private static string GetValue(BaseItem x)
{
if (!(x is Audio audio))
{
return string.Empty;
}
return audio.Artists.Count == 0 ? null : audio.Artists[0];
}
}
}