jellyfin-server/MediaBrowser.Controller/Lyrics/LyricInfo.cs

using System.IO;

namespace MediaBrowser.Controller.Lyrics;

/// <summary>
/// Lyric helper methods.
/// </summary>
public static class LyricInfo
{
    /// <summary>
    /// Gets matching lyric file for a requested item.
    /// </summary>
    /// <param name="lyricProvider">The lyricProvider interface to use.</param>
    /// <param name="itemPath">Path of requested item.</param>
    /// <returns>Lyric file path if passed lyric provider's supported media type is found; otherwise, null.</returns>
    public static string? GetLyricFilePath(ILyricProvider lyricProvider, string itemPath)
    {
        foreach (string lyricFileExtension in lyricProvider.SupportedMediaTypes)
        {
            var lyricFilePath = Path.ChangeExtension(itemPath, lyricFileExtension);
            if (File.Exists(lyricFilePath))
            {
                return lyricFilePath;
            }
        }

        return null;
    }
}