using Harmonia.Core.Data;

namespace Harmonia.Core.Playlists;

public class PlaylistRepository : JsonFileRepository<Playlist>, IPlaylistRepository
{
    protected override string DirectoryName => Path.Combine("Playlists");

    //public PlaylistRepository()
    //{
    //    List<Playlist> playlists = Get();

    //    foreach (Playlist playlist in playlists)
    //    {
    //        playlist.PlaylistUpdated += OnPlaylistUpdated;
    //    }

    //    if (playlists.Count == 0)
    //        AddPlaylist();
    //}

    //private void OnPlaylistUpdated(object? sender, PlaylistUpdatedEventArgs e)
    //{
    //    if (sender is not Playlist playlist)
    //        return;

    //    Save(playlist);
    //}

    public Playlist? GetPlaylist(PlaylistSong playlistSong)
    {
        return Get().FirstOrDefault(playlist => playlist.Songs.Contains(playlistSong));
    }

    protected override string GetNewFileName()
    {
        for (int i = 0; i < 1000; i++)
        {
            string shortFileName = $"Playlist{i.ToString().PadLeft(3, '0')}.{Extension}";
            string filePath = Path.Combine(DirectoryName, shortFileName);

            if (File.Exists(filePath) == false)
                return shortFileName;
        }

        throw new Exception("Unable to determine new fileName");
    }

    //public event EventHandler<PlaylistAddedEventArgs>? PlaylistAdded;
    //public event EventHandler<PlaylistRemovedEventArgs>? PlaylistRemoved;

    //public void AddPlaylist()
    //{
    //    Playlist playlist = new()
    //    {
    //        Name = "New Playlist"
    //    };

    //    playlist.PlaylistUpdated += OnPlaylistUpdated;

    //    Save(playlist);
    //    PlaylistAdded?.Invoke(this, new(playlist));
    //}

    //public void RemovePlaylist(Playlist playlist)
    //{
    //    playlist.PlaylistUpdated -= OnPlaylistUpdated;

    //    Delete(playlist);
    //    PlaylistRemoved?.Invoke(this, new(playlist));
    //}
}