Highlight active playlist. Various optimizations and fixes.

Harmonia.Core/Playlists/PlaylistDto.cs

@@ -0,0 +1,60 @@
+using Harmonia.Core.Models;
+
+namespace Harmonia.Core.Playlists;
+
+internal sealed record PlaylistDto
+{
+    public string UID { get; init; } = Guid.NewGuid().ToString();
+    public string? Name { get; init; }
+    public List<PlaylistSongDto> Songs { get; init; } = [];
+    public List<GroupOption> GroupOptions { get; init; } = [];
+    public List<SortOption> SortOptions { get; init; } = [];
+    public bool IsLocked { get; init; }
+
+    public static PlaylistDto FromPlaylist(Playlist playlist)
+    {
+        return new PlaylistDto
+        {
+            UID = playlist.UID,
+            Name = playlist.Name,
+            Songs = [.. playlist.Songs.Select(PlaylistSongDto.FromPlaylistSong)],
+            GroupOptions = [.. playlist.GroupOptions],
+            SortOptions = [.. playlist.SortOptions],
+            IsLocked = playlist.IsLocked
+        };
+    }
+
+    public Playlist ToPlaylist()
+    {
+        return Playlist.Restore(
+            UID,
+            Name,
+            Songs.Select(song => song.ToPlaylistSong()),
+            GroupOptions,
+            SortOptions,
+            IsLocked);
+    }
+}
+
+internal sealed record PlaylistSongDto
+{
+    public string UID { get; init; } = Guid.NewGuid().ToString();
+    public required Song Song { get; init; }
+
+    public static PlaylistSongDto FromPlaylistSong(PlaylistSong playlistSong)
+    {
+        return new PlaylistSongDto
+        {
+            UID = playlistSong.UID,
+            Song = playlistSong.Song
+        };
+    }
+
+    public PlaylistSong ToPlaylistSong()
+    {
+        return new PlaylistSong(Song)
+        {
+            UID = UID
+        };
+    }
+}