/// <summary>
/// Convert a legacy playlist to a v2 playlist struct
/// </summary>
/// <param name="legacy">Legacy playlist</param>
/// <param name="flags">Flags used to control conversion logic</param>
/// <returns></returns>
public static Playlist ConvertLegacyPlaylist(LegacyPlaylist legacy, ConversionFlags flags = ConversionFlags.Default)
{
bool ignoreInvalidHashes = FlagUtils.HasFlag(flags, ConversionFlags.IgnoreInvalidHashes);
bool ignoreInvalidKeys = FlagUtils.HasFlag(flags, ConversionFlags.IgnoreInvalidKeys);
bool ignoreInvalidCover = FlagUtils.HasFlag(flags, ConversionFlags.IgnoreInvalidCover);
Playlist playlist = new Playlist
{
Title = legacy.PlaylistTitle,
Author = legacy.PlaylistAuthor,
Description = legacy.PlaylistDescription,
Maps = new List <Beatmap>()
};
try
{
byte[] cover = Utils.ParseBase64Image(legacy.Image);
string mimeType = MimeType.GetMimeType(cover);
if (mimeType != MimeType.PNG && mimeType != MimeType.JPG)
{
throw new InvalidCoverException(mimeType);
}
playlist.Cover = cover;
}
catch (InvalidBase64Exception ex)
{
if (ignoreInvalidCover)
{
playlist.Cover = null;
}
else
{
throw ex;
}
}
foreach (var song in legacy.Songs)
{
Beatmap map = new Beatmap()
{
DateAdded = DateTime.Now,
};
if (song.Hash != null)
{
map.Type = BeatmapType.Hash;
string hash = song.Hash.ToLower();
bool isValid = Utils.ValidHash(hash);
if (isValid == false)
{
if (ignoreInvalidHashes)
{
continue;
}
else
{
throw new InvalidMapHashException(hash);
}
}
map.Hash = Utils.StringToByteArray(hash);
}
else if (song.Key != null)
{
map.Type = BeatmapType.Key;
string key = Utils.ParseKey(song.Key);
if (key == null)
{
if (ignoreInvalidKeys)
{
continue;
}
else
{
throw new InvalidMapKeyException(song.Key);
}
}
map.Key = Convert.ToUInt32(key, 16);
}
else if (song.LevelID != null)
{
map.Type = BeatmapType.LevelID;
map.LevelID = song.LevelID;
}
playlist.Maps.Add(map);
}
return(playlist);
}
