private static async Task <NcmTrack[]> GetTracksAsync(NcmAlbum ncmAlbum)
{
NcmTrack[] ncmTracks;
if (!_cachedNcmTrackses.TryGetValue(ncmAlbum.Id, out ncmTracks))
{
List <NcmTrack> list;
list = new List <NcmTrack>();
foreach (NcmTrack item in await CloudMusic.GetTracksAsync(ncmAlbum.Id))
{
if ((await GetLyricAsync(item.Id)).IsCollected)
{
list.Add(item);
}
}
ncmTracks = list.ToArray();
_cachedNcmTrackses[ncmAlbum.Id] = ncmTracks;
}
return(ncmTracks);
}
/// <summary>
/// 同时根据专辑信息以及歌曲信息获取网易云音乐上的歌曲
/// </summary>
/// <param name="track"></param>
/// <param name="album"></param>
/// <param name="audioPath"></param>
/// <returns></returns>
private static async Task <NcmTrack> MapToAsync(Track track, Album album, string audioPath)
{
if (track == null)
{
throw new ArgumentNullException(nameof(track));
}
if (audioPath == null)
{
throw new ArgumentNullException(nameof(audioPath));
}
string fileName;
TrackCache trackCache;
int trackId;
NcmTrack ncmTrack;
fileName = Path.GetFileName(audioPath);
trackCache = album == null?_allCaches.TrackCaches.Match(track, fileName) : _allCaches.TrackCaches.Match(track, album);
// 有专辑信息就用专辑信息，没有专辑信息就用文件名
if (trackCache != null)
{
return(new NcmTrack(track, trackCache.Id));
}
// 先尝试从缓存获取歌曲
if (The163KeyHelper.TryGetMusicId(audioPath, out trackId))
{
// 尝试从163Key获取ID
ncmTrack = new NcmTrack(track, trackId);
}
else
{
NcmAlbum ncmAlbum;
ncmAlbum = null;
if (album != null)
{
// 存在专辑信息，尝试获取网易云音乐上对应的专辑
AlbumCache albumCache;
albumCache = _allCaches.AlbumCaches.Match(album);
if (albumCache != null)
{
ncmAlbum = new NcmAlbum(album, albumCache.Id);
}
// 先尝试从缓存获取专辑
if (ncmAlbum == null)
{
ncmAlbum = await MapToAsync(album);
if (ncmAlbum != null)
{
UpdateCache(album, ncmAlbum.Id);
}
}
}
if (ncmAlbum == null)
{
// 没有对应的专辑信息，使用无专辑匹配
ncmTrack = await MapToAsync(track);
}
else
{
// 网易云音乐收录了歌曲所在专辑
NcmTrack[] ncmTracks;
ncmTracks = (await GetTracksAsync(ncmAlbum)).Where(t => ComputeSimilarity(t.Name, track.Name, false) != 0).ToArray();
// 获取网易云音乐上专辑收录的歌曲
ncmTrack = MatchByUser(ncmTracks, track);
if (ncmTrack == null)
{
// 网易云音乐上的专辑可能没收录这个歌曲，不清楚为什么，但是确实存在这个情况，比如专辑id:3094396
ncmTrack = await MapToAsync(track);
}
}
}
if (ncmTrack == null)
{
Logger.Instance.LogWarning("歌曲匹配失败！");
}
else
{
Logger.Instance.LogInfo("歌曲匹配成功！");
if (album == null)
{
UpdateCache(track, fileName, ncmTrack.Id);
}
else
{
UpdateCache(track, album, ncmTrack.Id);
}
}
return(ncmTrack);
}