private void FetchLyric()
{
if (cts != null)
{
cts.Cancel();
return;
}
cts = new CancellationTokenSource();
status = "가사 받는 중...";
Lyric.Clear();
AudioChanged?.BeginInvoke(null, null, null, null);
Task.Run(async() =>
{
Lyric ret = null;
var a = LyricSource.GetLyricsAsync(AudioInfo);
foreach (var lyricTask in a)
{
cts.Token.ThrowIfCancellationRequested();
try
{
ret = await lyricTask;
break;
}
catch { }
}
ret?.Insert(0, new LyricLine());
cts.Token.ThrowIfCancellationRequested();
Lyric = ret ?? throw new LyricNotFoundException();
}, cts.Token).ContinueWith(result =>
{
cts = null;
if (result.IsCanceled)
{
FetchLyric();
}
else if (result.IsFaulted)
{
status = "가사 없음";
lyric.Clear();
}
});
}
public async Task GetLyricsAsyncTest()
{
var au = new Audio.AudioInfo {
CheckSum = "좋은 날", Beatmap = new Beatmap.BeatmapMetadata {
Artist = "아이유", Title = "좋은 날"
}
};
var a = LyricSource.GetLyricsAsync(au);
Lyric ret;
int inc = 0;
foreach (var lyricTask in a)
{
try
{
ret = await lyricTask;
break;
}
catch { }
inc++;
}
Assert.IsTrue(inc > 0);
}