曲情報を取得するとき、null で来た場合にもイベント発火する

[Asteriskx]

• 原因 SpotifyService.cs > Start() > .DistinctUntilChanged() で重複削除した後、null が来た場合にフィルタリングできていなかった

• 改修前

  Observable.Interval(TimeSpan.FromSeconds(1))
  　.Where(_ => _CurrentlyPlaying is not null && _CurrentlyPlaying.IsPlaying)
  　.Select(async _ => _CurrentlyPlaying = await _spotifyClient?.Player?.GetCurrentlyPlaying(new()))
  　.Select(_ => CurrentTrackInfo.GetCurrentTrackInfo(_CurrentlyPlaying))
  　.DistinctUntilChanged()
  　.Subscribe(track => CurrentTrackChanged?.Invoke(track));

• 改修前ログ

  2023/04/22 22:05:02:503  【Debug】    [SpotifyService] - Polling Start....
  2023/04/22 22:05:02:505  【Info】 Called OnSpotifyCurrentlyPlayingChanged
  2023/04/22 22:05:02:981  【Debug】    [SagiriUI] - Finished roading Form....
  2023/04/22 22:05:04:552  【Info】 Called OnSpotifyCurrentlyPlayingChanged
  2023/04/22 22:05:04:553  【Info】 OnSpotifyCurrentlyPlayingChanged -> 🎵 カラカラ - 🎙 結束バンド - 💿 カラカラ
  2023/04/22 22:05:36:521  【Debug】    CurrentTrackInfo is null...
  2023/04/22 22:05:38:515  【Info】 Called OnSpotifyCurrentlyPlayingChanged
  2023/04/22 22:05:38:516  【Info】 OnSpotifyCurrentlyPlayingChanged -> 🎵 星座になれたら - 🎙 結束バンド - 💿 結束バンド
  2023/04/22 22:06:00:515  【Debug】    CurrentTrackInfo is null...
  2023/04/22 22:06:02:519  【Info】 Called OnSpotifyCurrentlyPlayingChanged
  2023/04/22 22:06:02:520  【Info】 OnSpotifyCurrentlyPlayingChanged -> 🎵 フラッシュバッカー - 🎙 結束バンド - 💿 結束バンド
  2023/04/22 22:06:26:520  【Debug】    CurrentTrackInfo is null...
  2023/04/22 22:06:28:527  【Info】 Called OnSpotifyCurrentlyPlayingChanged
  2023/04/22 22:06:28:529  【Info】 OnSpotifyCurrentlyPlayingChanged -> 🎵 青春コンプレックス - 🎙 結束バンド - 💿 青春コンプレックス

• 改修後

  Observable.Interval(TimeSpan.FromSeconds(1))
  　.Where(_ => _CurrentlyPlaying is not null && _CurrentlyPlaying.IsPlaying)
  　.Select(async _ => _CurrentlyPlaying = await _spotifyClient?.Player?.GetCurrentlyPlaying(new()))
  　.Select(_ => CurrentTrackInfo.GetCurrentTrackInfo(_CurrentlyPlaying))
  　.DistinctUntilChanged()
  　.Where(track => track is not null) < 重複削除後 の null 判定追加
  　.Subscribe(track => CurrentTrackChanged?.Invoke(track));

• 改修後ログ

  2023/04/22 22:26:16:486  【Debug】    [SpotifyService] - Polling Start....
  2023/04/22 22:26:16:488  【Info】 Called OnSpotifyCurrentlyPlayingChanged
  2023/04/22 22:26:16:904  【Debug】    [SagiriUI] - Finished roading Form....
  2023/04/22 22:26:17:530  【Info】 Called OnSpotifyCurrentlyPlayingChanged
  2023/04/22 22:26:17:530  【Info】 OnSpotifyCurrentlyPlayingChanged -> 🎵 夜に駆ける - 🎙 YOASOBI - 💿 THE BOOK
  2023/04/22 22:26:25:493  【Info】 Called OnSpotifyCurrentlyPlayingChanged
  2023/04/22 22:26:25:494  【Info】 OnSpotifyCurrentlyPlayingChanged -> 🎵 怪物 - 🎙 YOASOBI - 💿 THE BOOK 2
  2023/04/22 22:26:31:503  【Info】 Called OnSpotifyCurrentlyPlayingChanged
  2023/04/22 22:26:31:504  【Info】 OnSpotifyCurrentlyPlayingChanged -> 🎵 アイドル - 🎙 YOASOBI - 💿 アイドル
  2023/04/22 22:26:46:495  【Info】 Called OnSpotifyCurrentlyPlayingChanged
  2023/04/22 22:26:46:496  【Info】 OnSpotifyCurrentlyPlayingChanged -> 🎵 青春コンプレックス - 🎙 結束バンド - 💿 結束バンド

[Asteriskx]

動作確認 OK なので、fix commit > push する

[Asteriskx]

Fix 564500d6c76e762547beeba73c77417976ebe5aa