@freezed
abstract class NoteFormEvent with _$NoteFormEvent {
  const factory NoteFormEvent.initialized(Option<Note> initialNoteOption) =
      _Initialized;
  const factory NoteFormEvent.bodyChanged(String bodyStr) = _BodyChanged;
  const factory NoteFormEvent.colorChanged(Color color) = _ColorChanged;
  const factory NoteFormEvent.todosChanged(KtList<TodoItemPrimitive> todos) =
      _TodosChanged;
  const factory NoteFormEvent.saved() = _Saved;
}

@injectable
class AuthBloc extends Bloc<AuthEvent, AuthState> {
  final IAuthFacade _authFacade;

  AuthBloc(
    this._authFacade,
  ) : super(const AuthState.initial());

  @override
  Stream<AuthState> mapEventToState(
    AuthEvent event,
  ) async* {
    yield* event.map(
      authCheckRequested: (e) async* {
        final userOption = _authFacade.getSignedUser();
        yield userOption.fold(
          () => const AuthState.unauthenticated(),
          (_) => const AuthState.authenticated(),
        );
      },
      signedOut: (e) async* {
        await _authFacade.signOut();
        yield const AuthState.unauthenticated();
      },
    );
  }
}