SimpleImageFormBloc constructor Null safety

SimpleImageFormBloc(
  1. String? appId,
  2. {FormAction? formAction}
)

Implementation

SimpleImageFormBloc(this.appId, {this.formAction})
    : super(SimpleImageFormUninitialized()) {
  on<InitialiseNewSimpleImageFormEvent>((event, emit) {
    SimpleImageFormLoaded loaded = SimpleImageFormLoaded(
        value: SimpleImageModel(
      documentID: "",
      appId: "",
      description: "",
    ));
    emit(loaded);
  });

  on<InitialiseSimpleImageFormEvent>((event, emit) async {
    // Need to re-retrieve the document from the repository so that I get all associated types
    SimpleImageFormLoaded loaded = SimpleImageFormLoaded(
        value: await simpleImageRepository(appId: appId)!
            .get(event.value!.documentID));
    emit(loaded);
  });
  on<InitialiseSimpleImageFormNoLoadEvent>((event, emit) async {
    SimpleImageFormLoaded loaded = SimpleImageFormLoaded(value: event.value);
    emit(loaded);
  });
  SimpleImageModel? newValue;
  on<ChangedSimpleImageDocumentID>((event, emit) async {
    if (state is SimpleImageFormInitialized) {
      final currentState = state as SimpleImageFormInitialized;
      newValue = currentState.value!.copyWith(documentID: event.value);
      if (formAction == FormAction.addAction) {
        emit(await _isDocumentIDValid(event.value, newValue!));
      } else {
        emit(SubmittableSimpleImageForm(value: newValue));
      }
    }
  });
  on<ChangedSimpleImageDescription>((event, emit) async {
    if (state is SimpleImageFormInitialized) {
      final currentState = state as SimpleImageFormInitialized;
      newValue = currentState.value!.copyWith(description: event.value);
      emit(SubmittableSimpleImageForm(value: newValue));
    }
  });
  on<ChangedSimpleImageImage>((event, emit) async {
    if (state is SimpleImageFormInitialized) {
      final currentState = state as SimpleImageFormInitialized;
      if (event.value != null) {
        newValue = currentState.value!.copyWith(
            image: await platformMediumRepository(appId: appId)!
                .get(event.value));
      }
      emit(SubmittableSimpleImageForm(value: newValue));
    }
  });
  on<ChangedSimpleImageConditions>((event, emit) async {
    if (state is SimpleImageFormInitialized) {
      final currentState = state as SimpleImageFormInitialized;
      newValue = currentState.value!.copyWith(conditions: event.value);
      emit(SubmittableSimpleImageForm(value: newValue));
    }
  });
}