reduce method

@override Future<CoreState> reduce()

The reduce method is the action reducer. It may read the action state, the store state, and then return a new state (or null if no state change is necessary).

It may be synchronous (returning AppState or null) or async (returning Future<AppState> or Future<null>).

The StoreConnectors may rebuild only if the reduce method returns a state which is both not null and different from the previous one (comparing by identical, not equals).

Implementation

@override
Future<CoreState> reduce() async {
  final MiscState? miscState = state.miscState;

  final bool hasAcceptedTerms = miscState!.acceptedTerms!;

  if (phoneNumber.isEmpty) {
    ScaffoldMessenger.of(context)
        .showSnackBar(snackbar(content: signupPhoneNo));
    return state;
  }

  dispatch(BatchUpdateMiscStateAction(phoneNumber: phoneNumber));

  if (!hasAcceptedTerms) {
    ScaffoldMessenger.of(context)
        .showSnackBar(snackbar(content: allowPhoneComm));
    return state;
  }

  final String endpoint =
      AppWrapperBase.of(context)!.customContext?.verifyPhoneEndpoint ??
          EndpointContext.verifyPhoneEndpoint(
              AppWrapperBase.of(context)!.appContexts);

  final IGraphQlClient client = AppWrapperBase.of(context)!.graphQLClient;

  final Response response = await SimpleCall.callRestAPI(
    endpoint: endpoint,
    method: AppRequestTypes.POST.name,
    graphClient: client,
    variables: <String, String>{'phonenumber': phoneNumber},
    raw: true,
  ) as Response;

  final ProcessedResponse processedResponse =
      processResponse(response, context);

  if (processedResponse.ok) {
    final CanRegisterOutput canRegister = CanRegisterOutput(
        canRegister: true,
        response: OTPResponse.fromJson(
            json.decode(response.body) as Map<String, dynamic>));

    if (canRegister.canRegister) {
      dispatch(
        BatchUpdateMiscStateAction(
          phoneNumber: phoneNumber,
          otpCode: canRegister.response!.otp,
          title: verifyPhone,
          message: verifyDesc(
              formatPhoneNumber(phoneNumber: phoneNumber, countryCode: '')),
        ),
      );
    }
    return state;
  } else {
    showAlertSnackBar(context: context, message: processedResponse.message);
    return state;
  }
}