public async Task <OperationResult <TaxCalculationResponse> > CalculateTax(TaxCalculationRequest request)
{
OperationResult <TaxCalculationResponse> validatorResult = _validationRuleEngine.Validate(request);
if (validatorResult.HasErrors)
{
return(validatorResult);
}
var calculationTypeMapping = await _calculationMappingRepository.GetByPostalCodeAsync(request.PostalCode).ConfigureAwait(false);
var taxCalculator = _taxCalculatorFactory.GetCalculator(calculationTypeMapping.CalculationType);
var taxYear = await _taxYearRepository.GetTaxYearAsync(_clock.GetCurrentDateTime()).ConfigureAwait(false);
var taxAmountResult = await taxCalculator.CalculateTaxAsync(taxYear, request.AnnualIncome).ConfigureAwait(false);
if (taxAmountResult.HasErrors)
{
return(taxAmountResult.MapErrors <TaxCalculationResponse>());
}
var response = new TaxCalculationResponse
{
TaxYear = taxYear.ToString(),
CalculationType = calculationTypeMapping.CalculationType,
TaxAmount = taxAmountResult.Response
};
await SaveCalculation(request, response, taxYear);
return(new OperationResult <TaxCalculationResponse>(response));
}
protected override OperationResult Handle(AddCoinCommand command)
{
var result = new OperationResult();
try
{
ICoinFactory coinFactory = CoinFactoryProducer.GetFactory(command.Currency);
ICoin coin = coinFactory.GetCoin(command.Amount);
OperationResult jarValidatorResult = _coinJarValidatorRulesEngine.Validate(coin);
if (jarValidatorResult.HasErrors)
{
result.AddErrorMessages(jarValidatorResult.GetErrorMessages());
return(result);
}
_db.AddCoin(coin);
return(result);
}
catch (ApplicationException e)
{
result.AddErrorMessage(e.Key, e.Message);
}
return(result);
}