public async Task <PaymentChangeStatusResponse> UpdatePaymentStatusAsync(PaymentChangeStatusRequest request)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
var payment = _paymentRepository.GetAll().FirstOrDefault(p => p.Id == request.Id);
if (payment == null)
{
throw new InvalidOperationException(nameof(payment));
}
var validationResult = _paymentValidator.Validate(payment, request);
if (validationResult.Result != PaymentChangeStatusResult.Ok)
{
return(validationResult);
}
payment.Status = request.Status;
payment.StatusDescription = Enum.GetName(typeof(PaymentStatus), request.Status);
payment.Reason = request.Reason;
_paymentRepository.Update(payment);
await _unitOfWork.CommitAsync();
return(validationResult);
}
public PaymentChangeStatusResponse Validate(Payment payment, PaymentChangeStatusRequest paymentChangeStatusRequest)
{
if(payment.Status == PaymentStatus.Approved
|| payment.Status == PaymentStatus.Rejected)
return new PaymentChangeStatusResponse()
{
Result = PaymentChangeStatusResult.Error,
Message = "Can't change status for payment which has 'Approved' or 'Rejected' status"
};
switch (paymentChangeStatusRequest.Status)
{
case PaymentStatus.Approved when payment.Currency == "EUR" && payment.Amount > 4000:
return new PaymentChangeStatusResponse()
{
Result = PaymentChangeStatusResult.ValidationError,
Message = "Can't approve payment with amount more than 4000 for EUR"
};
case PaymentStatus.Rejected when paymentChangeStatusRequest.Reason != "This is suspicious":
return new PaymentChangeStatusResponse()
{
Result = PaymentChangeStatusResult.ValidationError,
Message = "Reason should be 'This is suspicious' for Reject"
};
}
return new PaymentChangeStatusResponse()
{
Result = PaymentChangeStatusResult.Ok,
Message = string.Empty
};
}
