public IActionResult Update([FromBody] DataContracts.Requests.Slip contract)
{
var wrappedSlip = ModelFromContract(contract);
if (wrappedSlip.HasError)
{
return(BadRequest(wrappedSlip.ErrorMessage));
}
cashRegister.AddPayments(wrappedSlip.Model);
return(Ok());
}
private ValidationResult <Slip> ModelFromContract(DataContracts.Requests.Slip contract)
{
if (contract.Id <= 0)
{
return("The contract id of a slip to be updated cannot be 0 or negative");
}
if (contract.Payments == null)
{
return("The contract payments cannot be null");
}
if (!contract.Payments.Any())
{
return("The contract payments cannot be empty");
}
if (contract.Payments.Any(p => p.Amount <= 0))
{
return("Payment amounts cannot be 0 or negative");
}
if (contract.Payments.Any(p => p.Amount % 0.01m != 0))
{
return("Payment amounts cannot have a fractional part below the cent");
}
IList <Payment> payments = contract.Payments.Select(p => new Payment(p.Id, paymentMethods.Get(p.PaymentMethodId), p.Amount)).ToList();
if (payments.Any(p => p.Method == null))
{
return("One or several payment method ids are unknown");
}
return(new Slip(contract.Id, DateTime.Now, payments));
}
