public CalculatePaymentResponse CalculatePayment(CalculatePaymentRequest req)
{
var res = new CalculatePaymentResponse();
try
{
using (var container = new TransactionModelContainer())
{
var payment = new Payment("SystemService", -1,
req.CustomerName, "CARPASS", req.PaymentItems.CreatePaymentItems());
res.CustomerName = payment.CustomerName;
res.GrandTotal = payment.GrandTotal();
res.RemainingAmount = payment.RemainingAmount();
res.TotalVatAmount = payment.TotalVat();
res.TotalWithholdingTaxAmount = payment.TotalWithholdingTax();
res.TotalBeforeAdjustment = payment.TotalNoDiscount();
res.TotalAdjustment = payment.TotalDiscount();
res.PaymentItems = payment.PaymentItems.CreateCalculatePaymentItems();
res.Succeed();
}
}
catch (Exception ex)
{
res.Fail(ex);
CreateLog(ex);
}
return(res);
}
// ------------------------------------------------
public CalculatePaymentResponse CalculatePayment(CalculatePaymentRequest req)
{
var retVal = new CalculatePaymentResponse();
// --------------------------------------------------------
// plug the values from the input into the mortgage formula
var payment = (req.LoanAmount - req.DownPayment) * (Math.Pow((1 + req.InterestRate / 12), req.NumberOfPayments) * req.InterestRate) / (12 * (Math.Pow((1 + req.InterestRate / 12), req.NumberOfPayments) - 1));
// ----------------------------------------------------
// add on a monthly property tax and property insurance
payment = payment + ((req.AnnualTax + req.AnnualInsurancePmt) / 12);
// --------------------------------------------------------
// place the monthly payment calculated into the temp field
retVal.PaymentAmount = Math.Round((decimal)payment, 2);
return(retVal);
}
