public RefinancingCalcResults Calculate(RefinancingCalcParams p)
{
IsParamsValid(p);
RefinancingCalcResults res = new RefinancingCalcResults();
res.CurrRate = p.CurrentCreditRate.Value;
res.NewRate = p.NewCreditRate.Value;
res.CurrPeriod = p.CurrentCreditPeriod.Value;
res.NewPeriod = p.CurrentCreditPeriod.Value - p.CurrentCreditMadeInstallments.Value;
decimal principalInstallments = p.CurrentCreditAmount.Value - GetPrincipalInstalments(p.CurrentCreditAmount.Value, p.CurrentCreditPeriod.Value, p.CurrentCreditMadeInstallments.Value, p.CurrentCreditRate.Value);
res.CurrPreTermFee = (p.CurrentCreditAmount.Value - principalInstallments) * p.CurrentCreditPreTermFee.Value / 100;
res.CurrMonthlyInstallment = PMT(p.CurrentCreditRate.Value, p.CurrentCreditPeriod.Value, p.CurrentCreditAmount.Value);
int newCreditPeriod = (p.CurrentCreditPeriod.Value - p.CurrentCreditMadeInstallments.Value);
res.CurrTotalPaid = Math.Round(PMT(p.CurrentCreditRate.Value, p.CurrentCreditPeriod.Value, p.CurrentCreditAmount.Value) * newCreditPeriod, 2);
res.NewMonthlyInstallment = PMT(p.NewCreditRate.Value, newCreditPeriod, p.CurrentCreditAmount.Value - principalInstallments);
decimal newCreditFees = getFeeAmount(p.CurrentCreditAmount.Value, p.NewCreditInitialFeesPercent, true) + p.NewCreditInitialFeesCurrency.Value;
decimal newCreditToBePaid = res.NewMonthlyInstallment * newCreditPeriod;
res.NewTotalPaid = newCreditToBePaid + newCreditFees + res.CurrPreTermFee;
res.CurrPreTermFee = Math.Round(res.CurrPreTermFee, 2);
res.NewTotalPaid = Math.Round(res.NewTotalPaid, 2);
res.NewMonthlyInstallment = Math.Round(res.NewMonthlyInstallment, 2);
res.CurrMonthlyInstallment = Math.Round(res.CurrMonthlyInstallment, 2);
return(res);
}
public ActionResult RefinancingCalculator(RefinancingCalcParamsVM model)
{
if (!model.IsModelValid(ModelState))
{
return(PartialView("_InvalidRefinancingParamsPartial", model));
}
var parameters = GetParamsFromModel(model);
RefinancingCalcResults refinancingResult = this.calculatorService.CalculateRefinancing(parameters);
RefinancingCalcResultsVM refinancingViewModelResult = GetResultsForModel(refinancingResult);
return(PartialView("_RefinancingResultsPartial", refinancingViewModelResult));
}
private RefinancingCalcResultsVM GetResultsForModel(RefinancingCalcResults res)
{
RefinancingCalcResultsVM mRes = new RefinancingCalcResultsVM();
mRes.CurrMonthlyInstallment = res.CurrMonthlyInstallment;
mRes.CurrPeriod = res.CurrPeriod;
mRes.CurrPreTermFee = res.CurrPreTermFee;
mRes.CurrRate = res.CurrRate;
mRes.CurrTotalPaid = res.CurrTotalPaid;
mRes.NewMonthlyInstallment = res.NewMonthlyInstallment;
mRes.NewPeriod = res.NewPeriod;
mRes.NewRate = res.NewRate;
mRes.NewTotalPaid = res.NewTotalPaid;
return(mRes);
}
