public async Task <ArrangementRequest> CalculateAsCalculationService(
ArrangementRequest arrangementRequest, PriceCalculationParameters priceCalculationParameters)
{
List <PricedScheduledPeriod> pricedAndScheduledPeriods = null;
if (priceCalculationParameters.ScheduledPeriods != null)
{
// var conversionMethod = await _configurationService.GetEffective("offer/fee-currency-conversion-method", "Buy to middle");
pricedAndScheduledPeriods = SchedulingPeriodsResolver.PricePeriods(arrangementRequest,
priceCalculationParameters, _offerPriceCalculation);
}
// Perform price calculation for main conditions (whole repayment period)
List <ScheduledPeriod> scheduledPeriods = new List <ScheduledPeriod>();
var hasPeriods = priceCalculationParameters.ScheduledPeriods != null && priceCalculationParameters.ScheduledPeriods.Count() > 0;
if (hasPeriods)
{
priceCalculationParameters.ScheduledPeriods.ForEach(p => scheduledPeriods.Add(p));
priceCalculationParameters.ScheduledPeriods.Clear();
}
_ = await _offerPriceCalculation.CalculatePrice(arrangementRequest, priceCalculationParameters);
if (hasPeriods)
{
priceCalculationParameters.ScheduledPeriods = scheduledPeriods;
}
var request = new CalculateInstallmentPlanRequestCS
{
Amount = (double)(arrangementRequest is FinanceServiceArrangementRequest fR ? fR.Amount : 0),
RegularInterestPercentage = (double)(arrangementRequest?.Conditions?.InterestRates?.Where(r => r.Kind == InterestRateKinds.RegularInterest && string.IsNullOrEmpty(r.Periods)).Select(r => r.CalculatedRate).FirstOrDefault() ?? 0),
// todo check
StartDate = priceCalculationParameters.RequestDate,
Currency = arrangementRequest is FinanceServiceArrangementRequest fRc?GetCurrencyCode(fRc.Currency) : "978",
RegularInterestUnitOfTime = CalculationService.Services.SimpleUnitOfTime.Y,
Term = arrangementRequest is FinanceServiceArrangementRequest fRt ? fRt.Term : "0",
Periods = pricedAndScheduledPeriods
};
request = AppendFees(request, arrangementRequest);
request = AppendPredefinedPeriods(request, arrangementRequest);
var plan = _calculator.CalculateInstallmentPlan(request);
arrangementRequest.CalculationDate = priceCalculationParameters.RequestDate;
arrangementRequest.NumberOfInstallments = (int)(plan.NumberOfInstallments ?? 0);
arrangementRequest.InstallmentPlan = AggregatesModel.ApplicationAggregate.InstallmentPlanRow.FromInstallmentPlanCSList(plan.Installments);
// TODO Think about this casts
if (arrangementRequest is FinanceServiceArrangementRequest fSR)
{
fSR.Eapr = (decimal)(plan.EffectiveInterestRate ?? 0);
if (arrangementRequest is TermLoanRequest trl)
{
trl.Annuity = (decimal)(plan.Annuity ?? 0);
}
}
return(arrangementRequest);
}
/*public static List<PricedScheduledPeriod> ScheduleAndPricePeriods(ResolveSchedulingPeriodsRequest request,
* ArrangementRequest arrangementRequest, PriceCalculationParameters priceParams, OfferPriceCalculation priceCalc,
* string conversionMethod)
* {
* var scheduledAndPricedPeriods = new List<PricedScheduledPeriod>();
* ArrangementRequest arrangementRequestTemp;
* foreach (var period in priceParams.ScheduledPeriods)
* {
* arrangementRequestTemp = Mapper.Map<ArrangementRequest, ArrangementRequest>(arrangementRequest);
* arrangementRequestTemp.CalculateOffer(priceParams, priceCalc, conversionMethod);
* scheduledAndPricedPeriods.Add(new PricedScheduledPeriod
* {
* Percentage = (double)(arrangementRequestTemp?.Conditions?.InterestRates?.Where(r => r.Kind == InterestRateKinds.RegularInterest).Select(r => r.CalculatedRate).FirstOrDefault() ?? 0),
* PeriodType = period.PeriodType,
* StartDate = period.StartDate,
* EndDate = period.EndDate,
* // TODO To be resolved from DMN maybe?
* UnitOfTime = CalculationService.Services.SimpleUnitOfTime.Y
* });
* }
* return scheduledAndPricedPeriods;
* }*/
public static List <PricedScheduledPeriod> PricePeriods(
ArrangementRequest arrangementRequest, PriceCalculationParameters priceParams,
OfferPriceCalculation priceCalc)
{
var scheduledAndPricedPeriods = new List <PricedScheduledPeriod>();
var scheduledPeriods = new List <ScheduledPeriod>();
var rates = new List <InterestRateCondition>();
if (priceParams.ScheduledPeriods != null)
{
priceParams.ScheduledPeriods.ForEach(p => scheduledPeriods.Add(p));
}
if (priceParams.InterestRates != null)
{
priceParams.InterestRates.ForEach(r => rates.Add(r));
}
foreach (var period in scheduledPeriods)
{
priceParams.ScheduledPeriods.Clear();
priceParams.ScheduledPeriods.Add(period);
_ = priceCalc.CalculatePrice(arrangementRequest, priceParams).Result;
// arrangementRequest.CalculateOffer(priceParams, priceCalc, conversionMethod);
scheduledAndPricedPeriods.Add(new PricedScheduledPeriod
{
Percentage = (double)(arrangementRequest?.Conditions?.InterestRates?.Where(r => r.Kind == InterestRateKinds.RegularInterest).Select(r => r.CalculatedRate).FirstOrDefault() ?? 0),
PeriodType = period.PeriodType,
StartDate = period.StartDate,
EndDate = period.EndDate,
// TODO To be resolved from DMN maybe?
UnitOfTime = CalculationService.Services.SimpleUnitOfTime.Y
});
}
if (scheduledPeriods != null)
{
priceParams.ScheduledPeriods = scheduledPeriods;
}
if (rates != null)
{
priceParams.InterestRates = rates;
}
return(scheduledAndPricedPeriods);
}