private async Task <ResolvedRatesResult> CalculateInterestRates(PriceCalculationParameters calculationParameters, VariationDefinitionParams definitionParams)
{
var bundleVariationGroup = await configurationService
.GetEffective("offer/price-calculation/bundle-variation-group", "PRODUCT-BUNDLING-DISCOUNT");
bundleVariationGroup = bundleVariationGroup.ToLower();
var result = new ResolvedRatesResult
{
ResultChanged = false
};
if (calculationParameters.InterestRates != null)
{
result.Rates = new List <InterestRateCondition>();
var arrRates = calculationParameters.InterestRates;
decimal napr = -1;
foreach (InterestRateCondition rate in arrRates)
{
var oldCalculatedRate = rate.CalculatedRate;
if (
// check if rate is defined at all
rate == null ||
// check if rate is effective on request date
rate.EffectiveDate > calculationParameters.RequestDate ||
// check if rate is defined for main currency
(rate.Currencies != null && !rate.Currencies.Contains(calculationParameters.Currency)) ||
// check if rate is defined for scheduled periods (if scheduled periods exist at all)
(string.IsNullOrEmpty(rate.Periods) &&
calculationParameters.ScheduledPeriods != null && calculationParameters.ScheduledPeriods.Count() > 0)
||
(!string.IsNullOrEmpty(rate.Periods) &&
(calculationParameters.ScheduledPeriods == null || calculationParameters.ScheduledPeriods.Count() == 0))
||
(!string.IsNullOrEmpty(rate.Periods) &&
calculationParameters.ScheduledPeriods != null && calculationParameters.ScheduledPeriods.Count() > 0 &&
rate.Periods.Replace(" ", "").Split(",").Intersect(calculationParameters.ScheduledPeriods.Select(p => p.PeriodType)).Count() == 0))
{
continue;
}
if (calculationParameters.Amount.HasValue)
{
definitionParams.AmountInRuleCurrency = GetAmountInRuleCurrency(rate, calculationParameters.Currency,
calculationParameters.Amount.Value);
}
var newRate = rate.Copy();
newRate = ResolveRateBenefits(calculationParameters, newRate);
newRate = ResolveRateOptions(calculationParameters, newRate);
if (!string.IsNullOrEmpty(newRate.VariationsDefinitionDMN))
{
var newVars = await priceCalculationService.ResolveInterestRateVariationDmn(newRate.VariationsDefinitionDMN, definitionParams, newRate.VariationsDefinition);
if (newVars != null && newVars.Count > 0)
{
if (newRate.Variations != null || newRate.Variations.Count > 0)
{
newRate.Variations = newRate.Variations.Where(nv => nv.Origin != PriceVariationOrigins.Product).ToList();
}
else
{
newRate.Variations = new List <InterestRateVariation>();
}
newRate.Variations.AddRange(newVars);
}
}
if (!string.IsNullOrEmpty(newRate.UpperLimitVariationsDefinitionDMN))
{
var newVars = await priceCalculationService.ResolveInterestRateVariationDmn(newRate.UpperLimitVariationsDefinitionDMN, definitionParams, newRate.UpperLimitVariationsDefinition);
if (newVars != null && newVars.Count > 0)
{
if (newRate.UpperLimitVariations != null || newRate.UpperLimitVariations.Count > 0)
{
newRate.UpperLimitVariations = newRate.UpperLimitVariations.Where(nv => nv.Origin != PriceVariationOrigins.Product).ToList();
}
else
{
newRate.UpperLimitVariations = new List <InterestRateVariation>();
}
newRate.UpperLimitVariations.AddRange(newVars);
}
}
if (!string.IsNullOrEmpty(newRate.LowerLimitVariationsDefinitionDMN))
{
var newVars = await priceCalculationService.ResolveInterestRateVariationDmn(newRate.LowerLimitVariationsDefinitionDMN, definitionParams, newRate.LowerLimitVariationsDefinition);
if (newVars != null && newVars.Count > 0)
{
if (newRate.LowerLimitVariations != null || newRate.LowerLimitVariations.Count > 0)
{
newRate.LowerLimitVariations = newRate.LowerLimitVariations.Where(nv => nv.Origin != PriceVariationOrigins.Product).ToList();
}
else
{
newRate.LowerLimitVariations = new List <InterestRateVariation>();
}
newRate.LowerLimitVariations.AddRange(newVars);
}
}
var newPrice = GetPrice(newRate, calculationParameters.RequestDate ?? DateTime.Today);
if (newPrice != oldCalculatedRate)
{
result.ResultChanged = true;
}
var rateWoBundle = GetInterestRateWithoutBundle(newRate, bundleVariationGroup, calculationParameters.RequestDate);
if (rateWoBundle > 0)
{
newRate.RateWithoutBundle = rateWoBundle;
}
if (newRate.Variations.Any(v => v.Origin == PriceVariationOrigins.SalesDiscount))
{
newRate.Variations.Reverse();
}
result.Rates.Add(newRate);
if (newRate.Kind == InterestRateKinds.RegularInterest && napr < 0)
{
napr = newRate.CalculatedRate;
result.Napr = napr;
}
}
}
return(result);
}