private VariationDefinitionParams GetVariationDefinitionParams(PriceCalculationParameters parameters)
{
var defaultParamsString = configurationService.GetEffective("offer/price-calculation/default-parameters").Result;
var defaultParams = (VariationDefinitionParams)CaseUtil.ConvertFromJsonToObject(defaultParamsString, typeof(VariationDefinitionParams));
var defParams = new VariationDefinitionParams
{
Channel = parameters.Channel ?? defaultParams.Channel,
Amount = parameters.Amount,
Currency = parameters.Currency
};
defParams.CustomerSegment = parameters.CustomerSegment ?? defaultParams.CustomerSegment;
defParams.RiskScore = parameters.RiskScore ?? defaultParams.RiskScore;
defParams.PartOfBundle = parameters.PartOfBundle ?? defaultParams.PartOfBundle;
defParams.CollateralModel = parameters.CollateralModel ?? defaultParams.CollateralModel;
defParams.HasCampaignInculded = parameters.Campaign != null;
defParams.DebtToIncome = parameters.DebtToIncome ?? defaultParams.DebtToIncome;
defParams.CustomerValue = parameters.CustomerValue ?? defaultParams.CustomerValue;
defParams.CreditRating = parameters.CreditRating ?? defaultParams.CreditRating;
var bundledComponentns = parameters.AdditionalProperties ?? defaultParams.AdditionalProperties;
defParams.AdditionalProperties = new Dictionary <string, JToken>();
var jsonData = JsonConvert.SerializeObject(bundledComponentns);
if (jsonData.Equals("{}"))
{
Console.WriteLine(
new System.Diagnostics.StackTrace().ToString()
);
}
foreach (var item in bundledComponentns)
{
defParams.AdditionalProperties.Add("bundledComponent_" + item.Key, item.Value);
}
try
{
defParams.Term = Utility.GetMonthsFromPeriod(parameters.Term);
}
catch (Exception e)
{
Console.WriteLine(e);
defParams.Term = 0;
}
return(defParams);
}
public async Task <dynamic> GetGenericParamsForDmn(VariationDefinitionParams definitionParams, string variationConfigurationUrl = "")
{
try
{
string checkConfig = await configurationService.GetEffective(variationConfigurationUrl);
dynamic responseForDmn = null;
if (!string.IsNullOrEmpty(checkConfig))
{
List <KeyValuePair <string, StringValues> > query = _httpContextAccessor.HttpContext.Request.Query.ToList();
var body = _httpContextAccessor.HttpContext.Request.Body;
dynamic originalBody;
var newBody = _httpContextAccessor.HttpContext.Request.Body;
newBody.Seek(0, System.IO.SeekOrigin.Begin);
using (var streamReader = new StreamReader(newBody, Encoding.UTF8, true, 1024, true))
{
string bodyRead = streamReader.ReadToEnd();
originalBody = JObject.Parse(bodyRead);
}
_httpContextAccessor.HttpContext.Request.Body.Position = 0;
Dictionary <string, string> dict = query.ToDictionary(x => x.Key.ToString(), x => x.Value.ToString());
using (var scope = _serviceProvider.CreateScope())
{
var _dmnRequestExtender = scope.ServiceProvider.GetRequiredService <DmnRequestExtender>();
responseForDmn = await _dmnRequestExtender.DmnRequestExtenderResponse(variationConfigurationUrl, dict, originalBody);
}
var defParamse = JObject.FromObject(definitionParams);
foreach (var rp in defParamse)
{
responseForDmn.Add(rp.Key.ToString(), rp.Value);
}
}
return(responseForDmn);
}
catch (Exception ex)
{
_logger.LogError(ex.Message, "Get generic params for dmn variations error");
return(null);
}
}
public Task <string> GetEffective(string key, string defaultValue = null)
{
string res;
switch (key)
{
case "offer/currency-conversion-method":
res = "Buy to middle";
break;
case "offer/price-calculation/default-parameters":
var defaultParameters = new VariationDefinitionParams
{
CollateralModel = "co-debtor",
CustomerSegment = "professional"
};
res = JsonConvert.SerializeObject(defaultParameters);
break;
case "offer/price-calculation/bundle-variation-group":
res = "product-bundling-discount";
break;
default:
if (defaultValue != null)
{
res = defaultValue;
break;
}
else
{
throw new NotImplementedException();
}
}
return(Task.FromResult(res));
}
private async Task <ResolvedFeesResult> CalculateFees(PriceCalculationParameters calculationParameters, VariationDefinitionParams definitionParams)
{
// TODO Include all fee parameters (limits and percentage) in DMN and in calculation
var result = new ResolvedFeesResult
{
ResultChanged = false
};
if (calculationParameters.Fees != null)
{
var arrFees = calculationParameters.Fees;
result.Fees = new List <FeeCondition>();
foreach (FeeCondition fee in arrFees)
{
if (fee == null || fee.EffectiveDate > DateTime.Today ||
(fee.Currencies != null && !fee.Currencies.Contains(calculationParameters.Currency)))
{
continue;
}
var newFee = fee.Copy();
newFee = ResolveFeeBenefits(calculationParameters, newFee);
newFee = ResolveFeeOptions(calculationParameters, newFee);
if (!string.IsNullOrEmpty(newFee.VariationsDefinitionDMN))
{
var newVars = await priceCalculationService.ResolveFeeVariationDmn(newFee.VariationsDefinitionDMN, definitionParams, newFee.VariationsDefinition);;
if (newVars != null && newVars.Count > 0)
{
if (newFee.Variations != null || newFee.Variations.Count > 0)
{
newFee.Variations = newFee.Variations.Where(nv => nv.Origin != PriceVariationOrigins.Product).ToList();
}
else
{
newFee.Variations = new List <FeeVariation>();
}
newFee.Variations.AddRange(newVars);
}
}
var calculatedFixedAmount = newFee.CalculatedFixedAmount;
var calculatedLowerLimit = newFee.CalculatedLowerLimit;
var calculatedUpperLimit = newFee.CalculatedUpperLimit;
var calculatedPercentage = newFee.CalculatedPercentage;
var calculatedFee = SolveFeeCondition(newFee);
if (calculatedFee.CalculatedPercentage != calculatedPercentage || calculatedFee.CalculatedFixedAmount != calculatedFixedAmount ||
calculatedFee.CalculatedLowerLimit != calculatedLowerLimit || calculatedFee.CalculatedUpperLimit != calculatedUpperLimit)
{
result.ResultChanged = true;
}
result.Fees.Add(calculatedFee);
}
}
return(result);
}
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);
}
public Task <List <InterestRateVariation> > ResolveInterestRateVariationDmn(string dmnContent, VariationDefinitionParams definitionParams, string variationDefinition = "")
{
var list = new List <InterestRateVariation>();
switch (dmnContent)
{
default:
break;
}
return(Task.FromResult(list));
}
public Task <List <FeeVariation> > ResolveFeeVariationDmn(string dmnContent, VariationDefinitionParams definitionParams, string variationDefinition = "")
{
throw new NotImplementedException();
}
public async Task <List <InterestRateVariation> > ResolveInterestRateVariationDmn(string dmnContent, VariationDefinitionParams definitionParams, string variationDefinition = "")
{
var responseForDmn = await GetGenericParamsForDmn(definitionParams, variationDefinition.Replace(".dmn", "-configuration"));
var decisionRequest = new DecisionRequest
{
Data = responseForDmn ?? definitionParams,
RuleDefinition = dmnContent
};
var resolvedDmn = await ResolveVariationDmn(decisionRequest);
var variations = resolvedDmn.ToInterestRateVariations();
if (variations != null)
{
foreach (InterestRateVariation interestRateVariation in variations)
{
interestRateVariation.Origin = PriceVariationOrigins.Product;
}
}
return(variations);
}
//Za prosledjen fee, napravi feeVariation koji u odnosuna definition ubaci tu kalkulaciju
public Task <List <FeeVariation> > ResolveFeeVariationDmn(string dmnContent, VariationDefinitionParams definitionParams)
{
var list = new List <FeeVariation>();
switch (dmnContent)
{
case ("product/price-variations/fee-in-range-upper.dmn"):
list.Add(CreateFeeVariation((decimal)0.89, 179));
break;
case ("product/price-variations/fee-in-range-lower.dmn"):
list.Add(CreateFeeVariation((decimal) - 0.08, -179));
break;
case ("product/price-variations/fee-under-range.dmn"):
list.Add(CreateFeeVariation((decimal) - 0.1, -181));
break;
case ("product/price-variations/fee-over-range.dmn"):
list.Add(CreateFeeVariation(1, 181));
break;
case ("product/price-variations/multiple-fee-var-in-range-upper.dmn"):
list.Add(CreateFeeVariation((decimal)0.49, 100));
list.Add(CreateFeeVariation((decimal)0.40, 79));
break;
case ("product/price-variations/multiple-fee-var-in-range-lower.dmn"):
list.Add(CreateFeeVariation((decimal) - 0.03, -100));
list.Add(CreateFeeVariation((decimal) - 0.05, -79));
break;
case ("product/price-variations/multiple-fee-var-under-range.dmn"):
list.Add(CreateFeeVariation((decimal) - 0.06, -100));
list.Add(CreateFeeVariation((decimal) - 0.04, -81));
break;
case ("product/price-variations/multiple-fee-var-over-range.dmn"):
list.Add(CreateFeeVariation((decimal)0.4, 200));
list.Add(CreateFeeVariation((decimal)0.6, 200));
break;
//iterative_cases
case ("product/price-variations/iterative-fee-in-range-upper.dmn"):
if (feeCounter > 0)
{
list.Add(CreateFeeVariation((decimal)0.88, 178));
break;
}
list.Add(CreateFeeVariation((decimal)0.89, 179));
break;
case ("product/price-variations/iterative-fee-in-range-lower.dmn"):
if (feeCounter > 0)
{
list.Add(CreateFeeVariation((decimal) - 0.07, -178));
break;
}
list.Add(CreateFeeVariation((decimal) - 0.08, -179));
break;
case ("product/price-variations/iterative-fee-under-range.dmn"):
if (feeCounter > 0)
{
list.Add(CreateFeeVariation((decimal) - 0.09, -180));
break;
}
list.Add(CreateFeeVariation((decimal) - 0.1, -181));
break;
case ("product/price-variations/iterative-fee-over-range.dmn"):
if (feeCounter > 0)
{
list.Add(CreateFeeVariation((decimal)1.01, 182));
break;
}
list.Add(CreateFeeVariation(1, 181));
break;
case ("product/price-variations/iterative-multiple-fee-var-in-range-upper.dmn"):
if (feeCounter > 0)
{
list.Add(CreateFeeVariation((decimal)0.48, 100));
list.Add(CreateFeeVariation((decimal)0.40, 78));
break;
}
list.Add(CreateFeeVariation((decimal)0.49, 100));
list.Add(CreateFeeVariation((decimal)0.40, 79));
break;
case ("product/price-variations/iterative-multiple-fee-var-in-range-lower.dmn"):
if (feeCounter > 0)
{
list.Add(CreateFeeVariation((decimal) - 0.03, -100));
list.Add(CreateFeeVariation((decimal) - 0.04, -78));
break;
}
list.Add(CreateFeeVariation((decimal) - 0.03, -100));
list.Add(CreateFeeVariation((decimal) - 0.05, -79));
break;
case ("product/price-variations/iterative-multiple-fee-var-under-range.dmn"):
if (feeCounter > 0)
{
list.Add(CreateFeeVariation((decimal) - 0.07, -101));
list.Add(CreateFeeVariation((decimal) - 0.04, -81));
break;
}
list.Add(CreateFeeVariation((decimal) - 0.06, -100));
list.Add(CreateFeeVariation((decimal) - 0.04, -81));
break;
case ("product/price-variations/iterative-multiple-fee-var-over-range.dmn"):
if (feeCounter > 0)
{
list.Add(CreateFeeVariation((decimal)0.5, 200));
list.Add(CreateFeeVariation((decimal)0.6, 201));
break;
}
list.Add(CreateFeeVariation((decimal)0.4, 200));
list.Add(CreateFeeVariation((decimal)0.6, 200));
break;
}
feeCounter = feeCounter + 1;
return(Task.FromResult(list));
}
public Task <List <InterestRateVariation> > ResolveInterestRateVariationDmn(string dmnContent, VariationDefinitionParams definitionParams)
{
var list = new List <InterestRateVariation>();
{
switch (dmnContent)
{
case ("product/price-variations/int-rate-remove.dmn"):
list.Add(CreateIntRateVariation(-1));
break;
case ("product/price-variations/int-rate-remove2.dmn"):
list.Add(CreateIntRateVariation(-2));
break;
case ("product/price-variations/int-rate-add.dmn"):
list.Add(CreateIntRateVariation(1));
break;
case ("product/price-variations/int-rate-add2.dmn"):
list.Add(CreateIntRateVariation(2));
break;
case ("product/price-variations/int-rate-add-two-variations.dmn"):
list.Add(CreateIntRateVariation(1));
list.Add(CreateIntRateVariation(2));
break;
//iterative
case ("product/price-variations/iterative-int-rate-remove.dmn"):
if (intrateCounter > 0)
{
list.Add(CreateIntRateVariation((decimal) - 0.99));
break;
}
list.Add(CreateIntRateVariation(-1));
break;
case ("product/price-variations/iterative-int-rate-remove2.dmn"):
if (intrateCounter > 0)
{
list.Add(CreateIntRateVariation((decimal) - 1.99));
break;
}
list.Add(CreateIntRateVariation(-2));
break;
case ("product/price-variations/iterative-int-rate-add.dmn"):
if (intrateCounter > 0)
{
list.Add(CreateIntRateVariation((decimal)0.99));
break;
}
list.Add(CreateIntRateVariation(1));
break;
case ("product/price-variations/iterative-int-rate-add2.dmn"):
if (intrateCounter > 0)
{
list.Add(CreateIntRateVariation(2));
break;
}
list.Add(CreateIntRateVariation(2));
break;
case ("product/price-variations/iterative-int-rate-add-two-variations.dmn"):
if (intrateCounter > 0)
{
list.Add(CreateIntRateVariation(1));
list.Add(CreateIntRateVariation(2));
break;
}
list.Add(CreateIntRateVariation(1));
list.Add(CreateIntRateVariation(2));
break;
}
intrateCounter = intrateCounter + 1;
return(Task.FromResult(list));
}
}