public async Task <NpvChartModel> GetNpvResultAsync(NpvModel model)
{
var result = new NpvChartModel();
await Task.Run(() =>
{
if (!model.CalculationID.HasValue)
{
var calculationModel = InsertCalculation(model);
InsertCashFlows(calculationModel.CalculationID, model.CommaDelimetedCashFlows);
}
var cashFlows = model.CommaDelimetedCashFlows.Split(',').Select(Double.Parse).ToList();
cashFlows.Insert(0, model.InitialInvestment);
var discountRate = model.LowerBoundDiscountRate;
while (discountRate <= model.UpperBoundDiscountRate)
{
result.Labels.Add($"{discountRate}%");
result.Values.Add(CaculateNpv(cashFlows, discountRate));
discountRate = Math.Round(discountRate + model.DiscountRateIncrement, 2);
}
;
});
return(result);
}
public async Task <NpvChartModel> GetNpvByIDAsync(int id)
{
var result = new NpvChartModel();
await Task.Run(() =>
{
var nvpModel = GetCalculationByID(id);
var cashFlows = nvpModel.ListOfCashFlows;
cashFlows.Insert(0, nvpModel.InitialInvestment);
var discountRate = nvpModel.LowerBoundDiscountRate;
while (discountRate <= nvpModel.UpperBoundDiscountRate)
{
result.Labels.Add($"{discountRate}%");
result.Values.Add(CaculateNpv(cashFlows, discountRate));
discountRate = Math.Round(discountRate + nvpModel.DiscountRateIncrement, 2);
}
;
});
return(result);
}
