public IActionResult Parameters(int level, string type, int id)
{
ParametersVM model = new ParametersVM()
{
Level = level,
Type = type,
ID = id
};
return(View(model));
}
public Calculation SaveCalculation(ParametersVM parameters, IEnumerable <BaseSingleNPVCalculation> NPVs)
{
Calculation npvc = new Calculation
{
CalculationDate = DateTime.Now,
DiscountRateIncrement = parameters.DiscountRateIncrement,
InitialValue = parameters.InitialValue,
LowerBoundDiscountRate = parameters.LowerBoundDiscountRate,
UpperBoundDiscountRate = parameters.UpperBoundDiscountRate
};
dbContext.NPVCalculations.Add(npvc);
dbContext.SaveChanges();
SaveCashflows(parameters.Cashflows, npvc.ID);
SaveSingleNPVCalculations(NPVs, npvc.ID);
return(npvc);
}
public IEnumerable <SingleNPVCalculation> ProcessCalculation(ParametersVM parameters)
{
List <SingleNPVCalculation> npvCalculations = new List <SingleNPVCalculation>();
for (
decimal discountRate = parameters.LowerBoundDiscountRate;
discountRate <= parameters.UpperBoundDiscountRate;
discountRate += parameters.DiscountRateIncrement
)
{
decimal NPV = calculationService.CalculateNPV(parameters.Cashflows, discountRate, parameters.InitialValue);
npvCalculations.Add(new SingleNPVCalculation {
DiscountRate = discountRate, NPV = NPV
});
}
calculationService.SaveCalculation(parameters, npvCalculations);
return(npvCalculations);
}
public IHttpActionResult Calculate(ParametersVM parameters)
{
IEnumerable <SingleNPVCalculation> npvCalculations = service.ProcessCalculation(parameters);
IEnumerable <Cashflow> cashFlows = parameters.Cashflows.Select(y => new Cashflow {
Value = y
});
var x = new Calculation
{
CalculationDate = DateTime.Now,
Cashflows = cashFlows.ToArray(),
DiscountRateIncrement = parameters.DiscountRateIncrement,
InitialValue = parameters.InitialValue,
LowerBoundDiscountRate = parameters.LowerBoundDiscountRate,
UpperBoundDiscountRate = parameters.UpperBoundDiscountRate,
ResultSet = npvCalculations.ToArray()
};
return(Ok(x));
}