public PremiumCalculation CalculateYearlyPremium(decimal yearlyRevenue, AmountOfInsurance amountOfInsurance)
{
var yearlyRevenueInThosands = yearlyRevenue / 1000m;
var basePremium = CalculateBasePremium(yearlyRevenueInThosands);
return(new PremiumCalculation(ApplyAdjustment(basePremium, amountOfInsurance)));
}
private static decimal CalculateAdjustmentForAmountOfInsurance(AmountOfInsurance amountOfInsurance)
{
switch (amountOfInsurance)
{
case AmountOfInsurance.One:
return(1.1m);
case AmountOfInsurance.Two:
return(1.2m);
case AmountOfInsurance.Three:
return(1.3m);
case AmountOfInsurance.Four:
return(1.4m);
case AmountOfInsurance.Five:
return(1.5m);
default:
throw new ArgumentException(nameof(amountOfInsurance),
$"Unexpected enum value for AmountOfInsurance {amountOfInsurance.GetType()}");
}
}
private static decimal ApplyAdjustment(decimal basePremium, AmountOfInsurance amountOfInsurance)
{
return(basePremium * CalculateAdjustmentForAmountOfInsurance(amountOfInsurance));
}
