public SaleCommission ComputeCommission(Sale sale, SalesPerson salesPerson)
{
// TODO: check for null values on extra commission
decimal commissionRate;
SaleCommissionType commissionType;
if (sale.IsDirectSaleOf(salesPerson))
{
commissionRate = salesPerson.CommissionRate.Basic;
commissionType = SaleCommissionType.Basic;
}
else
{
commissionRate = salesPerson.CommissionRate.Extra ?? 0;
commissionType = SaleCommissionType.Extra;
}
decimal commissionAmount = (decimal)commissionRate * sale.Amount;
decimal percentage = (decimal)commissionRate * 100;
return new SaleCommission(
sale.Id,
salesPerson.Id,
sale.Amount,
commissionAmount,
(decimal)commissionRate,
commissionType);
}
public bool IsDirectSaleOf(SalesPerson salesPerson)
{
return salesPerson.Id == this.SalesPersonId;
}