public Minutes MinutesWhichCanCover(PhoneCall phoneCall, IClock clock)
{
if (Allowance.IsGreaterOrEqualTo(phoneCall.Minutes))
{
return(phoneCall.Minutes);
}
else
{
return(Allowance);
}
}
public void Record(
PhoneCall phoneCall,
PhoneCallCosting phoneCallCosting,
IClock clock)
{
var numberOfMinutesCoveredByAllowance = new Minutes();
if (_freeCallAllowance != null)
{
numberOfMinutesCoveredByAllowance =
_freeCallAllowance.MinutesWhichCanCover(phoneCall, clock);
}
var numberOfMinutesToChargeFor =
phoneCall.Minutes.Subtract(numberOfMinutesCoveredByAllowance);
var costOfCall =
phoneCallCosting.DetermineCostOfCall(
numberOfMinutesToChargeFor);
Causes(new PhoneCallCharged(this.Id, phoneCall, costOfCall,
numberOfMinutesCoveredByAllowance));
}