/// <summary>
/// Creates a Payout cashset from a set of cashitems
/// </summary>
/// <param name="valueToPay">The desired value of the returned cashset</param>
/// <param name="drawerContent">The cashset from which to return a subset for payout</param>
/// <returns></returns>
public ICashSet Payout(decimal valueToPay, ICashSet drawerContent)
{
ICashSet payOut = CashController.SmallestSetForValue(valueToPay, drawerContent);
if (payOut != null)
{
//Return the payout set
return(payOut);
}
else
{
//Round the payout set to the closest 5 cents and try again
decimal roundedValue = Math.Round(valueToPay * 20) / 20;
return(CashController.SmallestSetForValue(roundedValue, drawerContent));
}
}
public void DetermineChange(object s, ProvideChangeEventArgs pce)
{
ICashSet transactionSet = new CashSet(TillDrawer.Contents);
CashSet givenSet = (CashSet)CashController.SmallestSetForValue(pce.CashGiven);
transactionSet.Add(givenSet);
decimal valueToPayout = pce.CashGiven - pce.TransactionValue;
ICashSet setToReturn = Payout(valueToPayout, transactionSet);
if (setToReturn != null)
{
RaisePrintReturnCash(setToReturn);
RaisePaymentPossible(givenSet, (CashSet)setToReturn);
}
else
{
RaiseNoChangeFound();
}
}