public bool Dispense(string itemToDispense, VmCoinValidator validator, VmCoinBank coinBank, VmFoodSlot foodSlot, VmDisplay display)
{
int currentTransactionTotal = validator.GetCurrentTransactionTotal();
if (itemToDispense == SODA_STRING && _soda.Count == 0 || itemToDispense == CHIPS_STRING && _chips.Count == 0 ||
itemToDispense == CANDY_STRING && _candy.Count == 0)
{
display.SoldOutMessage();
return(false);
}
if (itemToDispense == SODA_STRING && currentTransactionTotal < SODA_COST)
{
display.PriceMessage(SODA_COST);
return(false);
}
if (itemToDispense == CHIPS_STRING && currentTransactionTotal < CHIPS_COST)
{
display.PriceMessage(CHIPS_COST);
return(false);
}
if (itemToDispense == CANDY_STRING && currentTransactionTotal < CANDY_COST)
{
display.PriceMessage(CANDY_COST);
return(false);
}
switch (itemToDispense)
{
case SODA_STRING:
DispenseSoda(currentTransactionTotal, coinBank, foodSlot, itemToDispense, display);
display.ThankYouMessage();
validator.CompleteTransaction();
return(true);
case CHIPS_STRING:
DispenseChips(currentTransactionTotal, coinBank, foodSlot, itemToDispense, display);
display.ThankYouMessage();
validator.CompleteTransaction();
return(true);
case CANDY_STRING:
DispenseCandy(currentTransactionTotal, coinBank, foodSlot, itemToDispense, display);
display.ThankYouMessage();
validator.CompleteTransaction();
return(true);
default:
return(false);
}
}
private void DispenseSoda(int currentTransactionTotal, VmCoinBank coinBank, VmFoodSlot foodSlot, string itemToDispense, VmDisplay display)
{
if (_soda.Count == 0)
{
display.SoldOutMessage();
}
else if (currentTransactionTotal < SODA_COST)
{
display.PriceMessage(SODA_COST);
}
else
{
_soda.Remove(SODA_STRING);
coinBank.MakeChange(currentTransactionTotal - SODA_COST);
foodSlot.AcceptFood("Soda");
}
}
private void DispenseCandy(int currentTransactionTotal, VmCoinBank coinBank, VmFoodSlot foodSlot, string itemToDispense, VmDisplay display)
{
if (_candy.Count == 0)
{
display.SoldOutMessage();
}
else if (currentTransactionTotal < CANDY_COST)
{
display.PriceMessage(SODA_COST);
}
else
{
_candy.Remove(CANDY_STRING);
coinBank.MakeChange(currentTransactionTotal - CANDY_COST);
foodSlot.AcceptFood("Candy");
}
}