private int getAmountForItem(String name, int orderQuantity) {
int itemTotal = 0;
ProductPrice productPrice = priceRuleDao.findPriceFor(name);
if (productPrice == null) {
throw new ProductUndefinedException();
}
if (productPrice.getSpecialPriceQty() > 0) {
int amountAtSpecialPrice =
(orderQuantity / productPrice.getSpecialPriceQty()) * productPrice.getSpecialPrice();
int amountAtRegularPrice =
(orderQuantity % productPrice.getSpecialPriceQty()) * productPrice.getPrice();
itemTotal = amountAtSpecialPrice + amountAtRegularPrice;
} else {
itemTotal = orderQuantity * productPrice.getPrice();
}
return itemTotal;
}
/**
* @param product item/product name
* @param price item/product price
* @param specialPriceQuantity Quantity at special price applicable - if zero, then not applicable
* @param specialPrice Special price overrides the per unit price
*/
@Override
public void addPriceRule(String product, int price, int specialPriceQuantity, int specialPrice) {
priceRuleDao.addProductPrice(product, price, specialPriceQuantity, specialPrice);
}