public static PaymentSystem getInstance()
{
if (instance == null)
{
instance = new PaymentSystem();
}
return(instance);
}
public Boolean buyProducts(User session, String creditCard, String couponId)
{
LinkedList <UserCart> toDelete = new LinkedList <UserCart>();
Boolean allBought = true;
if (creditCard == null || creditCard.Equals(""))
{
return(false);
}
foreach (UserCart product in products)
{
if (couponId != null && couponId != "")
{
product.activateCoupon(couponId);
}
Sale sale = SalesManager.getInstance().getSale(product.getSaleId());
if (sale.TypeOfSale == 1 && checkValidAmount(sale, product) && checkValidDate(sale)) //regular buy
{
if (PaymentSystem.getInstance().payForProduct(creditCard, session, product))
{
ShippingSystem.getInstance().sendShippingRequest();
ProductInStore p = ProductManager.getInstance().getProductInStore(sale.ProductInStoreId);
int productId = p.getProduct().getProductId();
int storeId = p.getStore().getStoreId();
String userName = session.getUserName();
double price = product.updateAndReturnFinalPrice(couponId);
DateTime currentDate = DateTime.Today;
String date = currentDate.ToString();
int amount = product.getAmount();
int typeOfSale = sale.TypeOfSale;
BuyHistoryManager.getInstance().addBuyHistory(productId, storeId, userName, price, date, amount,
typeOfSale);
//products.Remove(product);
toDelete.AddLast(product);
SalesManager.getInstance().setNewAmountForSale(product.getSaleId(), sale.Amount - product.getAmount());
}
else
{
allBought = false;
}
}
else if (sale.TypeOfSale == 2) // auction buy
{
}
else if (sale.TypeOfSale == 3 && checkValidDate(sale)) // raffle buy
{
double offer = product.getOffer();
double remainingSum = getRemainingSumForOffers(sale.SaleId);
if (offer > remainingSum)
{
allBought = false;
}
else
{
if (RaffleSalesManager.getInstance().addRaffleSale(sale.SaleId, session.getUserName(), offer, sale.DueDate))
{
PaymentSystem.getInstance().payForProduct(creditCard, session, product);
ProductInStore p = ProductManager.getInstance().getProductInStore(sale.ProductInStoreId);
int productId = p.getProduct().getProductId();
int storeId = p.getStore().getStoreId();
String userName = session.getUserName();
DateTime currentDate = DateTime.Today;
String date = currentDate.ToString();
int amount = product.getAmount();
int typeOfSale = sale.TypeOfSale;
BuyHistoryManager.getInstance().addBuyHistory(productId, storeId, userName, offer, date, amount,
typeOfSale);
//products.Remove(product);
toDelete.AddLast(product);
}
else
{
allBought = false;
}
}
}
}
foreach (UserCart uc in toDelete)
{
products.Remove(uc);
}
return(allBought);
}