public void RemoveFromPending(Customer c, PurchasedItem pi, Transaction t)
{
foreach (Customer cust in customers)
{
if (cust == c)
{
c.RemoveBookFromHistory(t, pi);
}
}
}
public void AddToCart(Book b)
{
if (b.Stock <= 0)
{
throw new BookShopException("This book is out of stock.");
}
foreach (PurchasedItem pi in currentCart.Cart)
{
if (pi.Book.ISBN == b.ISBN)
{
pi.Quantity++;
currentCart.Price += b.Price;
b.Stock--;
return;
}
}
PurchasedItem p = new PurchasedItem(b, 1);
currentCart.Cart.Add(p);
currentCart.Price += p.Book.Price;
b.Stock--;
}
public void RemoveBookFromHistory(Transaction t, PurchasedItem pi)
{
foreach (Transaction trans in transactionHistory)
{
if (trans == t)
{
foreach (PurchasedItem p in t.Cart)
{
if (pi == p)
{
pi.Quantity--;
t.Price -= pi.Book.Price;
pi.Book.Stock++;
if (pi.Quantity <= 0)
{
t.Cart.Remove(pi);
}
break;
}
}
}
}
}
