public static Boolean Buy(string username, string productName, int quantity)
{
try {
Product p = StoreLogicData.GetProduct(productName);
Customer c = StoreLogicData.GetCustomer(username);
if (c.Buy(quantity * p.Price) && p.Buy(quantity))
{
c.AddOrder(new Order(p.Name, quantity, p.Price * quantity));
return(true);
}
return(false);
} catch (NullReferenceException) {
return(false);
}
}
public static IEnumerable <Product> GetProducts()
{
return(StoreLogicData.GetProducts().Where(p => p.Stock > 0));
}
public static double GetCustomerMoney(string username)
{
return(StoreLogicData.GetCustomer(username).Money);
}
public static IEnumerable <Order> GetOrdersByUsername(string username)
{
return(StoreLogicData.GetCustomer(username).Orders);
}
public static Boolean Register(Customer c)
{
return(StoreLogicData.AddCustomer(c));
}