void HandlePurchase(string username, int productId, int cnt)
{
User user;
Product product;
try
{
user = _stregsystem.GetUserByUsername(username);
product = _stregsystem.GetProductByID(productId);
for (int i = 0; i < cnt; i++)
{
try
{
BuyTransaction buyTransaction = _stregsystem.BuyProduct(user, product);
_stregsystemUI.DisplayUserBuysProduct(buyTransaction);
}
catch (InaktivProductPurchaseExceptions)
{
_stregsystemUI.DisplayProductInactive(productId.ToString());
break;
}
catch (InsufficientCreditsException)
{
_stregsystemUI.DisplayInsufficientCash(user, product);
break;
}
}
}
catch (ProductNotFoundException ex)
{
_stregsystemUI.DisplayProductNotFound(productId.ToString());
Debug.WriteLine(ex);
}
catch (UserNotFoundException ex)
{
_stregsystemUI.DisplayUserNotFound(username);
Debug.WriteLine(ex);
}
}