private void BuyItem(string username, int id)
{
User user;
Product product;
try
{
product = StregSystem.GetProductByID(id);
user = StregSystem.GetUserByUsername(username);
if (product.Active)
{
try
{
StregsystemUI.DisplayUserBuysProduct(StregSystem.BuyProduct(user, product));
}
catch (InsufficientCreditsException)
{
StregsystemUI.DisplayInsufficientCash(user, product);
}
}
}
catch (UserDoesNotExistException)
{
StregsystemUI.DisplayUserNotFound(username);
}
catch (InvalidProductIdException)
{
StregsystemUI.DisplayProductNotFound(id);
}
}
private void BuyMultipleItems(string[] userCommandArr)
{
string username = userCommandArr[0];
int amount = int.Parse(userCommandArr[1]);
int productId = int.Parse(userCommandArr[2]);
List <BuyTransaction> buyTransactions = new List <BuyTransaction>();
if (amount > 0)
{
try
{
User user = StregSystem.GetUserByUsername(username);
Product product = StregSystem.GetProductByID(productId);
if (product.Active)
{
for (int i = 0; i < amount; i++)
{
try
{
buyTransactions.Add(StregSystem.BuyProduct(user, product));
}
catch (InsufficientCreditsException)
{
StregsystemUI.DisplayInsufficientCash(user, product);
}
}
StregsystemUI.DisplayUserBuysProducts(buyTransactions);
}
}
catch (UserDoesNotExistException)
{
StregsystemUI.DisplayUserNotFound(username);
}
catch (InvalidProductIdException)
{
StregsystemUI.DisplayProductNotFound(productId);
}
}
else
{
StregsystemUI.DisplayGeneralError("You have to buy atleast one item :)");
}
}