/// <summary>
/// Initializes a new instance of the <see cref="SingleCurrencyWallet"/> class.
/// </summary>
/// <param name="regionInfo">currency region</param>
/// <exception cref="ArgumentNullException">is thrown if <paramref name="regionInfo"/> is null</exception>
public SingleCurrencyWallet(RegionInfo regionInfo)
{
if (regionInfo == null)
{
throw new ArgumentNullException("regionInfo");
}
_currency = regionInfo.ISOCurrencySymbol;
_regionInfo = regionInfo;
ChangeCalculator = new ChangeCalculator();
}
/// <summary>
/// Choose a product from the database
/// </summary>
/// <param name="products">database to choose from</param>
public static void ChooseProduct(ProductsDatabase products)
{
bool choosedProduct = false;
int prod = 0;
double productCost;
Int64 productQuantity;
int length = products.Products.Count;
do
{
Console.Clear();
ShowCredit();
Output(products.Show());
Output(chooseProduct);
try
{
prod = int.Parse(Input());
if (length >= prod)
{
choosedProduct = true;
}
else
{
choosedProduct = false;
Output(wrongNumber);
Thread.Sleep(2500);
}
}
catch (System.FormatException)
{
choosedProduct = false;
Output(wrongFormat);
Thread.Sleep(2500);
}
} while (!choosedProduct);
productQuantity = products.Products[prod - 1].Quantity;
if (productQuantity > 0)
{
productCost = products.Products[prod - 1].Price;
//check if price is lower or equal to credit
if (productCost > fullMoney)
{
Output(notEnoughMoney);
Thread.Sleep(2500);
Console.Clear();
Pay();
}
else
{
fullMoney = ChangeCalculator.CalculateChange(fullMoney, (float)productCost);
ProductsDatabase.Decrement(prod, products);
TransactionsDatabase.AddTransaction(prod);
Console.Clear();
}
}
else
{
Output(itemUnavailable);
EndTransaction();
Pause();
StartMachine();
}
}