public Banknote[] GetCash(CurrencyType currency, int amountOfMoney)
{
var currentResult = _nextHandler?.GetCash(currency, amountOfMoney);
if (currency != Banknote.Currency)
{
return(currentResult);
}
var sum = currentResult.Sum();
if (sum == amountOfMoney)
{
return(currentResult);
}
var residue = amountOfMoney - sum;
var outAmountOfBanknote = Math.Min(residue / Banknote.Value, AmountOfBanknote);
var result = new List <Banknote>(currentResult ?? new Banknote[0]);
for (var i = 0; i < outAmountOfBanknote; i++)
{
result.Add(Banknote);
}
return(result.ToArray());
}