public void Deposit(CoinService service)
{
foreach (var coin in _coins)
{
service.Insert(coin.Key, coin.Value);
}
_coins.Clear();
}
private int ReturnCoin(CoinService service, Coin coin, int amount)
{
int dispensedCoins = Math.Min(amount / CoinValue(coin), Stored(coin));
service.Insert(coin, dispensedCoins);
RemoveFromService(coin, dispensedCoins);
return(dispensedCoins);
}