public void AddCoin(ICoin coin)
{
if (coin.IsValidCoin())
{
switch (coin.Amount)
{
case 0.01M:
coin.Volume = 0.00845350563972975M;
break;
case 0.05M:
coin.Volume = 0.169070112794595M;
break;
case 0.10M:
coin.Volume = 0.07669020316362829M;
break;
case 0.25M:
coin.Volume = 0.19172550790907072M;
break;
case 0.50M:
coin.Volume = 0.38345101581814145M;
break;
case 1:
coin.Volume = 0.2738935827272439M;
break;
}
if (_coins.Sum(x => x.Volume) + coin.Volume <= 42)
{
_coins.Add(coin);
}
else
{
throw new InvalidOperationException($"Coinjar is full. Cannot add coin: {coin.Amount}USD");
}
}
else
{
throw new InvalidOperationException($"Invalid coin: {coin.Amount}USD");
}
}