public void Insert(Coin coin)
{
if (!IsValid(coin))
{
throw new ArgumentException("Only accpets 50p coins");
}
UserCoins.Add(coin);
}
private double RemainderFromUserCoins(double price)
{
double Remainder = 0;
double totalCoins = 0;
foreach (Coin coin in UserCoins)
{
Remainder = price - totalCoins - coin.Value;
totalCoins += coin.Value;
}
CoinStock.AddRange(UserCoins);
UserCoins.Clear();
return(Remainder);
}
public double UserCoinsTotal()
{
return(UserCoins.Sum(coin => coin.Value));
}
public UserCoin GetCoin(string coin, string exchange)
{
var userCoinKey = UserCoinKey.Get(coin, exchange);
return(UserCoins.ContainsKey(userCoinKey) ? UserCoins[userCoinKey] : null);
}
