private IEnumerable <Coin> Withdraw(int sum, WithdrawalMode mode)
{
var result = new List <Coin>();
while (sum > 0)
{
Coin coin;
switch (mode)
{
case WithdrawalMode.Buy:
coin = GetCoinForBuy(sum);
coin.IsUser = false;
break;
case WithdrawalMode.Change:
coin = GetCoinForChange(sum);
coin.IsUser = true;
break;
case WithdrawalMode.Flush:
coin = GetCoinForFlush(sum);
_coins.Remove(coin);
break;
default:
throw new NotImplementedException();
}
result.Add(coin);
sum -= coin.Value;
}
return(result);
}
/// <summary>
/// Attempts to transfer funds from one BankAccount to another.
/// </summary>
/// <param name="other">Destination BankAccount.</param>
/// <param name="amount">Amount to transfer.</param>
/// <param name="allowOverdraw">True if the transaction can leave the source account negative.</param>
/// <returns>True if the transaction succeeded.</returns>
public bool TryTransferTo(BankAccount other, decimal amount, WithdrawalMode withdrawalMode = WithdrawalMode.RequireFullBalance)
{
if (other == null)
{
return(false);
}
if (TryWithdraw(amount, withdrawalMode))
{
other.Deposit(amount);
return(true);
}
return(false);
}
/// <summary>
/// Tries to withdraw a specified amount from the BankAccount's Balance.
/// </summary>
/// <param name="amount">Amount to withdraw.</param>
/// <param name="allowOverdraw">True if the account can go negative.</param>
/// <returns>True if transaction succeeded.</returns>
public bool TryWithdraw(decimal amount, WithdrawalMode withdrawalMode = WithdrawalMode.RequireFullBalance) // bool allowOverdraw = false)
{
var bank = BankingPlugin.Instance.Bank;
decimal newBalance, previousBalance;
if (amount < 0)
{
amount = Math.Abs(amount);
}
lock (locker)
{
if ((Balance - amount) < 0)
{
if (withdrawalMode == WithdrawalMode.RequireFullBalance)
{
return(false);
}
if (withdrawalMode == WithdrawalMode.StopAtZero)
{
amount = Balance;
}
}
previousBalance = Balance;
Balance -= amount;
newBalance = Balance;
//bank.Database.Update(this);
MarkAsDirty();
}
//bank.InvokeBalanceChanged(this, ref newBalance, ref previousBalance);
bank.InvokeAccountWithdraw(this, ref newBalance, ref previousBalance);
return(true);
}