/// <summary>
/// execute withdraw operation.
/// Throws exception when amount is higher than balance value
/// records balance after operation into operation record
/// </summary>
public override void Execute()
{
if (Executed)
{
return;
}
if (_targetAccount.GetBalanceValue() < _amount)
{
throw new BankException(ResponseStatus.InsufficientFunds);
}
_targetAccount.SubstractFromBalance(_amount);
Executed = true;
RecordBalanceAfterOperation(_targetAccount.GetBalanceValue());
_targetAccount.AddOperationToHistory(OperationRecord);
}