public async Task <PlaceBetFailure?> PlaceBet(TUser user, Side side, long amount)
{
if (amount < _minBet)
{
return(new PlaceBetFailure.BetTooLow(_minBet));
}
if (amount > _maxBet)
{
return(new PlaceBetFailure.BetTooHigh(_maxBet));
}
foreach ((Side loopSide, Dictionary <TUser, long> betsForSide) in _bets)
{
if (Equals(loopSide, side))
{
long existingBet = betsForSide.GetValueOrDefault(user, 0);
if (existingBet > amount)
{
return(new PlaceBetFailure.CannotLowerBet(existingBet));
}
}
else
{
if (betsForSide.ContainsKey(user))
{
return(new PlaceBetFailure.CannotChangeSide(loopSide));
}
}
}
long currentBet = _bets[side].GetValueOrDefault(user, 0);
long availableForBet = await _getAvailableMoney(user) + currentBet;
if (amount > availableForBet)
{
return(new PlaceBetFailure.InsufficientFunds(availableForBet));
}
_bets[side][user] = amount;
BetPlaced?.Invoke(this, new BetPlacedEventArgs <TUser>(user, side, amount));
return(null);
}
protected virtual void OnBetPlaced(EventArgs e)
{
BetPlaced?.Invoke(this, e);
}