public Task <Deal> Buy(TradingForecast forecast, PairConfig config)
{
return(WithConnection(async(connection, transaction) =>
{
Book book = await _bookManager.GetLast(forecast.ExchangeCode, forecast.Symbol, connection, transaction);
Balance balance = await _balanceManager.Get(config.AssetTwo, forecast.ExchangeCode, connection, transaction);
Order order = new Order();
order.ExchangeCode = forecast.ExchangeCode;
order.Symbol = forecast.Symbol;
order.TradingModeCode = TradingModeCode.AUTO;
order.FillPoliticsCode = FillPoliticsCode.GTC;
order.OrderStatusCode = OrderStatusCode.PENDING;
order.OrderTypeCode = OrderTypeCode.LMT;
order.OrderSideCode = OrderSideCode.BUY;
decimal availableAmount = balance.Available <= config.MaxOrderAmount.Value ? balance.Available : balance.Available;
if (availableAmount < config.MinOrderAmount.Value)
{
throw new Exception($"Not enough funds. Exchange code: {forecast.ExchangeCode}, Asset: {config.AssetTwo}");
}
decimal quantity = Math.Round(availableAmount / book.BestAskPrice, 3);
order.Price = book.BestAskPrice;
order.Amount = quantity;
Deal deal = await _dealProcessor.CreateForOrder(order);
return deal;
}));
}
public async Task <Balance> UpdateOrCreate(Balance balance)
{
return(await WithConnection(async (connection, transaction) =>
{
Balance storedBalance = await _balanceManager.Get(balance.Asset, balance.ExchangeCode, connection, transaction);
if (storedBalance != null)
{
return await _balanceManager.Update(balance, connection, transaction);
}
else
{
long id = await _balanceManager.Create(balance, connection, transaction);
return await _balanceManager.Get(id, connection, transaction);
}
}));
}
