public async Task SellAsync(CandleModel candle)
        {
            if (candle != null)
            {
                if (_userBalanceService.HasOpenOrder)
                {
                    await _exchangeProvider.CancelOrderAsync(_tradingPair, _userBalanceService.OpenOrderNumber);

                    return;
                }
                var sellPrice = !_userBalanceService.EnableRealtimeTrading ? candle.ClosePrice : _exchangeProvider.GetTicker(_tradingPair).Result.HighestBid;
                _userBalanceService.TradingCount++;
                long orderNumber = 0;
                if (_userBalanceService.EnableRealtimeTrading)
                {
                    orderNumber = await _exchangeProvider.CreateOrderAsync(TradeType.Sell, _tradingPair, sellPrice, _userBalanceService.Rate);

                    _userBalanceService.HasOpenOrder = true;

                    await CheckOrderInvoked(orderNumber, TradeType.Sell);
                }

                var profit = _userBalanceService.GetProfit(sellPrice, candle.StartDateTime);
                var msg    = $"Sell crypto currency. Date: {candle.StartDateTime}; Price: ${sellPrice}; Rate: {_userBalanceService.Rate}; OrderNumber: {orderNumber}\n" +
                             $"Profit: ${profit.Profit}\n" +
                             $"Trading time in hours: {Math.Round(profit.TradingTimeInMinutes / 60.0, 2)}\n" +
                             "\n" +
                             _userBalanceService.TradingSummary();

                Console.WriteLine(msg);

                _emailService.SendEmail(string.Format(_cryptoTradingOptions.EmailSubject, _tradingPair), msg);
            }
        }
        public Task SellAsync(CandleModel candle)
        {
            _hasOpenPosition = false;
            _userBalanceService.TradingCount++;
            var profit = _userBalanceService.GetProfit(candle.ClosePrice, candle.StartDateTime);
            var msg    = $"Sell crypto currency. Date: {candle.StartDateTime}; Price: ${candle.ClosePrice}; Rate: {_userBalanceService.Rate}\n" +
                         $"Profit: ${profit.Profit}\n" +
                         $"Trading time in hours: {Math.Round(profit.TradingTimeInMinutes / 60.0, 2)}\n";

            Console.WriteLine(msg);

            return(Task.FromResult(0));
        }