Add take profit on SMA

Hi guys,

Appreciate if anyone can help with adding Take Profit and Stop Loss with this code

Parameters TakeProfit is there but it is not placed in the action of the code.

using cAlgo.API;
using cAlgo.API.Indicators;

namespace cAlgo.Robots
{
    [Robot(AccessRights = AccessRights.None)]
    public class Sma252 : Robot
    {
        private SimpleMovingAverage _sma;

        private Position _position;
        private bool _isShortPositionOpen;
        private bool _isLongPositionOpen;


        [Parameter(DefaultValue = 252)]
        public int Period { get; set; }

        [Parameter(DefaultValue = 10000)]
        public int Volume { get; set; }

        [Parameter()]
        public DataSeries Source { get; set; }

        [Parameter("Take Profit", DefaultValue = 40, MinValue = 0, Step = 10)]
        public double TakeProfit { get; set; }

        protected override void OnStart()
        {
            _sma = Indicators.SimpleMovingAverage(Source, Period);

        }

        protected override void OnBar()
        {
            if (Trade.IsExecuting)
                return;

            var lastIndex = MarketSeries.Close.Count - 1;

            _isLongPositionOpen = _position != null && _position.TradeType == TradeType.Buy;
            _isShortPositionOpen = _position != null && _position.TradeType == TradeType.Sell;

            double close = MarketSeries.Close[lastIndex - 1];
            double lastClose = MarketSeries.Close[lastIndex - 2];
            double sma = _sma.Result[lastIndex - 1];
            double lastSma = _sma.Result[lastIndex - 2];

            if (!_isLongPositionOpen && sma < close && lastSma > lastClose)
            {
                ClosePosition(_position);
                Buy();
            }
            else if (!_isShortPositionOpen && sma > close && lastSma < lastClose)
            {
                ClosePosition(_position);
                Sell();
            }
        }

        /// <summary>
        /// _position holds the latest opened position
        /// </summary>
        /// <param name="openedPosition"></param>
        protected override void OnPositionOpened(Position openedPosition)
        {
            _position = openedPosition;
        }

        /// <summary>
        /// Create Buy Order
        /// </summary>
        private void Buy()
        {
            Trade.CreateBuyMarketOrder(Symbol, Volume);
        }

        /// <summary>
        /// Create Sell Order
        /// </summary>
        private void Sell()
        {
            Trade.CreateSellMarketOrder(Symbol, Volume);
        }

        /// <summary>
        /// Close Position
        /// </summary>
        /// <param name="pos"></param>
        private void ClosePosition(Position pos)
        {
            if (pos == null)
                return;
            Trade.Close(pos);

        }

        /// <summary>
        /// Print Error
        /// </summary>
        /// <param name="error"></param>
        protected override void OnError(Error error)
        {
            Print(error.Code.ToString());
        }
    }
}