Help-convert-Rule-1-TradingView-script-to-WL7

CODE:
using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Indicators;
using System.Drawing;
using System.Collections.Generic;

namespace WealthScript2 
{
    public class urielted20210722 : UserStrategyBase
    {
        //create indicators and other objects here, this is executed prior to the main trading loop
        public override void Initialize(BarHistory bars)
        {
         //MACD
         int fastLength = 8, slowlength = 17, MACDLength = 9;
         macd = MACD.Series(bars.Close, fastLength, slowlength);
         aMACD = EMA.Series(macd, MACDLength);
         macdDelta = macd - aMACD;

         //SMA signal
         int smaSignal = 10;
         sma = SMA.Series(bars.Close, smaSignal);

         //Stochastics 14-5 (Slow)
         int stochasticLength = 14, stochasticOverBought = 80, stochasticOverSold = 20, smoothK = 5, smoothD = 5;
         k = SMA.Series(StochK.Series(bars, stochasticLength), smoothK);
         d = StochD.Series(bars, smoothK, smoothD);
         prev = new TimeSeries(bars.DateTimes, 0);

         PlotTimeSeriesLine(macd, "macd", "MACD", Color.Brown);
         PlotTimeSeriesLine(aMACD, "macd signal", "MACD", Color.DarkGreen);
         PlotTimeSeries(macdDelta, "macd delta", "MACD", Color.Blue, PlotStyles.ThickHistogram);
         
         PlotTimeSeriesLine(sma, "sma", "Price", Color.Blue);

         PlotTimeSeriesLine(k, "stochK", "Stoch", Color.Red);
         PlotTimeSeriesLine(d, "stochD", "Stoch", Color.Blue);
        }

        //execute the strategy rules here, this is executed once for each bar in the backtest history
        public override void Execute(BarHistory bars, int idx)
        {
         if (idx > 0)
         {
            //Buy and close conditions
            bool smaCrossOver = bars.Close.CrossesOver(sma, idx);
            bool stochasticCrossOver = k.CrossesOver(d, idx);
            bool macdCrossOver = macdDelta.CrossesOver(0, idx);

            bool smaBullish = smaCrossOver || (bars.Close[idx] >= sma[idx] && Math.Abs(bars.Close[idx] - sma[idx]) > Math.Abs(bars.Close[idx - 1] - sma[idx - 1]));
            bool macdBullish = macdCrossOver || macdDelta[idx] >= 0 && Math.Abs(macdDelta[idx]) > Math.Abs(macdDelta[idx - 1]);
            bool stochasticBullish = stochasticCrossOver || k[idx] >= d[idx] && Math.Abs(k[idx] -d[idx]) > Math.Abs(k[idx - 1] - d[idx - 1]);

            bool smaCrossUnder = bars.Close.CrossesUnder(sma, idx);
            bool macdCrossUnder = macdDelta.CrossesUnder(0, idx);
            bool stochasticCrossUnder = k.CrossesUnder(d, idx);

            bool smaBearish = smaCrossUnder || (bars.Close[idx] <= sma[idx] && Math.Abs(bars.Close[idx] - sma[idx]) > Math.Abs(bars.Close[idx - 1] - sma[idx - 1]));
            bool macdBearish = macdCrossUnder || macdDelta[idx] >= 0 && Math.Abs(macdDelta[idx]) > Math.Abs(macdDelta[idx - 1]);
            bool stochasticBearish = stochasticCrossUnder || k[idx] <= d[idx] && Math.Abs(k[idx] -d[idx]) > Math.Abs(k[idx - 1] - d[idx - 1]);

            //Set up the premises for the strategy
            bool le = (macdCrossOver && smaBullish && stochasticBullish) || (macdBullish && smaCrossOver && stochasticBullish) || (macdBullish && smaBullish && stochasticCrossOver);
            bool se = (macdCrossUnder && smaBearish && stochasticBearish) || (macdBearish && smaCrossUnder && stochasticBearish) || (macdBearish && smaBearish && stochasticCrossUnder);

            bool le_filt = le && !se;
            bool se_filt = se && !le;

            if(idx > 0)
               prev[idx] = se_filt ? 1 : le_filt ? -1 : prev[idx -1];
            else
               prev[idx] = 0;

            bool se_final = idx > 0 ? se_filt && prev[idx -1] == -1 : false;
            bool le_final = idx > 0 ? le_filt && prev[idx -1] == 1 : false;

            if (!HasOpenPosition(bars, PositionType.Long))
            {
               //code your buy conditions here
               if(le_final)
                  PlaceTrade(bars, TransactionType.Buy, OrderType.Market);
            }
            else
            {
               //code your sell conditions here
               if(se_final)
                  PlaceTrade(bars, TransactionType.Sell, OrderType.Market);
            }
         }
         
        }

      //declare private variables below
      TimeSeries macd, aMACD, macdDelta, k, d, sma, prev;
   }
}