DPO Enhacned

using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
using cAlgo.Indicators;

namespace cAlgo
{
    [Levels(0)]
    [Indicator(IsOverlay = false, ScalePrecision = 1, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class DPOTrigger : Indicator
    {
        [Parameter("DPO Period", Group = "DPO", DefaultValue = 21)]
        public int DPOPer { get; set; }
        [Parameter("DPO Smoothing", Group = "DPO", DefaultValue = 4)]
        public int DPOSmt { get; set; }
        [Parameter("MA Type", Group = "DPO", DefaultValue = MovingAverageType.Simple)]
        public MovingAverageType MAType { get; set; }
        [Parameter("ATR Period", Group = "ATR", DefaultValue = 200)]
        public int ATRPer { get; set; }
        [Parameter("ATR Multiplier", Group = "ATR", DefaultValue = 2, Step = 0.1)]
        public double ATRMul { get; set; }
        [Parameter("STD Period", Group = "ST Dev", DefaultValue = 200)]
        public int STDPer { get; set; }
        [Parameter("STD Multiplier", Group = "ST Dev", DefaultValue = 1)]
        public double STDMul { get; set; }
        [Parameter("Draw ATR Area", Group = "Areas", DefaultValue = true)]
        public bool ATRArea { get; set; }
        [Parameter("Draw STD Area", Group = "Areas", DefaultValue = false)]
        public bool STDArea { get; set; }

        [Output("STD Up", LineColor = "RoyalBlue", LineStyle = LineStyle.LinesDots)]
        public IndicatorDataSeries STDUp { get; set; }
        [Output("STD Down", LineColor = "RoyalBlue", LineStyle = LineStyle.LinesDots)]
        public IndicatorDataSeries STDDown { get; set; }
        [Output("ATR Up", LineColor = "83FFA500", LineStyle = LineStyle.Solid)]
        public IndicatorDataSeries ATRUp { get; set; }
        [Output("ATR Down", LineColor = "83FFA500", LineStyle = LineStyle.Solid)]
        public IndicatorDataSeries ATRDown { get; set; }
        [Output("Main")]
        public IndicatorDataSeries Result { get; set; }

        private DetrendedPriceOscillator DPO;
        private AverageTrueRange ATR;
        private StandardDeviation STD;
        private ExponentialMovingAverage EMA;

        private int Thickness = 3;

        protected override void Initialize()
        {
            DPO = Indicators.DetrendedPriceOscillator(MarketSeries.Close, DPOPer, MAType);
            EMA = Indicators.ExponentialMovingAverage(DPO.Result, DPOSmt);
            ATR = Indicators.AverageTrueRange(ATRPer, MovingAverageType.Exponential);
            STD = Indicators.StandardDeviation(MarketSeries.Close, STDPer, MovingAverageType.Simple);
            if (RunningMode == RunningMode.RealTime)
                IndicatorArea.DrawHorizontalLine("0", 0, Color.FromHex("807D00F1"));
        }

        public override void Calculate(int index)
        {
            Result[index] = EMA.Result[index] / Symbol.PipSize;
            ATRUp[index] = ATR.Result[index] * ATRMul / Symbol.PipSize;
            ATRDown[index] = -ATR.Result[index] * ATRMul / Symbol.PipSize;
            STDUp[index] = STD.Result[index] * STDMul / Symbol.PipSize;
            STDDown[index] = -STD.Result[index] * STDMul / Symbol.PipSize;

            if (ATRArea)
                if (Math.Abs(Result[index]) > ATRUp[index])
                    IndicatorArea.DrawTrendLine("ATR Area " + index, index, Result[index], index, Result[index] < 0 ? ATRDown[index] : ATRUp[index], Result[index] < 0 ? Color.FromArgb(50, 255, 0, 0) : Color.FromArgb(50, 0, 255, 0), Thickness);
            if (STDArea)
                if (Math.Abs(Result[index]) > STDUp[index])
                    IndicatorArea.DrawTrendLine("STD Area " + index, index, Result[index], index, Result[index] < 0 ? STDDown[index] : STDUp[index], Color.FromArgb(50, 0, 0, 255), Thickness);
        }
    }
}