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

namespace cAlgo.Indicators
{
    [Indicator(IsOverlay = false, AccessRights = AccessRights.None)]

    public class ACDCOscilator : Indicator
    {

        [Output("Strong Bullish", LineColor = "ForestGreen", PlotType = PlotType.Histogram, Thickness = 4)]
        public IndicatorDataSeries StrongBullish { get; set; }

        [Output("Weak Bullish", LineColor = "LawnGreen", PlotType = PlotType.Histogram, Thickness = 4)]
        public IndicatorDataSeries WeakBullish { get; set; }

        [Output("Strong Bearish", LineColor = "Red", PlotType = PlotType.Histogram, Thickness = 4)]
        public IndicatorDataSeries StrongBearish { get; set; }

        [Output("Weak Bearish", LineColor = "DarkSalmon", PlotType = PlotType.Histogram, Thickness = 4)]
        public IndicatorDataSeries WeakBearish { get; set; }

        private SimpleMovingAverage fastSma;
        private SimpleMovingAverage slowSma;
        private IndicatorDataSeries AcDcOscillator;
        private SimpleMovingAverage movingAverage;
        private IndicatorDataSeries medianprice;

        protected override void Initialize()
        {
            medianprice = CreateDataSeries();
            fastSma = Indicators.SimpleMovingAverage(medianprice, 5);
            slowSma = Indicators.SimpleMovingAverage(medianprice, 34);
            AcDcOscillator = CreateDataSeries();
            movingAverage = Indicators.SimpleMovingAverage(AcDcOscillator, 5);

        }

        public override void Calculate(int index)
        {
            medianprice[index] = (Bars.HighPrices[index] + Bars.LowPrices[index]) / 2;
            AcDcOscillator[index] = fastSma.Result[index] - slowSma.Result[index];


            double prev = AcDcOscillator[index - 1] - movingAverage.Result[index - 1];
            double current = AcDcOscillator[index] - movingAverage.Result[index];

            if (current > 0.0)
            {
                if (current >= prev)
                {
                    StrongBullish[index] = current;
                }
                else if (current < prev)
                {
                    WeakBullish[index] = current;
                }
            }
            else if (current < 0.0)
            {
                if (current <= prev)
                {
                    StrongBearish[index] = current;
                }
                else if (current > prev)
                {
                    WeakBearish[index] = current;
                }

            }

        }
    }
}