PVSRA Volume

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

namespace cAlgo
{
    [Levels(0)]
    [Indicator(IsOverlay = false, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class PVSRAVolume : Indicator
    {
        [Parameter("LookBack", DefaultValue = 10)]
        public int LookBack { get; set; }

        [Output("Bullish Normal", LineColor = "EE9FA0A2", PlotType = PlotType.Histogram, Thickness = 5)]
        public IndicatorDataSeries BullNormalVolume { get; set; }

        [Output("Bearish Normal", LineColor = "EE6A6A75", PlotType = PlotType.Histogram, Thickness = 5)]
        public IndicatorDataSeries BearNormalVolume { get; set; }

        [Output("Bullish Climax", LineColor = "EE1FC047", PlotType = PlotType.Histogram, Thickness = 5)]
        public IndicatorDataSeries BullClimaxVolume { get; set; }

        [Output("Bearish Climax", LineColor = "EEE00106", PlotType = PlotType.Histogram, Thickness = 5)]
        public IndicatorDataSeries BearClimaxVolume { get; set; }

        [Output("Bullish Rising", LineColor = "EE1188FF", PlotType = PlotType.Histogram, Thickness = 5)]
        public IndicatorDataSeries BullRisingVolume { get; set; }

        [Output("Bearish Rising", LineColor = "EEAD0FFF", PlotType = PlotType.Histogram, Thickness = 5)]
        public IndicatorDataSeries BearRisingVolume { get; set; }

        protected override void Initialize()
        {
        }

        public override void Calculate(int index)
        {
            var open = Bars.OpenPrices[index];
            var high = Bars.HighPrices[index];
            var low = Bars.LowPrices[index];
            var close = Bars.ClosePrices[index];
            var volume = Bars.TickVolumes[index];
            var isBullish = close > open;
            double av = 0;
            int va = 0;

            for (int n = 1; n <= LookBack; n++)
            {
                av += Bars.TickVolumes.Last(n);
            }
            av = av / LookBack;

            var range = high - low;
            var val = volume * range;
            double hiValue = 0;

            for (int n = 1; n <= LookBack; n++)
            {
                var temp = Bars.TickVolumes.Last(n) * (Bars.HighPrices.Last(n) - Bars.LowPrices.Last(n));
                if (temp >= hiValue)
                    hiValue = temp;
            }

            if (val >= hiValue || volume >= av * 2)
            {
                va = 1;
            }

            if (va == 0 && volume >= av * 1.5)
            {
                va = 2;
            }

            switch (va)
            {
                case 0:
                    if (isBullish)
                        BullNormalVolume[index] = volume;
                    else
                        BearNormalVolume[index] = volume;
                    break;
                case 1:
                    if (isBullish)
                        BullClimaxVolume[index] = volume;
                    else
                        BearClimaxVolume[index] = volume;
                    break;
                case 2:
                    if (isBullish)
                        BullRisingVolume[index] = volume;
                    else
                        BearRisingVolume[index] = volume;
                    break;
            }
        }

        private static T GetAttributeFrom<T>(object instance, string propertyName)
        {
            var attrType = typeof(T);
            var property = instance.GetType().GetProperty(propertyName);
            return (T)property.GetCustomAttributes(attrType, false).GetValue(0);
        }
    }
}