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

namespace cAlgo
{
    [Indicator(IsOverlay = false, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class WeisWavesTraderExperto : Indicator
    {
        public enum Multi
        {
            Pips = 10,
            Unit = 100,
            Point = 1
        }

        public enum devi
        {
            Price = 1,
            ATR = 2
        }
        [Parameter("Deviation Size", Group = "Deviations Settings", DefaultValue = Multi.Unit)]
        public Multi Multiplier { get; set; }

        [Parameter("Deviation", Group = "Deviations Settings", DefaultValue = 50, MinValue = 1)]
        public int Deviation { get; set; }

        [Parameter("Sell Histogram Negative", Group = "Histogram Settings", DefaultValue = false)]
        public bool change { get; set; }

        [Output("UpVolume", LineColor = "DarkViolet", PlotType = PlotType.Histogram, Thickness = 5)]
        public IndicatorDataSeries UpVolume { get; set; }

        [Output("DownVolume", LineColor = "White", PlotType = PlotType.Histogram, Thickness = 5)]
        public IndicatorDataSeries DownVolume { get; set; }

        [Parameter("Atr Multiplier", Group = "ATR Settings", DefaultValue = 1.5, MinValue = 0, MaxValue = 10)]
        public double atrMultiplier { get; set; }

        [Parameter("Atr Period", Group = "ATR Settings", DefaultValue = 13, MinValue = 1)]
        public int atrPeriod { get; set; }

        [Parameter("Deviation Type", Group = "Deviations Settings", DefaultValue = devi.ATR)]
        public devi deviationType { get; set; }


        private int lastHighIndex = 0;
        private int lastLowIndex = 0;
        private double _point;
        private DataSeries CurrentClose;
        private IndicatorDataSeries Direction;
        private IndicatorDataSeries DownBuffer;
        private AverageTrueRange _averageTrueRange;
        private double DeviationAtr;
        private bool deviationPrice = true;
        private double deviationValue;


        protected override void Initialize()
        {


            Direction = CreateDataSeries();
            CurrentClose = Bars.ClosePrices;
            DownBuffer = CreateDataSeries();
            _point = Symbol.TickSize * (double)Multiplier;
            _averageTrueRange = Indicators.AverageTrueRange(atrPeriod, MovingAverageType.Weighted);
            if (deviationType == devi.ATR)
            {
                _point = 1;
                deviationPrice = false;
            }
            else
            {
                deviationPrice = true;
            }


        }

        public override void Calculate(int index)
        {

            if (deviationPrice)
            {
                deviationValue = Deviation;
            }
            else
            {
                DeviationAtr = _averageTrueRange.Result[index] * atrMultiplier;
                deviationValue = DeviationAtr;
            }

            int r = 0;

            if (index == 1)
            {
                if (CurrentClose[index] >= Bars.ClosePrices[index - 1])
                {
                    lastHighIndex = index;
                    lastLowIndex = index - 1;
                    Direction[index] = 1;
                    Direction[index - 1] = 1;
                    UpVolume[index - 1] = Bars.TickVolumes[index - 1];
                    UpVolume[index] = UpVolume[index - 1] + Bars.TickVolumes[index];

                }
                else if (CurrentClose[index] < Bars.ClosePrices[index - 1])
                {
                    lastLowIndex = index;
                    lastHighIndex = index - 1;
                    Direction[index] = 3;
                    Direction[index - 1] = 3;
                    DownBuffer[index - 1] = Bars.TickVolumes[index - 1];
                    DownBuffer[index] = DownBuffer[index - 1] + Bars.TickVolumes[index];
                    DownVolume[index - 1] = isNegative(DownBuffer[index - 1]);
                    DownVolume[index] = isNegative(DownBuffer[index]);

                    //**********************************************************//

                }
            }


            Direction[index] = Direction[index - 1];

            if (Direction[index] == 1)
            {
                if (Bars.HighPrices[lastHighIndex] - CurrentClose[index] > (deviationValue * _point))
                {
                    Direction[index] = 3;
                }
            }
            else if (Direction[index] == 3)
            {
                if (Bars.ClosePrices[index] - Bars.LowPrices[lastLowIndex] > (deviationValue * _point))
                {
                    Direction[index] = 1;
                }
            }

            if (Direction[index] == 1)
            {
                if (Direction[index - 1] == 1)
                {
                    UpVolume[index] = UpVolume[index - 1] + Bars.TickVolumes[index];
                    DownVolume[index] = 0;

                    if (CurrentClose[lastHighIndex] < CurrentClose[index])
                    {
                        lastHighIndex = index;
                    }

                }
                else if (Direction[index - 1] == 3)
                {
                    UpVolume[lastLowIndex + 1] = Bars.TickVolumes[lastLowIndex + 1];
                    DownVolume[lastLowIndex + 1] = 0;

                    for (r = (lastLowIndex + 2); r <= index; r++)
                    {
                        UpVolume[r] = UpVolume[r - 1] + Bars.TickVolumes[r];
                        DownVolume[r] = 0;
                    }
                    lastHighIndex = index;
                }
            }
            else if (Direction[index] == 3)
            {
                if (Direction[index - 1] == 3)
                {
                    DownBuffer[index] = DownBuffer[index - 1] + Bars.TickVolumes[index];
                    DownVolume[index] = isNegative(DownBuffer[index]);
                    UpVolume[index] = 0;
                    if (CurrentClose[index] < CurrentClose[lastLowIndex])
                    {
                        lastLowIndex = index;
                    }
                }
                else if (Direction[index - 1] == 1)
                {
                    DownBuffer[lastHighIndex + 1] = Bars.TickVolumes[lastHighIndex + 1];
                    DownVolume[lastHighIndex + 1] = isNegative(DownBuffer[lastHighIndex + 1]);
                    UpVolume[lastHighIndex + 1] = 0;
                    for (r = (lastHighIndex + 2); r <= index; r++)
                    {
                        DownBuffer[r] = DownBuffer[r - 1] + Bars.TickVolumes[r];
                        DownVolume[r] = isNegative(DownBuffer[r]);

                        UpVolume[r] = 0;
                    }
                    lastLowIndex = index;
                }

            }

        }
        public double isNegative(double number)
        {
            double val = 0;
            if (!change)
            {
                val = number;
            }
            else if (change)
            {
                val = -number;
            }
            return val;
        }
    }
}