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

namespace cAlgo
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class LWMA_CrossOver_Signal : Indicator
    {    
        [Parameter("Source")]
        public DataSeries Source { get; set; }
        
        [Parameter("Fast LWMA (5)",DefaultValue = 5)]
        public int Fast_LWMA { get; set; }
        
        [Parameter("Slow LWMA (6)", DefaultValue = 6)]
        public int Slow_LWMA { get; set; }

        [Parameter("M.A Type", DefaultValue = MovingAverageType.Weighted )]
        public MovingAverageType MA_Type { get; set; }
        
        [Parameter("Shift (1)", DefaultValue = 1)]
        public int Shift { get; set; }
        
        
        [Output("CrossUp", LineColor = "Lime", PlotType = PlotType.Points, LineStyle = LineStyle.Dots, Thickness = 8)]
        public IndicatorDataSeries CrossUp { get; set; }
        
        [Output("CrossDn", LineColor = "HotPink", PlotType = PlotType.Points, LineStyle = LineStyle.Dots, Thickness = 8)]
        public IndicatorDataSeries CrossDn { get; set; }


        private MovingAverage FasterLWMA, SlowerLWMA;
        

        protected override void Initialize()
        {           
            FasterLWMA = Indicators.MovingAverage(Source, Fast_LWMA, MA_Type);
            SlowerLWMA = Indicators.MovingAverage(Source, Slow_LWMA, MA_Type);
        }

        public override void Calculate(int index)
        { 
              double AvgRange = 0.0;
              
              for(int x = 11; x > 0; x--)
              {
                 AvgRange += Math.Abs(Bars.HighPrices.Last(x) - Bars.LowPrices.Last(x));
              }
              
              double Range = AvgRange/10.0;
              
              int i = 1;
              
              double fasterLWMAnow = FasterLWMA.Result.Last(i);
              double fasterLWMAprevious = FasterLWMA.Result.Last(i+1);
              double fasterLWMAafter = FasterLWMA.Result.Last(i -1);
              
              double slowerLWMAnow = SlowerLWMA.Result.Last(i);
              double slowerLWMAprevious = SlowerLWMA.Result.Last(i+1);
              double slowerLWMAafter = SlowerLWMA.Result.Last(i -1);
              
              if(fasterLWMAnow.CompareTo(slowerLWMAnow) > 0 && fasterLWMAprevious.CompareTo(slowerLWMAprevious) < 0 && fasterLWMAafter.CompareTo(slowerLWMAafter) > 0)
              {
                  CrossUp[index-Shift-1] = Bars.LowPrices[index-Shift-1] - Range * 0.5;
              }
              else if(fasterLWMAnow.CompareTo(slowerLWMAnow) < 0 && fasterLWMAprevious.CompareTo(slowerLWMAprevious) > 0 && fasterLWMAafter.CompareTo(slowerLWMAafter) < 0)
              {
                  CrossDn[index-Shift-1] = Bars.HighPrices[index-Shift-1] + Range * 0.5;
              }
        }
   }    
}