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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;

namespace RealTimeGraphEx.Models
{
    public class RealTimeGraphExReachPolygon
    {
        public List<Point> Points { get; set; }
        public List<double> ActualValues { get; set; }

        public int TotalPoints
        {
            get { return Points.Count; }
        }

        public RealTimeGraphExReachPolygon()
        {
            Points = new List<Point>();
            ActualValues = new List<double>();
        }

        public Point Add(double xValue, double yValue, double actualValue)
        {
            var p = new Point(xValue, yValue);
            Points.Add(p);
            ActualValues.Add(actualValue);
            return p;
        }

        public Point Replace(double xValue, double yValue, double actualValue, int index)
        {
            var p = new Point(xValue, yValue);
            Points.RemoveAt(index);
            Points.Insert(index, p);
            ActualValues.RemoveAt(index);
            ActualValues.Insert(index, actualValue);

            return p;
        }

        public void RemoveFromStart(int count)
        {
            lock (Points)
            {
                Points.RemoveRange(0, count);
                ActualValues.RemoveRange(0, count);

                double offSet = Points[0].X;

                for (int i = 0; i < Points.Count; i++)
                {
                    Points[i] = new Point(Points[i].X - offSet, Points[i].Y);
                }
            }
        }

        public void ClearPoints()
        {
            Points.Clear();
        }

        public void ClearActualPoints()
        {
            ActualValues.Clear();
        }

        public List<Point> ToPolygonPointsFill(double width, double height)
        {
            lock (Points)
            {
                List<Point> points = new List<Point>();

                for (int i = 0; i < Points.Count; i++)
                {
                    points.Add(Points[i]);
                }

                points.Add(new Point(width, height));

                points.Add(new Point(0, height));

                points.Add(new Point(0, points[0].Y));

                return points;
            }
        }

        public List<Point> ToPolygonPointsFill(double width, double height, double scaleFactor, Func<double, double> scaleY)
        {
            double xValue = 0;

            lock (Points)
            {
                List<Point> points = new List<Point>();

                for (int i = 0; i < Points.Count; i++)
                {
                    points.Add(new Point(xValue, scaleY(Points[i].Y)));
                    xValue += scaleFactor;
                }

                points.Add(new Point(xValue, height));

                points.Add(new Point(0, height));

                points.Add(new Point(0, points[0].Y));

                return points;
            }
        }

        public List<Point> ToPolygonPoints(double width, double height, double scaleFactor, Func<double, double> scaleY)
        {
            double xValue = 0;

            lock (Points)
            {
                List<Point> points = new List<Point>();

                for (int i = 0; i < Points.Count; i++)
                {
                    points.Add(new Point(xValue, scaleY(Points[i].Y)));
                    xValue += scaleFactor;
                }

                return points;
            }
        }

        public List<Point> ToPolygonPointsWaveFill(double width, double height)
        {
            lock (Points)
            {
                List<Point> points = new List<Point>();

                for (int i = 0; i < Points.Count; i++)
                {
                    points.Add(Points[i]);
                }

                for (int i = Points.Count - 1; i >= 0; i--)
                {
                    points.Add(new Point(Points[i].X, (height - Points[i].Y)));
                }

                points.Add(new Point(points[0].X, (height / 2)));

                points.Add(new Point(0, (height / 2)));

                points.Add(new Point(0, points[0].Y));

                return points;
            }
        }

        public List<Point> ToPolygonPointsWaveFill(double width, double height, double scaleFactor, Func<double, double> scaleY)
        {
            if (Points.Count == 0) return new List<Point>();

            double xValue = 0;

            lock (Points)
            {
                List<Point> points = new List<Point>();

                for (int i = 0; i < Points.Count; i++)
                {
                    points.Add(new Point(xValue, scaleY(Points[i].Y)));
                    xValue += scaleFactor;
                }

                //points.Add(new Point(width, points[points.Count - 1].Y));

                points.Add(new Point(width, (height / 2)));

                points.Add(new Point(width, (height - scaleY(Points[Points.Count - 1].Y))));

                xValue -= scaleFactor;

                for (int i = Points.Count - 1; i >= 0; i--)
                {
                    points.Add(new Point(xValue, (height - scaleY(Points[i].Y))));
                    xValue -= scaleFactor;
                }

                points.Add(new Point(0, points[points.Count - 1].Y));

                points.Add(new Point(0, (height / 2)));

                points.Add(new Point(0, (height / 2)));

                points.Add(new Point(0, points[0].Y));

                return points;
            }
        }

        public List<Point> ToPolygonPointsWave(double width, double height, double scaleFactor, Func<double, double> scaleY)
        {
            if (Points.Count == 0) return new List<Point>();

            double xValue = 0;

            lock (Points)
            {
                List<Point> points = new List<Point>();

                for (int i = 0; i < Points.Count; i++)
                {
                    points.Add(new Point(xValue, scaleY(Points[i].Y)));
                    xValue += scaleFactor;
                }

                //points.Add(new Point(width, points[points.Count - 1].Y));

                points.Add(new Point(width, (height / 2)));

                points.Add(new Point(width, (height - scaleY(Points[Points.Count - 1].Y))));

                xValue -= scaleFactor;

                for (int i = Points.Count - 1; i >= 0; i--)
                {
                    points.Add(new Point(xValue, (height - scaleY(Points[i].Y))));
                    xValue -= scaleFactor;
                }

                points.Add(new Point(0, points[points.Count - 1].Y));

                points.Add(new Point(0, (height / 2)));

                points.Add(new Point(0, (height / 2)));

                points.Add(new Point(0, points[0].Y));

                return points;
            }
        }
    }
}