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

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

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

        public RealTimeGraphExPolygon()
        {
            Points = new List<RealTimeGraphExPoint>();
            ActualValues = new List<double>();
        }

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

        public RealTimeGraphExPoint Replace(double xValue, double yValue, double actualValue, int index)
        {
            var p = new RealTimeGraphExPoint() { XValue = xValue, YValue = yValue };
            if (index < Points.Count)
            {
                Points.RemoveAt(index);
                Points.Insert(index, p);
                ActualValues.RemoveAt(index);
                ActualValues.Insert(index, actualValue);
            }
            return p;
        }

        public void RemoveFromStart(int count)
        {
            if (count < 1) return;

            lock (Points)
            {
                if (Points.Count < count) return;

                Points.RemoveRange(0, count);
                ActualValues.RemoveRange(0, count);

                double offSet = Points[0].XValue;

                for (int i = 0; i < Points.Count; i++)
                {
                    Points[i].XValue = Points[i].XValue - offSet;
                }
            }
        }

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

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

        public int[] ToPolygonPoints()
        {
            lock (Points)
            {
                List<int> points = new List<int>();

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

                return points.ToArray();
            }
        }

        public int[] ToPolygonPoints(double scaleFactor, Func<double, double> scaleY)
        {
            double xValue = 0;

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

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

                return points.ToArray();
            }
        }

        public int[] ToPolygonPoints(double offsetX, double offsetY, double scaleFactor, Func<double, double> scaleY)
        {
            double xValue = 0;

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

                for (int i = 0; i < Points.Count; i++)
                {
                    points.Add((int)(xValue + offsetX));
                    points.Add((int)(scaleY(Points[i].YValue) + offsetY));
                    xValue += scaleFactor;
                }

                return points.ToArray();
            }
        }

        public int[] ToPolygonPointsFill(double offsetX, double offsetY, double width, double height, double scaleFactor, Func<double, double> scaleY)
        {
            double xValue = 0;

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

                for (int i = 0; i < Points.Count; i++)
                {
                    points.Add((int)(xValue + offsetX));
                    points.Add((int)(scaleY(Points[i].YValue) + offsetY));

                    xValue += scaleFactor;
                }

                points.Add((int)((xValue - scaleFactor) + offsetX));
                points.Add((int)height);
                points.Add(0);
                points.Add((int)height);
                points.Add(0);
                points.Add(points[1]);

                return points.ToArray();
            }
        }

        public int[] ToPolygonPointsReflection(double offsetX, double offsetY, double height, double scaleFactor, Func<double, double> scaleY)
        {
            double xValue = 0;

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

                for (int i = 0; i < Points.Count; i++)
                {
                    points.Add((int)(xValue + offsetX));
                    points.Add((int)((height - scaleY(Points[i].YValue)) + offsetY));

                    xValue += scaleFactor;
                }

                return points.ToArray();
            }
        }

        public int[] ToPolygonPointsWaveFill(double offsetX, double offsetY, double width, double height, double scaleFactor, Func<double, double> scaleY)
        {
            double xValue = 0;

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

                for (int i = 0; i < Points.Count; i++)
                {
                    points.Add((int)(xValue + offsetX));
                    points.Add((int)((scaleY(Points[i].YValue)) + offsetY));

                    xValue += scaleFactor;
                }

                points.Add((int)width);
                points.Add((int)(height / 2));

                points.Add((int)width);
                points.Add((int)((height - scaleY(Points[Points.Count - 1].YValue)) + offsetY));

                xValue -= scaleFactor;

                for (int i = Points.Count - 1; i >= 0; i--)
                {
                    points.Add((int)(xValue + offsetX));
                    points.Add((int)((height - scaleY(Points[i].YValue)) + offsetY));

                    xValue -= scaleFactor;
                }

                points.Add(0);
                points.Add(points[points.Count - 2]);
                points.Add(points[0]);
                points.Add((int)(height / 2));
                points.Add(0);
                points.Add((int)(height / 2));
                points.Add(0);
                points.Add(points[1]);

                return points.ToArray();
            }
        }

        public int[] ToPolygonPointsReflection(double height)
        {
            lock (Points)
            {
                List<int> points = new List<int>();

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

                return points.ToArray();
            }
        }

        public int[] ToPolygonPointsReflection(double height, double scaleFactor, Func<double, double> scaleY)
        {
            double xValue = 0;

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

                for (int i = 0; i < Points.Count; i++)
                {
                    points.Add((int)xValue);
                    points.Add((int)(height - scaleY(Points[i].YValue)));

                    xValue += scaleFactor;
                }

                return points.ToArray();
            }
        }

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

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

                points.Add((int)width);
                points.Add((int)height);
                points.Add(0);
                points.Add((int)height);
                points.Add(0);
                points.Add(points[1]);

                return points.ToArray();
            }
        }

        public int[] ToPolygonPointsFill(double width, double height, double scaleFactor, Func<double, double> scaleY)
        {
            double xValue = 0;

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

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

                    xValue += scaleFactor;
                }

                points.Add((int)(xValue - scaleFactor));
                points.Add((int)height);
                points.Add(0);
                points.Add((int)height);
                points.Add(0);
                points.Add(points[1]);

                return points.ToArray();
            }
        }

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

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

                for (int i = Points.Count - 1; i >= 0; i--)
                {
                    points.Add((int)Points[i].XValue);
                    points.Add((int)(height - Points[i].YValue));
                }

                points.Add(points[0]);
                points.Add((int)(height / 2));
                points.Add(0);
                points.Add((int)(height / 2));
                points.Add(0);
                points.Add(points[1]);

                return points.ToArray();
            }
        }

        public int[] ToPolygonPointsWaveFill(double width, double height, double scaleFactor, Func<double, double> scaleY)
        {
            double xValue = 0;

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

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

                    xValue += scaleFactor;
                }

                points.Add((int)width);
                points.Add((int)(height / 2));

                points.Add((int)width);
                points.Add((int)(height - scaleY(Points[Points.Count - 1].YValue)));

                xValue -= scaleFactor;

                for (int i = Points.Count - 1; i >= 0; i--)
                {
                    points.Add((int)xValue);
                    points.Add((int)(height - scaleY(Points[i].YValue)));

                    xValue -= scaleFactor;
                }

                points.Add(0);
                points.Add(points[points.Count - 2]);
                points.Add(points[0]);
                points.Add((int)(height / 2));
                points.Add(0);
                points.Add((int)(height / 2));
                points.Add(0);
                points.Add(points[1]);

                return points.ToArray();
            }
        }
    }
}