using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Xml.Serialization;
using System.IO;

namespace SimpleRadar
{
    public partial class UserControlRadarView : UserControl
    {
        Dictionary<string, List<AircraftPosition>> RadarPlots;

        List<PointF[]> Maps;

        public String SelectedAircraft = "";

        public UserControlRadarView()
        {
            InitializeComponent();
            this.SetStyle(
            ControlStyles.UserPaint |
            ControlStyles.AllPaintingInWmPaint |
            ControlStyles.OptimizedDoubleBuffer, true);


            this.MouseWheel += new MouseEventHandler(Form1_MouseWheel);



        }

        private void UserControl1_Load(object sender, EventArgs e)
        {
            LoadSectorsFile(@"sectors.xml");

            //Set the drawing deleagate for the Beacon drawing
            Sector.PanAndZoomX = new Sector.PanAndZoom(PanAndZoomX);
            Sector.PanAndZoomY = new Sector.PanAndZoom(PanAndZoomY);

            //Set the drawing deleagate for the Beacon drawing
            FranceMap.PanAndZoomX = new FranceMap.PanAndZoom(PanAndZoomX);
            FranceMap.PanAndZoomY = new FranceMap.PanAndZoom(PanAndZoomY);
        }

        protected override void OnPaint(PaintEventArgs e)
        {
            // we draw the progressbar normally with 
            // the flags sets to our settings
            // DrawProgressBar(pe.Graphics);
            Graphics g = e.Graphics;
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
            g.FillRectangle(Brushes.White, this.ClientRectangle);


            //Draw the map
            FranceMap.Draw(g, Pens.Gray);

            //Draw the sectors
            if (Sectors != null)
            {
                foreach (Sector s in Sectors)
                {
                    s.Draw(g, Pens.LightGray);
                }
            }

            //Draw the Radar
            if (RadarPlots != null)
            {
                foreach (var track in RadarPlots)
                {
                    //Draw the label
                    if (track.Value.Count > 0)
                    {
                        int dx = (int)(10 * Zoom) / 2;
                        AircraftPosition aircraft = track.Value[track.Value.Count - 1];

                        if (aircraft.Flight == SelectedAircraft)
                        {
                            SizeF s = g.MeasureString(aircraft.CallSign, Font);

                            g.FillRectangle(Brushes.Red, GetScreenCoordinates((float)aircraft.X, (float)aircraft.Y).X + dx,
                                 GetScreenCoordinates((float)aircraft.X, (float)aircraft.Y).Y - dx,
                                                     s.Width,
                                                    s.Height);
                        }

                        g.DrawString(aircraft.CallSign, Font, Brushes.Black, GetScreenCoordinates((float)aircraft.X, (float)aircraft.Y).X + dx,
                            GetScreenCoordinates((float)aircraft.X, (float)aircraft.Y).Y - dx);

                        g.DrawLine(Pens.Gray, GetScreenCoordinates((float)aircraft.X, (float)aircraft.Y).X + dx,
                           GetScreenCoordinates((float)aircraft.X, (float)aircraft.Y).Y - dx + Font.Height / 2,
                           GetScreenCoordinates((float)aircraft.X, (float)aircraft.Y).X,
                           GetScreenCoordinates((float)aircraft.X, (float)aircraft.Y).Y);


                    }

                    int pos = 0;
                    foreach (var plot in track.Value)
                    {
                        float dx = (pos * Zoom) / 5;

                        float x = GetScreenCoordinates((float)plot.X, (float)plot.Y).X - dx / 2;
                        float y = GetScreenCoordinates((float)plot.X, (float)plot.Y).Y - dx / 2;

                        if (plot.Flight == SelectedAircraft)
                            g.FillRectangle(Brushes.Red, x, y, dx, dx);

                        g.DrawRectangle(Pens.Black, x, y, dx, dx);

                        pos++;
                    }
                }
            }
            //    g.FillRectangle(item.Brush, GetScreenCoordinates(item.X, item.Y).X, GetScreenCoordinates(item.X, item.Y).Y, item.Size * Zoom, item.Size * Zoom);

        }

        void Form1_MouseWheel(object sender, MouseEventArgs e)
        {
            //Store the original position

            PointF orig = GetImageCoordinates(e.X, e.Y);
            //     Console.WriteLine("orig x " + orig.X + " orig y " + orig.Y);
            if (e.Delta > 0) Zoom += 0.1f * Zoom;
            if (e.Delta < 0) Zoom -= 0.1f * Zoom;

            if (Zoom < 0.1) Zoom = 0.1f;
            if (Zoom > 20) Zoom = 20.0f;


            PointF newPos = GetScreenCoordinates(orig.X, orig.Y);
            //   Console.WriteLine("newPos x " + newPos.X + " newPos y " + newPos.Y);

            //Correct the pan
            PanX -= (newPos.X - e.X) / Zoom;
            PanY += (newPos.Y - e.Y) / Zoom;

            PointF Corrected = GetScreenCoordinates(e.X, e.Y);
            //   Console.WriteLine("Corrected x " + newPos.X + " Corrected y " + newPos.Y);
            //    Console.WriteLine(""); Console.WriteLine("");

            this.Invalidate();
        }

        float PanX = 0;
        float PanY = 0;
        float Zoom = 1;


        private double PanAndZoomX(double x)
        {
            //        return GetImageCoordinates((float)x, 0).X;
            return GetScreenCoordinates((float)x, 0).X;
        }

        private double PanAndZoomY(double y)
        {
            //    return GetImageCoordinates(0, (float)y).Y;
            return GetScreenCoordinates(0, (float)y).Y;
        }


        PointF GetScreenCoordinates(float Xi, float Yi)
        {
            // return new PointF(Zoom * (Xi + PanX), Zoom * (Yi + PanY));
            return new PointF(Zoom * (Xi + PanX), -Zoom * (Yi + PanY));
        }

        PointF GetImageCoordinates(float Xs, float Ys)
        {
            //   return new PointF(Xs / Zoom - PanX, (Ys) / Zoom - PanY);
            return new PointF(Xs / Zoom - PanX, -Ys / Zoom - PanY);
        }



        Point PMouseDown;
        Boolean BMouseDown = false;
        private void Form1_MouseDown(object sender, MouseEventArgs e)
        {
            PMouseDown = new Point(e.X, e.Y);
            BMouseDown = true;


            PointF orig = GetImageCoordinates(e.X, e.Y);
            Console.WriteLine("orig x " + orig.X + " orig y " + orig.Y);
            Console.WriteLine("");

        }

        private void Form1_MouseMove(object sender, MouseEventArgs e)
        {
            if (BMouseDown)
            {
                PanX += (e.X - PMouseDown.X) / Zoom;
                PanY -= (e.Y - PMouseDown.Y) / Zoom;
                PMouseDown = new Point(e.X, e.Y);
                this.Invalidate();
            }

        }

        private void Form1_MouseUp(object sender, MouseEventArgs e)
        {
            BMouseDown = false;
        }

        internal void UpdateRadar(Dictionary<string, List<AircraftPosition>> radarPlots)
        {
            RadarPlots = radarPlots;

            this.Invalidate();
        }

        #region Sectors

        Sector[] Sectors;

        private void LoadSectorsFile(string fileName)
        {
            XmlSerializer serializer = new XmlSerializer(typeof(sectors));

            TextReader reader = new StreamReader(fileName);
            if (reader != null)
            {
                sectors sectorsXml = (sectors)serializer.Deserialize(reader);
                reader.Close();

                //    Sectors = sectorsXml.GetPointList();
                Sectors = new Sector[sectorsXml.Items.Length];
                int indexSec = 0;
                foreach (sectorsSector s in sectorsXml.Items)
                {
                    Sectors[indexSec++] = new Sector(s);
                }
            }

        }
        #endregion

    }
}