using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace ICanShowYouTheWorld
{
    public partial class Form1 : Form
    {
        public class PlanetaryDisplay
        {
            public int theta;
            public int delta;
            public int x;
            public int y;
            public int r;
            public int offset;
            public string name;
            public Color color;

            public Label planet;
            public TrackBar speed;
            public Label slow;
            public Label fast;
            public int componentOffset;

            public PlanetaryDisplay(int _x, int _r, int _offset, string _name, Color _color,
                                    int _componentOffset, Control.ControlCollection _thisCollection)
            {
                planet = new System.Windows.Forms.Label();
                planet.AutoSize = true;
                planet.Font = new System.Drawing.Font("Microsoft Sans Serif", 9.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
                planet.ForeColor = System.Drawing.Color.White;
                planet.Location = new System.Drawing.Point(12, 73 + componentOffset);
                planet.Name = "label2";
                planet.Size = new System.Drawing.Size(135, 16);
                planet.TabIndex = 4;
                planet.Text = String.Format("Planet #{0}: {1}", _componentOffset + 1, _name);

                _thisCollection.Add(planet);

                speed = new System.Windows.Forms.TrackBar();
                speed.Location = new System.Drawing.Point(16, 92 + componentOffset);
                speed.Maximum = 5;
                speed.Minimum = 1;
                speed.Size = new System.Drawing.Size(104, 45);
                speed.TabIndex = 5;
                speed.Value = 1;
                speed.Scroll += new System.EventHandler(this.speed_ValueChange);

                _thisCollection.Add(speed);

                slow = new System.Windows.Forms.Label();
                slow.AutoSize = true;
                slow.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
                slow.ForeColor = System.Drawing.Color.White;
                slow.Location = new System.Drawing.Point(12, 124 + componentOffset);
                slow.Name = "label3";
                slow.Size = new System.Drawing.Size(34, 13);
                slow.TabIndex = 6;
                slow.Text = "Slow";

                _thisCollection.Add(slow);

                fast = new System.Windows.Forms.Label();
                fast.AutoSize = true;
                fast.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
                fast.ForeColor = System.Drawing.Color.White;
                fast.Location = new System.Drawing.Point(86, 124 + componentOffset);
                fast.Name = "label4";
                fast.Size = new System.Drawing.Size(31, 13);
                fast.TabIndex = 7;
                fast.Text = "Fast";

                _thisCollection.Add(fast);
            }

            public void speed_ValueChange(object sender, EventArgs args)
            {
                this.delta = speed.Value;
            }
        }
        public static int SUN_R = 50;

        public static int THETA = 0;
        public static int DELTA = 1;

        public static int MERC_X;
        public static int MERC_Y;
        public static int MERC_R;
        public static int MERC_OFFSET;

        public static List<PlanetaryDisplay> solarSystem;

        public static System.Windows.Forms.Timer drawTimer;

        public Form1()
        {
            InitializeComponent();

            solarSystem = new List<PlanetaryDisplay>();

            MERC_R = 20;
            MERC_OFFSET = 100;
            MERC_X = (Canvas.Width / 2) - MERC_OFFSET;
            MERC_Y = Canvas.Height / 2;

            solarSystem.Add(new PlanetaryDisplay(MERC_X, MERC_R, MERC_OFFSET, "Mercury", Color.OrangeRed, 0, this.Controls));

            drawTimer = new System.Windows.Forms.Timer();
            drawTimer.Interval = 17;
            drawTimer.Tick += MovePlanets;
            drawTimer.Enabled = true;
        }

        public void MovePlanets(object sender, EventArgs args)
        {
            solarSystem[0].theta += solarSystem[0].delta;

            solarSystem[0].x = (Canvas.Width / 2) - ((int)(Math.Cos((double)(solarSystem[0].theta * (Math.PI / 180))) * solarSystem[0].offset));
            solarSystem[0].y = (Canvas.Height / 2) - ((int)(Math.Sin((double)(solarSystem[0].theta * (Math.PI / 180))) * solarSystem[0].offset));

            Canvas.Refresh();
        }

        private void Canvas_Paint(object sender, PaintEventArgs e)
        {
            Graphics g = e.Graphics;

            using (Brush sunBrush = new SolidBrush(Color.Yellow))
            {
                g.FillCircle(sunBrush, Canvas.Width / 2, Canvas.Height / 2, SUN_R);

                using (Font myFont = new Font(new FontFamily("Courier New"), 12))
                {
                    g.DrawString("Sun", myFont, sunBrush, Canvas.Width / 2 - 20, Canvas.Height / 2 - SUN_R - 20);
                }
            }

            using (Brush mercBrush = new SolidBrush(solarSystem[0].color))
            {
                g.FillCircle(mercBrush, solarSystem[0].x, solarSystem[0].y, solarSystem[0].r);
                using (Font myFont = new Font(new FontFamily("Courier New"), 12))
                {
                    g.DrawString(solarSystem[0].name, myFont, mercBrush, solarSystem[0].x - 30, solarSystem[0].y - solarSystem[0].r - 20);
                }
            }
        }

        private void Planets_UpDown_ValueChanged(object sender, EventArgs e)
        {

        }

        private void Merc_TrackBar_Scroll(object sender, EventArgs e)
        {
            // foreach (PlanetaryDisplay i in collection)
            // if (i.speed == sender)
            // i.Delta = sender.Value;
            DELTA = Merc_TrackBar.Value;
        }
    }

    public static class GraphicsExtensions
    {
        public static void DrawCircle(this Graphics g, Pen pen,
                                      float centerX, float centerY, float radius)
        {
            g.DrawEllipse(pen, centerX - radius, centerY - radius,
                          radius + radius, radius + radius);
        }

        public static void FillCircle(this Graphics g, Brush brush,
                                      float centerX, float centerY, float radius)
        {
            g.FillEllipse(brush, centerX - radius, centerY - radius,
                          radius + radius, radius + radius);
        }
    }
}