using System;
using System.IO;
using Lumpio.Gif;
using System.Drawing;
using System.Drawing.Imaging;
using System.Net;
using System.Net.Sockets;
using System.Collections;

namespace Lumpio.Tests.Gif {
	public class GifWriterTest {
		public static void Main() {
			new GifWriterTest();
		}

		public GifWriterTest() {
			byte[] http = System.Text.Encoding.UTF8.GetBytes("HTTP/1.1 200 OK\r\nConnection: close;\r\nContent-type: image/gif\r\n\r\n");
			
			GifWriter gw = new GifWriter(65, 65, null);
			gw.Palette[0] = Color.FromArgb(0xFFFFFF);
			gw.Palette[1] = Color.FromArgb(0x000000);
			gw.Palette[2] = Color.FromArgb(0x808080);
			gw.Palette[3] = Color.FromArgb(0xAAAAAA);
			gw.BgColor = 0;
			
			Socket serverSocket;
			ArrayList clients = new ArrayList();
			
			serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
			serverSocket.Blocking = false;
			serverSocket.Bind(new IPEndPoint(IPAddress.Parse("192.168.1.11"), 1234));
			serverSocket.Listen(10);

			byte[] image;

			Console.WriteLine("Listening now");
			
			while (true) {
				if (serverSocket.Poll(0, SelectMode.SelectRead)) {
					Socket sock = serverSocket.Accept();
					clients.Add(sock);
					Console.WriteLine("Client connected from {0}", ((IPEndPoint)sock.RemoteEndPoint).Address);
					sock.Send(http);
					sock.Send(gw.GetHeaders());
				}
				image = gw.GetFrame(renderClock(65, 65));
				for (int i = 0; i < clients.Count; ++i) {
					Socket client = (Socket)clients[i];
					try {
						client.Send(image);
					} catch (SocketException e) {
						Console.WriteLine("Client disconnected"/*, ((IPEndPoint)client.RemoteEndPoint).Address*/);
						clients.RemoveAt(i);
						--i;
					}
				}
				System.Threading.Thread.Sleep(1000);
			}
		}

		private byte[] renderClock(int width, int height) {
			byte[] data = new byte[width * height];
			double minAngle, hourAngle, secAngle, a, r;
			int x, y;
			
			for (int i = 0; i < width * height; ++i) {
				data[i] = 0;
			}

			for (a = 0; a < Math.PI * 2; a += Math.PI / 6) {
				x = (int)(Math.Cos(a) * 32) + 32;
				y = (int)(-Math.Sin(a) * 32) + 32;

				data[y * 65 + x] = 1;
			}
			
			DateTime now = DateTime.Now;
			minAngle = (-Math.PI / 30) * now.Minute + (Math.PI / 2);
			hourAngle = (-Math.PI / 6) * now.Hour + (Math.PI / 2) + (-Math.PI / 360) * now.Minute;
			secAngle = (-Math.PI / 30) * now.Second + (Math.PI / 2);

			for (r = 0; r < 30; r++) {
				x = (int)(Math.Cos(hourAngle) * r) + 32;
				y = (int)(-Math.Sin(hourAngle) * r) + 32;
				data[y * width + x] = 1;
			}

			for (r = 0; r < 28; r++) {
				x = (int)(Math.Cos(minAngle) * r) + 32;
				y = (int)(-Math.Sin(minAngle) * r) + 32;
				data[y * width + x] = 2;
			}

			for (r = 0; r < 26; r++) {
				x = (int)(Math.Cos(secAngle) * r) + 32;
				y = (int)(-Math.Sin(secAngle) * r) + 32;
				data[y * width + x] = 3;
			}
			return data;
		}
	}
}