/**
 * Clase MulticastClient
 *@author Diego del Valle
 *@author Diego Gonzalez
 */

import java.io.*;
import java.net.*;
import java.util.*;

import javax.swing.*;

/**Clase que implementa cliente multicast que recepcionara informacion enviada por 
 *servidor multicast, con el objetivo de dibujar en pantalla una figura rebotando
 *por las pantallas de los clientes
 */
public class MulticastClient {

    private static final String MCAST_ADDR = "230.0.0.1";
    private static final int MCAST_PORT = 9013;
    private static final int DGRAM_BUF_LEN = 512;
	 private static final int NO_CLIENT = 200;                                
    private Dibujo dibujo;
    private static int num_client = NO_CLIENT;
	 
    /**Unico metodo de la clase que implementa a cliente aceptando conexion y recibiendo 
     * datos de servidor
     */
    public static void main(String[] args){
      String msg = "Hello ";
      InetAddress group = null;
      ClientCoordinates crd = null;
		EditorFrame frame = null;
      try {
        group = InetAddress.getByName(MCAST_ADDR);
      } catch(UnknownHostException e) {
        e.printStackTrace();
        System.exit(1);
      }
      try {
        MulticastSocket socket = new MulticastSocket(MCAST_PORT);
        socket.joinGroup(group);
        DatagramPacket hi = new DatagramPacket(msg.getBytes(), msg.length(),
                         group, MCAST_PORT);
		  System.out.println("Requesting connection to server...");						 
        System.out.println("Sending: " + msg);
        socket.send(hi);
		  boolean flag = true;
		  while (flag) {
	        byte[] buf = new byte[DGRAM_BUF_LEN];
	        DatagramPacket recv = new DatagramPacket(buf, buf.length);
	        socket.receive(recv);
			  byte[] data = recv.getData();
			  String result[] = (new String(data)).split("\\s");
			  if(result[0].equals("Welcome")) {
			      if (num_client == NO_CLIENT && Integer.parseInt(result[1]) == Integer.parseInt(result[2])) {
                  num_client = Integer.parseInt(result[1]);       		
						System.out.println("Requested connection accepted by server...");
						System.out.println("Initial configuration data receiving: " + result[1] + 
						                   " " + result[2] + " " + result[5] + " " + result[6] +
												 " " + result[7] + " " + result[8] + " " + result[9] + " "+  result[10]);
						System.out.println("Creating window enviroment with width: " + Integer.parseInt(result[3]) +
						                   ", heigt: " + Integer.parseInt(result[4]));
						frame = new EditorFrame(Integer.parseInt(result[3]), Integer.parseInt(result[4]));   
		            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                  frame.setSize(Integer.parseInt(result[3]), Integer.parseInt(result[4]));
                  frame.setLocation(Integer.parseInt(result[5]),Integer.parseInt(result[6]));            		   
						frame.show();					   
					   crd = new ClientCoordinates(result[3], result[4], result[5], result[6], result[7], result[8], result[9], result[10], frame.getDibujo(), result[11]);
						flag = false;
					}
				}	
			}
		  System.out.println("...Client starting receiving data position from server...");
        while (true) {
		     byte[] buf = new byte[DGRAM_BUF_LEN];
	        DatagramPacket recv = new DatagramPacket(buf, buf.length);
	        socket.receive(recv);
			  byte[] data = recv.getData();
			  String result[] = (new String(data)).split("\\s");
			  if(result[0].equals("Welcome")) {
			      if (num_client == Integer.parseInt(result[1])) {
					   System.out.println("Receiving border modifying data from server: up: " + result[7] +
						                   " down: " + result[8] + " left: " + result[9] + " rigth: " + result[10]);      							   
					   crd.set(result[7], result[8], result[9], result[10]);
					}
				}	
				else if(!result[0].equals("Hello")) {
				    int heigth = (new Integer(result[1])).intValue();
                int width = (new Integer(result[0])).intValue();
					 int circulo = (new Integer(result[2])).intValue();
                crd.changeCoordinates(width, heigth, circulo);
            }

		  }
      } catch(IOException e) {
        e.printStackTrace();
        System.exit(2);
      }
    }	
}