/**
 * Title:        Multiserver<p>
 * Description:  <p>
 * Copyright:    <p>
 * Company:      <p>
 * @author 
 * @version 1.0
 */

/**
 * Title:        Servidor de Chat<p>
 * Description:  <p>
 * Copyright:    Copyright (c) David Marques e Carlos Coutinho<p>
 * Company:      <p>
 * @author David Marques e Carlos Coutinho
 * @version 1.0
 */
package MultiServer;

import java.net.*;
import java.io.*;
import javax.swing.UIManager;
import java.awt.*;

class MultiServer extends Thread {
  boolean packFrame = false;

  ServerSocket server;
  public static Socket sock;
  public static int totcon = 0;
  static int MAX_CONECTIONS= 100;
  static Server[] users = new Server[MAX_CONECTIONS];
  static String[] nomes = new String[MAX_CONECTIONS];
  PrintWriter pw;
  public AtividServer frame;

  //Construct the application
  MultiServer()throws Exception {
    AtividServer frame = new AtividServer();
    //Validate frames that have preset sizes
    //Pack frames that have useful preferred size info, e.g. from their layout
    if (packFrame) {
      frame.pack();
    }
    else {
      frame.validate();
    }
    //Center the window
    Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    Dimension frameSize = frame.getSize();
    if (frameSize.height > screenSize.height) {
      frameSize.height = screenSize.height;
    }
    if (frameSize.width > screenSize.width) {
      frameSize.width = screenSize.width;
    }
    frame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);
    frame.setVisible(true);

    server = new ServerSocket(5555);
    frame.txtativ.setText("Servidor Iniciado na porta 5555\n");
    try {
	  while (true)
	  {
	    sock = server.accept();
	    totcon++;
	    users[totcon-1]=new Server(sock, totcon-1, this, frame);
	  }
	}
	catch (Exception erro)
	{
	  frame.txtativ.append("\nErro1: " + erro);
	}
	finally
	{
	  server.close();
	}
  }

  //Main method
  public static void main(String[] args)throws Exception {
    try {
      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    }
    catch(Exception e) {
      e.printStackTrace();
    }
    new MultiServer();
  }
/*  synchronized void escreve(String msg) throws Exception
  {
   frame.txtativ.append(msg);
  }
*/
  synchronized void sendtoall(int ID,String msg) throws Exception
	{
		int r;
		for(r=0; r<totcon; r++)
		{
			if(users[r]!=null && r!=ID)
			{
				users[r].mensagem(msg);
			}
		}
	}

      synchronized void term(int ID,String msg) throws Exception
	{
		users[ID] = null;
		nomes[ID] = null;
		sendtoall(ID, msg);
	}

      void setNome(int ID, String nome) throws Exception
	{
		boolean jaexiste=false;
		int r;
		for(r=0; r<totcon; r++)
		{
			if (nomes[r]!=null && nomes[r].equals(nome) && r!=ID)
			{
				jaexiste=true;
				break;
			}
		}
		if (jaexiste) {
	   	      users[ID].mensagem("Nome '" + nome + "' ja existe.");
		} else {
			if (nomes[ID]==null) {
				users[ID].mensagem("Seu nome eh: " + nome);
			} else {
				users[ID].mensagem(nomes[ID] + " agora eh " + nome);
			}
			nomes[ID]=nome;
		}
	}

      String getNome(int ID) throws Exception
	{
		return nomes[ID];
	}

}