/** This class is responsible for storing and displaying the chat
 *
 *	@author Kristof Friedrichsen
 *      @author Ryan Mann
 *      @author Bob Free
 *      @author Pat O'Neill
 *	@version December 15, 2006
 */

package chutesladder;


import java.awt.BorderLayout;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;

public class Chat extends JPanel implements Runnable{
  public JTextArea chatH;
  JTextField say;
  JButton send;
  JScrollPane paneCh;
  public String chatHistory;
  public static String host = "localhost";  
  public static Integer port = 2699;
  public String titleName = "";

  
  protected BufferedReader in;
  protected PrintWriter out;
 


  protected Thread listener;

    public Chat (String title, InputStream iin, OutputStream iout) {
    
    this.in = new BufferedReader (new InputStreamReader (iin));
    this.out = new PrintWriter ( new OutputStreamWriter(iout));
    titleName = title;
        chatH = new JTextArea("", 8, 22);
        paneCh = new JScrollPane(chatH);
        chatH.setEditable(false);
         
        paneCh.setAutoscrolls(true);
        paneCh.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
        chatH.setLineWrap(true);
        
        chatHistory = new String("Say something...");
        
                /* The key listener is responsible to display the written text in the
                 * chat box after pressing enter */
        
        say = new JTextField(20);
                say.addKeyListener
                (
                        new KeyAdapter()
                        {
                                public void keyPressed(KeyEvent e){
                 
                                        if(e.getKeyCode() == KeyEvent.VK_ENTER)
                                        {
                                            String statement = titleName + say.getText();
                                                out.println (statement);
                                                out.flush ();
      
                                                say.setText ("");
                                        }
                                }
                        }
                );
 
        say.requestFocus ();
        listener = new Thread (this);
        listener.start ();
        setLayout(new BorderLayout());
        add(BorderLayout.NORTH, paneCh);
        add(BorderLayout.CENTER, say);
        //add(BorderLayout.SOUTH, send);
    }
    public void run () {
    try
    {
      while (true)
      {
            String line = in.readLine ();
            //if ( !line.matches ( "\\S") )
            {          
                chatH.append (line + "\n");
                chatH.setCaretPosition( chatH.getDocument().getLength() );
            }
            
      }
    }
    catch (IOException ex)
    {
      ex.printStackTrace ();
    }
    finally
    {
      listener = null;
      say.setVisible (false);
      validate ();
      out.close ();
    }
  }

}