import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;
import java.util.Scanner;

public class Client extends Thread implements ActionListener{

    ChatMessage myObject;
    boolean sendingdone = false, receivingdone = false;
    Scanner scan;
    Socket socketToServer;
    ObjectOutputStream myOutputStream;
    ObjectInputStream myInputStream;
    Frame f;
    TextField tf;
    TextArea ta;
    Button connect = new Button("Connect");
    Button disconnect = new Button("Disconnect");
    List list;
    String name;

    public Client (){

        f = new Frame();
        f.setSize(1000,500);
        f.setTitle("Chat Client");
        f.addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent we){
                System.exit(0);
            }
        });
        tf = new TextField();
        tf.addActionListener(this);
        f.add(tf, BorderLayout.NORTH);
        ta = new TextArea();
        f.add(ta, BorderLayout.CENTER);

        MyNewDrawPanel mdp = new MyNewDrawPanel();
        f.add(mdp,BorderLayout.EAST);

        Panel buttonPanel = new Panel();

        disconnect.setEnabled(false);
        buttonPanel.add(connect);
        buttonPanel.add(disconnect);
        f.add(buttonPanel, BorderLayout.SOUTH);

        connect.addActionListener(this);
        disconnect.addActionListener(this);


        list = new List();
        f.add(list, BorderLayout.WEST);


                f.setVisible(true);
    }
    public void actionPerformed(ActionEvent ae){

        if (ae.getSource()== tf){
            myObject = new ChatMessage();
            myObject.setMessage(tf.getText());
            myObject.setName(name);
            tf.setText("");
            try{
                myOutputStream.reset();
                myOutputStream.writeObject(myObject);
            }catch(IOException ioe){
                System.out.println(ioe.getMessage());
            }
        }

        if (ae.getSource()== connect){
            try{

            scan = new Scanner(System.in);

            myObject = new ChatMessage();

            socketToServer = new Socket("127.0.0.1", 4000);

            myOutputStream = new ObjectOutputStream(socketToServer.getOutputStream());

            myInputStream = new ObjectInputStream(socketToServer.getInputStream());

         start();

        }
        catch(Exception e){
            System.out.println(e.getMessage());
        }

            name = tf.getText();
            setName(name);

         myObject = new ChatMessage();
            myObject.setMessage(getName() + " has connected!");
            myObject.setName(name);
            tf.setText("");
            try{
                myOutputStream.reset();
                myOutputStream.writeObject(myObject);
            }catch(IOException ioe){
                System.out.println(ioe.getMessage());
            }

            disconnect.setEnabled(true);
        }
        if(ae.getSource()== disconnect){
         myObject = new ChatMessage();
            myObject.setMessage(getName() + " has disconnected!");
            myObject.setName(name);
            tf.setText("");
            try{
                myOutputStream.reset();
                myOutputStream.writeObject(myObject);
            }catch(IOException ioe){
                System.out.println(ioe.getMessage());
            }
            list.remove(getName());
            try{
                myOutputStream.close();
                myInputStream.close();
            socketToServer.close();
            }catch(IOException e){
            }
        }
    }


        public void run(){
        System.out.println("Listening for messages from server . . . ");
        try{
            while(!receivingdone){
                myObject = (ChatMessage)myInputStream.readObject();
                        ta.append(myObject.getName() + " : " + myObject.getMessage() + "n");
                list.add(myObject.getName());
            }
        }catch(IOException ioe){
            System.out.println("IOE: " + ioe.getMessage());
        }catch(ClassNotFoundException cnf){
            System.out.println(cnf.getMessage());
        }
    }

    public static void main(String[] arg){

        Client c = new Client();

    }
}