server.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.text.SimpleDateFormat;
import java.util.*;
import java.net.*;
import java.io.*;

class Server implements ActionListener {

    JTextField text;
    static JPanel p2;
    static Box vertical = Box.createVerticalBox();
    static JFrame f = new JFrame();
    static DataOutputStream dout;

    Server() {
        f.setLayout(null);

        // Top panel
        JPanel p1 = new JPanel();
        p1.setBackground(new Color(7, 94, 84));
        p1.setBounds(0, 0, 450, 70);
        p1.setLayout(null);
        f.add(p1);

        // Back button
        ImageIcon i1 = new ImageIcon("icons/3 (1).png");
        Image i2 = i1.getImage().getScaledInstance(25, 25, Image.SCALE_DEFAULT);
        JLabel back = new JLabel(new ImageIcon(i2));
        back.setBounds(5, 20, 25, 25);
        p1.add(back);


        ImageIcon i7 = new ImageIcon("icons/video (1).png"); 
        Image i8 = i7.getImage().getScaledInstance(50,50,Image.SCALE_DEFAULT);
        ImageIcon i9 = new ImageIcon (i8); 
        JLabel video = new JLabel (i9); 
        video.setBounds(300,20,30,30);
        p1.add(video);



        ImageIcon i10 = new ImageIcon("icons/phone (1).png"); 
        Image i11 = i10.getImage().getScaledInstance(50,50,Image.SCALE_DEFAULT); 
        ImageIcon i12 = new ImageIcon (i11); 
        JLabel phone = new JLabel (i12); 
        phone.setBounds(360,20,35,30); 
        p1.add(phone);


        ImageIcon i13 = new ImageIcon("icons/3icon (1).png"); 
        Image i14 = i13.getImage().getScaledInstance(50,50,Image.SCALE_DEFAULT); 
        ImageIcon i15 = new ImageIcon (i14); 
        JLabel icon3 = new JLabel (i15); 
        icon3.setBounds(400,20,30,30); 
        p1.add(icon3);

        back.addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent ae) {
                System.exit(0);
            }
        });

        // Profile
        ImageIcon i4 = new ImageIcon("icons/me.png");
        Image i5 = i4.getImage().getScaledInstance(50, 50, Image.SCALE_DEFAULT);
        JLabel profile = new JLabel(new ImageIcon(i5));
        profile.setBounds(40, 10, 50, 50);
        p1.add(profile);

        // Name
        JLabel name = new JLabel("Nandani");
        name.setBounds(110, 15, 100, 18);
        name.setForeground(Color.WHITE);
        name.setFont(new Font("SAN_SERIF", Font.BOLD, 18));
        p1.add(name);

        JLabel status = new JLabel("Online");
        status.setBounds(110, 35, 100, 18);
        status.setForeground(Color.WHITE);
        status.setFont(new Font("SAN_SERIF", Font.BOLD, 14));
        p1.add(status);

        // Chat panel
        p2 = new JPanel();
        p2.setLayout(new BorderLayout());

        JScrollPane scroll = new JScrollPane(p2);
        scroll.setBounds(5, 75, 425, 510);
        scroll.setBorder(null);
        f.add(scroll);

        // Input field
        text = new JTextField();
        text.setBounds(5, 600, 310, 40);
        text.setFont(new Font("SAN_SERIF", Font.PLAIN, 16));
        f.add(text);

        // Send button
        JButton send = new JButton("Send");
        send.setBounds(320, 600, 100, 40);
        send.setBackground(new Color(7, 94, 84));
        send.setForeground(Color.WHITE);
        send.addActionListener(this);
        f.add(send);

        // Frame settings
        f.setSize(450, 700);
        f.setLocation(200, 50);
        f.getContentPane().setBackground(Color.WHITE);
        f.setVisible(true);
    }

    // Send message
    public void actionPerformed(ActionEvent ae) {
        try {
            String out = text.getText().trim();
            if (out.isEmpty()) return;

            JPanel p3 = formatLabel(out);

            JPanel right = new JPanel(new BorderLayout());
            right.add(p3, BorderLayout.LINE_END);

            vertical.add(right);
            vertical.add(Box.createVerticalStrut(15));
            p2.add(vertical, BorderLayout.PAGE_START);

            // Send to client
            if (dout != null) {
                dout.writeUTF(out);
                dout.flush();
                System.out.println("Server sent: " + out);
            } else {
                System.out.println("⚠ Client not connected yet");
            }

            text.setText("");

            vertical.revalidate();
            f.repaint();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    // Message format
    public static JPanel formatLabel(String out) {
        JPanel panel = new JPanel();
        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));

        JLabel output = new JLabel(
                "<html><p style=\"width:150px\">" + out + "</p></html>"
        );
        output.setBackground(new Color(37, 211, 102));
        output.setOpaque(true);
        output.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));

        panel.add(output);

        Calendar cal = Calendar.getInstance();
        SimpleDateFormat sdf = new SimpleDateFormat("HH:mm");

        JLabel time = new JLabel(sdf.format(cal.getTime()));
        panel.add(time);

        return panel;
    }

    public static void main(String[] args) {

        new Server();

        try {
            ServerSocket skt = new ServerSocket(6001);
            System.out.println("Server started...");

            while (true) {
                Socket s = skt.accept();
                System.out.println("✅ Client connected!");

                DataInputStream din = new DataInputStream(s.getInputStream());
                dout = new DataOutputStream(s.getOutputStream());

                // Receiving thread
                new Thread(() -> {
                    try {
                        while (true) {
                            String msg = din.readUTF();
                            System.out.println("Received: " + msg);

                            JPanel panel = formatLabel(msg);
                            JPanel left = new JPanel(new BorderLayout());
                            left.add(panel, BorderLayout.LINE_START);

                            SwingUtilities.invokeLater(() -> {
                                vertical.add(left);
                                vertical.add(Box.createVerticalStrut(15));
                                p2.add(vertical, BorderLayout.PAGE_START); 
                                vertical.revalidate();
                                f.repaint();
                            });
                        }
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }).start();
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}