import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;

public class KaZaGUI extends JFrame
{
    private JButton m_browseButton;
    private JButton m_connectButton;
    private JButton m_closeButton;
    private JTextField m_shareFolderField;
    private JTextField m_statusField;
    private JTextField m_serverField;
    private ActionEventHandler m_handler;
    private JComboBox m_speedCombo;

    public KaZaGUI()
    {
        super("Josh's KaZa application for CS654!");

        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(600, 400);
        setVisible(true);

        m_handler = new ActionEventHandler(this);

        Container c = getContentPane();
        JTabbedPane pane = new JTabbedPane();
        c.add(pane);

        JPanel clientPanel = getClientPanel();
        pane.add("Client", clientPanel);

        JPanel transferPanel = getTransferPanel();
        pane.add("Transfers", transferPanel);

        JPanel serverPanel = getServerPanel();
        pane.add("Server", serverPanel);
    }

    private class ActionEventHandler implements ActionListener
    {
        private KaZaGUI m_kg;

        public ActionEventHandler(KaZaGUI kg)
        {
            m_kg = kg;
        }

        public void actionPerformed(ActionEvent e)
        {
            if (e.getSource() == m_browseButton)
            {
                JFileChooser fc = new JFileChooser();
                fc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
                fc.showOpenDialog(m_kg);
                m_shareFolderField.setText(fc.getSelectedFile().getAbsolutePath());
            }
            else if (e.getSource() == m_closeButton)
            {
                System.exit(0);
            }
        }
    }

    public class ConnectionSpeed
    {
        String m_caption;
        int m_kbps;

        public ConnectionSpeed(String caption, int kbps)
        {
            m_caption = caption;
            m_kbps = kbps;
        }

        public String toString()
        {
            return m_caption;
        }
    }

    private JPanel getClientPanel()
    {
        m_shareFolderField = new JTextField();
        m_browseButton = new JButton("...");
        m_browseButton.addActionListener(m_handler);
        m_serverField = new JTextField();
        m_statusField = new JTextField();
        m_connectButton = new JButton("Connect");
        m_connectButton.addActionListener(m_handler);
        m_closeButton = new JButton("Close");
        m_closeButton.addActionListener(m_handler);
        Vector<ConnectionSpeed> speeds = new Vector<ConnectionSpeed>();
        speeds.add(new ConnectionSpeed("Modem", 50));
        speeds.add(new ConnectionSpeed("768 Kbps", 768));
        speeds.add(new ConnectionSpeed("1.5 Mbps", 1500));
        speeds.add(new ConnectionSpeed("3 Mbps", 3000));
        speeds.add(new ConnectionSpeed("6 Mbps", 6000));
        speeds.add(new ConnectionSpeed("10 Mbps", 10000));
        speeds.add(new ConnectionSpeed("100 Mbps", 100000));
        speeds.add(new ConnectionSpeed("1 Gbps", 1000000));
        speeds.add(new ConnectionSpeed("10 Gbps", 10000000));
        m_speedCombo = new JComboBox(speeds);
        m_speedCombo.setSelectedIndex(3);

        JPanel clientPanel = new JPanel();
        clientPanel.setLayout(new BoxLayout(clientPanel, BoxLayout.Y_AXIS));
        JPanel p = new JPanel();
        p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
        p.add(new JLabel("User name: "));
        p.add(new JTextField());
        clientPanel.add(p);
        p = new JPanel();
        p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
        p.add(new JLabel("Connection speed: "));
        p.add(m_speedCombo);
        clientPanel.add(p);
        p = new JPanel();
        p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
        p.add(new JLabel("Shared folder: "));
        p.add(m_shareFolderField);
        p.add(m_browseButton);
        clientPanel.add(p);
        p = new JPanel();
        p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
        p.add(new JLabel("Server: "));
        p.add(m_serverField);
        clientPanel.add(p);
        clientPanel.add(new Box.Filler(new Dimension(0, 0),
                                       new Dimension(0, Short.MAX_VALUE),
                                       new Dimension(Short.MAX_VALUE,
                                                     Short.MAX_VALUE)));
        p = new JPanel();
        p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
        p.add(m_statusField);
        p.add(new Box.Filler(new Dimension(0, 0),
                             new Dimension(Short.MAX_VALUE, 0),
                             new Dimension(Short.MAX_VALUE, Short.MAX_VALUE)));
        p.add(m_connectButton);
        p.add(new Box.Filler(new Dimension(8, 0),
                             new Dimension(8, 0),
                             new Dimension(8, Short.MAX_VALUE)));
        p.add(m_closeButton);
        clientPanel.add(p);

        return clientPanel;
    }

    private JPanel getTransferPanel()
    {
        JPanel transferPanel = new JPanel();
        transferPanel.setLayout(new BoxLayout(transferPanel, BoxLayout.Y_AXIS));
        transferPanel.add(new JLabel("Transfers:"));
        transferPanel.add(new Box.Filler(new Dimension(0, 0),
                                         new Dimension(0, Short.MAX_VALUE),
                                         new Dimension(0, Short.MAX_VALUE)));
        return transferPanel;
    }

    private JPanel getServerPanel()
    {
        return new JPanel();
    }
}