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

import java.util.Date;
import java.text.SimpleDateFormat;

public class Login implements ActionListener
{

    Date todaysDate = new java.util.Date();
    SimpleDateFormat formatter = new SimpleDateFormat("EEE, dd-MM-yyyy HH:mm:ss");
    String formattedDate = formatter.format(todaysDate);
    private JFrame frame;
    private JTabbedPane jtp;
    private String name = "";
    private String pw = "";
    private boolean loggedIn = false;
    private JButton showDialogButton;
    int counter = 0;


    private JLabel user = new JLabel("Username (Staff ID)");
    private JLabel pass = new JLabel("Password");
    private JTextField username = new JTextField(20);
    private JPasswordField password = new JPasswordField(20);

    private Object[] stuff = {user, username, pass, password};



    public Login()
    {
        frame = new JFrame("Eternal Nights");
        //set up login

        //if proceed to login button is pressed... enter JDialog for login
        showDialogButton = new JButton("Proceed to Login");
        showDialogButton.addActionListener(this);

        frame.add(showDialogButton);
    /*code for the actual databse frame to be used by staff*/
        jtp = new JTabbedPane( );

        jtp.addTab("Sales", new JLabel("Sales Tab"));
        jtp.addTab("Drinks", new JLabel("Drinks Tab"));
        jtp.addTab("Members", new JLabel("Members Tab"));
        jtp.addTab("Orders", new JLabel("Orders Tab"));
        jtp.addTab("Staff", new JLabel("Staff Tab"));

        jtp.setVisible(false);



        //puts the proceed to login button on the pane
        frame.getContentPane().setLayout(new FlowLayout());
        frame.add(showDialogButton);

        // sets the jframe up
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.setPreferredSize(new Dimension(500, 300));
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true); //shows the jframe



        frame.add(jtp);

    }

    public void actionPerformed(ActionEvent e)
    {
        if(e.getSource()==showDialogButton)
        {
            String formattedDate = formatter.format(todaysDate);
            System.out.println(formattedDate + "Login called");
            while(loggedIn==false)
            {
                int result = JOptionPane.showConfirmDialog(null, stuff, "Login", JOptionPane.OK_CANCEL_OPTION, JOptionPane.PLAIN_MESSAGE);

                if(result == JOptionPane.OK_OPTION)
                {
                    String tempUser = new String(username.getText());
                    String tempPass = new String(password.getPassword());

                    if((tempUser.equals(name))&&(tempPass.equals(pw)))
                    {

                        loggedIn = true;
                        System.out.println(formattedDate + " - "  + tempUser + " logged in");
                        frame.remove(showDialogButton);
                        jtp.setVisible(true);
                        frame.setSize(500,299);
                        JOptionPane.showMessageDialog(frame, "Login Successful! Welcome " + tempUser + "!");
                        counter = 0;



                    }







                    else {


                        frame.remove(showDialogButton);
                        System.out.println(formattedDate + " - Login failed due to incorrect input");
                        frame.setSize(500,299);
                        JOptionPane.showMessageDialog(frame, "Login failed, either the Staff ID or password is incorrect");
                        counter ++;
                        System.out.println(counter + "login fails in a row");

                        if(counter == 3)
                        {
                        frame.remove(showDialogButton);
                        frame.setSize(500,299);
                        JOptionPane.showMessageDialog(frame, "Login failed, too many incorrect inputs - please restart the system");

                        System.out.println(formattedDate + " - Login failed due to incorrect input");

                        break;  //change to setting a new random password to login with then prompt to change password after




                        }
                            }
                }

                if(result == JOptionPane.CANCEL_OPTION)
                {
                JOptionPane.showMessageDialog(frame, "Login Cancelled");
                    frame.add(showDialogButton);
                    System.out.println(formattedDate + " - Login Cancelled");
                    frame.setSize(500,301);
                    break;



                }

            }
        }

    }

    public static void main(String[] args)
    {


    // schedule this for the event dispatch thread (edt)
        SwingUtilities.invokeLater(new Runnable()
        {
            public void run()
            {
                new Login();

            }
        });
    }
}