import javax.swing.JPasswordField;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.Component;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

/*
  Author:  James Tam
  Version: March 29, 2021
*/

public class MyFrame extends JFrame implements ActionListener
{
    private static final String THE_PASSWORD = "123456";
    private JPasswordField aPasswordField;

    public MyFrame()
    {
        JLabel aLabel = new JLabel("Enter password");
        aPasswordField = new JPasswordField();
        aPasswordField.addActionListener(this);
        aPasswordField.setBounds(50,70,100,20);
        aLabel.setBounds(50,50,100,20);
        setLayout(null);
        add(aPasswordField);
        add(aLabel);
        setBounds(100,100,400,300);
        setVisible(true);
    }

    public void actionPerformed(ActionEvent e)
    {
        final int MATCH = 0;
        Component aComponent = (Component) e.getSource();
        if (aComponent instanceof JPasswordField)
        {
            JPasswordField aPasswordField = (JPasswordField) aComponent;
            String passWordEntered = new String(aPasswordField.getPassword());
            if (passWordEntered.compareTo(THE_PASSWORD) == MATCH)
            {
                System.out.println("Match");
                loginSuccess();
            }
            else
            {
                System.out.println("Wrong");
                loginFailed();
            }
	}
    }

    public void loginFailed()
    {
        final int DELAY = 3000;
	setTitle("Password incorrect");
	try 
        {
	    Thread.sleep(DELAY); 
	}
	catch (InterruptedException ex)  
        { 
	    System.out.println("Pausing of program was interrupted");
	}
        setTitle("");
    }

    public void loginSuccess()
    {
        final int DELAY = 3000;
	setTitle("Login successful! Your reward is coming.");
	try 
        {
	    Thread.sleep(DELAY); 
	}
	catch (InterruptedException ex)  
        { 
	    System.out.println("Pausing of program was interrupted");
	}
        setVisible(false);
        dispose();
    }
}