import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

public class Login {

    public static JFrame frame = new JFrame("Login System V.01");
    public static JPanel panel = new JPanel();
    public static JLabel username_label = new JLabel("Username:");
    public static JLabel password_label = new JLabel("Password:");
    public static JButton login_button = new JButton("Login");
    public static JTextField username_textfield = new JTextField();
    public static JPasswordField password_field = new JPasswordField(10);


    public static void main(String [] args) {
        Login_Interface();
    }

    public static void Login_Interface() {

        frame.add(panel);
        panel.setSize(200,200);
        panel.setLayout(null);
        panel.add(login_button);
        login_button.setBounds(80,115,50,35);
        panel.add(username_label);
        username_label.setBounds(20,30,70,70);
        panel.add(password_label);
        password_label.setBounds(20,60,70,70);
        panel.add(username_textfield);
        username_textfield.setBounds(90, 56, 60, 20);
        panel.add(password_field);
        password_field.setBounds(90, 85, 60, 20);
        frame.setSize(200, 200);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
        frame.setLocationRelativeTo(null);
        panel.setVisible(true);
        login_button.addActionListener(new ActionListener() {


            public void actionPerformed(ActionEvent e) {
                String user_name = username_textfield.getText();
                String pass_word = password_field.getText();
                login_system(user_name,pass_word);

            }

        });

    }

    public static void login_system(String user, String pass) {

        if((user.equalsIgnoreCase("Alex")) && pass.equalsIgnoreCase("admin")) {
            JOptionPane.showMessageDialog(null, "Logged in succesfully!");
            AdminLogin();
            frame.setVisible(false);
        } else {
            JOptionPane.showMessageDialog(null, "Wrong Username/Password!");
        }
    }
    public static void AdminLogin() {
        JFrame admin_frame = new JFrame("Admin Menu");
        JPanel admin_panel = new JPanel();
        JLabel admin_Label_1 = new JLabel();
        admin_frame.setLocationRelativeTo(null);
        admin_frame.add(admin_panel);
        admin_panel.add(admin_Label_1);
        admin_frame.setVisible(true);
        admin_frame.setResizable(false);
        admin_frame.setSize(200, 200);
        admin_frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}