import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;

public class GameWindow extends JFrame implements ActionListener{

    JPanel mainPanel;
    JButton signinDecisionButton;
    JButton registerDecisionButton;
    JPasswordField passwordInput;
    JTextField usernameInput;

    public GameWindow() {
        mainPanel = new JPanel();
        startupWindow(mainPanel);
    }

    public void startupWindow(JPanel mainPanel) {
        mainPanel = new JPanel();
        mainPanel.setLayout(new GridLayout(3,4));
        JPanel decisionPanel = new JPanel();
        decisionPanel.setLayout(new BorderLayout());
        signinDecisionButton = new JButton("Sign in");
        signinDecisionButton.setActionCommand("signinDecision");
        signinDecisionButton.addActionListener(this);
        decisionPanel.add(signinDecisionButton, BorderLayout.NORTH);
        JLabel or = new JLabel("OR");
        or.setHorizontalAlignment(JLabel.CENTER);
        or.setVerticalAlignment(JLabel.CENTER);
        decisionPanel.add(or, BorderLayout.CENTER);
        registerDecisionButton = new JButton("Register");
        registerDecisionButton.setActionCommand("registerDecision");
        registerDecisionButton.addActionListener(this);
        decisionPanel.add(registerDecisionButton, BorderLayout.SOUTH);
        mainPanel.add(new JPanel());
        mainPanel.add(new JPanel());
        mainPanel.add(new JPanel());
        mainPanel.add(new JPanel());
        mainPanel.add(decisionPanel);
        mainPanel.add(new JPanel());
        mainPanel.add(new JPanel());
        this.add(mainPanel, BorderLayout.CENTER);
    }

    public void signinWindow(JPanel mainPanel) {
        mainPanel = new JPanel();
        mainPanel.setLayout(new GridLayout(3, 4));
        JPanel signinPanel = new JPanel();
        signinPanel.setLayout(new BorderLayout());
        JPanel usernamePanel = new JPanel();
        usernamePanel.setLayout(new GridLayout(1, 2));
        JLabel usernameLabel = new JLabel();
        usernameLabel.setText("Enter username: ");
        usernamePanel.add(usernameLabel);
        usernameInput = new JTextField();
        usernameInput.setColumns(13);
        usernameInput.setActionCommand("usernameInputted");
        usernameInput.addActionListener(this);
        usernamePanel.add(usernameInput);
        signinPanel.add(usernamePanel, BorderLayout.NORTH);
        JPanel passwordPanel = new JPanel();
        passwordPanel.setLayout(new GridLayout(1, 2));
        JLabel passwordLabel = new JLabel();
        passwordLabel.setText("Enter password: ");
        passwordPanel.add(passwordLabel);
        passwordInput = new JPasswordField();
        passwordInput.setColumns(13);
        passwordInput.setActionCommand("passwordInputted");
        passwordInput.addActionListener(this);
        passwordPanel.add(passwordInput);
        signinPanel.add(passwordPanel, BorderLayout.SOUTH);
        JPanel signinButtonPanel = new JPanel();
        signinButtonPanel.setLayout(new BorderLayout());
        JButton signinButton = new JButton();
        signinButton.setText("Sign In");
        signinButton.setActionCommand("signin");
        signinButton.addActionListener(this);
        signinButtonPanel.add(signinButton, BorderLayout.NORTH);
        mainPanel.add(new JPanel());
        mainPanel.add(new JPanel());
        mainPanel.add(new JPanel());
        mainPanel.add(new JPanel());
        mainPanel.add(signinPanel);
        mainPanel.add(new JPanel());
        mainPanel.add(new JPanel());
        mainPanel.add(signinButtonPanel);
        mainPanel.add(new JPanel());
        this.add(mainPanel, BorderLayout.CENTER);
    }

    public void actionPerformed(ActionEvent e) {
        System.out.println(e.getActionCommand());
        if (e.getActionCommand().equals("signinDecision")) {
            System.out.println("CHANGE TO SIGN IN");
            signinWindow(mainPanel);
        }
    }

}