import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JPanel;

import java.awt.Font;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class GuessingGame extends JFrame {
    private static final long serialVersionUID = 1L;
    private JLabel lblOutput;
    private int theNumber;
    private JTextField txtGuess;
    private int numberOfTries = 8;
    private JButton btnPlayAgain;
    private JButton btnGuess;

    public void checkGuess() {
        btnPlayAgain.setVisible(false);
        String guessText = txtGuess.getText();
        txtGuess.setText("");// Empties the contents of the text field.
        String message = "";
        try {
            int guess = Integer.parseInt(guessText);
            if (numberOfTries == 0) {
                btnGuess.setVisible(false);
                txtGuess.setVisible(false);
                message = "You Lost! A new game has begun and you have 8 guesses remaining.";
                btnPlayAgain.setVisible(true);
            }
            else if (guess < theNumber) {
                message = guess + " is too low. Try again. You have " + numberOfTries + " tries left!";
            }
            else if (guess > theNumber) {
                message = guess + " is too high. Try again. You have " + numberOfTries + " tries left!";
            }
            else {
                btnGuess.setVisible(false);
                txtGuess.setVisible(false);
                message = guess + " is correct. Let's play again!";
                btnPlayAgain.setVisible(true);
            }
        } catch (java.lang.NumberFormatException e) {
            message = "Enter a whole number between 1 and 10.";
        } finally {
            lblOutput.setText(message);
            txtGuess.requestFocus();
            txtGuess.selectAll();
        }
        decrementNumberOfTries();
    }

    public void newGame() {
        numberOfTries = 8;
        theNumber = (int) (Math.random() * 10 + 1);
        btnGuess.setVisible(true);
        txtGuess.setVisible(true);
        btnPlayAgain.setVisible(false);
        lblOutput.setText("Enter a number above and click Guess!");
    }

    public void decrementNumberOfTries() {
        --numberOfTries;
    }

    public GuessingGame() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setTitle("Tim's Hi-Lo Guessing Game");
        getContentPane().setLayout(null);

        JLabel lblTitle = new JLabel("Tim's Hi-Lo Guessing Game");
        lblTitle.setFont(new Font("Tahoma", Font.BOLD, 15));
        lblTitle.setHorizontalAlignment(SwingConstants.CENTER);
        lblTitle.setBounds(-10, 15, 436, 32);
        getContentPane().add(lblTitle);

        JLabel lblGuessANumber = new JLabel("Guess a number between 1 and 10:");
        lblGuessANumber.setBackground(new Color(240, 240, 240));
        lblGuessANumber.setHorizontalAlignment(SwingConstants.RIGHT);
        lblGuessANumber.setBounds(83, 57, 215, 13);
        getContentPane().add(lblGuessANumber);

        txtGuess = new JTextField();
        txtGuess.addActionListener((ActionEvent e) -> {
            checkGuess();
        });
        txtGuess.setHorizontalAlignment(SwingConstants.RIGHT);
        txtGuess.setBounds(239, 85, 27, 19);
        getContentPane().add(txtGuess);
        txtGuess.setColumns(10);

        this.btnGuess = new JButton("Guess!");
        btnGuess.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                checkGuess();
            }
        });
        btnGuess.setBounds(146, 84, 85, 21);
        getContentPane().add(btnGuess);

        lblOutput = new JLabel("Enter a number above and click Guess!");
        lblOutput.setHorizontalAlignment(SwingConstants.CENTER);
        lblOutput.setBounds(-40, 150, 500, 13);
        getContentPane().add(lblOutput);

        btnPlayAgain = new JButton("Play Again!");
        btnPlayAgain.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                newGame();
            }
        });
        btnPlayAgain.setBounds(146, 115, 141, 21);
        getContentPane().add(btnPlayAgain);
        btnPlayAgain.setVisible(false);

    }

    public static void main(String[] args) {
        GuessingGame theGame = new GuessingGame();
        theGame.newGame();
        theGame.setSize(new Dimension(450, 300));
        theGame.setVisible(true);

    }
}