package com.flappybird.view;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

import javax.swing.JPanel;
import javax.swing.Timer;

import com.flappybird.controller.Controller;
import com.flappybird.model.Bird;
import com.flappybird.model.Tube;
import com.flappybird.model.TubeColumn;
import com.flappybird.model.proxy.ProxyImage;
/**
 * Class utama yang berisi bagaimana game ini dijalankan.
 */
public class Game extends JPanel implements ActionListener {

 private static final long serialVersionUID = 1L;
 private boolean isRunning = false;
    private ProxyImage proxyImage;
    private Image background;
    private Bird bird;
    private TubeColumn tubeColumn;
    private int highScore = 0;

    /**
     * Constructor
     */
    public Game() {

        proxyImage = new ProxyImage("/res/background1.png");
        background = proxyImage.loadImage().getImage();
        setFocusable(true);
        setDoubleBuffered(false);
        addKeyListener(new GameKeyAdapter());
        Timer timer = new Timer(15, this);
        timer.start();
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        Toolkit.getDefaultToolkit().sync();
        if (isRunning) {
            bird.tick();
            tubeColumn.tick();
            checkColision();
        }

        repaint();
    }

    @Override
    public void paint(Graphics g) {
        Graphics2D g2 = (Graphics2D) g;
        g2.drawImage(background, 0, 0, null);
        if (isRunning) {
            this.bird.render(g2, this);
            this.tubeColumn.render(g2, this);
            g2.setColor(Color.black);
            g.setFont(new Font("Arial", 1, 20));
            g2.drawString("Your Score", Window.WIDTH/2-60, 20);
            g2.drawString(""+ this.tubeColumn.getPoints(), Window.WIDTH/2-15, 40);
        } else {
            g2.setColor(Color.black);
            g.setFont(new Font("Arial", 1, 70));
            g2.drawString("FLAPPY BIRD", Window.WIDTH / 2 - 240, Window.HEIGHT / 2 - 50);
            g.setFont(new Font("Arial", 1, 20));
            g2.drawString("Press Space to Make the Bird Jump", Window.WIDTH / 2 - 175, Window.HEIGHT / 2 + 100);
            g2.drawString("Press Enter to Start the Game", Window.WIDTH / 2 - 150, Window.HEIGHT / 2 + 125);
            g2.drawString("High Score", Window.WIDTH/2-60, 20);
            g2.drawString(""+ highScore, Window.WIDTH/2-20, 40);
            g.setFont(new Font("Arial", 1, 5));
        }

        g.dispose();
    }

    /**
     * Fungsi yang dijalankan ketika user ingin bermain kembali
     */
    private void restartGame() {
        if (!isRunning) {
            this.isRunning = true;
            this.bird = new Bird(Window.WIDTH / 2, Window.HEIGHT / 2);
            this.tubeColumn = new TubeColumn();
        }
    }

    /**
     * Fungsi yang dijalankan ketika Bird terkena pipa/Game over
     */
    private void endGame() {
        this.isRunning = false;
        if (this.tubeColumn.getPoints() > highScore) {
            highScore = this.tubeColumn.getPoints();
        }
        this.tubeColumn.setPoints(0);

    }

    /**
     * Fungsi yang dijalankan apakah terjadi tabrakan antara Bird dan Tubes
     */
    private void checkColision() {
        Rectangle rectBird = this.bird.getBounds();
        Rectangle rectTube;

        for (int i = 0; i < this.tubeColumn.getTubes().size(); i++) {
            Tube tempTube = this.tubeColumn.getTubes().get(i);
            rectTube = tempTube.getBounds();
            if (rectBird.intersects(rectTube)) {
                endGame();
            }
        }
    }

    // Key
    private class GameKeyAdapter extends KeyAdapter {

        private final Controller controller;

        public GameKeyAdapter() {
            controller = new Controller();
        }

        @Override
        public void keyPressed(KeyEvent e) {
            if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                restartGame();
            }
        }

        @Override
        public void keyReleased(KeyEvent e) {
            if (isRunning) {
                controller.controllerReleased(bird, e);
            }
        }
    }
}