package me.lukecarr.gameoflife;

import javax.swing.*;
import java.awt.*;
import java.util.Timer;
import java.util.List;
import java.util.ArrayList;
import java.util.TimerTask;
import java.util.stream.Stream;

public class GameOfLife {

    private static final JPanel[][] cells = new JPanel[40][40];

    public static void main(String[] args) {
        JFrame frame = new JFrame("Game of Life");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(800, 800);
        frame.setLayout(new GridLayout(40, 40));
        Container container = frame.getContentPane();
        for(int x = 0; x < 40; x++) {
            for(int y = 0; y < 40; y++) {
                cells[x][y] = new JPanel();
                cells[x][y].setBackground(Color.WHITE);
            }
        }

        Timer timer = new Timer();
        timer.schedule(new TimerTask() {
            @Override
            public void run() {
                for(int x = 0; x < 40; x++) {
                    for(int y = 0; y < 40; y++) {
                        JPanel cell = cells[x][y];
                        Stream<JPanel> neighbours = getNeighbours(x, y);
                        long aliveNeighbours = neighbours.filter(neighbour -> neighbour.getBackground() == Color.BLACK).count();
                    }
                }
            }
        }, 0, 500);

        frame.pack();
        frame.setLocationByPlatform(true);
        frame.setVisible(true);
    }

    public static boolean isAlive(int x, int y) {
        return cells[x][y].getBackground() == Color.BLACK;
    }

    public static Stream<JPanel> getNeighbours(int x, int y) {
        List<JPanel> neighbours = new ArrayList<>();
        for(int x1 = x-1; x1 < x+2; x1++) {
            for(int y1 = y-1; y1< y+2; y1++) {
                if(x1 < 0 || x1 > 39 || y1 < 0 || y1 > 39) {
                    continue;
                }
                neighbours.add(cells[x1][y1]);
            }
        }
        return neighbours.stream();
    }

}