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

public class View {
    private Controller controller;
    private int antRader, antKolonner;
    private JFrame vindu;
    private JPanel hovedPanel, infoPanel, rutePanel;
    private JLabel tittel;
    private JButton spillKnapp;
    private JButton[][] celleKnapper;

    public View(Controller controller, int antRader, int antKolonner) {
        this.controller = controller;
        this.antRader = antRader;
        this.antKolonner = antKolonner;
        vindu = new JFrame("Game of life");
        hovedPanel = new JPanel(new BorderLayout(10, 10));
        infoPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 10, 10));
        rutePanel = new JPanel(new GridLayout(antRader, antKolonner));
        tittel = new JLabel("GAME OF LIFE");
        tittel.setFont(new Font("SansSerif", Font.PLAIN, 40));
        spillKnapp = new JButton("Start");
        celleKnapper = new JButton[antRader][antKolonner];
    }

    public void init() {
        try {
            UIManager.setLookAndFeel(
                UIManager.getCrossPlatformLookAndFeelClassName()
            );
        } catch (Exception e) {
            System.exit(1);
        }

        vindu.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        vindu.setPreferredSize(new Dimension(800, 1000));

        infoPanel.add(tittel);

        // Kortform for å opprette implementasjon av actionlistener
        spillKnapp.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                controller.spill();
            }
        });

        infoPanel.add(spillKnapp);

        // Oppretter alle celleknapper
        for (int i = 0; i < antRader; i++) {
            for (int j = 0; j < antKolonner; j++) {
                JButton knapp = new JButton();
                knapp.addActionListener(new StatusVeksler(i, j));
                celleKnapper[i][j] = knapp;
                rutePanel.add(knapp);
            }
        }

        controller.oppdaterCelleKnapper();

        hovedPanel.add(infoPanel, BorderLayout.NORTH);
        hovedPanel.add(rutePanel, BorderLayout.CENTER);

        vindu.add(hovedPanel);

        vindu.pack();
        vindu.setLocationRelativeTo(null);
        vindu.setVisible(true);
    }

    // Endrer tekst til en gitt knapp
    public void byttCelleKnappStatus(int rad, int kol, char tegn) {
        celleKnapper[rad][kol].setText(tegn + "");
    }

    // Metode for å endre tittel
    public void settTittel(String tekst) {
        tittel.setText(tekst);
    }

    public void settSpillKnappTekst(String tekst) {
        spillKnapp.setText(tekst);
    }

    private class StatusVeksler implements ActionListener {
        private int rad, kol;

        public StatusVeksler(int r, int k) {
            rad = r;
            kol = k;
        }

        @Override
        public void actionPerformed(ActionEvent e) {
            controller.byttCelleStatus(rad, kol);
        }
    }

}