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

public class GameView extends JFrame {
    private final Board board;
    private final int hexRadius = 60;
    private final int hexWidth = (int) (Math.sqrt(3) * hexRadius); // Largeur d'un hexagone
    private final int hexHeight = 2 * hexRadius;                  // Hauteur d'un hexagone

    public GameView(Board board) {
        this.board = board;
        setTitle("Dorfromantik - Plateau");
        setSize(800, 800);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);

        addMouseListener(new MouseAdapter() {
            @Override
            public void mouseClicked(MouseEvent e) {
                handleMouseClick(e.getPoint());
            }
        });
    }

    private void handleMouseClick(Point clickPoint) {
        // Calcul de la position en coordonnées hexagonales
        Point hexPosition = calculateHexCoordinates(clickPoint);

        // Vérifie si la position est libre
        if (!board.isPositionOccupied(hexPosition)) {
            Tile newTile = new Tile(Terrain.FORET); // Exemple : tuile de forêt
            board.addTile(hexPosition, newTile);
            repaint();
        }
    }

    @Override
    public void paint(Graphics g) {
        super.paint(g);
        Graphics2D g2d = (Graphics2D) g;

        // Dessiner toutes les tuiles placées
        for (Point position : board.getTiles().keySet()) {
            Tile tile = board.getTile(position);
            int x = calculateScreenX(position);
            int y = calculateScreenY(position);
            drawLargeHexagon(g2d, x, y, tile);
        }
    }

    private void drawLargeHexagon(Graphics2D g2d, int x, int y, Tile tile) {
        Polygon hexagon = new Polygon();
        for (int i = 0; i < 6; i++) {
            double angle = Math.toRadians(60 * i);
            int px = x + (int) (Math.cos(angle) * hexRadius);
            int py = y + (int) (Math.sin(angle) * hexRadius);
            hexagon.addPoint(px, py);
        }

        g2d.setColor(getColorForTerrain(tile.getTerrain()));
        g2d.fillPolygon(hexagon);
        g2d.setColor(Color.BLACK);
        g2d.drawPolygon(hexagon);
    }

    private Color getColorForTerrain(Terrain terrain) {
        return switch (terrain) {
            case MER -> Color.BLUE;
            case CHAMP -> Color.YELLOW;
            case FORET -> new Color(34, 139, 34);
            case PRE -> Color.GREEN;
            case MONTAGNE -> Color.GRAY;
        };
    }

    private Point calculateHexCoordinates(Point clickPoint) {
        int col = (int) Math.round((clickPoint.x - hexWidth / 2.0) / (1.5 * hexRadius));
        int row = (int) Math.round((clickPoint.y - hexHeight / 2.0 - (col % 2) * hexHeight / 4.0) / hexHeight);
        return new Point(col, row);
    }

    private int calculateScreenX(Point position) {
        int col = position.x;
        return (int) (col * 1.5 * hexRadius + hexWidth / 2.0);
    }

    private int calculateScreenY(Point position) {
        int col = position.x;
        int row = position.y;
        return (int) (row * hexHeight + (col % 2) * hexHeight / 2.0 + hexHeight / 2.0);
    }
}