/**
 * Tír na nÓg - Spatial Navigation
 * Logic for moving through the grid of rooms using doors and keys.
 */

document.addEventListener('DOMContentLoaded', () => {
    const world = document.getElementById('world');
    const doors = document.querySelectorAll('.door');
    const rooms = document.querySelectorAll('.room');

    let currentPos = { x: 0, y: 0 };
    const gridSize = { width: 2, height: 2 };

    /**
     * Updates the viewport position based on current x, y coordinates
     */
    function updateView() {
        const translateX = -currentPos.x * 100;
        const translateY = -currentPos.y * 100;
        world.style.transform = `translate(${translateX}vw, ${translateY}vh)`;

        // Update active class for rooms
        rooms.forEach(room => {
            const id = `room-${currentPos.x}-${currentPos.y}`;
            if (room.id === id) {
                room.classList.add('active');
            } else {
                room.classList.remove('active');
            }
        });

        console.log(`Moved to room: ${currentPos.x}, ${currentPos.y}`);
    }

    /**
     * Handles navigation to a specific target coordinate
     */
    function navigateTo(targetStr) {
        const [x, y] = targetStr.split(',').map(Number);
        if (!isNaN(x) && !isNaN(y)) {
            currentPos.x = x;
            currentPos.y = y;
            updateView();
        }
    }

    /**
     * Moves the position relative to current pos
     */
    function moveRelative(dx, dy) {
        const newX = currentPos.x + dx;
        const newY = currentPos.y + dy;

        if (newX >= 0 && newX < gridSize.width && newY >= 0 && newY < gridSize.height) {
            currentPos.x = newX;
            currentPos.y = newY;
            updateView();
        }
    }

    // Door Click Listeners
    doors.forEach(door => {
        door.addEventListener('click', (e) => {
            const target = e.target.getAttribute('data-target');
            navigateTo(target);
        });
    });

    // Keyboard Listeners (WASD + Arrows)
    document.addEventListener('keydown', (e) => {
        switch(e.key.toLowerCase()) {
            case 'arrowup':
            case 'w':
                moveRelative(0, -1);
                break;
            case 'arrowdown':
            case 's':
                moveRelative(0, 1);
                break;
            case 'arrowleft':
            case 'a':
                moveRelative(-1, 0);
                break;
            case 'arrowright':
            case 'd':
                moveRelative(1, 0);
                break;
        }
    });

    console.log('Tír na nÓg navigation initialized');
});