/**
 * Nexus Base Room Template
 * 
 * This is the base template for all Nexus rooms.
 * Copy and customize this template for new room types.
 * 
 * Compatible with Three.js r128+
 */

(function() {
    'use strict';

    /**
     * Configuration object for the room
     */
    const CONFIG = {
        name: 'base_room',
        dimensions: {
            width: 20,
            height: 10,
            depth: 20
        },
        colors: {
            primary: '#1A1A2E',
            secondary: '#16213E',
            accent: '#D4AF37',      // Timmy's gold
            light: '#E0F7FA',       // Sovereignty crystal
        },
        lighting: {
            ambientIntensity: 0.3,
            accentIntensity: 0.8,
        }
    };

    /**
     * Create the base room
     * @returns {THREE.Group} The room group
     */
    function createBaseRoom() {
        const room = new THREE.Group();
        room.name = CONFIG.name;

        // Create floor
        createFloor(room);
        
        // Create walls
        createWalls(room);
        
        // Setup lighting
        setupLighting(room);
        
        // Add room features
        addFeatures(room);

        return room;
    }

    /**
     * Create the floor
     */
    function createFloor(room) {
        const floorGeo = new THREE.PlaneGeometry(
            CONFIG.dimensions.width, 
            CONFIG.dimensions.depth
        );
        const floorMat = new THREE.MeshStandardMaterial({
            color: CONFIG.colors.primary,
            roughness: 0.8,
            metalness: 0.2,
        });
        const floor = new THREE.Mesh(floorGeo, floorMat);
        floor.rotation.x = -Math.PI / 2;
        floor.receiveShadow = true;
        floor.name = 'floor';
        room.add(floor);
    }

    /**
     * Create the walls
     */
    function createWalls(room) {
        const wallMat = new THREE.MeshStandardMaterial({
            color: CONFIG.colors.secondary,
            roughness: 0.9,
            metalness: 0.1,
            side: THREE.DoubleSide
        });

        const { width, height, depth } = CONFIG.dimensions;

        // Back wall
        const backWall = new THREE.Mesh(
            new THREE.PlaneGeometry(width, height),
            wallMat
        );
        backWall.position.set(0, height / 2, -depth / 2);
        backWall.receiveShadow = true;
        room.add(backWall);

        // Left wall
        const leftWall = new THREE.Mesh(
            new THREE.PlaneGeometry(depth, height),
            wallMat
        );
        leftWall.position.set(-width / 2, height / 2, 0);
        leftWall.rotation.y = Math.PI / 2;
        leftWall.receiveShadow = true;
        room.add(leftWall);

        // Right wall
        const rightWall = new THREE.Mesh(
            new THREE.PlaneGeometry(depth, height),
            wallMat
        );
        rightWall.position.set(width / 2, height / 2, 0);
        rightWall.rotation.y = -Math.PI / 2;
        rightWall.receiveShadow = true;
        room.add(rightWall);
    }

    /**
     * Setup lighting
     */
    function setupLighting(room) {
        // Ambient light
        const ambientLight = new THREE.AmbientLight(
            CONFIG.colors.primary,
            CONFIG.lighting.ambientIntensity
        );
        ambientLight.name = 'ambient';
        room.add(ambientLight);

        // Accent light (Timmy's gold)
        const accentLight = new THREE.PointLight(
            CONFIG.colors.accent,
            CONFIG.lighting.accentIntensity,
            50
        );
        accentLight.position.set(0, 8, 0);
        accentLight.castShadow = true;
        accentLight.name = 'accent';
        room.add(accentLight);
    }

    /**
     * Add room features
     * Override this function in custom rooms
     */
    function addFeatures(room) {
        // Base room has minimal features
        // Custom rooms should override this
        
        // Example: Add a center piece
        const centerGeo = new THREE.SphereGeometry(1, 32, 32);
        const centerMat = new THREE.MeshStandardMaterial({
            color: CONFIG.colors.accent,
            emissive: CONFIG.colors.accent,
            emissiveIntensity: 0.3,
            roughness: 0.3,
            metalness: 0.8,
        });
        const centerPiece = new THREE.Mesh(centerGeo, centerMat);
        centerPiece.position.set(0, 2, 0);
        centerPiece.castShadow = true;
        centerPiece.name = 'centerpiece';
        room.add(centerPiece);

        // Animation hook
        centerPiece.userData.animate = function(time) {
            this.position.y = 2 + Math.sin(time) * 0.2;
            this.rotation.y = time * 0.5;
        };
    }

    /**
     * Dispose of room resources
     */
    function disposeRoom(room) {
        room.traverse((child) => {
            if (child.isMesh) {
                child.geometry.dispose();
                if (Array.isArray(child.material)) {
                    child.material.forEach(m => m.dispose());
                } else {
                    child.material.dispose();
                }
            }
        });
    }

    // Export
    if (typeof module !== 'undefined' && module.exports) {
        module.exports = { createBaseRoom, disposeRoom, CONFIG };
    } else if (typeof window !== 'undefined') {
        window.NexusRooms = window.NexusRooms || {};
        window.NexusRooms.base_room = createBaseRoom;
    }

    return { createBaseRoom, disposeRoom, CONFIG };
})();