import * as THREE from "three";
import { OrbitControls } from "three/examples/jsm/controls/OrbitControls.js";

const scene = new THREE.Scene();
scene.background = new THREE.Color("white");

const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.z = 5;

const renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);

const geometry = new THREE.TorusKnotGeometry(1, 0.4, 100, 16);
const material = new THREE.MeshStandardMaterial({ color: "#ccc", roughness: 0.5 });
const mesh = new THREE.Mesh(geometry, material);
scene.add(mesh);

scene.add(new THREE.AmbientLight(0xffffff, 0.6));
const pointLight = new THREE.PointLight(0xffffff, 1);
pointLight.position.set(5, 5, 5);
scene.add(pointLight);

const controls = new OrbitControls(camera, renderer.domElement);
controls.enableDamping = true;

const raycaster = new THREE.Raycaster();
const mouse = new THREE.Vector2();
let isSelected = false;

window.addEventListener("click", (event) => {
  mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
  mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;

  raycaster.setFromCamera(mouse, camera);
  const intersects = raycaster.intersectObject(mesh);

  if (intersects.length > 0) {
    isSelected = !isSelected;
    updateAppearance();
  }
});

function updateAppearance() {
  if (isSelected) {
    mesh.scale.set(1.2, 1.2, 1.2);
    mesh.material.color.set("#3498db");
    mesh.material.emissive.set("#1e3799");
    mesh.material.emissiveIntensity = 0.5;
  } else {
    mesh.scale.set(1, 1, 1);
    mesh.material.color.set("#ccc");
    mesh.material.emissive.set("#000");
    mesh.material.emissiveIntensity = 0;
  }
}

function animate() {
  requestAnimationFrame(animate);
  controls.update();
  mesh.rotation.y += 0.01;
  renderer.render(scene, camera);
}
animate();

window.addEventListener("resize", () => {
    camera.aspect = window.innerWidth / window.innerHeight;
    camera.updateProjectionMatrix();
    renderer.setSize(window.innerWidth, window.innerHeight);
});