import * as THREE from 'three';

import { GUI } from 'lil-gui';

import { TaperedLink } from './taperedLink.js';



const FACE_OPACITY = 0.3;
const CAMERA_K = 5;

// scene, lights and camera




const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );
const light = new THREE.PointLight(0xffffff, 2);
light.position.set(10, 10, 10);
scene.add(light);
const light2 = new THREE.PointLight(0xffffff, 2);
light2.position.set(-10, 5, 10);
scene.add(light);
const amblight = new THREE.AmbientLight(0xffffff, 0.5);
scene.add(amblight);

camera.position.set(0, 0, CAMERA_K / 2);

camera.lookAt(0, 0, 0);
//camera.position.z = 4;

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

renderer.localClippingEnabled = true;


document.body.appendChild( renderer.domElement );

const NODEC = 0x3293a9;
const BACKGROUNDC = 0xd4d4d4;
	
scene.background = new THREE.Color(BACKGROUNDC);
const material = new THREE.MeshStandardMaterial({ color: NODEC });


const params = {
    r1: 0.5,
    r2: 0.6,
    l: 3,
};

const gui = new GUI();

gui.add(params, "r1", 0.01, 1.5);
gui.add(params, "r2", 0.01, 1.5);
gui.add(params, "l", 0, 4);

function makeNode(material, pos, r) {
    const geometry = new THREE.SphereGeometry(1);
    const sphere = new THREE.Mesh(geometry, material);
    updateNode(sphere, pos, r);
    return sphere;
}

function updateNode(node, pos, r) {
    node.scale.copy(new THREE.Vector3(r, r, r));
    node.position.copy(pos);
}
    

const n1 = makeNode(material, new THREE.Vector3(-0.5 * params["l"], 0, 0), params["r1"]);
const n2 = makeNode(material, new THREE.Vector3(0.5 * params["l"], 0, 0), params["r2"])

//const tl = new TaperedLink(

scene.add(n1);
scene.add(n2);

function animate() {
    requestAnimationFrame(animate);

    updateNode(n1, new THREE.Vector3(-0.5 * params["l"], 0, 0), params["r1"]);
    updateNode(n2, new THREE.Vector3(0.5 * params["l"], 0, 0), params["r2"]);
    renderer.render(scene, camera);
}
animate();