/**
 * Robot — Codels 3D model library
 * License: CC0-1.0 · Units: meters · Y-up · Front: +Z · Origin: center of the base (y = 0)
 * Triangles: 1,272 · Size (W × H × D): 1.05 × 1.70 × 0.47 m
 *
 * Usage:
 *   import { createRobot } from './robot.js';
 *   
 *   const model = createRobot();
 *   model.position.set(0, 0, 0);
 *   scene.add(model);
 */
import * as THREE from 'three';

const deg = THREE.MathUtils.degToRad;

export function createRobot() {
  const root = new THREE.Group();
  root.name = 'Robot';

  // Materials
  const shellMat = new THREE.MeshStandardMaterial({ name: 'shell', color: 0x5bb6d3, roughness: 0.4, metalness: 0.25, flatShading: true });
  const jointMat = new THREE.MeshStandardMaterial({ name: 'joint', color: 0x3d4452, roughness: 0.5, metalness: 0.5, flatShading: true });
  const chromeMat = new THREE.MeshStandardMaterial({ name: 'chrome', color: 0xc9d1da, roughness: 0.25, metalness: 0.8, flatShading: true });
  const screenMat = new THREE.MeshStandardMaterial({ name: 'screen', color: 0x141a26, roughness: 0.2, flatShading: true });
  const glowMat = new THREE.MeshStandardMaterial({ name: 'glow', color: 0x8af7ff, roughness: 0.3, emissive: 0x8af7ff, emissiveIntensity: 0.9, flatShading: true });
  const lightMat = new THREE.MeshStandardMaterial({ name: 'light', color: 0xff6a5c, roughness: 0.3, emissive: 0xff5040, emissiveIntensity: 0.9, flatShading: true });
  const limeMat = new THREE.MeshStandardMaterial({ name: 'lime', color: 0x9cf06b, roughness: 0.3, emissive: 0x8ef05c, emissiveIntensity: 0.8, flatShading: true });

  // Shared geometries
  const cylinderGeo = new THREE.CylinderGeometry(0.055, 0.055, 0.16, 8);
  const boxGeo = new THREE.BoxGeometry(0.17, 0.17, 0.19);
  const boxGeo2 = new THREE.BoxGeometry(0.21, 0.08, 0.3);
  const boxGeo3 = new THREE.BoxGeometry(0.19, 0.03, 0.05);
  const boxGeo4 = new THREE.BoxGeometry(0.06, 0.06, 0.012);
  const boxGeo5 = new THREE.BoxGeometry(0.26, 0.018, 0.012);
  const cylinderGeo2 = new THREE.CylinderGeometry(0.04, 0.04, 0.03, 8);
  const sphereGeo = new THREE.SphereGeometry(0.085, 8, 6);
  const boxGeo6 = new THREE.BoxGeometry(0.13, 0.22, 0.14);
  const cylinderGeo3 = new THREE.CylinderGeometry(0.045, 0.045, 0.08, 8);
  const boxGeo7 = new THREE.BoxGeometry(0.12, 0.16, 0.13);
  const torusGeo = new THREE.TorusGeometry(0.075, 0.028, 5, 10, 4.5553);
  const cylinderGeo4 = new THREE.CylinderGeometry(0.05, 0.05, 0.012, 10);
  const cylinderGeo5 = new THREE.CylinderGeometry(0.075, 0.075, 0.05, 10);
  const cylinderGeo6 = new THREE.CylinderGeometry(0.04, 0.04, 0.02, 8);

  // Parts
  const legL = new THREE.Group();
  legL.name = 'legL';
  legL.position.set(0.15, 0.42, 0);
  root.add(legL);
  const thighL = new THREE.Mesh(cylinderGeo, jointMat);
  thighL.name = 'thighL';
  thighL.position.set(0, -0.08, 0);
  legL.add(thighL);
  const shinL = new THREE.Mesh(boxGeo, shellMat);
  shinL.name = 'shinL';
  shinL.position.set(0, -0.24, 0);
  legL.add(shinL);
  const footL = new THREE.Mesh(boxGeo2, jointMat);
  footL.name = 'footL';
  footL.position.set(0, -0.38, 0.03);
  legL.add(footL);
  const toeCapL = new THREE.Mesh(boxGeo3, chromeMat);
  toeCapL.name = 'toeCapL';
  toeCapL.position.set(0, -0.36, 0.165);
  legL.add(toeCapL);
  const legR = new THREE.Group();
  legR.name = 'legR';
  legR.position.set(-0.15, 0.42, 0);
  root.add(legR);
  const thighR = new THREE.Mesh(cylinderGeo, jointMat);
  thighR.name = 'thighR';
  thighR.position.set(0, -0.08, 0);
  legR.add(thighR);
  const shinR = new THREE.Mesh(boxGeo, shellMat);
  shinR.name = 'shinR';
  shinR.position.set(0, -0.24, 0);
  legR.add(shinR);
  const footR = new THREE.Mesh(boxGeo2, jointMat);
  footR.name = 'footR';
  footR.position.set(0, -0.38, 0.03);
  legR.add(footR);
  const toeCapR = new THREE.Mesh(boxGeo3, chromeMat);
  toeCapR.name = 'toeCapR';
  toeCapR.position.set(0, -0.36, 0.165);
  legR.add(toeCapR);
  const body = new THREE.Group();
  body.name = 'body';
  root.add(body);
  const chest = new THREE.Mesh(new THREE.BoxGeometry(0.6, 0.52, 0.42), shellMat);
  chest.name = 'chest';
  chest.position.set(0, 0.66, 0);
  body.add(chest);
  const waist = new THREE.Mesh(new THREE.BoxGeometry(0.5, 0.06, 0.36), jointMat);
  waist.name = 'waist';
  waist.position.set(0, 0.4, 0);
  body.add(waist);
  const chestPanel = new THREE.Mesh(new THREE.BoxGeometry(0.36, 0.24, 0.02), screenMat);
  chestPanel.name = 'chestPanel';
  chestPanel.position.set(0, 0.7, 0.215);
  body.add(chestPanel);
  const statusRed = new THREE.Mesh(boxGeo4, lightMat);
  statusRed.name = 'statusRed';
  statusRed.position.set(-0.1, 0.74, 0.227);
  body.add(statusRed);
  const statusGreen = new THREE.Mesh(boxGeo4, limeMat);
  statusGreen.name = 'statusGreen';
  statusGreen.position.set(0, 0.74, 0.227);
  body.add(statusGreen);
  const statusBlue = new THREE.Mesh(boxGeo4, glowMat);
  statusBlue.name = 'statusBlue';
  statusBlue.position.set(0.1, 0.74, 0.227);
  body.add(statusBlue);
  const grille1 = new THREE.Mesh(boxGeo5, chromeMat);
  grille1.name = 'grille1';
  grille1.position.set(0, 0.65, 0.227);
  body.add(grille1);
  const grille2 = new THREE.Mesh(boxGeo5, chromeMat);
  grille2.name = 'grille2';
  grille2.position.set(0, 0.615, 0.227);
  body.add(grille2);
  const grille3 = new THREE.Mesh(boxGeo5, chromeMat);
  grille3.name = 'grille3';
  grille3.position.set(0, 0.58, 0.227);
  body.add(grille3);
  const boltL = new THREE.Mesh(cylinderGeo2, chromeMat);
  boltL.name = 'boltL';
  boltL.position.set(0.31, 0.54, 0);
  boltL.rotation.set(0, 0, deg(90));
  body.add(boltL);
  const boltR = new THREE.Mesh(cylinderGeo2, chromeMat);
  boltR.name = 'boltR';
  boltR.position.set(-0.31, 0.54, 0);
  boltR.rotation.set(0, 0, deg(90));
  body.add(boltR);
  const neck = new THREE.Mesh(new THREE.CylinderGeometry(0.08, 0.1, 0.08, 8), jointMat);
  neck.name = 'neck';
  neck.position.set(0, 0.96, 0);
  body.add(neck);
  const armL = new THREE.Group();
  armL.name = 'armL';
  armL.position.set(0.36, 0.9, 0);
  armL.rotation.set(0, 0, deg(9));
  root.add(armL);
  const shoulderL = new THREE.Mesh(sphereGeo, jointMat);
  shoulderL.name = 'shoulderL';
  shoulderL.position.set(0.02, 0, 0);
  armL.add(shoulderL);
  const upperArmL = new THREE.Mesh(boxGeo6, shellMat);
  upperArmL.name = 'upperArmL';
  upperArmL.position.set(0.03, -0.15, 0);
  armL.add(upperArmL);
  const elbowL = new THREE.Mesh(cylinderGeo3, jointMat);
  elbowL.name = 'elbowL';
  elbowL.position.set(0.03, -0.3, 0);
  armL.add(elbowL);
  const forearmL = new THREE.Mesh(boxGeo7, shellMat);
  forearmL.name = 'forearmL';
  forearmL.position.set(0.03, -0.41, 0);
  armL.add(forearmL);
  const clawL = new THREE.Mesh(torusGeo, chromeMat);
  clawL.name = 'clawL';
  clawL.position.set(0.03, -0.57, 0);
  clawL.rotation.set(0, deg(90), deg(220));
  armL.add(clawL);
  const armR = new THREE.Group();
  armR.name = 'armR';
  armR.position.set(-0.36, 0.9, 0);
  armR.rotation.set(0, 0, deg(-9));
  root.add(armR);
  const shoulderR = new THREE.Mesh(sphereGeo, jointMat);
  shoulderR.name = 'shoulderR';
  shoulderR.position.set(-0.02, 0, 0);
  armR.add(shoulderR);
  const upperArmR = new THREE.Mesh(boxGeo6, shellMat);
  upperArmR.name = 'upperArmR';
  upperArmR.position.set(-0.03, -0.15, 0);
  armR.add(upperArmR);
  const elbowR = new THREE.Mesh(cylinderGeo3, jointMat);
  elbowR.name = 'elbowR';
  elbowR.position.set(-0.03, -0.3, 0);
  armR.add(elbowR);
  const forearmR = new THREE.Mesh(boxGeo7, shellMat);
  forearmR.name = 'forearmR';
  forearmR.position.set(-0.03, -0.41, 0);
  armR.add(forearmR);
  const clawR = new THREE.Mesh(torusGeo, chromeMat);
  clawR.name = 'clawR';
  clawR.position.set(-0.03, -0.57, 0);
  clawR.rotation.set(0, deg(90), deg(220));
  armR.add(clawR);
  const head = new THREE.Group();
  head.name = 'head';
  head.position.set(0, 0.94, 0);
  root.add(head);
  const headShell = new THREE.Mesh(new THREE.BoxGeometry(0.56, 0.42, 0.44), shellMat);
  headShell.name = 'headShell';
  headShell.position.set(0, 0.23, 0);
  head.add(headShell);
  const faceScreen = new THREE.Mesh(new THREE.BoxGeometry(0.46, 0.3, 0.02), screenMat);
  faceScreen.name = 'faceScreen';
  faceScreen.position.set(0, 0.23, 0.225);
  head.add(faceScreen);
  const eyeL = new THREE.Mesh(cylinderGeo4, glowMat);
  eyeL.name = 'eyeL';
  eyeL.position.set(0.11, 0.265, 0.237);
  eyeL.rotation.set(deg(90), 0, 0);
  eyeL.scale.set(0.85, 1, 1.1);
  head.add(eyeL);
  const eyeR = new THREE.Mesh(cylinderGeo4, glowMat);
  eyeR.name = 'eyeR';
  eyeR.position.set(-0.11, 0.265, 0.237);
  eyeR.rotation.set(deg(90), 0, 0);
  eyeR.scale.set(0.85, 1, 1.1);
  head.add(eyeR);
  const smile = new THREE.Mesh(new THREE.TorusGeometry(0.065, 0.014, 4, 8, Math.PI), glowMat);
  smile.name = 'smile';
  smile.position.set(0, 0.205, 0.237);
  smile.rotation.set(0, 0, deg(180));
  smile.scale.set(1, 0.7, 0.4);
  head.add(smile);
  const earL = new THREE.Mesh(cylinderGeo5, jointMat);
  earL.name = 'earL';
  earL.position.set(0.3, 0.23, 0);
  earL.rotation.set(0, 0, deg(90));
  head.add(earL);
  const earLightL = new THREE.Mesh(cylinderGeo6, glowMat);
  earLightL.name = 'earLightL';
  earLightL.position.set(0.33, 0.23, 0);
  earLightL.rotation.set(0, 0, deg(90));
  head.add(earLightL);
  const earR = new THREE.Mesh(cylinderGeo5, jointMat);
  earR.name = 'earR';
  earR.position.set(-0.3, 0.23, 0);
  earR.rotation.set(0, 0, deg(90));
  head.add(earR);
  const earLightR = new THREE.Mesh(cylinderGeo6, glowMat);
  earLightR.name = 'earLightR';
  earLightR.position.set(-0.33, 0.23, 0);
  earLightR.rotation.set(0, 0, deg(90));
  head.add(earLightR);
  const headBand = new THREE.Mesh(new THREE.BoxGeometry(0.57, 0.04, 0.45), jointMat);
  headBand.name = 'headBand';
  headBand.position.set(0, 0.4, 0);
  head.add(headBand);
  const antenna = new THREE.Group();
  antenna.name = 'antenna';
  antenna.position.set(0.06, 0.44, -0.04);
  antenna.rotation.set(0, 0, deg(-8));
  head.add(antenna);
  const antennaBase = new THREE.Mesh(new THREE.CylinderGeometry(0.05, 0.06, 0.04, 8), jointMat);
  antennaBase.name = 'antennaBase';
  antennaBase.position.set(0, 0.02, 0);
  antenna.add(antennaBase);
  const antennaRod = new THREE.Mesh(new THREE.CylinderGeometry(0.012, 0.012, 0.22, 6), chromeMat);
  antennaRod.name = 'antennaRod';
  antennaRod.position.set(0, 0.15, 0);
  antenna.add(antennaRod);
  const antennaLight = new THREE.Mesh(new THREE.SphereGeometry(0.045, 8, 6), lightMat);
  antennaLight.name = 'antennaLight';
  antennaLight.position.set(0, 0.28, 0);
  antenna.add(antennaLight);

  root.traverse((o) => {
    if (o.isMesh) {
      o.castShadow = true;
      o.receiveShadow = true;
    }
  });
  return root;
}

export default createRobot;