/**
 * Cow — Codels 3D model library
 * License: CC0-1.0 · Units: meters · Y-up · Front: +Z · Origin: center of the base (y = 0)
 * Triangles: 456 · Size (W × H × D): 0.93 × 1.41 × 1.56 m
 *
 * Usage:
 *   import { createCow } from './cow.js';
 *   
 *   const model = createCow();
 *   model.position.set(0, 0, 0);
 *   scene.add(model);
 */
import * as THREE from 'three';

const deg = THREE.MathUtils.degToRad;

export function createCow() {
  const root = new THREE.Group();
  root.name = 'Cow';

  // Materials
  const hideMat = new THREE.MeshStandardMaterial({ name: 'hide', color: 0xf3f0e8, roughness: 0.9, flatShading: true });
  const spotMat = new THREE.MeshStandardMaterial({ name: 'spot', color: 0x2e2a28, roughness: 0.9, flatShading: true });
  const pinkMat = new THREE.MeshStandardMaterial({ name: 'pink', color: 0xf0a6a0, roughness: 0.7, flatShading: true });
  const hornMat = new THREE.MeshStandardMaterial({ name: 'horn', color: 0xeee0bd, roughness: 0.6, flatShading: true });
  const hoofMat = new THREE.MeshStandardMaterial({ name: 'hoof', color: 0x4b3b34, roughness: 0.8, flatShading: true });
  const eyeMat = new THREE.MeshStandardMaterial({ name: 'eye', color: 0x1d1a19, roughness: 0.4, flatShading: true });

  // Shared geometries
  const boxGeo = new THREE.BoxGeometry(0.17, 0.36, 0.17);
  const boxGeo2 = new THREE.BoxGeometry(0.18, 0.08, 0.18);
  const boxGeo3 = new THREE.BoxGeometry(0.035, 0.05, 0.035);
  const boxGeo4 = new THREE.BoxGeometry(0.065, 0.05, 0.02);
  const boxGeo5 = new THREE.BoxGeometry(0.08, 0.095, 0.08);
  const boxGeo6 = new THREE.BoxGeometry(0.03, 0.03, 0.01);
  const boxGeo7 = new THREE.BoxGeometry(0.18, 0.09, 0.08);
  const boxGeo8 = new THREE.BoxGeometry(0.12, 0.05, 0.01);
  const boxGeo9 = new THREE.BoxGeometry(0.13, 0.07, 0.07);
  const boxGeo10 = new THREE.BoxGeometry(0.07, 0.15, 0.07);

  // Parts
  const legFL = new THREE.Group();
  legFL.name = 'legFL';
  legFL.position.set(0.21, 0.44, 0.33);
  root.add(legFL);
  const legFLUpper = new THREE.Mesh(boxGeo, hideMat);
  legFLUpper.name = 'legFLUpper';
  legFLUpper.position.set(0, -0.18, 0);
  legFL.add(legFLUpper);
  const legFLHoof = new THREE.Mesh(boxGeo2, hoofMat);
  legFLHoof.name = 'legFLHoof';
  legFLHoof.position.set(0, -0.4, 0);
  legFL.add(legFLHoof);
  const legFR = new THREE.Group();
  legFR.name = 'legFR';
  legFR.position.set(-0.21, 0.44, 0.33);
  root.add(legFR);
  const legFRUpper = new THREE.Mesh(boxGeo, spotMat);
  legFRUpper.name = 'legFRUpper';
  legFRUpper.position.set(0, -0.18, 0);
  legFR.add(legFRUpper);
  const legFRHoof = new THREE.Mesh(boxGeo2, hoofMat);
  legFRHoof.name = 'legFRHoof';
  legFRHoof.position.set(0, -0.4, 0);
  legFR.add(legFRHoof);
  const legBL = new THREE.Group();
  legBL.name = 'legBL';
  legBL.position.set(0.21, 0.44, -0.35);
  root.add(legBL);
  const legBLUpper = new THREE.Mesh(boxGeo, spotMat);
  legBLUpper.name = 'legBLUpper';
  legBLUpper.position.set(0, -0.18, 0);
  legBL.add(legBLUpper);
  const legBLHoof = new THREE.Mesh(boxGeo2, hoofMat);
  legBLHoof.name = 'legBLHoof';
  legBLHoof.position.set(0, -0.4, 0);
  legBL.add(legBLHoof);
  const legBR = new THREE.Group();
  legBR.name = 'legBR';
  legBR.position.set(-0.21, 0.44, -0.35);
  root.add(legBR);
  const legBRUpper = new THREE.Mesh(boxGeo, hideMat);
  legBRUpper.name = 'legBRUpper';
  legBRUpper.position.set(0, -0.18, 0);
  legBR.add(legBRUpper);
  const legBRHoof = new THREE.Mesh(boxGeo2, hoofMat);
  legBRHoof.name = 'legBRHoof';
  legBRHoof.position.set(0, -0.4, 0);
  legBR.add(legBRHoof);
  const body = new THREE.Group();
  body.name = 'body';
  root.add(body);
  const torso = new THREE.Mesh(new THREE.BoxGeometry(0.66, 0.54, 1), hideMat);
  torso.name = 'torso';
  torso.position.set(0, 0.66, 0);
  body.add(torso);
  const spotTopL = new THREE.Mesh(new THREE.BoxGeometry(0.256, 0.306, 0.34), spotMat);
  spotTopL.name = 'spotTopL';
  spotTopL.position.set(0.208, 0.783, 0.09);
  body.add(spotTopL);
  const spotSideR = new THREE.Mesh(new THREE.BoxGeometry(0.136, 0.28, 0.34), spotMat);
  spotSideR.name = 'spotSideR';
  spotSideR.position.set(-0.268, 0.63, -0.25);
  body.add(spotSideR);
  const spotTopR = new THREE.Mesh(new THREE.BoxGeometry(0.296, 0.226, 0.26), spotMat);
  spotTopR.name = 'spotTopR';
  spotTopR.position.set(-0.188, 0.823, 0.27);
  body.add(spotTopR);
  const spotRear = new THREE.Mesh(new THREE.BoxGeometry(0.32, 0.26, 0.126), spotMat);
  spotRear.name = 'spotRear';
  spotRear.position.set(0.04, 0.68, -0.443);
  body.add(spotRear);
  const spotBackL = new THREE.Mesh(new THREE.BoxGeometry(0.196, 0.22, 0.206), spotMat);
  spotBackL.name = 'spotBackL';
  spotBackL.position.set(0.238, 0.56, -0.403);
  body.add(spotBackL);
  const udder = new THREE.Mesh(new THREE.BoxGeometry(0.24, 0.08, 0.24), pinkMat);
  udder.name = 'udder';
  udder.position.set(0, 0.36, -0.24);
  body.add(udder);
  const teat = new THREE.Mesh(boxGeo3, pinkMat);
  teat.name = 'teat';
  teat.position.set(0.06, 0.3, -0.18);
  body.add(teat);
  const teat2 = new THREE.Mesh(boxGeo3, pinkMat);
  teat2.name = 'teat';
  teat2.position.set(-0.06, 0.3, -0.18);
  body.add(teat2);
  const teat3 = new THREE.Mesh(boxGeo3, pinkMat);
  teat3.name = 'teat';
  teat3.position.set(0.06, 0.3, -0.3);
  body.add(teat3);
  const teat4 = new THREE.Mesh(boxGeo3, pinkMat);
  teat4.name = 'teat';
  teat4.position.set(-0.06, 0.3, -0.3);
  body.add(teat4);
  const tail = new THREE.Group();
  tail.name = 'tail';
  tail.position.set(0.07, 0.89, -0.52);
  tail.rotation.set(deg(-10), 0, deg(8));
  root.add(tail);
  const tailRope = new THREE.Mesh(new THREE.BoxGeometry(0.05, 0.4, 0.05), hideMat);
  tailRope.name = 'tailRope';
  tailRope.position.set(0, -0.2, -0.02);
  tail.add(tailRope);
  const tailTuft = new THREE.Mesh(new THREE.BoxGeometry(0.09, 0.12, 0.09), spotMat);
  tailTuft.name = 'tailTuft';
  tailTuft.position.set(0, -0.42, -0.02);
  tail.add(tailTuft);
  const head = new THREE.Group();
  head.name = 'head';
  head.position.set(0, 0.86, 0.42);
  root.add(head);
  const skull = new THREE.Mesh(new THREE.BoxGeometry(0.56, 0.5, 0.46), hideMat);
  skull.name = 'skull';
  skull.position.set(0, 0.15, 0.2);
  head.add(skull);
  const spotHead = new THREE.Mesh(new THREE.BoxGeometry(0.24, 0.24, 0.3), spotMat);
  spotHead.name = 'spotHead';
  spotHead.position.set(0.166, 0.286, 0.114);
  head.add(spotHead);
  const muzzle = new THREE.Mesh(new THREE.BoxGeometry(0.6, 0.22, 0.14), pinkMat);
  muzzle.name = 'muzzle';
  muzzle.position.set(0, 0, 0.49);
  head.add(muzzle);
  const nostrilL = new THREE.Mesh(boxGeo4, hoofMat);
  nostrilL.name = 'nostrilL';
  nostrilL.position.set(0.12, 0.03, 0.566);
  head.add(nostrilL);
  const nostrilR = new THREE.Mesh(boxGeo4, hoofMat);
  nostrilR.name = 'nostrilR';
  nostrilR.position.set(-0.12, 0.03, 0.566);
  head.add(nostrilR);
  const eyeL = new THREE.Mesh(boxGeo5, eyeMat);
  eyeL.name = 'eyeL';
  eyeL.position.set(0.246, 0.22, 0.396);
  head.add(eyeL);
  const eyeShineL = new THREE.Mesh(boxGeo6, hornMat);
  eyeShineL.name = 'eyeShineL';
  eyeShineL.position.set(0.256, 0.24, 0.4405);
  head.add(eyeShineL);
  const eyeR = new THREE.Mesh(boxGeo5, eyeMat);
  eyeR.name = 'eyeR';
  eyeR.position.set(-0.246, 0.22, 0.396);
  head.add(eyeR);
  const eyeShineR = new THREE.Mesh(boxGeo6, hornMat);
  eyeShineR.name = 'eyeShineR';
  eyeShineR.position.set(-0.256, 0.24, 0.4405);
  head.add(eyeShineR);
  const earL = new THREE.Group();
  earL.name = 'earL';
  earL.position.set(0.28, 0.29, 0.12);
  earL.rotation.set(0, 0, deg(-20));
  head.add(earL);
  const earFlapL = new THREE.Mesh(boxGeo7, hideMat);
  earFlapL.name = 'earFlapL';
  earFlapL.position.set(0.09, 0, 0);
  earL.add(earFlapL);
  const earInL = new THREE.Mesh(boxGeo8, pinkMat);
  earInL.name = 'earInL';
  earInL.position.set(0.1, 0, 0.043);
  earL.add(earInL);
  const earR = new THREE.Group();
  earR.name = 'earR';
  earR.position.set(-0.28, 0.29, 0.12);
  earR.rotation.set(0, 0, deg(20));
  head.add(earR);
  const earFlapR = new THREE.Mesh(boxGeo7, hideMat);
  earFlapR.name = 'earFlapR';
  earFlapR.position.set(-0.09, 0, 0);
  earR.add(earFlapR);
  const earInR = new THREE.Mesh(boxGeo8, pinkMat);
  earInR.name = 'earInR';
  earInR.position.set(-0.1, 0, 0.043);
  earR.add(earInR);
  const hornBaseL = new THREE.Mesh(boxGeo9, hornMat);
  hornBaseL.name = 'hornBaseL';
  hornBaseL.position.set(0.315, 0.38, 0.16);
  head.add(hornBaseL);
  const hornTipL = new THREE.Mesh(boxGeo10, hornMat);
  hornTipL.name = 'hornTipL';
  hornTipL.position.set(0.355, 0.47, 0.16);
  hornTipL.rotation.set(0, 0, deg(-12));
  head.add(hornTipL);
  const hornBaseR = new THREE.Mesh(boxGeo9, hornMat);
  hornBaseR.name = 'hornBaseR';
  hornBaseR.position.set(-0.315, 0.38, 0.16);
  head.add(hornBaseR);
  const hornTipR = new THREE.Mesh(boxGeo10, hornMat);
  hornTipR.name = 'hornTipR';
  hornTipR.position.set(-0.355, 0.47, 0.16);
  hornTipR.rotation.set(0, 0, deg(12));
  head.add(hornTipR);

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

export default createCow;