/**
 * Cat — Codels 3D model library
 * License: CC0-1.0 · Units: meters · Y-up · Front: +Z · Origin: center of the base (y = 0)
 * Triangles: 532 · Size (W × H × D): 0.28 × 0.48 × 0.28 m
 *
 * Usage:
 *   import { createCat } from './cat.js';
 *   
 *   const model = createCat();
 *   model.position.set(0, 0, 0);
 *   scene.add(model);
 */
import * as THREE from 'three';

const deg = THREE.MathUtils.degToRad;

// Extrude a 2D outline along Z (centered). bevel = [thickness, size, segments].
function extrude(outline, depth, holes = [], bevel = null) {
  const shape = new THREE.Shape(outline.map(([x, y]) => new THREE.Vector2(x, y)));
  for (const hole of holes) shape.holes.push(new THREE.Path(hole.map(([x, y]) => new THREE.Vector2(x, y))));
  const options = bevel
    ? { depth, bevelEnabled: true, bevelThickness: bevel[0], bevelSize: bevel[1], bevelSegments: bevel[2] }
    : { depth, bevelEnabled: false };
  return new THREE.ExtrudeGeometry(shape, options).translate(0, 0, -depth / 2);
}

export function createCat() {
  const root = new THREE.Group();
  root.name = 'Cat';

  // Materials
  const furMat = new THREE.MeshStandardMaterial({ name: 'fur', color: 0xe39a4c, roughness: 0.9, flatShading: true });
  const stripeMat = new THREE.MeshStandardMaterial({ name: 'stripe', color: 0x8d5f2f, roughness: 0.9, flatShading: true });
  const whiteMat = new THREE.MeshStandardMaterial({ name: 'white', color: 0xf7f1e8, roughness: 0.95, flatShading: true });
  const pinkMat = new THREE.MeshStandardMaterial({ name: 'pink', color: 0xf2a0ab, roughness: 0.6, flatShading: true });
  const eyeMat = new THREE.MeshStandardMaterial({ name: 'eye', color: 0x1a1618, roughness: 0.25, flatShading: true });
  const shineMat = new THREE.MeshStandardMaterial({ name: 'shine', color: 0xffffff, roughness: 0.3, flatShading: true });
  const collarMat = new THREE.MeshStandardMaterial({ name: 'collar', color: 0xd8363f, roughness: 0.6, flatShading: true });
  const goldMat = new THREE.MeshStandardMaterial({ name: 'gold', color: 0xf2c14c, roughness: 0.3, metalness: 0.65, flatShading: true });

  // Shared geometries
  const boxGeo = new THREE.BoxGeometry(0.05, 0.15, 0.05);
  const boxGeo2 = new THREE.BoxGeometry(0.056, 0.025, 0.06);
  const boxGeo3 = new THREE.BoxGeometry(0.07, 0.11, 0.14);
  const boxGeo4 = new THREE.BoxGeometry(0.055, 0.035, 0.1);
  const boxGeo5 = new THREE.BoxGeometry(0.058, 0.037, 0.025);
  const boxGeo6 = new THREE.BoxGeometry(0.006, 0.07, 0.022);
  const boxGeo7 = new THREE.BoxGeometry(0.156, 0.022, 0.06);
  const boxGeo8 = new THREE.BoxGeometry(0.075, 0.004, 0.004);
  const boxGeo9 = new THREE.BoxGeometry(0.042, 0.052, 0.01);
  const boxGeo10 = new THREE.BoxGeometry(0.016, 0.016, 0.006);
  const boxGeo11 = new THREE.BoxGeometry(0.014, 0.035, 0.006);
  const boxGeo12 = new THREE.BoxGeometry(0.006, 0.014, 0.05);
  const boxGeo13 = new THREE.BoxGeometry(0.006, 0.014, 0.04);

  // Parts
  const legFL = new THREE.Group();
  legFL.name = 'legFL';
  legFL.position.set(0.045, 0.175, 0.055);
  root.add(legFL);
  const forelegL = new THREE.Mesh(boxGeo, furMat);
  forelegL.name = 'forelegL';
  forelegL.position.set(0, -0.075, 0);
  legFL.add(forelegL);
  const pawFL = new THREE.Mesh(boxGeo2, whiteMat);
  pawFL.name = 'pawFL';
  pawFL.position.set(0, -0.1625, 0.006);
  legFL.add(pawFL);
  const legFR = new THREE.Group();
  legFR.name = 'legFR';
  legFR.position.set(-0.045, 0.175, 0.055);
  root.add(legFR);
  const forelegR = new THREE.Mesh(boxGeo, furMat);
  forelegR.name = 'forelegR';
  forelegR.position.set(0, -0.075, 0);
  legFR.add(forelegR);
  const pawFR = new THREE.Mesh(boxGeo2, whiteMat);
  pawFR.name = 'pawFR';
  pawFR.position.set(0, -0.1625, 0.006);
  legFR.add(pawFR);
  const legBL = new THREE.Group();
  legBL.name = 'legBL';
  legBL.position.set(0.072, 0.08, -0.04);
  root.add(legBL);
  const haunchL = new THREE.Mesh(boxGeo3, furMat);
  haunchL.name = 'haunchL';
  haunchL.position.set(0, -0.025, -0.005);
  legBL.add(haunchL);
  const hindFootL = new THREE.Mesh(boxGeo4, furMat);
  hindFootL.name = 'hindFootL';
  hindFootL.position.set(0, -0.0625, 0.07);
  legBL.add(hindFootL);
  const pawBL = new THREE.Mesh(boxGeo5, whiteMat);
  pawBL.name = 'pawBL';
  pawBL.position.set(0, -0.0625, 0.115);
  legBL.add(pawBL);
  const haunchStripe = new THREE.Mesh(boxGeo6, stripeMat);
  haunchStripe.name = 'haunchStripe';
  haunchStripe.position.set(0.038, -0.01, -0.02);
  haunchStripe.rotation.set(deg(25), 0, 0);
  legBL.add(haunchStripe);
  const legBR = new THREE.Group();
  legBR.name = 'legBR';
  legBR.position.set(-0.072, 0.08, -0.04);
  root.add(legBR);
  const haunchR = new THREE.Mesh(boxGeo3, furMat);
  haunchR.name = 'haunchR';
  haunchR.position.set(0, -0.025, -0.005);
  legBR.add(haunchR);
  const hindFootR = new THREE.Mesh(boxGeo4, furMat);
  hindFootR.name = 'hindFootR';
  hindFootR.position.set(0, -0.0625, 0.07);
  legBR.add(hindFootR);
  const pawBR = new THREE.Mesh(boxGeo5, whiteMat);
  pawBR.name = 'pawBR';
  pawBR.position.set(0, -0.0625, 0.115);
  legBR.add(pawBR);
  const haunchStripe2 = new THREE.Mesh(boxGeo6, stripeMat);
  haunchStripe2.name = 'haunchStripe';
  haunchStripe2.position.set(-0.038, -0.01, -0.02);
  haunchStripe2.rotation.set(deg(25), 0, 0);
  legBR.add(haunchStripe2);
  const body = new THREE.Group();
  body.name = 'body';
  root.add(body);
  const torso = new THREE.Group();
  torso.name = 'torso';
  torso.position.set(0, 0.12, -0.03);
  torso.rotation.set(deg(-15), 0, 0);
  body.add(torso);
  const chestBox = new THREE.Mesh(new THREE.BoxGeometry(0.15, 0.2, 0.14), furMat);
  chestBox.name = 'chestBox';
  torso.add(chestBox);
  const chest = new THREE.Mesh(new THREE.BoxGeometry(0.1, 0.14, 0.012), whiteMat);
  chest.name = 'chest';
  chest.position.set(0, 0, 0.073);
  torso.add(chest);
  const stripeBack = new THREE.Mesh(boxGeo7, stripeMat);
  stripeBack.name = 'stripeBack';
  stripeBack.position.set(0, 0.05, -0.045);
  torso.add(stripeBack);
  const stripeBack2 = new THREE.Mesh(boxGeo7, stripeMat);
  stripeBack2.name = 'stripeBack';
  stripeBack2.position.set(0, -0.01, -0.045);
  torso.add(stripeBack2);
  const tail = new THREE.Group();
  tail.name = 'tail';
  tail.position.set(0, 0.021, -0.1);
  root.add(tail);
  const tailSeg1 = new THREE.Mesh(new THREE.BoxGeometry(0.042, 0.1336, 0.042), furMat);
  tailSeg1.name = 'tailSeg1';
  tailSeg1.position.set(0.05, 0, 0);
  tailSeg1.rotation.set(deg(-90), 0, deg(-90));
  tail.add(tailSeg1);
  const tailSeg2 = new THREE.Mesh(new THREE.BoxGeometry(0.042, 0.1601, 0.042), furMat);
  tailSeg2.name = 'tailSeg2';
  tailSeg2.position.set(0.12, 0, 0.06);
  tailSeg2.rotation.set(deg(-90), 0, deg(-161.5651));
  tail.add(tailSeg2);
  const tailStripe = new THREE.Mesh(new THREE.BoxGeometry(0.048, 0.0253, 0.048), stripeMat);
  tailStripe.name = 'tailStripe';
  tailStripe.position.set(0.12, 0, 0.06);
  tailStripe.rotation.set(deg(-90), 0, deg(-161.5651));
  tail.add(tailStripe);
  const tailSeg3 = new THREE.Mesh(new THREE.BoxGeometry(0.042, 0.1321, 0.042), stripeMat);
  tailSeg3.name = 'tailSeg3';
  tailSeg3.position.set(0.12, 0, 0.165);
  tailSeg3.rotation.set(deg(-90), 0, deg(156.0375));
  tail.add(tailSeg3);
  const collar = new THREE.Group();
  collar.name = 'collar';
  collar.position.set(0, 0.222, 0);
  collar.rotation.set(deg(-12), 0, 0);
  root.add(collar);
  const collarBand = new THREE.Mesh(new THREE.BoxGeometry(0.165, 0.035, 0.15), collarMat);
  collarBand.name = 'collarBand';
  collar.add(collarBand);
  const bell = new THREE.Mesh(new THREE.IcosahedronGeometry(0.02, 0), goldMat);
  bell.name = 'bell';
  bell.position.set(0, -0.024, 0.08);
  collar.add(bell);
  const head = new THREE.Group();
  head.name = 'head';
  head.position.set(0, 0.245, 0.015);
  root.add(head);
  const skull = new THREE.Mesh(new THREE.BoxGeometry(0.21, 0.17, 0.16), furMat);
  skull.name = 'skull';
  skull.position.set(0, 0.075, 0.035);
  head.add(skull);
  const muzzle = new THREE.Mesh(new THREE.BoxGeometry(0.09, 0.05, 0.03), whiteMat);
  muzzle.name = 'muzzle';
  muzzle.position.set(0, 0.03, 0.125);
  head.add(muzzle);
  const nose = new THREE.Mesh(new THREE.BoxGeometry(0.032, 0.02, 0.012), pinkMat);
  nose.name = 'nose';
  nose.position.set(0, 0.054, 0.141);
  head.add(nose);
  const mouth = new THREE.Mesh(new THREE.BoxGeometry(0.02, 0.016, 0.008), stripeMat);
  mouth.name = 'mouth';
  mouth.position.set(0, 0.018, 0.142);
  head.add(mouth);
  const whisker = new THREE.Mesh(boxGeo8, whiteMat);
  whisker.name = 'whisker';
  whisker.position.set(0.075, 0.035, 0.135);
  whisker.rotation.set(0, deg(12), deg(8));
  head.add(whisker);
  const whisker2 = new THREE.Mesh(boxGeo8, whiteMat);
  whisker2.name = 'whisker';
  whisker2.position.set(0.075, 0.019, 0.135);
  whisker2.rotation.set(0, deg(12), deg(-8));
  head.add(whisker2);
  const whisker3 = new THREE.Mesh(boxGeo8, whiteMat);
  whisker3.name = 'whisker';
  whisker3.position.set(-0.075, 0.035, 0.135);
  whisker3.rotation.set(0, deg(-12), deg(-8));
  head.add(whisker3);
  const whisker4 = new THREE.Mesh(boxGeo8, whiteMat);
  whisker4.name = 'whisker';
  whisker4.position.set(-0.075, 0.019, 0.135);
  whisker4.rotation.set(0, deg(-12), deg(8));
  head.add(whisker4);
  const eyeL = new THREE.Mesh(boxGeo9, eyeMat);
  eyeL.name = 'eyeL';
  eyeL.position.set(0.055, 0.095, 0.118);
  head.add(eyeL);
  const eyeShineL = new THREE.Mesh(boxGeo10, shineMat);
  eyeShineL.name = 'eyeShineL';
  eyeShineL.position.set(0.064, 0.107, 0.124);
  head.add(eyeShineL);
  const eyeR = new THREE.Mesh(boxGeo9, eyeMat);
  eyeR.name = 'eyeR';
  eyeR.position.set(-0.055, 0.095, 0.118);
  head.add(eyeR);
  const eyeShineR = new THREE.Mesh(boxGeo10, shineMat);
  eyeShineR.name = 'eyeShineR';
  eyeShineR.position.set(-0.046, 0.107, 0.124);
  head.add(eyeShineR);
  const earL = new THREE.Group();
  earL.name = 'earL';
  earL.position.set(0.06, 0.154, 0.015);
  earL.rotation.set(deg(-4), 0, deg(-10));
  head.add(earL);
  const earOuterL = new THREE.Mesh(extrude([[-0.045, 0], [0.045, 0], [0.012, 0.085]], 0.025), furMat);
  earOuterL.name = 'earOuterL';
  earL.add(earOuterL);
  const earInnerL = new THREE.Mesh(extrude([[-0.027, 0.008], [0.027, 0.008], [0.008, 0.06]], 0.008), pinkMat);
  earInnerL.name = 'earInnerL';
  earInnerL.position.set(0, 0, 0.0155);
  earL.add(earInnerL);
  const earR = new THREE.Group();
  earR.name = 'earR';
  earR.position.set(-0.06, 0.154, 0.015);
  earR.rotation.set(deg(-4), 0, deg(10));
  head.add(earR);
  const earOuterR = new THREE.Mesh(extrude([[-0.045, 0], [0.045, 0], [-0.012, 0.085]], 0.025), furMat);
  earOuterR.name = 'earOuterR';
  earR.add(earOuterR);
  const earInnerR = new THREE.Mesh(extrude([[-0.027, 0.008], [0.027, 0.008], [-0.008, 0.06]], 0.008), pinkMat);
  earInnerR.name = 'earInnerR';
  earInnerR.position.set(0, 0, 0.0155);
  earR.add(earInnerR);
  const foreheadStripe = new THREE.Mesh(new THREE.BoxGeometry(0.016, 0.045, 0.006), stripeMat);
  foreheadStripe.name = 'foreheadStripe';
  foreheadStripe.position.set(0, 0.13, 0.118);
  head.add(foreheadStripe);
  const foreheadStripe2 = new THREE.Mesh(boxGeo11, stripeMat);
  foreheadStripe2.name = 'foreheadStripe';
  foreheadStripe2.position.set(0.03, 0.135, 0.118);
  foreheadStripe2.rotation.set(0, 0, deg(15));
  head.add(foreheadStripe2);
  const cheekStripe = new THREE.Mesh(boxGeo12, stripeMat);
  cheekStripe.name = 'cheekStripe';
  cheekStripe.position.set(0.108, 0.065, 0.075);
  head.add(cheekStripe);
  const cheekStripe2 = new THREE.Mesh(boxGeo13, stripeMat);
  cheekStripe2.name = 'cheekStripe';
  cheekStripe2.position.set(0.108, 0.035, 0.07);
  head.add(cheekStripe2);
  const foreheadStripe3 = new THREE.Mesh(boxGeo11, stripeMat);
  foreheadStripe3.name = 'foreheadStripe';
  foreheadStripe3.position.set(-0.03, 0.135, 0.118);
  foreheadStripe3.rotation.set(0, 0, deg(-15));
  head.add(foreheadStripe3);
  const cheekStripe3 = new THREE.Mesh(boxGeo12, stripeMat);
  cheekStripe3.name = 'cheekStripe';
  cheekStripe3.position.set(-0.108, 0.065, 0.075);
  head.add(cheekStripe3);
  const cheekStripe4 = new THREE.Mesh(boxGeo13, stripeMat);
  cheekStripe4.name = 'cheekStripe';
  cheekStripe4.position.set(-0.108, 0.035, 0.07);
  head.add(cheekStripe4);

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

export default createCat;