/**
 * Horse — Codels 3D model library
 * License: CC0-1.0 · Units: meters · Y-up · Front: +Z · Origin: center of the base (y = 0)
 * Triangles: 1,104 · Size (W × H × D): 0.69 × 2.73 × 2.74 m
 *
 * Usage:
 *   import { createHorse } from './horse.js';
 *   
 *   const model = createHorse();
 *   model.position.set(0, 0, 0);
 *   scene.add(model);
 */
import * as THREE from 'three';

const deg = THREE.MathUtils.degToRad;

// Tube along a smooth curve through the given points.
function tube(path, radius, tubularSegments, radialSegments, closed = false) {
  const curve = new THREE.CatmullRomCurve3(path.map(([x, y, z]) => new THREE.Vector3(x, y, z)), closed);
  return new THREE.TubeGeometry(curve, tubularSegments, radius, radialSegments, closed);
}

export function createHorse() {
  const root = new THREE.Group();
  root.name = 'Horse';

  // Materials
  const coatMat = new THREE.MeshStandardMaterial({ name: 'coat', color: 0x9c5d35, roughness: 0.75, flatShading: true });
  const muzzleMat = new THREE.MeshStandardMaterial({ name: 'muzzle', color: 0x653c22, roughness: 0.75, flatShading: true });
  const maneMat = new THREE.MeshStandardMaterial({ name: 'mane', color: 0x2e221d, roughness: 0.9, flatShading: true });
  const whiteMat = new THREE.MeshStandardMaterial({ name: 'white', color: 0xf4efe6, roughness: 0.85, flatShading: true });
  const hoofMat = new THREE.MeshStandardMaterial({ name: 'hoof', color: 0x3b302b, roughness: 0.7, flatShading: true });
  const eyeMat = new THREE.MeshStandardMaterial({ name: 'eye', color: 0x17131a, roughness: 0.3, flatShading: true });
  const shineMat = new THREE.MeshStandardMaterial({ name: 'shine', color: 0xffffff, roughness: 0.3, flatShading: true });
  const leatherMat = new THREE.MeshStandardMaterial({ name: 'leather', color: 0x6a3f22, roughness: 0.6, flatShading: true });
  const blanketMat = new THREE.MeshStandardMaterial({ name: 'blanket', color: 0xb8362f, roughness: 0.9, flatShading: true });
  const metalMat = new THREE.MeshStandardMaterial({ name: 'metal', color: 0xcfd4da, roughness: 0.3, metalness: 0.75, flatShading: true });

  // Shared geometries
  const boxGeo = new THREE.BoxGeometry(0.2, 0.46, 0.24);
  const boxGeo2 = new THREE.BoxGeometry(0.15, 0.56, 0.16);
  const boxGeo3 = new THREE.BoxGeometry(0.16, 0.2, 0.17);
  const boxGeo4 = new THREE.BoxGeometry(0.19, 0.11, 0.21);
  const boxGeo5 = new THREE.BoxGeometry(0.22, 0.5, 0.32);
  const boxGeo6 = new THREE.BoxGeometry(0.025, 0.26, 0.56);
  const boxGeo7 = new THREE.BoxGeometry(0.03, 0.04, 0.565);
  const boxGeo8 = new THREE.BoxGeometry(0.012, 0.42, 0.09);
  const boxGeo9 = new THREE.BoxGeometry(0.02, 0.42, 0.05);
  const torusGeo = new THREE.TorusGeometry(0.06, 0.016, 4, 8);
  const boxGeo10 = new THREE.BoxGeometry(0.05, 0.03, 0.01);
  const boxGeo11 = new THREE.BoxGeometry(0.075, 0.09, 0.075);
  const boxGeo12 = new THREE.BoxGeometry(0.01, 0.03, 0.03);
  const boxGeo13 = new THREE.BoxGeometry(0.03, 0.03, 0.01);
  const coneGeo = new THREE.ConeGeometry(0.055, 0.15, 4, 1, false, Math.PI / 4);
  const boxGeo14 = new THREE.BoxGeometry(0.012, 0.36, 0.035);
  const boxGeo15 = new THREE.BoxGeometry(0.02, 0.04, 0.04);

  // Parts
  const legFL = new THREE.Group();
  legFL.name = 'legFL';
  legFL.position.set(0.16, 1.06, 0.52);
  root.add(legFL);
  const legFLUpper = new THREE.Mesh(boxGeo, coatMat);
  legFLUpper.name = 'legFLUpper';
  legFLUpper.position.set(0, -0.2, 0);
  legFL.add(legFLUpper);
  const legFLCannon = new THREE.Mesh(boxGeo2, coatMat);
  legFLCannon.name = 'legFLCannon';
  legFLCannon.position.set(0, -0.68, 0);
  legFL.add(legFLCannon);
  const legFLSock = new THREE.Mesh(boxGeo3, whiteMat);
  legFLSock.name = 'legFLSock';
  legFLSock.position.set(0, -0.86, 0);
  legFL.add(legFLSock);
  const legFLHoof = new THREE.Mesh(boxGeo4, hoofMat);
  legFLHoof.name = 'legFLHoof';
  legFLHoof.position.set(0, -1.005, 0.01);
  legFL.add(legFLHoof);
  const legFR = new THREE.Group();
  legFR.name = 'legFR';
  legFR.position.set(-0.16, 1.06, 0.52);
  root.add(legFR);
  const legFRUpper = new THREE.Mesh(boxGeo, coatMat);
  legFRUpper.name = 'legFRUpper';
  legFRUpper.position.set(0, -0.2, 0);
  legFR.add(legFRUpper);
  const legFRCannon = new THREE.Mesh(boxGeo2, coatMat);
  legFRCannon.name = 'legFRCannon';
  legFRCannon.position.set(0, -0.68, 0);
  legFR.add(legFRCannon);
  const legFRHoof = new THREE.Mesh(boxGeo4, hoofMat);
  legFRHoof.name = 'legFRHoof';
  legFRHoof.position.set(0, -1.005, 0.01);
  legFR.add(legFRHoof);
  const legBL = new THREE.Group();
  legBL.name = 'legBL';
  legBL.position.set(0.16, 1.06, -0.52);
  root.add(legBL);
  const legBLThigh = new THREE.Mesh(boxGeo5, coatMat);
  legBLThigh.name = 'legBLThigh';
  legBLThigh.position.set(0, -0.2, -0.02);
  legBL.add(legBLThigh);
  const legBLCannon = new THREE.Mesh(boxGeo2, coatMat);
  legBLCannon.name = 'legBLCannon';
  legBLCannon.position.set(0, -0.68, 0);
  legBL.add(legBLCannon);
  const legBLHoof = new THREE.Mesh(boxGeo4, hoofMat);
  legBLHoof.name = 'legBLHoof';
  legBLHoof.position.set(0, -1.005, 0.01);
  legBL.add(legBLHoof);
  const legBR = new THREE.Group();
  legBR.name = 'legBR';
  legBR.position.set(-0.16, 1.06, -0.52);
  root.add(legBR);
  const legBRThigh = new THREE.Mesh(boxGeo5, coatMat);
  legBRThigh.name = 'legBRThigh';
  legBRThigh.position.set(0, -0.2, -0.02);
  legBR.add(legBRThigh);
  const legBRCannon = new THREE.Mesh(boxGeo2, coatMat);
  legBRCannon.name = 'legBRCannon';
  legBRCannon.position.set(0, -0.68, 0);
  legBR.add(legBRCannon);
  const legBRSock = new THREE.Mesh(boxGeo3, whiteMat);
  legBRSock.name = 'legBRSock';
  legBRSock.position.set(0, -0.86, 0);
  legBR.add(legBRSock);
  const legBRHoof = new THREE.Mesh(boxGeo4, hoofMat);
  legBRHoof.name = 'legBRHoof';
  legBRHoof.position.set(0, -1.005, 0.01);
  legBR.add(legBRHoof);
  const body = new THREE.Group();
  body.name = 'body';
  root.add(body);
  const barrel = new THREE.Mesh(new THREE.BoxGeometry(0.56, 0.62, 1.45), coatMat);
  barrel.name = 'barrel';
  barrel.position.set(0, 1.29, 0);
  body.add(barrel);
  const chest = new THREE.Mesh(new THREE.BoxGeometry(0.46, 0.4, 0.06), coatMat);
  chest.name = 'chest';
  chest.position.set(0, 1.24, 0.745);
  body.add(chest);
  const blanketTop = new THREE.Mesh(new THREE.BoxGeometry(0.61, 0.03, 0.56), blanketMat);
  blanketTop.name = 'blanketTop';
  blanketTop.position.set(0, 1.615, 0.05);
  body.add(blanketTop);
  const blanketL = new THREE.Mesh(boxGeo6, blanketMat);
  blanketL.name = 'blanketL';
  blanketL.position.set(0.2925, 1.485, 0.05);
  body.add(blanketL);
  const blanketTrimL = new THREE.Mesh(boxGeo7, whiteMat);
  blanketTrimL.name = 'blanketTrimL';
  blanketTrimL.position.set(0.295, 1.37, 0.05);
  body.add(blanketTrimL);
  const girth = new THREE.Mesh(boxGeo8, leatherMat);
  girth.name = 'girth';
  girth.position.set(0.311, 1.19, 0.22);
  body.add(girth);
  const stirrupLeatherL = new THREE.Mesh(boxGeo9, leatherMat);
  stirrupLeatherL.name = 'stirrupLeatherL';
  stirrupLeatherL.position.set(0.33, 1.47, 0.08);
  body.add(stirrupLeatherL);
  const stirrupL = new THREE.Mesh(torusGeo, metalMat);
  stirrupL.name = 'stirrupL';
  stirrupL.position.set(0.33, 1.22, 0.08);
  stirrupL.rotation.set(0, deg(90), 0);
  body.add(stirrupL);
  const blanketR = new THREE.Mesh(boxGeo6, blanketMat);
  blanketR.name = 'blanketR';
  blanketR.position.set(-0.2925, 1.485, 0.05);
  body.add(blanketR);
  const blanketTrimR = new THREE.Mesh(boxGeo7, whiteMat);
  blanketTrimR.name = 'blanketTrimR';
  blanketTrimR.position.set(-0.295, 1.37, 0.05);
  body.add(blanketTrimR);
  const girth2 = new THREE.Mesh(boxGeo8, leatherMat);
  girth2.name = 'girth';
  girth2.position.set(-0.311, 1.19, 0.22);
  body.add(girth2);
  const stirrupLeatherR = new THREE.Mesh(boxGeo9, leatherMat);
  stirrupLeatherR.name = 'stirrupLeatherR';
  stirrupLeatherR.position.set(-0.33, 1.47, 0.08);
  body.add(stirrupLeatherR);
  const stirrupR = new THREE.Mesh(torusGeo, metalMat);
  stirrupR.name = 'stirrupR';
  stirrupR.position.set(-0.33, 1.22, 0.08);
  stirrupR.rotation.set(0, deg(90), 0);
  body.add(stirrupR);
  const girthBelly = new THREE.Mesh(new THREE.BoxGeometry(0.52, 0.012, 0.09), leatherMat);
  girthBelly.name = 'girthBelly';
  girthBelly.position.set(0, 0.972, 0.22);
  body.add(girthBelly);
  const saddleSeat = new THREE.Mesh(new THREE.BoxGeometry(0.44, 0.08, 0.46), leatherMat);
  saddleSeat.name = 'saddleSeat';
  saddleSeat.position.set(0, 1.67, 0.05);
  body.add(saddleSeat);
  const pommel = new THREE.Mesh(new THREE.BoxGeometry(0.26, 0.13, 0.1), leatherMat);
  pommel.name = 'pommel';
  pommel.position.set(0, 1.73, 0.27);
  body.add(pommel);
  const saddleHorn = new THREE.Mesh(new THREE.CylinderGeometry(0.03, 0.03, 0.1, 6), leatherMat);
  saddleHorn.name = 'saddleHorn';
  saddleHorn.position.set(0, 1.84, 0.29);
  body.add(saddleHorn);
  const hornCap = new THREE.Mesh(new THREE.CylinderGeometry(0.05, 0.05, 0.03, 6), leatherMat);
  hornCap.name = 'hornCap';
  hornCap.position.set(0, 1.9, 0.29);
  body.add(hornCap);
  const cantle = new THREE.Mesh(new THREE.BoxGeometry(0.38, 0.14, 0.09), leatherMat);
  cantle.name = 'cantle';
  cantle.position.set(0, 1.75, -0.16);
  body.add(cantle);
  const tail = new THREE.Group();
  tail.name = 'tail';
  tail.position.set(0, 1.5, -0.725);
  root.add(tail);
  const tailDock = new THREE.Mesh(new THREE.BoxGeometry(0.13, 0.14, 0.2), maneMat);
  tailDock.name = 'tailDock';
  tailDock.position.set(0, 0, -0.08);
  tail.add(tailDock);
  const tailHair = new THREE.Mesh(new THREE.BoxGeometry(0.18, 0.5, 0.16), maneMat);
  tailHair.name = 'tailHair';
  tailHair.position.set(0, -0.26, -0.18);
  tailHair.rotation.set(deg(-14), 0, 0);
  tail.add(tailHair);
  const tailEnd = new THREE.Mesh(new THREE.BoxGeometry(0.15, 0.25, 0.13), maneMat);
  tailEnd.name = 'tailEnd';
  tailEnd.position.set(0, -0.6, -0.26);
  tailEnd.rotation.set(deg(-22), 0, 0);
  tail.add(tailEnd);
  const head = new THREE.Group();
  head.name = 'head';
  head.position.set(0, 1.45, 0.605);
  root.add(head);
  const neck = new THREE.Mesh(new THREE.BoxGeometry(0.32, 0.8, 0.44), coatMat);
  neck.name = 'neck';
  neck.position.set(0, 0.32, 0.12);
  neck.rotation.set(deg(28), 0, 0);
  head.add(neck);
  const mane = new THREE.Group();
  mane.name = 'mane';
  mane.position.set(0, 0.32, 0.12);
  mane.rotation.set(deg(28), 0, 0);
  head.add(mane);
  const maneTuft1 = new THREE.Mesh(new THREE.BoxGeometry(0.1557, 0.21, 0.17), maneMat);
  maneTuft1.name = 'maneTuft1';
  maneTuft1.position.set(0.0055, -0.3, -0.23);
  maneTuft1.rotation.set(deg(-4.4838), 0, 0);
  mane.add(maneTuft1);
  const maneTuft2 = new THREE.Mesh(new THREE.BoxGeometry(0.1537, 0.21, 0.17), maneMat);
  maneTuft2.name = 'maneTuft2';
  maneTuft2.position.set(-0.0083, -0.14, -0.23);
  maneTuft2.rotation.set(deg(1.4746), 0, 0);
  mane.add(maneTuft2);
  const maneTuft3 = new THREE.Mesh(new THREE.BoxGeometry(0.1566, 0.21, 0.17), maneMat);
  maneTuft3.name = 'maneTuft3';
  maneTuft3.position.set(-0.0008, 0.02, -0.23);
  maneTuft3.rotation.set(deg(6.4899), 0, 0);
  mane.add(maneTuft3);
  const maneTuft4 = new THREE.Mesh(new THREE.BoxGeometry(0.1419, 0.21, 0.17), maneMat);
  maneTuft4.name = 'maneTuft4';
  maneTuft4.position.set(0.0056, 0.18, -0.23);
  maneTuft4.rotation.set(deg(3.8498), 0, 0);
  mane.add(maneTuft4);
  const maneTuft5 = new THREE.Mesh(new THREE.BoxGeometry(0.1548, 0.21, 0.17), maneMat);
  maneTuft5.name = 'maneTuft5';
  maneTuft5.position.set(-0.0097, 0.34, -0.23);
  maneTuft5.rotation.set(deg(-0.5536), 0, 0);
  mane.add(maneTuft5);
  const maneBase = new THREE.Mesh(new THREE.BoxGeometry(0.12, 0.74, 0.08), maneMat);
  maneBase.name = 'maneBase';
  maneBase.position.set(0, 0.02, -0.21);
  mane.add(maneBase);
  const skull = new THREE.Group();
  skull.name = 'skull';
  skull.position.set(0, 0.84, 0.38);
  skull.rotation.set(deg(25), 0, 0);
  skull.scale.setScalar(1.22);
  head.add(skull);
  const cranium = new THREE.Mesh(new THREE.BoxGeometry(0.34, 0.36, 0.4), coatMat);
  cranium.name = 'cranium';
  skull.add(cranium);
  const snout = new THREE.Mesh(new THREE.BoxGeometry(0.28, 0.29, 0.36), coatMat);
  snout.name = 'snout';
  snout.position.set(0, -0.035, 0.36);
  skull.add(snout);
  const muzzle = new THREE.Mesh(new THREE.BoxGeometry(0.285, 0.295, 0.12), muzzleMat);
  muzzle.name = 'muzzle';
  muzzle.position.set(0, -0.035, 0.49);
  skull.add(muzzle);
  const nostril = new THREE.Mesh(boxGeo10, eyeMat);
  nostril.name = 'nostril';
  nostril.position.set(0.07, 0.03, 0.552);
  skull.add(nostril);
  const eyeL = new THREE.Mesh(boxGeo11, eyeMat);
  eyeL.name = 'eyeL';
  eyeL.position.set(0.137, 0.07, 0.167);
  skull.add(eyeL);
  const eyeShineL = new THREE.Mesh(boxGeo12, shineMat);
  eyeShineL.name = 'eyeShineL';
  eyeShineL.position.set(0.1775, 0.09, 0.17);
  skull.add(eyeShineL);
  const eyeShineFrontL = new THREE.Mesh(boxGeo13, shineMat);
  eyeShineFrontL.name = 'eyeShineFrontL';
  eyeShineFrontL.position.set(0.15, 0.09, 0.2075);
  skull.add(eyeShineFrontL);
  const nostril2 = new THREE.Mesh(boxGeo10, eyeMat);
  nostril2.name = 'nostril';
  nostril2.position.set(-0.07, 0.03, 0.552);
  skull.add(nostril2);
  const eyeR = new THREE.Mesh(boxGeo11, eyeMat);
  eyeR.name = 'eyeR';
  eyeR.position.set(-0.137, 0.07, 0.167);
  skull.add(eyeR);
  const eyeShineR = new THREE.Mesh(boxGeo12, shineMat);
  eyeShineR.name = 'eyeShineR';
  eyeShineR.position.set(-0.1775, 0.09, 0.17);
  skull.add(eyeShineR);
  const eyeShineFrontR = new THREE.Mesh(boxGeo13, shineMat);
  eyeShineFrontR.name = 'eyeShineFrontR';
  eyeShineFrontR.position.set(-0.15, 0.09, 0.2075);
  skull.add(eyeShineFrontR);
  const mouth = new THREE.Mesh(new THREE.BoxGeometry(0.12, 0.008, 0.01), eyeMat);
  mouth.name = 'mouth';
  mouth.position.set(0, -0.13, 0.552);
  skull.add(mouth);
  const earL = new THREE.Group();
  earL.name = 'earL';
  earL.position.set(0.1, 0.18, -0.12);
  earL.rotation.set(deg(-15), 0, deg(-12));
  skull.add(earL);
  const earOuterL = new THREE.Mesh(coneGeo, coatMat);
  earOuterL.name = 'earOuterL';
  earOuterL.position.set(0, 0.075, 0);
  earOuterL.scale.set(1, 1, 0.6);
  earL.add(earOuterL);
  const earR = new THREE.Group();
  earR.name = 'earR';
  earR.position.set(-0.1, 0.18, -0.12);
  earR.rotation.set(deg(-15), 0, deg(12));
  skull.add(earR);
  const earOuterR = new THREE.Mesh(coneGeo, coatMat);
  earOuterR.name = 'earOuterR';
  earOuterR.position.set(0, 0.075, 0);
  earOuterR.scale.set(1, 1, 0.6);
  earR.add(earOuterR);
  const forelock = new THREE.Mesh(new THREE.BoxGeometry(0.15, 0.13, 0.05), maneMat);
  forelock.name = 'forelock';
  forelock.position.set(0.015, 0.14, 0.21);
  forelock.rotation.set(0, 0, deg(6));
  skull.add(forelock);
  const blazeForehead = new THREE.Mesh(new THREE.BoxGeometry(0.08, 0.12, 0.01), whiteMat);
  blazeForehead.name = 'blazeForehead';
  blazeForehead.position.set(0, -0.02, 0.205);
  skull.add(blazeForehead);
  const blazeNose = new THREE.Mesh(new THREE.BoxGeometry(0.075, 0.01, 0.42), whiteMat);
  blazeNose.name = 'blazeNose';
  blazeNose.position.set(0, 0.115, 0.33);
  skull.add(blazeNose);
  const noseband = new THREE.Mesh(new THREE.BoxGeometry(0.29, 0.3, 0.04), leatherMat);
  noseband.name = 'noseband';
  noseband.position.set(0, -0.035, 0.36);
  skull.add(noseband);
  const cheekStrap = new THREE.Mesh(boxGeo14, leatherMat);
  cheekStrap.name = 'cheekStrap';
  cheekStrap.position.set(0.176, 0, 0.08);
  cheekStrap.rotation.set(deg(-25), 0, 0);
  skull.add(cheekStrap);
  const bitRing = new THREE.Mesh(boxGeo15, metalMat);
  bitRing.name = 'bitRing';
  bitRing.position.set(0.15, -0.13, 0.42);
  skull.add(bitRing);
  const cheekStrap2 = new THREE.Mesh(boxGeo14, leatherMat);
  cheekStrap2.name = 'cheekStrap';
  cheekStrap2.position.set(-0.176, 0, 0.08);
  cheekStrap2.rotation.set(deg(-25), 0, 0);
  skull.add(cheekStrap2);
  const bitRing2 = new THREE.Mesh(boxGeo15, metalMat);
  bitRing2.name = 'bitRing';
  bitRing2.position.set(-0.15, -0.13, 0.42);
  skull.add(bitRing2);
  const browband = new THREE.Mesh(new THREE.BoxGeometry(0.35, 0.035, 0.03), leatherMat);
  browband.name = 'browband';
  browband.position.set(0, 0.1625, 0.12);
  skull.add(browband);
  const reinL = new THREE.Mesh(tube([[0.1952, 0.4797, 0.7774], [0.17, 0.1878, 0.2494], [0.12, 0.1, -0.1]], 0.014, 12, 4), leatherMat);
  reinL.name = 'reinL';
  head.add(reinL);
  const reinR = new THREE.Mesh(tube([[-0.1952, 0.4797, 0.7774], [-0.17, 0.1878, 0.2494], [-0.12, 0.1, -0.1]], 0.014, 12, 4), leatherMat);
  reinR.name = 'reinR';
  head.add(reinR);

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

export default createHorse;