/**
 * Bookshelf — Codels 3D model library
 * License: CC0-1.0 · Units: meters · Y-up · Front: +Z · Origin: center of the base (y = 0)
 * Triangles: 1,044 · Size (W × H × D): 0.94 × 1.51 × 0.35 m
 *
 * Usage:
 *   import { createBookshelf } from './bookshelf.js';
 *   
 *   const model = createBookshelf();
 *   model.position.set(0, 0, 0);
 *   scene.add(model);
 */
import * as THREE from 'three';

const deg = THREE.MathUtils.degToRad;

export function createBookshelf() {
  const root = new THREE.Group();
  root.name = 'Bookshelf';

  // Materials
  const woodMat = new THREE.MeshStandardMaterial({ name: 'wood', color: 0x8a5a33, roughness: 0.85, flatShading: true });
  const woodDarkMat = new THREE.MeshStandardMaterial({ name: 'woodDark', color: 0x4c321c, roughness: 0.95, flatShading: true });
  const redMat = new THREE.MeshStandardMaterial({ name: 'red', color: 0x9e3d38, roughness: 0.8, flatShading: true });
  const blueMat = new THREE.MeshStandardMaterial({ name: 'blue', color: 0x3b5878, roughness: 0.8, flatShading: true });
  const greenMat = new THREE.MeshStandardMaterial({ name: 'green', color: 0x4b6f44, roughness: 0.8, flatShading: true });
  const mustardMat = new THREE.MeshStandardMaterial({ name: 'mustard', color: 0xc49242, roughness: 0.8, flatShading: true });
  const creamMat = new THREE.MeshStandardMaterial({ name: 'cream', color: 0xd9cbab, roughness: 0.85, flatShading: true });
  const tealMat = new THREE.MeshStandardMaterial({ name: 'teal', color: 0x2e6163, roughness: 0.8, flatShading: true });
  const giltMat = new THREE.MeshStandardMaterial({ name: 'gilt', color: 0xe2c26a, roughness: 0.4, metalness: 0.3, flatShading: true });

  // Shared geometries
  const boxGeo = new THREE.BoxGeometry(0.03, 1.48, 0.32);
  const boxGeo2 = new THREE.BoxGeometry(0.84, 0.025, 0.293);

  // Parts
  const side = new THREE.Mesh(boxGeo, woodMat);
  side.name = 'side';
  side.position.set(-0.435, 0.74, 0);
  root.add(side);
  const side2 = new THREE.Mesh(boxGeo, woodMat);
  side2.name = 'side';
  side2.position.set(0.435, 0.74, 0);
  root.add(side2);
  const back = new THREE.Mesh(new THREE.BoxGeometry(0.84, 1.46, 0.012), woodDarkMat);
  back.name = 'back';
  back.position.set(0, 0.75, -0.154);
  root.add(back);
  const plinth = new THREE.Mesh(new THREE.BoxGeometry(0.84, 0.055, 0.278), woodDarkMat);
  plinth.name = 'plinth';
  plinth.position.set(0, 0.0275, -0.009);
  root.add(plinth);
  const crown = new THREE.Mesh(new THREE.BoxGeometry(0.94, 0.035, 0.35), woodMat);
  crown.name = 'crown';
  crown.position.set(0, 1.4975, 0.005);
  root.add(crown);
  const crownTrim = new THREE.Mesh(new THREE.BoxGeometry(0.91, 0.02, 0.33), woodDarkMat);
  crownTrim.name = 'crownTrim';
  crownTrim.position.set(0, 1.468, 0.002);
  root.add(crownTrim);
  const shelf1 = new THREE.Mesh(boxGeo2, woodMat);
  shelf1.name = 'shelf1';
  shelf1.position.set(0, 0.0675, -0.0015);
  root.add(shelf1);
  const book = new THREE.Mesh(new THREE.BoxGeometry(0.0515, 0.2831, 0.1719), blueMat);
  book.name = 'book';
  book.position.set(-0.3883, 0.2216, 0.0513);
  root.add(book);
  const spineBand = new THREE.Mesh(new THREE.BoxGeometry(0.0535, 0.012, 0.004), giltMat);
  spineBand.name = 'spineBand';
  spineBand.position.set(-0.3883, 0.3065, 0.1382);
  root.add(spineBand);
  const book2 = new THREE.Mesh(new THREE.BoxGeometry(0.032, 0.2406, 0.2181), mustardMat);
  book2.name = 'book';
  book2.position.set(-0.3445, 0.2003, 0.0206);
  root.add(book2);
  const book3 = new THREE.Mesh(new THREE.BoxGeometry(0.0293, 0.2054, 0.2238), redMat);
  book3.name = 'book';
  book3.position.set(-0.3119, 0.1827, 0.0163);
  root.add(book3);
  const book4 = new THREE.Mesh(new THREE.BoxGeometry(0.0519, 0.2608, 0.2145), tealMat);
  book4.name = 'book';
  book4.position.set(-0.2693, 0.2104, 0.0298);
  root.add(book4);
  const book5 = new THREE.Mesh(new THREE.BoxGeometry(0.0509, 0.2045, 0.2263), greenMat);
  book5.name = 'book';
  book5.position.set(-0.2159, 0.1823, 0.0194);
  root.add(book5);
  const book6 = new THREE.Mesh(new THREE.BoxGeometry(0.0503, 0.216, 0.1968), tealMat);
  book6.name = 'book';
  book6.position.set(-0.1633, 0.188, 0.0193);
  root.add(book6);
  const spineBand2 = new THREE.Mesh(new THREE.BoxGeometry(0.0523, 0.012, 0.004), giltMat);
  spineBand2.name = 'spineBand';
  spineBand2.position.set(-0.1633, 0.2528, 0.1187);
  root.add(spineBand2);
  const bookLeaning = new THREE.Mesh(new THREE.BoxGeometry(0.0329, 0.1907, 0.1915), greenMat);
  bookLeaning.name = 'bookLeaning';
  bookLeaning.position.set(-0.0878, 0.1752, 0.0383);
  bookLeaning.rotation.set(0, 0, deg(20.1543));
  root.add(bookLeaning);
  const book7 = new THREE.Mesh(new THREE.BoxGeometry(0.031, 0.2041, 0.1931), greenMat);
  book7.name = 'book';
  book7.position.set(0.034, 0.1821, 0.0319);
  root.add(book7);
  const book8 = new THREE.Mesh(new THREE.BoxGeometry(0.0512, 0.2027, 0.1897), tealMat);
  book8.name = 'book';
  book8.position.set(0.0771, 0.1814, 0.0242);
  root.add(book8);
  const spineBand3 = new THREE.Mesh(new THREE.BoxGeometry(0.0532, 0.012, 0.004), giltMat);
  spineBand3.name = 'spineBand';
  spineBand3.position.set(0.0771, 0.2421, 0.1201);
  root.add(spineBand3);
  const book9 = new THREE.Mesh(new THREE.BoxGeometry(0.033, 0.2683, 0.2204), greenMat);
  book9.name = 'book';
  book9.position.set(0.1211, 0.2142, 0.0171);
  root.add(book9);
  const book10 = new THREE.Mesh(new THREE.BoxGeometry(0.0307, 0.2083, 0.1768), mustardMat);
  book10.name = 'book';
  book10.position.set(0.155, 0.1842, 0.0491);
  root.add(book10);
  const book11 = new THREE.Mesh(new THREE.BoxGeometry(0.0453, 0.2288, 0.1702), creamMat);
  book11.name = 'book';
  book11.position.set(0.195, 0.1944, 0.0419);
  root.add(book11);
  const spineBand4 = new THREE.Mesh(new THREE.BoxGeometry(0.0473, 0.012, 0.004), giltMat);
  spineBand4.name = 'spineBand';
  spineBand4.position.set(0.195, 0.2631, 0.128);
  root.add(spineBand4);
  const book12 = new THREE.Mesh(new THREE.BoxGeometry(0.0409, 0.2839, 0.1967), blueMat);
  book12.name = 'book';
  book12.position.set(0.2401, 0.222, 0.0393);
  root.add(book12);
  const book13 = new THREE.Mesh(new THREE.BoxGeometry(0.0256, 0.2016, 0.1893), creamMat);
  book13.name = 'book';
  book13.position.set(0.2753, 0.1808, 0.0314);
  root.add(book13);
  const bookLeaning2 = new THREE.Mesh(new THREE.BoxGeometry(0.0257, 0.1778, 0.2099), tealMat);
  bookLeaning2.name = 'bookLeaning';
  bookLeaning2.position.set(0.3336, 0.1677, 0.0143);
  bookLeaning2.rotation.set(0, 0, deg(20.7318));
  root.add(bookLeaning2);
  const shelf2 = new THREE.Mesh(boxGeo2, woodMat);
  shelf2.name = 'shelf2';
  shelf2.position.set(0, 0.4125, -0.0015);
  root.add(shelf2);
  const book14 = new THREE.Mesh(new THREE.BoxGeometry(0.0458, 0.2217, 0.2236), tealMat);
  book14.name = 'book';
  book14.position.set(-0.3911, 0.5359, 0.0221);
  root.add(book14);
  const book15 = new THREE.Mesh(new THREE.BoxGeometry(0.0305, 0.2093, 0.2236), tealMat);
  book15.name = 'book';
  book15.position.set(-0.351, 0.5297, 0.0095);
  root.add(book15);
  const book16 = new THREE.Mesh(new THREE.BoxGeometry(0.0299, 0.2388, 0.1923), mustardMat);
  book16.name = 'book';
  book16.position.set(-0.3188, 0.5444, 0.0403);
  root.add(book16);
  const book17 = new THREE.Mesh(new THREE.BoxGeometry(0.0491, 0.2661, 0.226), greenMat);
  book17.name = 'book';
  book17.position.set(-0.2772, 0.5581, 0.0136);
  root.add(book17);
  const book18 = new THREE.Mesh(new THREE.BoxGeometry(0.0244, 0.2238, 0.2066), greenMat);
  book18.name = 'book';
  book18.position.set(-0.2385, 0.5369, 0.026);
  root.add(book18);
  const bookLeaning3 = new THREE.Mesh(new THREE.BoxGeometry(0.0278, 0.1801, 0.1809), mustardMat);
  bookLeaning3.name = 'bookLeaning';
  bookLeaning3.position.set(-0.1805, 0.5144, 0.0378);
  bookLeaning3.rotation.set(0, 0, deg(19.9778));
  root.add(bookLeaning3);
  const book19 = new THREE.Mesh(new THREE.BoxGeometry(0.0505, 0.2787, 0.2111), greenMat);
  book19.name = 'book';
  book19.position.set(-0.0643, 0.5644, 0.0151);
  root.add(book19);
  const spineBand5 = new THREE.Mesh(new THREE.BoxGeometry(0.0525, 0.012, 0.004), giltMat);
  spineBand5.name = 'spineBand';
  spineBand5.position.set(-0.0643, 0.648, 0.1216);
  root.add(spineBand5);
  const book20 = new THREE.Mesh(new THREE.BoxGeometry(0.0243, 0.269, 0.2074), tealMat);
  book20.name = 'book';
  book20.position.set(-0.0249, 0.5595, 0.0147);
  root.add(book20);
  const book21 = new THREE.Mesh(new THREE.BoxGeometry(0.0257, 0.2744, 0.2104), greenMat);
  book21.name = 'book';
  book21.position.set(0.0021, 0.5622, 0.0239);
  root.add(book21);
  const book22 = new THREE.Mesh(new THREE.BoxGeometry(0.0496, 0.2827, 0.1971), tealMat);
  book22.name = 'book';
  book22.position.set(0.0417, 0.5664, 0.0253);
  root.add(book22);
  const book23 = new THREE.Mesh(new THREE.BoxGeometry(0.043, 0.2817, 0.1776), blueMat);
  book23.name = 'book';
  book23.position.set(0.09, 0.5659, 0.0346);
  root.add(book23);
  const book24 = new THREE.Mesh(new THREE.BoxGeometry(0.041, 0.2559, 0.1772), greenMat);
  book24.name = 'book';
  book24.position.set(0.134, 0.553, 0.0347);
  root.add(book24);
  const spineBand6 = new THREE.Mesh(new THREE.BoxGeometry(0.043, 0.012, 0.004), giltMat);
  spineBand6.name = 'spineBand';
  spineBand6.position.set(0.134, 0.6298, 0.1243);
  root.add(spineBand6);
  const bookLeaning4 = new THREE.Mesh(new THREE.BoxGeometry(0.0324, 0.2339, 0.1876), tealMat);
  bookLeaning4.name = 'bookLeaning';
  bookLeaning4.position.set(0.2159, 0.5393, 0.0402);
  bookLeaning4.rotation.set(0, 0, deg(22.3458));
  root.add(bookLeaning4);
  const book25 = new THREE.Mesh(new THREE.BoxGeometry(0.0366, 0.2465, 0.1835), blueMat);
  book25.name = 'book';
  book25.position.set(0.3515, 0.5483, 0.0361);
  root.add(book25);
  const book26 = new THREE.Mesh(new THREE.BoxGeometry(0.0422, 0.2454, 0.2171), blueMat);
  book26.name = 'book';
  book26.position.set(0.3929, 0.5477, 0.0085);
  root.add(book26);
  const spineBand7 = new THREE.Mesh(new THREE.BoxGeometry(0.0442, 0.012, 0.004), giltMat);
  spineBand7.name = 'spineBand';
  spineBand7.position.set(0.3929, 0.6213, 0.118);
  root.add(spineBand7);
  const shelf3 = new THREE.Mesh(boxGeo2, woodMat);
  shelf3.name = 'shelf3';
  shelf3.position.set(0, 0.7575, -0.0015);
  root.add(shelf3);
  const book27 = new THREE.Mesh(new THREE.BoxGeometry(0.0409, 0.2472, 0.2237), blueMat);
  book27.name = 'book';
  book27.position.set(-0.239, 0.8936, 0.0193);
  root.add(book27);
  const book28 = new THREE.Mesh(new THREE.BoxGeometry(0.0344, 0.2671, 0.2289), creamMat);
  book28.name = 'book';
  book28.position.set(-0.1994, 0.9036, 0.011);
  root.add(book28);
  const book29 = new THREE.Mesh(new THREE.BoxGeometry(0.035, 0.2556, 0.2292), tealMat);
  book29.name = 'book';
  book29.position.set(-0.1627, 0.8978, 0.0105);
  root.add(book29);
  const book30 = new THREE.Mesh(new THREE.BoxGeometry(0.0382, 0.2061, 0.1959), redMat);
  book30.name = 'book';
  book30.position.set(-0.1241, 0.8731, 0.0413);
  root.add(book30);
  const book31 = new THREE.Mesh(new THREE.BoxGeometry(0.0317, 0.2811, 0.2207), greenMat);
  book31.name = 'book';
  book31.position.set(-0.0871, 0.9106, 0.0274);
  root.add(book31);
  const book32 = new THREE.Mesh(new THREE.BoxGeometry(0.0455, 0.2047, 0.2139), blueMat);
  book32.name = 'book';
  book32.position.set(-0.0465, 0.8724, 0.0087);
  root.add(book32);
  const book33 = new THREE.Mesh(new THREE.BoxGeometry(0.0339, 0.2706, 0.1739), blueMat);
  book33.name = 'book';
  book33.position.set(-0.0049, 0.9053, 0.0356);
  root.add(book33);
  const book34 = new THREE.Mesh(new THREE.BoxGeometry(0.0372, 0.245, 0.1935), blueMat);
  book34.name = 'book';
  book34.position.set(0.0327, 0.8925, 0.0422);
  root.add(book34);
  const book35 = new THREE.Mesh(new THREE.BoxGeometry(0.0467, 0.2168, 0.2055), blueMat);
  book35.name = 'book';
  book35.position.set(0.0766, 0.8784, 0.0323);
  root.add(book35);
  const spineBand8 = new THREE.Mesh(new THREE.BoxGeometry(0.0487, 0.012, 0.004), giltMat);
  spineBand8.name = 'spineBand';
  spineBand8.position.set(0.0766, 0.9435, 0.1361);
  root.add(spineBand8);
  const book36 = new THREE.Mesh(new THREE.BoxGeometry(0.0301, 0.2493, 0.1942), greenMat);
  book36.name = 'book';
  book36.position.set(0.117, 0.8947, 0.018);
  root.add(book36);
  const book37 = new THREE.Mesh(new THREE.BoxGeometry(0.0348, 0.2027, 0.1738), mustardMat);
  book37.name = 'book';
  book37.position.set(0.1514, 0.8714, 0.0478);
  root.add(book37);
  const book38 = new THREE.Mesh(new THREE.BoxGeometry(0.0448, 0.2584, 0.1756), tealMat);
  book38.name = 'book';
  book38.position.set(0.1932, 0.8992, 0.0502);
  root.add(book38);
  const spineBand9 = new THREE.Mesh(new THREE.BoxGeometry(0.0468, 0.012, 0.004), giltMat);
  spineBand9.name = 'spineBand';
  spineBand9.position.set(0.1932, 0.9768, 0.139);
  root.add(spineBand9);
  const book39 = new THREE.Mesh(new THREE.BoxGeometry(0.046, 0.2289, 0.1846), greenMat);
  book39.name = 'book';
  book39.position.set(0.2406, 0.8845, 0.03);
  root.add(book39);
  const book40 = new THREE.Mesh(new THREE.BoxGeometry(0.0299, 0.2351, 0.2285), tealMat);
  book40.name = 'book';
  book40.position.set(0.2806, 0.8876, 0.0173);
  root.add(book40);
  const book41 = new THREE.Mesh(new THREE.BoxGeometry(0.0497, 0.2559, 0.1721), mustardMat);
  book41.name = 'book';
  book41.position.set(0.3224, 0.898, 0.0507);
  root.add(book41);
  const spineBand10 = new THREE.Mesh(new THREE.BoxGeometry(0.0517, 0.012, 0.004), giltMat);
  spineBand10.name = 'spineBand';
  spineBand10.position.set(0.3224, 0.9747, 0.1377);
  root.add(spineBand10);
  const book42 = new THREE.Mesh(new THREE.BoxGeometry(0.0319, 0.2748, 0.2192), greenMat);
  book42.name = 'book';
  book42.position.set(0.3652, 0.9074, 0.0284);
  root.add(book42);
  const book43 = new THREE.Mesh(new THREE.BoxGeometry(0.0309, 0.2543, 0.1703), mustardMat);
  book43.name = 'book';
  book43.position.set(0.3986, 0.8972, 0.0407);
  root.add(book43);
  const shelf4 = new THREE.Mesh(boxGeo2, woodMat);
  shelf4.name = 'shelf4';
  shelf4.position.set(0, 1.1025, -0.0015);
  root.add(shelf4);
  const book44 = new THREE.Mesh(new THREE.BoxGeometry(0.0389, 0.2281, 0.2224), blueMat);
  book44.name = 'book';
  book44.position.set(-0.3946, 1.2291, 0.0182);
  root.add(book44);
  const book45 = new THREE.Mesh(new THREE.BoxGeometry(0.0324, 0.2064, 0.2179), tealMat);
  book45.name = 'book';
  book45.position.set(-0.357, 1.2182, 0.0177);
  root.add(book45);
  const book46 = new THREE.Mesh(new THREE.BoxGeometry(0.0382, 0.2212, 0.2195), creamMat);
  book46.name = 'book';
  book46.position.set(-0.3197, 1.2256, 0.0156);
  root.add(book46);
  const book47 = new THREE.Mesh(new THREE.BoxGeometry(0.0296, 0.2225, 0.1851), greenMat);
  book47.name = 'book';
  book47.position.set(-0.2838, 1.2263, 0.0371);
  root.add(book47);
  const book48 = new THREE.Mesh(new THREE.BoxGeometry(0.0372, 0.2599, 0.1771), tealMat);
  book48.name = 'book';
  book48.position.set(-0.2484, 1.245, 0.0295);
  root.add(book48);
  const book49 = new THREE.Mesh(new THREE.BoxGeometry(0.0491, 0.2477, 0.1941), redMat);
  book49.name = 'book';
  book49.position.set(-0.2033, 1.2389, 0.0196);
  root.add(book49);
  const spineBand11 = new THREE.Mesh(new THREE.BoxGeometry(0.0511, 0.012, 0.004), giltMat);
  spineBand11.name = 'spineBand';
  spineBand11.position.set(-0.2033, 1.3132, 0.1177);
  root.add(spineBand11);
  const book50 = new THREE.Mesh(new THREE.BoxGeometry(0.0492, 0.2343, 0.1743), creamMat);
  book50.name = 'book';
  book50.position.set(-0.1522, 1.2322, 0.0414);
  root.add(book50);
  const book51 = new THREE.Mesh(new THREE.BoxGeometry(0.0349, 0.2383, 0.2296), blueMat);
  book51.name = 'book';
  book51.position.set(-0.1081, 1.2342, 0.006);
  root.add(book51);
  const book52 = new THREE.Mesh(new THREE.BoxGeometry(0.0314, 0.2149, 0.1748), greenMat);
  book52.name = 'book';
  book52.position.set(-0.0729, 1.2225, 0.0421);
  root.add(book52);
  const book53 = new THREE.Mesh(new THREE.BoxGeometry(0.028, 0.266, 0.2042), creamMat);
  book53.name = 'book';
  book53.position.set(-0.0412, 1.248, 0.0354);
  root.add(book53);
  const book54 = new THREE.Mesh(new THREE.BoxGeometry(0.0362, 0.2833, 0.1832), redMat);
  book54.name = 'book';
  book54.position.set(-0.0071, 1.2567, 0.0392);
  root.add(book54);
  const book55 = new THREE.Mesh(new THREE.BoxGeometry(0.0448, 0.2444, 0.2063), blueMat);
  book55.name = 'book';
  book55.position.set(0.0355, 1.2372, 0.024);
  root.add(book55);
  const book56 = new THREE.Mesh(new THREE.BoxGeometry(0.0252, 0.2056, 0.1909), redMat);
  book56.name = 'book';
  book56.position.set(0.0725, 1.2178, 0.0259);
  root.add(book56);
  const book57 = new THREE.Mesh(new THREE.BoxGeometry(0.0487, 0.2194, 0.1759), blueMat);
  book57.name = 'book';
  book57.position.set(0.1114, 1.2247, 0.0394);
  root.add(book57);
  const book58 = new THREE.Mesh(new THREE.BoxGeometry(0.0357, 0.2736, 0.2046), redMat);
  book58.name = 'book';
  book58.position.set(0.1556, 1.2518, 0.0173);
  root.add(book58);
  const book59 = new THREE.Mesh(new THREE.BoxGeometry(0.0359, 0.2281, 0.2292), creamMat);
  book59.name = 'book';
  book59.position.set(0.1934, 1.2291, 0.0194);
  root.add(book59);
  const bookLeaning5 = new THREE.Mesh(new THREE.BoxGeometry(0.0317, 0.1992, 0.1713), mustardMat);
  bookLeaning5.name = 'bookLeaning';
  bookLeaning5.position.set(0.2561, 1.2151, 0.0504);
  bookLeaning5.rotation.set(0, 0, deg(16.0143));
  root.add(bookLeaning5);
  const book60 = new THREE.Mesh(new THREE.BoxGeometry(0.0255, 0.2441, 0.17), tealMat);
  book60.name = 'book';
  book60.position.set(0.3799, 1.2371, 0.031);
  root.add(book60);
  const topBoard = new THREE.Mesh(new THREE.BoxGeometry(0.84, 0.045, 0.293), woodMat);
  topBoard.name = 'topBoard';
  topBoard.position.set(0, 1.4575, -0.0015);
  root.add(topBoard);

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

export default createBookshelf;