/**
 * Saguaro Cactus — Codels 3D model library
 * License: CC0-1.0 · Units: meters · Y-up · Front: +Z · Origin: center of the base (y = 0)
 * Triangles: 876 · Size (W × H × D): 1.84 × 3.61 × 0.62 m
 *
 * Usage:
 *   import { createCactus } from './cactus.js';
 *   
 *   const model = createCactus();
 *   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 createCactus() {
  const root = new THREE.Group();
  root.name = 'Cactus';

  // Materials
  const skinMat = new THREE.MeshStandardMaterial({ name: 'skin', color: 0x5a9350, roughness: 0.75, flatShading: true });
  const ribMat = new THREE.MeshStandardMaterial({ name: 'rib', color: 0x487640, roughness: 0.8, flatShading: true });
  const petalMat = new THREE.MeshStandardMaterial({ name: 'petal', color: 0xef6f96, roughness: 0.6, flatShading: true });
  const pollenMat = new THREE.MeshStandardMaterial({ name: 'pollen', color: 0xf6d14a, roughness: 0.6, flatShading: true });

  // Shared geometries
  const boxGeo = new THREE.BoxGeometry(0.0218, 2.9339, 0.0218);
  const octahedronGeo = new THREE.OctahedronGeometry(1, 0);
  const sphereGeo = new THREE.SphereGeometry(0.2053, 8, 3, 0, Math.PI * 2, 0, Math.PI / 2);
  const icosahedronGeo = new THREE.IcosahedronGeometry(0.0369, 0);

  // Parts
  const column = new THREE.Mesh(new THREE.CylinderGeometry(0.2923, 0.311, 3.189, 8), skinMat);
  column.name = 'column';
  column.position.set(0, 1.5945, 0);
  root.add(column);
  const top = new THREE.Mesh(new THREE.SphereGeometry(0.2923, 8, 3, 0, Math.PI * 2, 0, Math.PI / 2), skinMat);
  top.name = 'top';
  top.position.set(0, 3.189, 0);
  root.add(top);
  const rib1 = new THREE.Mesh(boxGeo, ribMat);
  rib1.name = 'rib1';
  rib1.position.set(0.1067, 1.4669, 0.2575);
  rib1.rotation.set(0, deg(22.5), 0);
  root.add(rib1);
  const rib2 = new THREE.Mesh(boxGeo, ribMat);
  rib2.name = 'rib2';
  rib2.position.set(0.2575, 1.4669, 0.1067);
  rib2.rotation.set(0, deg(67.5), 0);
  root.add(rib2);
  const rib3 = new THREE.Mesh(boxGeo, ribMat);
  rib3.name = 'rib3';
  rib3.position.set(0.2575, 1.4669, -0.1067);
  rib3.rotation.set(0, deg(112.5), 0);
  root.add(rib3);
  const rib4 = new THREE.Mesh(boxGeo, ribMat);
  rib4.name = 'rib4';
  rib4.position.set(0.1067, 1.4669, -0.2575);
  rib4.rotation.set(0, deg(157.5), 0);
  root.add(rib4);
  const rib5 = new THREE.Mesh(boxGeo, ribMat);
  rib5.name = 'rib5';
  rib5.position.set(-0.1067, 1.4669, -0.2575);
  rib5.rotation.set(0, deg(202.5), 0);
  root.add(rib5);
  const rib6 = new THREE.Mesh(boxGeo, ribMat);
  rib6.name = 'rib6';
  rib6.position.set(-0.2575, 1.4669, -0.1067);
  rib6.rotation.set(0, deg(247.5), 0);
  root.add(rib6);
  const rib7 = new THREE.Mesh(boxGeo, ribMat);
  rib7.name = 'rib7';
  rib7.position.set(-0.2575, 1.4669, 0.1067);
  rib7.rotation.set(0, deg(292.5), 0);
  root.add(rib7);
  const rib8 = new THREE.Mesh(boxGeo, ribMat);
  rib8.name = 'rib8';
  rib8.position.set(-0.1067, 1.4669, 0.2575);
  rib8.rotation.set(0, deg(337.5), 0);
  root.add(rib8);
  const topFlower = new THREE.Group();
  topFlower.name = 'topFlower';
  topFlower.position.set(0, 3.4845, 0);
  root.add(topFlower);
  const petal1 = new THREE.Mesh(octahedronGeo, petalMat);
  petal1.name = 'petal1';
  petal1.position.set(0.0995, 0.056, 0);
  petal1.rotation.set(0, 0, deg(32));
  petal1.scale.set(0.1368, 0.0348, 0.0746);
  topFlower.add(petal1);
  const petal2 = new THREE.Mesh(octahedronGeo, petalMat);
  petal2.name = 'petal2';
  petal2.position.set(0.0308, 0.056, -0.0946);
  petal2.rotation.set(0, deg(72), deg(32));
  petal2.scale.set(0.1368, 0.0348, 0.0746);
  topFlower.add(petal2);
  const petal3 = new THREE.Mesh(octahedronGeo, petalMat);
  petal3.name = 'petal3';
  petal3.position.set(-0.0805, 0.056, -0.0585);
  petal3.rotation.set(0, deg(144), deg(32));
  petal3.scale.set(0.1368, 0.0348, 0.0746);
  topFlower.add(petal3);
  const petal4 = new THREE.Mesh(octahedronGeo, petalMat);
  petal4.name = 'petal4';
  petal4.position.set(-0.0805, 0.056, 0.0585);
  petal4.rotation.set(0, deg(216), deg(32));
  petal4.scale.set(0.1368, 0.0348, 0.0746);
  topFlower.add(petal4);
  const petal5 = new THREE.Mesh(octahedronGeo, petalMat);
  petal5.name = 'petal5';
  petal5.position.set(0.0308, 0.056, 0.0946);
  petal5.rotation.set(0, deg(288), deg(32));
  petal5.scale.set(0.1368, 0.0348, 0.0746);
  topFlower.add(petal5);
  const center = new THREE.Mesh(new THREE.IcosahedronGeometry(0.056, 0), pollenMat);
  center.name = 'center';
  center.position.set(0, 0.0622, 0);
  topFlower.add(center);
  const arm1 = new THREE.Mesh(tube([[0, 1.3879, 0], [0.4342, 1.4289, 0], [0.687, 1.5726, 0], [0.701, 2.0475, 0], [0.701, 2.52, 0]], 0.2053, 14, 8), skinMat);
  arm1.name = 'arm1';
  root.add(arm1);
  const armTip1 = new THREE.Mesh(sphereGeo, skinMat);
  armTip1.name = 'armTip1';
  armTip1.position.set(0.701, 2.52, 0);
  root.add(armTip1);
  const armFlower1 = new THREE.Group();
  armFlower1.name = 'armFlower1';
  armFlower1.position.set(0.701, 2.7088, 0);
  root.add(armFlower1);
  const petal12 = new THREE.Mesh(octahedronGeo, petalMat);
  petal12.name = 'petal1';
  petal12.position.set(0.0657, 0.0369, 0);
  petal12.rotation.set(0, 0, deg(32));
  petal12.scale.set(0.0903, 0.023, 0.0493);
  armFlower1.add(petal12);
  const petal22 = new THREE.Mesh(octahedronGeo, petalMat);
  petal22.name = 'petal2';
  petal22.position.set(0.0203, 0.0369, -0.0625);
  petal22.rotation.set(0, deg(72), deg(32));
  petal22.scale.set(0.0903, 0.023, 0.0493);
  armFlower1.add(petal22);
  const petal32 = new THREE.Mesh(octahedronGeo, petalMat);
  petal32.name = 'petal3';
  petal32.position.set(-0.0531, 0.0369, -0.0386);
  petal32.rotation.set(0, deg(144), deg(32));
  petal32.scale.set(0.0903, 0.023, 0.0493);
  armFlower1.add(petal32);
  const petal42 = new THREE.Mesh(octahedronGeo, petalMat);
  petal42.name = 'petal4';
  petal42.position.set(-0.0531, 0.0369, 0.0386);
  petal42.rotation.set(0, deg(216), deg(32));
  petal42.scale.set(0.0903, 0.023, 0.0493);
  armFlower1.add(petal42);
  const petal52 = new THREE.Mesh(octahedronGeo, petalMat);
  petal52.name = 'petal5';
  petal52.position.set(0.0203, 0.0369, 0.0625);
  petal52.rotation.set(0, deg(288), deg(32));
  petal52.scale.set(0.0903, 0.023, 0.0493);
  armFlower1.add(petal52);
  const center2 = new THREE.Mesh(icosahedronGeo, pollenMat);
  center2.name = 'center';
  center2.position.set(0, 0.0411, 0);
  armFlower1.add(center2);
  const arm2 = new THREE.Mesh(tube([[0, 1.8429, 0], [-0.4342, 1.8839, 0], [-0.687, 2.0276, 0], [-0.701, 2.3485, 0], [-0.701, 2.695, 0]], 0.2053, 14, 8), skinMat);
  arm2.name = 'arm2';
  root.add(arm2);
  const armTip2 = new THREE.Mesh(sphereGeo, skinMat);
  armTip2.name = 'armTip2';
  armTip2.position.set(-0.701, 2.695, 0);
  root.add(armTip2);
  const armFlower2 = new THREE.Group();
  armFlower2.name = 'armFlower2';
  armFlower2.position.set(-0.701, 2.8838, 0);
  root.add(armFlower2);
  const petal13 = new THREE.Mesh(octahedronGeo, petalMat);
  petal13.name = 'petal1';
  petal13.position.set(0.0657, 0.0369, 0);
  petal13.rotation.set(0, 0, deg(32));
  petal13.scale.set(0.0903, 0.023, 0.0493);
  armFlower2.add(petal13);
  const petal23 = new THREE.Mesh(octahedronGeo, petalMat);
  petal23.name = 'petal2';
  petal23.position.set(0.0203, 0.0369, -0.0625);
  petal23.rotation.set(0, deg(72), deg(32));
  petal23.scale.set(0.0903, 0.023, 0.0493);
  armFlower2.add(petal23);
  const petal33 = new THREE.Mesh(octahedronGeo, petalMat);
  petal33.name = 'petal3';
  petal33.position.set(-0.0531, 0.0369, -0.0386);
  petal33.rotation.set(0, deg(144), deg(32));
  petal33.scale.set(0.0903, 0.023, 0.0493);
  armFlower2.add(petal33);
  const petal43 = new THREE.Mesh(octahedronGeo, petalMat);
  petal43.name = 'petal4';
  petal43.position.set(-0.0531, 0.0369, 0.0386);
  petal43.rotation.set(0, deg(216), deg(32));
  petal43.scale.set(0.0903, 0.023, 0.0493);
  armFlower2.add(petal43);
  const petal53 = new THREE.Mesh(octahedronGeo, petalMat);
  petal53.name = 'petal5';
  petal53.position.set(0.0203, 0.0369, 0.0625);
  petal53.rotation.set(0, deg(288), deg(32));
  petal53.scale.set(0.0903, 0.023, 0.0493);
  armFlower2.add(petal53);
  const center3 = new THREE.Mesh(icosahedronGeo, pollenMat);
  center3.name = 'center';
  center3.position.set(0, 0.0411, 0);
  armFlower2.add(center3);

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

export default createCactus;