/**
 * Fuel Tank — Codels 3D model library
 * License: CC0-1.0 · Units: meters · Y-up · Front: +Z · Origin: center of the base (y = 0)
 * Triangles: 1,464 · Size (W × H × D): 1.90 × 3.06 × 1.93 m
 *
 * Usage:
 *   import { createFuelTank } from './fuel-tank.js';
 *   
 *   const model = createFuelTank();
 *   model.position.set(0, 0, 0);
 *   scene.add(model);
 */
import * as THREE from 'three';

const deg = THREE.MathUtils.degToRad;

// Revolve a 2D profile [[radius, y], ...] around the Y axis.
function lathe(points, segments, phiStart = 0, phiLength = Math.PI * 2) {
  return new THREE.LatheGeometry(points.map(([x, y]) => new THREE.Vector2(x, y)), segments, phiStart, phiLength);
}

// 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);
}

// 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 createFuelTank() {
  const root = new THREE.Group();
  root.name = 'FuelTank';

  // Materials
  const tankMat = new THREE.MeshStandardMaterial({ name: 'tank', color: 0xd7dbe0, roughness: 0.45, metalness: 0.3, flatShading: true });
  const darkMat = new THREE.MeshStandardMaterial({ name: 'dark', color: 0x2f343c, roughness: 0.6, metalness: 0.35, flatShading: true });
  const metalMat = new THREE.MeshStandardMaterial({ name: 'metal', color: 0x7d858f, roughness: 0.4, metalness: 0.6, flatShading: true });
  const hazardMat = new THREE.MeshStandardMaterial({ name: 'hazard', color: 0xf2b630, roughness: 0.55, metalness: 0.2, flatShading: true });
  const valveMat = new THREE.MeshStandardMaterial({ name: 'valve', color: 0xd8473a, roughness: 0.5, metalness: 0.3, flatShading: true });
  const fuelMat = new THREE.MeshStandardMaterial({ name: 'fuel', color: 0x8cff3a, roughness: 0.3, emissive: 0x8cff3a, emissiveIntensity: 1.2, flatShading: true });
  const glassMat = new THREE.MeshStandardMaterial({ name: 'glass', color: 0xcdeefa, roughness: 0.1, metalness: 0.1, transparent: true, opacity: 0.45 });
  const amberMat = new THREE.MeshStandardMaterial({ name: 'amber', color: 0xffb648, roughness: 0.4, emissive: 0xffa526, emissiveIntensity: 1.3, flatShading: true });
  const gaugeMat = new THREE.MeshStandardMaterial({ name: 'gauge', color: 0xf4f6f8, roughness: 0.3, emissive: 0xdff6ff, emissiveIntensity: 0.6, flatShading: true });

  // Shared geometries
  const cylinderGeo = new THREE.CylinderGeometry(0.055, 0.07, 0.78, 6);
  const boxGeo = new THREE.BoxGeometry(0.22, 0.06, 0.22);
  const cylinderGeo2 = new THREE.CylinderGeometry(0.705, 0.705, 0.09, 12);
  const boxGeo2 = new THREE.BoxGeometry(0.1, 0.06, 0.16);
  const boxGeo3 = new THREE.BoxGeometry(0.05, 0.012, 0.02);
  const torusGeo = new THREE.TorusGeometry(0.12, 0.018, 3, 8);
  const boxGeo4 = new THREE.BoxGeometry(0.22, 0.022, 0.022);
  const boxGeo5 = new THREE.BoxGeometry(0.022, 0.22, 0.022);
  const cylinderGeo3 = new THREE.CylinderGeometry(0.035, 0.035, 0.06, 6);

  // Parts
  const skid = new THREE.Mesh(new THREE.BoxGeometry(1.9, 0.1, 1.9), darkMat);
  skid.name = 'skid';
  skid.position.set(0, 0.05, 0);
  root.add(skid);
  const deck = new THREE.Mesh(new THREE.BoxGeometry(1.7, 0.04, 1.7), metalMat);
  deck.name = 'deck';
  deck.position.set(0, 0.12, 0);
  root.add(deck);
  const hazardPlate = new THREE.Group();
  hazardPlate.name = 'hazardPlate';
  hazardPlate.position.set(0, 0.07, 0.96);
  root.add(hazardPlate);
  const plate = new THREE.Mesh(new THREE.BoxGeometry(1.7, 0.14, 0.03), darkMat);
  plate.name = 'plate';
  hazardPlate.add(plate);
  const extrude5 = new THREE.Mesh(extrude([[-0.75, -0.055], [-0.69, -0.055], [-0.63, 0.055], [-0.69, 0.055]], 0.02), hazardMat);
  extrude5.position.set(0, 0, 0.012);
  hazardPlate.add(extrude5);
  const extrude6 = new THREE.Mesh(extrude([[-0.57, -0.055], [-0.51, -0.055], [-0.45, 0.055], [-0.51, 0.055]], 0.02), hazardMat);
  extrude6.position.set(0, 0, 0.012);
  hazardPlate.add(extrude6);
  const extrude7 = new THREE.Mesh(extrude([[-0.39, -0.055], [-0.33, -0.055], [-0.27, 0.055], [-0.33, 0.055]], 0.02), hazardMat);
  extrude7.position.set(0, 0, 0.012);
  hazardPlate.add(extrude7);
  const extrude8 = new THREE.Mesh(extrude([[-0.21, -0.055], [-0.15, -0.055], [-0.09, 0.055], [-0.15, 0.055]], 0.02), hazardMat);
  extrude8.position.set(0, 0, 0.012);
  hazardPlate.add(extrude8);
  const extrude9 = new THREE.Mesh(extrude([[-0.03, -0.055], [0.03, -0.055], [0.09, 0.055], [0.03, 0.055]], 0.02), hazardMat);
  extrude9.position.set(0, 0, 0.012);
  hazardPlate.add(extrude9);
  const extrude10 = new THREE.Mesh(extrude([[0.15, -0.055], [0.21, -0.055], [0.27, 0.055], [0.21, 0.055]], 0.02), hazardMat);
  extrude10.position.set(0, 0, 0.012);
  hazardPlate.add(extrude10);
  const extrude11 = new THREE.Mesh(extrude([[0.33, -0.055], [0.39, -0.055], [0.45, 0.055], [0.39, 0.055]], 0.02), hazardMat);
  extrude11.position.set(0, 0, 0.012);
  hazardPlate.add(extrude11);
  const extrude12 = new THREE.Mesh(extrude([[0.51, -0.055], [0.57, -0.055], [0.63, 0.055], [0.57, 0.055]], 0.02), hazardMat);
  extrude12.position.set(0, 0, 0.012);
  hazardPlate.add(extrude12);
  const extrude13 = new THREE.Mesh(extrude([[0.69, -0.055], [0.75, -0.055], [0.81, 0.055], [0.75, 0.055]], 0.02), hazardMat);
  extrude13.position.set(0, 0, 0.012);
  hazardPlate.add(extrude13);
  const leg1 = new THREE.Mesh(cylinderGeo, metalMat);
  leg1.name = 'leg1';
  leg1.position.set(0.4596, 0.5, 0.4596);
  leg1.rotation.set(deg(-15.7932), deg(-2.2042), deg(15.7932));
  root.add(leg1);
  const legFoot1 = new THREE.Mesh(boxGeo, darkMat);
  legFoot1.name = 'legFoot1';
  legFoot1.position.set(0.5657, 0.17, 0.5657);
  legFoot1.rotation.set(0, deg(45), 0);
  root.add(legFoot1);
  const leg2 = new THREE.Mesh(cylinderGeo, metalMat);
  leg2.name = 'leg2';
  leg2.position.set(0.4596, 0.5, -0.4596);
  leg2.rotation.set(deg(15.7932), deg(2.2042), deg(15.7932));
  root.add(leg2);
  const legFoot2 = new THREE.Mesh(boxGeo, darkMat);
  legFoot2.name = 'legFoot2';
  legFoot2.position.set(0.5657, 0.17, -0.5657);
  legFoot2.rotation.set(0, deg(45), 0);
  root.add(legFoot2);
  const leg3 = new THREE.Mesh(cylinderGeo, metalMat);
  leg3.name = 'leg3';
  leg3.position.set(-0.4596, 0.5, -0.4596);
  leg3.rotation.set(deg(15.7932), deg(-2.2042), deg(-15.7932));
  root.add(leg3);
  const legFoot3 = new THREE.Mesh(boxGeo, darkMat);
  legFoot3.name = 'legFoot3';
  legFoot3.position.set(-0.5657, 0.17, -0.5657);
  legFoot3.rotation.set(0, deg(45), 0);
  root.add(legFoot3);
  const leg4 = new THREE.Mesh(cylinderGeo, metalMat);
  leg4.name = 'leg4';
  leg4.position.set(-0.4596, 0.5, 0.4596);
  leg4.rotation.set(deg(-15.7932), deg(2.2042), deg(-15.7932));
  root.add(leg4);
  const legFoot4 = new THREE.Mesh(boxGeo, darkMat);
  legFoot4.name = 'legFoot4';
  legFoot4.position.set(-0.5657, 0.17, 0.5657);
  legFoot4.rotation.set(0, deg(45), 0);
  root.add(legFoot4);
  const vessel = new THREE.Mesh(lathe([[0.001, 0.38], [0.374, 0.452], [0.5848, 0.588], [0.68, 0.78], [0.68, 2.18], [0.5848, 2.372], [0.374, 2.508], [0.001, 2.58]], 12), tankMat);
  vessel.name = 'vessel';
  vessel.rotation.set(0, deg(15), 0);
  root.add(vessel);
  const cylinder23 = new THREE.Mesh(cylinderGeo2, darkMat);
  cylinder23.position.set(0, 0.8, 0);
  cylinder23.rotation.set(0, deg(15), 0);
  root.add(cylinder23);
  const cylinder24 = new THREE.Mesh(cylinderGeo2, darkMat);
  cylinder24.position.set(0, 2.16, 0);
  cylinder24.rotation.set(0, deg(15), 0);
  root.add(cylinder24);
  const hazardBand = new THREE.Mesh(new THREE.CylinderGeometry(0.695, 0.695, 0.2, 16), darkMat);
  hazardBand.name = 'hazardBand';
  hazardBand.position.set(0, 1.73, 0);
  root.add(hazardBand);
  const hazardStripe1 = new THREE.Mesh(new THREE.CylinderGeometry(0.702, 0.702, 0.2, 1, 1, false, 0, 0.3927), hazardMat);
  hazardStripe1.name = 'hazardStripe1';
  hazardStripe1.position.set(0, 1.73, 0);
  root.add(hazardStripe1);
  const hazardStripe2 = new THREE.Mesh(new THREE.CylinderGeometry(0.702, 0.702, 0.2, 1, 1, false, Math.PI / 4, 0.3927), hazardMat);
  hazardStripe2.name = 'hazardStripe2';
  hazardStripe2.position.set(0, 1.73, 0);
  root.add(hazardStripe2);
  const hazardStripe3 = new THREE.Mesh(new THREE.CylinderGeometry(0.702, 0.702, 0.2, 1, 1, false, Math.PI / 2, 0.3927), hazardMat);
  hazardStripe3.name = 'hazardStripe3';
  hazardStripe3.position.set(0, 1.73, 0);
  root.add(hazardStripe3);
  const hazardStripe4 = new THREE.Mesh(new THREE.CylinderGeometry(0.702, 0.702, 0.2, 1, 1, false, Math.PI * 0.75, 0.3927), hazardMat);
  hazardStripe4.name = 'hazardStripe4';
  hazardStripe4.position.set(0, 1.73, 0);
  root.add(hazardStripe4);
  const hazardStripe5 = new THREE.Mesh(new THREE.CylinderGeometry(0.702, 0.702, 0.2, 1, 1, false, Math.PI, 0.3927), hazardMat);
  hazardStripe5.name = 'hazardStripe5';
  hazardStripe5.position.set(0, 1.73, 0);
  root.add(hazardStripe5);
  const hazardStripe6 = new THREE.Mesh(new THREE.CylinderGeometry(0.702, 0.702, 0.2, 1, 1, false, Math.PI * 1.25, 0.3927), hazardMat);
  hazardStripe6.name = 'hazardStripe6';
  hazardStripe6.position.set(0, 1.73, 0);
  root.add(hazardStripe6);
  const hazardStripe7 = new THREE.Mesh(new THREE.CylinderGeometry(0.702, 0.702, 0.2, 1, 1, false, Math.PI * 1.5, 0.3927), hazardMat);
  hazardStripe7.name = 'hazardStripe7';
  hazardStripe7.position.set(0, 1.73, 0);
  root.add(hazardStripe7);
  const hazardStripe8 = new THREE.Mesh(new THREE.CylinderGeometry(0.702, 0.702, 0.2, 1, 1, false, Math.PI * 1.75, 0.3927), hazardMat);
  hazardStripe8.name = 'hazardStripe8';
  hazardStripe8.position.set(0, 1.73, 0);
  root.add(hazardStripe8);
  const box34 = new THREE.Mesh(boxGeo2, metalMat);
  box34.position.set(0, 0.79, 0.73);
  root.add(box34);
  const box35 = new THREE.Mesh(boxGeo2, metalMat);
  box35.position.set(0, 2.17, 0.73);
  root.add(box35);
  const sightGlass = new THREE.Mesh(new THREE.CylinderGeometry(0.05, 0.05, 1.3, 8), glassMat);
  sightGlass.name = 'sightGlass';
  sightGlass.position.set(0, 1.48, 0.79);
  root.add(sightGlass);
  const fuelLevel = new THREE.Mesh(new THREE.CylinderGeometry(0.034, 0.034, 0.91, 6), fuelMat);
  fuelLevel.name = 'fuelLevel';
  fuelLevel.position.set(0, 1.285, 0.79);
  root.add(fuelLevel);
  const box38 = new THREE.Mesh(boxGeo3, darkMat);
  box38.position.set(0.075, 1.155, 0.79);
  root.add(box38);
  const box39 = new THREE.Mesh(boxGeo3, darkMat);
  box39.position.set(0.075, 1.48, 0.79);
  root.add(box39);
  const box40 = new THREE.Mesh(boxGeo3, darkMat);
  box40.position.set(0.075, 1.805, 0.79);
  root.add(box40);
  const gaugeStem = new THREE.Mesh(new THREE.CylinderGeometry(0.025, 0.025, 0.154, 6), metalMat);
  gaugeStem.name = 'gaugeStem';
  gaugeStem.position.set(0.4043, 1.13, 0.5994);
  gaugeStem.rotation.set(deg(69.3345), deg(-27.6191), deg(-39.1319));
  root.add(gaugeStem);
  const gauge = new THREE.Group();
  gauge.name = 'gauge';
  gauge.position.set(0.4641, 1.13, 0.6881);
  gauge.rotation.set(0, deg(34), 0);
  root.add(gauge);
  const gaugeBody = new THREE.Mesh(new THREE.CylinderGeometry(0.12, 0.12, 0.06, 10), darkMat);
  gaugeBody.name = 'gaugeBody';
  gaugeBody.rotation.set(deg(90), 0, 0);
  gauge.add(gaugeBody);
  const gaugeFace = new THREE.Mesh(new THREE.CylinderGeometry(0.1, 0.1, 0.01, 10), gaugeMat);
  gaugeFace.name = 'gaugeFace';
  gaugeFace.position.set(0, 0, 0.03);
  gaugeFace.rotation.set(deg(90), 0, 0);
  gauge.add(gaugeFace);
  const needle = new THREE.Mesh(new THREE.BoxGeometry(0.012, 0.08, 0.01), valveMat);
  needle.name = 'needle';
  needle.position.set(0.02, 0.025, 0.04);
  needle.rotation.set(0, 0, deg(-35));
  gauge.add(needle);
  const feedPipe = new THREE.Mesh(tube([[0.25, 0.5, 0.2], [0.62, 0.42, 0.42], [0.8, 0.36, 0.5], [0.8, 0.14, 0.5]], 0.05, 8, 5), metalMat);
  feedPipe.name = 'feedPipe';
  root.add(feedPipe);
  const feedFlange = new THREE.Mesh(new THREE.CylinderGeometry(0.085, 0.085, 0.07, 8), darkMat);
  feedFlange.name = 'feedFlange';
  feedFlange.position.set(0.8, 0.155, 0.5);
  root.add(feedFlange);
  const feedValveBody = new THREE.Mesh(new THREE.CylinderGeometry(0.075, 0.075, 0.1, 8), metalMat);
  feedValveBody.name = 'feedValveBody';
  feedValveBody.position.set(0.8, 0.3, 0.5);
  root.add(feedValveBody);
  const feedValve = new THREE.Group();
  feedValve.name = 'feedValve';
  feedValve.position.set(0.8, 0.3, 0.6);
  root.add(feedValve);
  const wheelRim = new THREE.Mesh(torusGeo, valveMat);
  wheelRim.name = 'wheelRim';
  feedValve.add(wheelRim);
  const box51 = new THREE.Mesh(boxGeo4, valveMat);
  feedValve.add(box51);
  const box52 = new THREE.Mesh(boxGeo5, valveMat);
  feedValve.add(box52);
  const wheelHub = new THREE.Mesh(cylinderGeo3, metalMat);
  wheelHub.name = 'wheelHub';
  wheelHub.rotation.set(deg(90), 0, 0);
  feedValve.add(wheelHub);
  const topFlange = new THREE.Mesh(new THREE.CylinderGeometry(0.08, 0.1, 0.12, 8), darkMat);
  topFlange.name = 'topFlange';
  topFlange.position.set(0, 2.61, 0);
  root.add(topFlange);
  const ventPipe = new THREE.Mesh(tube([[0, 2.63, 0], [0, 2.88, 0], [0.12, 3, 0], [0.38, 3, 0]], 0.045, 6, 5), metalMat);
  ventPipe.name = 'ventPipe';
  root.add(ventPipe);
  const ventValveBody = new THREE.Mesh(new THREE.CylinderGeometry(0.065, 0.065, 0.1, 8), metalMat);
  ventValveBody.name = 'ventValveBody';
  ventValveBody.position.set(0, 2.8, 0);
  root.add(ventValveBody);
  const ventValve = new THREE.Group();
  ventValve.name = 'ventValve';
  ventValve.position.set(0, 2.8, 0.1);
  root.add(ventValve);
  const wheelRim2 = new THREE.Mesh(torusGeo, valveMat);
  wheelRim2.name = 'wheelRim';
  ventValve.add(wheelRim2);
  const box59 = new THREE.Mesh(boxGeo4, valveMat);
  ventValve.add(box59);
  const box60 = new THREE.Mesh(boxGeo5, valveMat);
  ventValve.add(box60);
  const wheelHub2 = new THREE.Mesh(cylinderGeo3, metalMat);
  wheelHub2.name = 'wheelHub';
  wheelHub2.rotation.set(deg(90), 0, 0);
  ventValve.add(wheelHub2);
  const ventCap = new THREE.Mesh(new THREE.CylinderGeometry(0.06, 0.06, 0.05, 8), darkMat);
  ventCap.name = 'ventCap';
  ventCap.position.set(0.4, 3, 0);
  ventCap.rotation.set(0, 0, deg(90));
  root.add(ventCap);
  const lightBase = new THREE.Mesh(new THREE.CylinderGeometry(0.06, 0.07, 0.05, 8), darkMat);
  lightBase.name = 'lightBase';
  lightBase.position.set(-0.36, 2.453, 0.2);
  lightBase.rotation.set(0, 0, deg(22));
  root.add(lightBase);
  const warningLight = new THREE.Mesh(new THREE.SphereGeometry(0.06, 6, 4), amberMat);
  warningLight.name = 'warningLight';
  warningLight.position.set(-0.38, 2.508, 0.2);
  root.add(warningLight);
  const labelPanel = new THREE.Mesh(new THREE.BoxGeometry(0.5, 0.3, 0.03), darkMat);
  labelPanel.name = 'labelPanel';
  labelPanel.position.set(-0.4928, 1.33, -0.4928);
  labelPanel.rotation.set(0, deg(-135), 0);
  root.add(labelPanel);
  const labelStrip = new THREE.Mesh(new THREE.BoxGeometry(0.36, 0.05, 0.02), amberMat);
  labelStrip.name = 'labelStrip';
  labelStrip.position.set(-0.5128, 1.38, -0.5128);
  labelStrip.rotation.set(0, deg(-135), 0);
  root.add(labelStrip);

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

export default createFuelTank;