import { readFileSync } from 'node:fs';
import { fileURLToPath } from 'node:url';
import * as XLSX from 'xlsx';
import * as THREE from 'three';
import { describe, expect, it } from 'vitest';
import { buildAbut } from '../src/core/abut/geometry';
import { parseAbutments, toAbutInput } from '../src/core/abut/parse';
import { buildMembers } from '../src/core/abut/members';
import { buildWings } from '../src/core/abut/wings';
import { buildAbutGroup } from '../src/view/abut-scene';

const RAG = fileURLToPath(new URL('../../../RAG/운곡교P1입력.xlsx', import.meta.url));
const rec = parseAbutments(XLSX.read(readFileSync(RAG), { type: 'buffer' })).abutments[0];
const input = toAbutInput(rec);
const model = buildAbut(input);
const members = buildMembers(model, { bottomEl: input.foundationBottomEl, pileLengthMm: input.pileLengthMm });
const group = buildAbutGroup(model, members, buildWings(model, members));

const named = (name: string) => group.getObjectByName(name) as THREE.Group | undefined;

describe('교대 3D: 받침블럭과 접속슬래브 (spec §4.2, §4.8)', () => {
  it('has a block and a pad for each of the 5 bearings', () => {
    expect(named('blocks')?.children).toHaveLength(2 * model.bearings.length);
  });

  it('draws the 접속슬래브 as one slab over the wing-to-wing width', () => {
    const slab = named('slab');
    expect(slab?.children).toHaveLength(1);
    const box = new THREE.Box3().setFromObject(slab as THREE.Group);
    const width = box.max.x - box.min.x;
    expect(width).toBeCloseTo((model.wing?.slabWidthMm ?? 0) / 1000, 2);
  });

  it('the slab reaches 7 m behind the 흉벽 back face and is 450 thick', () => {
    const box = new THREE.Box3().setFromObject(named('slab') as THREE.Group);
    expect(box.min.z).toBeCloseTo(members.shape.parapetBackM - 0.005 - 7, 2);
    expect(box.max.y - box.min.y).toBeGreaterThan(0.45);
  });
});