import { readFileSync } from 'node:fs';
import { fileURLToPath } from 'node:url';
import * as XLSX from 'xlsx';
import { describe, expect, it } from 'vitest';
import { applyAbutEdit, applyBearingEdit, restoreAbutDefault, setWingForm, setWingsLinked, applyWingDim } from '../src/core/abut/edit';
import { parseAbutments } from '../src/core/abut/parse';

const RAG = fileURLToPath(new URL('../../../RAG/운곡교P1입력.xlsx', import.meta.url));
const rec = parseAbutments(XLSX.read(readFileSync(RAG), { type: 'buffer' })).abutments[0];

describe('교대 입력 편집 (교대 편집 카드)', () => {
  it('a valid change returns a new record and leaves the old one unchanged', () => {
    const next = applyAbutEdit(rec, 'groundEl', 34.5);
    expect(next.groundEl).toBe(34.5);
    expect(rec.groundEl).toBeCloseTo(33.984, 3);
  });

  it('a non-number, a pile length of 0 or a skew out of range are refused with the field name', () => {
    expect(() => applyAbutEdit(rec, 'seatEl', NaN)).toThrow('교좌면 EL');
    expect(() => applyAbutEdit(rec, 'pileLengthMm', 0)).toThrow('말뚝길이');
    expect(() => applyAbutEdit(rec, 'skewDeg', 200)).toThrow('skew');
  });

  it('the 교좌면 EL must stay above the 기초 하단 EL', () => {
    expect(() => applyAbutEdit(rec, 'seatEl', rec.foundationBottomEl)).toThrow('기초 하단 EL보다 높아야');
  });

  it('a wing form change sets both sides while 좌우 같게 (default), one side once it is off', () => {
    expect(setWingForm(rec, 'left', 'short').wings).toEqual({ left: 'short', right: 'short' });
    const apart = setWingsLinked(rec, false);
    expect(setWingForm(apart, 'left', 'short').wings).toEqual({ left: 'short', right: 'general' });
    expect(rec.wings).toBeUndefined();
  });

  it('wing dims: 좌우 같게 applies to both sides, off applies to one; turning it on copies the left side', () => {
    const both = applyWingDim(rec, 'left', 'lengthMm', 6000);
    expect(both.wingDims).toEqual({ left: { lengthMm: 6000 }, right: { lengthMm: 6000 } });
    const apart = applyWingDim(setWingsLinked(rec, false), 'right', 'thicknessMm', 500);
    expect(apart.wingDims).toEqual({ left: {}, right: { thicknessMm: 500 } });
    const relinked = setWingsLinked(applyWingDim(apart, 'left', 'lengthMm', 5000), true);
    expect(relinked.wingDims).toEqual({ left: { lengthMm: 5000 }, right: { lengthMm: 5000 } });
    expect(() => applyWingDim(rec, 'left', 'thicknessMm', 0)).toThrow('두께');
    expect(() => applyWingDim(rec, 'left', 'haunchMm', -1)).toThrow('헌치');
  });
});

describe('교대 기본값 복원과 받침 편집', () => {
  it('restores the imported defaults after several changes (a copy, not the same object)', () => {
    const changed = setWingForm(applyAbutEdit(rec, 'groundEl', 34.5), 'left', 'none');
    const back = restoreAbutDefault(rec);
    expect(back).toEqual(rec);
    expect(back).not.toBe(rec);
    expect(changed.groundEl).toBe(34.5);
  });

  it('a bearing z change keeps the others; a 교좌면 override sets that bearing only', () => {
    const z = applyBearingEdit(rec, 3, 'z', 44.7);
    expect(z.bearings.find((b) => b.no === 3)!.z).toBe(44.7);
    expect(z.bearings.find((b) => b.no === 1)!.z).toBe(rec.bearings[0].z);
    const seat = applyBearingEdit(rec, 2, 'seatEl', 44.5);
    expect(seat.bearings.find((b) => b.no === 2)!.seatEl).toBe(44.5);
    const auto = applyBearingEdit(seat, 2, 'seatEl', undefined);
    expect(auto.bearings.find((b) => b.no === 2)!.seatEl).toBeUndefined();
  });

  it('refuses an unknown bearing, a non-number z, and a 교좌면 at or below the 기초 하단', () => {
    expect(() => applyBearingEdit(rec, 99, 'z', 44)).toThrow('받침 99번');
    expect(() => applyBearingEdit(rec, 1, 'z', undefined)).toThrow('z는 숫자');
    expect(() => applyBearingEdit(rec, 1, 'seatEl', rec.foundationBottomEl)).toThrow('기초 하단');
  });
});