import { describe, expect, it } from 'vitest';
import { readFileSync } from 'node:fs';
import { BEARING_ELEVATION_REF } from '../src/core/bearing-ref';
import { parseBearingElevationTable, readDxfTexts, type DxfText } from '../src/core/dxf-table';

const texts = JSON.parse(readFileSync(new URL('./fixtures/bearing-table-texts.json', import.meta.url), 'utf-8')) as DxfText[];

describe('도면 받침 ELEVATION TABLE 읽기 (DXF 텍스트, 승인 2026-10-23)', () => {
  it('reads all ten bearings from the 운곡교 교각도(2) table', () => {
    const r = parseBearingElevationTable(texts);
    expect(r.errors).toEqual([]);
    expect(r.drawing.map((d) => d.no)).toEqual([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
  });

  it('the values equal the reference table used for the 도면 비교 (EL.X, h1, h2 on every bearing)', () => {
    const r = parseBearingElevationTable(texts);
    for (const ref of BEARING_ELEVATION_REF) {
      const got = r.drawing.find((d) => d.no === ref.no)!;
      expect(got.elx, `No ${ref.no} EL.X`).toBeCloseTo(ref.elx, 3);
      expect(got.h1, `No ${ref.no} h1`).toBe(ref.h1);
      expect(got.h2, `No ${ref.no} h2`).toBe(ref.h2);
    }
  });

  it('a leader-line "EL. X" label placed before the table does not replace the table header', () => {
    const distractor = { x: 11102.8, y: 11521.7, text: 'EL. "X"' };
    const r = parseBearingElevationTable([distractor, ...texts]);
    expect(r.errors).toEqual([]);
    expect(r.drawing.map((d) => d.no)).toEqual([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
  });

  it('a stray "NO" label elsewhere on the drawing does not move the No column', () => {
    const r = parseBearingElevationTable([{ x: 100, y: 100, text: 'NO.' }, ...texts]);
    expect(r.errors).toEqual([]);
    expect(r.drawing.map((d) => d.no)).toEqual([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
  });

  it('reads TEXT entities from DXF text (x, y, string)', () => {
    const dxf = ['0', 'SECTION', '2', 'ENTITIES', '0', 'TEXT', '10', '100.5', '20', '200.25', '1', 'EL. "X"', '0', 'ENDSEC'].join('\n');
    expect(readDxfTexts(dxf)).toEqual([{ x: 100.5, y: 200.25, text: 'EL. "X"' }]);
  });
});