import { describe, expect, it } from 'vitest';
import { buildPier } from '../src/core/geometry';
import { BEARING_ELEVATION_REF, SOLPLATE_REF, SOLPLATE_T_RULE, solplateTs } from '../src/core/bearing-ref';
import { loadP1 } from './helpers';

describe('교량받침 reference (도면값, 읽기 전용, 1단계)', () => {
  it('E = h1 + h2 + h3 + h4 on every row', () => {
    for (const r of BEARING_ELEVATION_REF) expect(r.h1 + r.h2 + r.h3 + r.h4, `No ${r.no}`).toBe(r.E);
  });

  it('solplate L = A + 100 and W = B + 100 against the elevation row', () => {
    BEARING_ELEVATION_REF.forEach((e, i) => {
      expect(SOLPLATE_REF[i].L, `No ${e.no}`).toBe(e.A + 100);
      expect(SOLPLATE_REF[i].W, `No ${e.no}`).toBe(e.B + 100);
    });
  });

  it('T1 and T2 follow T ± L·|S|/2 on every row (the 검산 column)', () => {
    for (const r of SOLPLATE_REF) {
      const c = solplateTs(SOLPLATE_T_RULE, r.L, r.s);
      expect(c.T1, `No ${r.no}`).toBe(r.T1);
      expect(c.T2, `No ${r.no}`).toBe(r.T2);
    }
  });

  it('the solplate tapers along the axis: T1 (−측) + T2 (+측) = 2·T, with T = 30 at the centre', () => {
    for (const r of SOLPLATE_REF) {
      expect(r.T, `No ${r.no}`).toBe(SOLPLATE_T_RULE);
      expect(r.T1 + r.T2, `No ${r.no}`).toBe(2 * r.T);
      expect(r.T1, `No ${r.no}`).toBeGreaterThan(r.T2);
    }
  });

  it('the drawing EL.X − E sits a constant 0.211 m below the model coping top on all ten bearings (Q16 diagnostic)', () => {
    const m = buildPier(loadP1());
    const back = m.blocks.filter((b) => b.row === '후열');
    const diffs = BEARING_ELEVATION_REF.map((r) => {
      const modelTop = r.row === '전열' ? m.segments[r.no - 1].top : back[r.no - 6].bottom;
      return modelTop - (r.elx - r.E / 1000);
    });
    for (const d of diffs) expect(d).toBeCloseTo(0.211, 2);
  });
});