import { describe, expect, it } from 'vitest';
import { buildPier } from '../src/core/geometry';
import { barsAcross, bearingBlockRebar, blockBars, totals } from '../src/core/rebar/bearing-block';
import { rebarSummary } from '../src/core/rebar/summary';
import { loadP1 } from './helpers';

describe('받침블럭 철근 (spec §6.3, plan C2)', () => {
  it('a 1200 block takes 8 bars at 125 mm: 7 gaps = 875, ends 162.5 each', () => {
    const a = barsAcross(1200);
    expect(a.count).toBe(8);
    expect(a.spacing).toBe(125);
    expect((a.count - 1) * a.spacing).toBe(875);
    expect(a.firstEnd).toBeCloseTo(162.5, 6);
  });

  it('each bar is 1100 + 700 × 2 = 2500 mm long', () => {
    for (const bar of blockBars(150)) expect(bar.length).toBe(2500);
  });

  it('coping embedment from the model block height (block top − coping top: front 100, back 150): S2 650 / 600, S1 669.1 / 619.1', () => {
    const m = buildPier(loadP1());
    const rebar = bearingBlockRebar(m);
    const emb = (row: '전열' | '후열', name: 'S1' | 'S2') => rebar.find((b) => b.row === row)!.bars.find((r) => r.name === name)!.embedment;
    expect(emb('전열', 'S2')).toBeCloseTo(650, 6);
    expect(emb('후열', 'S2')).toBeCloseTo(600, 6);
    expect(emb('전열', 'S1')).toBeCloseTo(669.1, 6);
    expect(emb('후열', 'S1')).toBeCloseTo(619.1, 6);
  });

  it('P1: 10 blocks, 80 bars each of S1 and S2 (spec table: 8 本 per block)', () => {
    const m = buildPier(loadP1());
    const rebar = bearingBlockRebar(m);
    expect(rebar).toHaveLength(10);
    expect(totals(rebar)).toEqual({ S1: 80, S2: 80 });
  });
});

describe('받침블럭 도면 재현 (spec §6.3)', () => {
  it('integrated block 2500 × 1200: 18@125 = 2250 along (ends 50 + 75), 7@125 = 875 across (ends 50 + 113 ≈ 162.5)', () => {
    const along = barsAcross(2500);
    expect(along.spacing).toBe(125);
    expect(along.count - 1).toBe(18);
    expect((along.count - 1) * along.spacing).toBe(2250);
    expect(along.firstEnd).toBeCloseTo(125, 6);

    const across = barsAcross(1200);
    expect(across.count - 1).toBe(7);
    expect((across.count - 1) * across.spacing).toBe(875);
    expect(across.firstEnd).toBeCloseTo(162.5, 6); // 50 + 75 + 37.5, printed as 50 + 113 in the drawing
  });
});

describe('받침블럭 묻힘 검토 (spec §9 RB-S04)', () => {
  it('P1: embedments 619–669 mm are shorter than the H19 development length 882, so RB-S04 is raised and the rows show the range', () => {
    const { rows, warnings } = rebarSummary(buildPier(loadP1()));
    expect(warnings.some((w) => w.code === 'RB-S04')).toBe(true);
    expect(rows.find((r) => r.name === 'S1')!.note).toContain('묻힘 619–669');
    expect(rows.find((r) => r.name === 'S2')!.note).toContain('묻힘 600–650');
  });
});