import { describe, expect, it } from 'vitest';
import { buildPier } from '../src/core/geometry';
import { shearBarsMulti } from '../src/core/rebar/coping';
import { rebarSummary } from '../src/core/rebar/summary';
import { loadP1 } from './helpers';

// 2주형 and 3주형 on the P1 sheet with a 12 m coping (columns at L/5, 4L/5 and L/5, L/2, 4L/5).
const two = buildPier({ ...loadP1(), type: '2주형', columnCount: 2, copingLengthMm: 12000 });
const three = buildPier({ ...loadP1(), type: '3주형', columnCount: 3, copingLengthMm: 12000 });
const count = (rows: ReturnType<typeof rebarSummary>['rows'], name: string) => rows.find((r) => r.name === name)!.count;

describe('다주형 철근 (2주형·3주형, 코핑철근.md §9)', () => {
  it('2주형: C10 2 × 9 = 18; C9 and C11 3 each outside; 18 between (추천안, Q-K2)', () => {
    const rows = rebarSummary(two).rows;
    expect(count(rows, 'C10')).toBe(18);
    expect(count(rows, 'C9')).toBe(3);
    expect(count(rows, 'C11')).toBe(3);
    expect(count(rows, 'C9·C11 사이')).toBe(18);
  });

  it('3주형: C10 3 × 9 = 27; two gaps of 3 between', () => {
    const rows = rebarSummary(three).rows;
    expect(count(rows, 'C10')).toBe(27);
    expect(count(rows, 'C9·C11 사이')).toBe(6);
  });

  it('column bars repeat per column: P1 230 × 2 and 230 × 3', () => {
    expect(count(rebarSummary(two).rows, 'P1')).toBe(460);
    expect(count(rebarSummary(three).rows, 'P1')).toBe(690);
  });

  it('a multi-column pier gets the RB-M01 note about C14', () => {
    expect(rebarSummary(two).warnings.map((w) => w.code)).toContain('RB-M01');
  });

  it('the single column (T형) has no between row and no RB-M01', () => {
    const t = rebarSummary(buildPier(loadP1()));
    expect(t.rows.find((r) => r.name === 'C9·C11 사이')).toBeUndefined();
    expect(t.warnings.map((w) => w.code)).not.toContain('RB-M01');
  });

  it('shear bars for a columns too close to share a Level are refused', () => {
    expect(() => shearBarsMulti(12000, [3000, 3500])).toThrow('겹칩니다');
  });
});