import { describe, expect, it } from 'vitest';

import { markdownToDoc } from './markdown';
import { extractOutline } from './outline';

describe('extractOutline (issue #24)', () => {
  it('returns the heading tree with levels and text', () => {
    const doc = markdownToDoc(
      '# Handbook\n\nIntro paragraph.\n\n## Onboarding\n\n### Day one\n\n## Offboarding',
    );
    expect(extractOutline(doc)).toEqual([
      { id: 'handbook', level: 1, text: 'Handbook' },
      { id: 'onboarding', level: 2, text: 'Onboarding' },
      { id: 'day-one', level: 3, text: 'Day one' },
      { id: 'offboarding', level: 2, text: 'Offboarding' },
    ]);
  });

  it('deduplicates repeated heading text with stable numeric suffixes', () => {
    const doc = markdownToDoc('# Notes\n\n## Notes\n\n## Notes');
    expect(extractOutline(doc).map((entry) => entry.id)).toEqual(['notes', 'notes-2', 'notes-3']);
  });
});