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

import { extractTaskRows } from './tasks';
import { docToHtml } from './html';
import { docToMarkdown, markdownToDoc } from './markdown';

describe('task overview block + task extraction (issue #154)', () => {
  it('round-trips the marker fence', () => {
    const doc = markdownToDoc('Intro\n\n```dorfteich-tasks\n```\n\nOutro');
    let found = 0;
    doc.descendants((node) => {
      if (node.type.name === 'task_overview') found += 1;
    });
    expect(found).toBe(1);
    expect(docToMarkdown(doc)).toContain('```dorfteich-tasks');
  });

  it('renders the placeholder div for the permission-aware expansion', () => {
    const html = docToHtml(markdownToDoc('```dorfteich-tasks\n```'));
    expect(html).toContain('class="dt-task-overview" data-task-overview="1"');
  });

  it('extracts rows with text, mentions, and dates from task lists', () => {
    const doc = markdownToDoc(
      '- [ ] Bühne buchen @nadia >>2026-08-01\n- [x] Kabel prüfen <<2026-07-01\n\nKein Task.',
    );
    const rows = extractTaskRows(doc);
    expect(rows).toHaveLength(2);
    expect(rows[0]).toMatchObject({
      checked: false,
      text: 'Bühne buchen',
      dueDate: '2026-08-01',
      startDate: null,
    });
    expect(rows[0]!.mentions).toEqual([{ userId: '', username: 'nadia' }]);
    expect(rows[1]).toMatchObject({
      checked: true,
      text: 'Kabel prüfen',
      startDate: '2026-07-01',
      dueDate: null,
    });
    // Markdown-born rows have no stable id yet (assigned in the editor, #153).
    expect(rows[0]!.id).toBeNull();
  });
});