import { describe, expect, it } from 'vitest';
import { cleanupUrl, mergeReadMoreLinks } from '../src/links/url.js';
import { ExtractedLink } from '../src/parsing/types.js';

describe('URL cleanup', () => {
  it('strips tracking parameters and unwraps supported redirect URLs', () => {
    const result = cleanupUrl(
      'https://newsletter.example/redirect?url=https%3A%2F%2Fexample.com%2Fpost%3Futm_source%3Dx%26id%3D1&mc_cid=abc',
      { trackingParams: ['utm_*', 'mc_cid'], unwrapRedirects: true }
    );

    expect(result).toBe('https://example.com/post?id=1');
  });
});

describe('read-more merging', () => {
  it('merges a read-more link into the preceding link with the same normalized URL', () => {
    const links: ExtractedLink[] = [
      {
        url: 'https://example.com/a',
        normalizedUrl: 'https://example.com/a',
        title: 'Great article',
        description: 'A useful summary',
        sourceText: 'Great article',
        section: 'Python'
      },
      {
        url: 'https://example.com/a?utm_source=x',
        normalizedUrl: 'https://example.com/a',
        title: 'Read more',
        description: '',
        sourceText: 'Read more'
      }
    ];

    expect(mergeReadMoreLinks(links, /^(read more)$/i)).toHaveLength(1);
  });
});