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

import { buildSitemap } from './sitemap';

const xml = buildSitemap('https://pireon.dev', {
  pages: [
    {
      id: 1,
      updated_at: '2026-09-27T20:36:14+00:00',
      alternates: {
        es: '/sobre-nosotros',
        en: '/en/about-us',
        ca: '/ca/qui-som',
      },
    },
  ],
}, [
  {
    id: 1,
    name: 'Angular',
    slug: 'angular',
    category: 'framework',
    projects_count: 0,
    members_count: 0,
  },
]);

describe('buildSitemap', () => {
  it('lists every language of a record as its own url', () => {
    for (const path of ['/sobre-nosotros', '/en/about-us', '/ca/qui-som']) {
      expect(xml).toContain(`<loc>https://pireon.dev${path}</loc>`);
    }
  });

  it('states every language on each url, with the default as x-default', () => {
    expect(xml).toContain(
      'hreflang="en" href="https://pireon.dev/en/about-us"',
    );
    expect(xml).toContain(
      'hreflang="x-default" href="https://pireon.dev/sobre-nosotros"',
    );
    expect(xml).toContain('<lastmod>2026-09-27T20:36:14+00:00</lastmod>');
  });

  it('includes the landing and the listings this site composes', () => {
    expect(xml).toContain('<loc>https://pireon.dev/</loc>');
    // `&` escaped, as XML requires.
    expect(xml).toContain('<loc>https://pireon.dev/?lang=en</loc>');
    expect(xml).toContain('<loc>https://pireon.dev/radar</loc>');
    expect(xml).toContain('<loc>https://pireon.dev/ca/col-labora</loc>');
  });

  // The API gives technologies no address and `/slugs` cannot carry them, so
  // these are composed here and have to be in the sitemap all the same.
  it('includes the technology pages this site composes', () => {
    expect(xml).toContain('<loc>https://pireon.dev/tecnologias/angular</loc>');
    expect(xml).toContain(
      '<loc>https://pireon.dev/en/technologies/angular</loc>',
    );
    expect(xml).toContain(
      '<loc>https://pireon.dev/ca/tecnologies/angular</loc>',
    );
    expect(xml).toContain(
      'hreflang="ca" href="https://pireon.dev/ca/tecnologies/angular"',
    );
  });

  it('is a well-formed document', () => {
    const document = new DOMParser().parseFromString(xml, 'application/xml');

    expect(document.getElementsByTagName('parsererror')).toHaveLength(0);
  });
});