import assert from 'node:assert/strict'
import test from 'node:test'
import { htmlSitemapGroupPage, htmlSitemapOverview, htmlSitemapPage } from '../server/lib/htmlSitemap.ts'

test('htmlSitemapOverview: empty groups and malformed entries are left out', () => {
  const out = htmlSitemapOverview({
    groups: [
      { key: 'posts', slug: 'posts', title: 'Wpisy', total: 1234, more: true, entries: [{ title: 'A', url: 'https://x.test/a', extra: 1 }, { url: '/no-title' }] },
      { key: 'tags', slug: 'tagi', title: 'Tagi', total: 0, entries: [] },
      { key: 'bad', slug: '../x', title: 'Bad', entries: [{ title: 'B', url: '/b' }] },
      { key: 'cats', slug: 'kategorie', title: 'Kategorie', entries: [{ title: 'C', url: '/c', children: [{ title: 'D', url: '/d' }] }] },
    ],
  })
  assert.deepEqual(out.groups.map((g) => g.slug), ['posts', 'kategorie'])
  assert.deepEqual(out.groups[0], { key: 'posts', slug: 'posts', title: 'Wpisy', total: 1234, entries: [{ title: 'A', url: 'https://x.test/a' }], more: true })
  assert.deepEqual(out.groups[1]!.entries, [{ title: 'C', url: '/c', children: [{ title: 'D', url: '/d' }] }])
  assert.equal(out.groups[1]!.total, 1, 'a missing total counts the entries')
  assert.deepEqual(htmlSitemapOverview(null), { groups: [] })
})

test('htmlSitemapGroupPage: page and pages', () => {
  assert.deepEqual(htmlSitemapGroupPage({ title: 'Wpisy', page: 2, pages: 3, entries: [{ title: 'A', url: '/a' }] }, 'posts'), {
    group: 'posts',
    title: 'Wpisy',
    page: 2,
    pages: 3,
    entries: [{ title: 'A', url: '/a' }],
  })
  assert.equal(htmlSitemapGroupPage({ page: 4 }, 'posts').pages, 4)
})

test('htmlSitemapPage: 1 by default, null for anything but a page number', () => {
  assert.equal(htmlSitemapPage(undefined), 1)
  assert.equal(htmlSitemapPage('3'), 3)
  assert.equal(htmlSitemapPage('0'), null)
  assert.equal(htmlSitemapPage('abc'), null)
  assert.equal(htmlSitemapPage(['1', '2']), null)
  assert.equal(htmlSitemapPage('1234567'), null)
})