import { test, describe } from 'node:test'
import assert from 'node:assert'
import fs from 'node:fs'
import os from 'node:os'
import path from 'node:path'
import {
  escHtml,
  escMd,
  pickFeatured,
  buildFeaturedHtml,
  readAllMeta,
  generateListPageMarkdown,
  generateDetailPageMarkdown,
  patchIndexFeaturedContent,
  FEATURED_START,
  FEATURED_END,
} from '../tools/presentation-contracts.mjs'

function mockSitePath(p) {
  return p.startsWith('/') ? p : `/${p}`
}

describe('escHtml / escMd', () => {
  test('escHtml neutralise < > & "', () => {
    assert.strictEqual(escHtml('<a href="x">'), '&lt;a href=&quot;x&quot;&gt;')
  })

  test('escMd échappe les pipes tableaux markdown', () => {
    assert.strictEqual(escMd('a|b'), 'a\\|b')
  })
})

describe('pickFeatured', () => {
  test('priorité aux entrées featured puis order', () => {
    const items = [
      { slug: 'c', title: 'C', order: 3, featured: false },
      { slug: 'a', title: 'A', order: 1, featured: true },
      { slug: 'b', title: 'B', order: 2, featured: true },
    ]
    const got = pickFeatured(items)
    assert.deepStrictEqual(
      got.map((x) => x.slug),
      ['a', 'b'],
    )
  })

  test('sans featured : trois premiers par order', () => {
    const items = [
      { slug: 'z', title: 'Z', order: 10 },
      { slug: 'a', title: 'A', order: 1 },
      { slug: 'b', title: 'B', order: 2 },
      { slug: 'c', title: 'C', order: 3 },
    ]
    const got = pickFeatured(items)
    assert.deepStrictEqual(
      got.map((x) => x.slug),
      ['a', 'b', 'c'],
    )
  })

  test('liste vide', () => {
    assert.deepStrictEqual(pickFeatured([]), [])
  })
})

describe('buildFeaturedHtml', () => {
  test('génère des liens et échappe le titre', () => {
    const html = buildFeaturedHtml(
      [{ slug: 'x', title: '<evil>', description: 'd & co', order: 1 }],
      mockSitePath,
    )
    assert.match(html, /href="\/presentations\/x\/"/)
    assert.match(html, /&lt;evil&gt;/)
    assert.match(html, /d &amp; co/)
  })

  test('aucune présentation : commentaire', () => {
    assert.strictEqual(buildFeaturedHtml([], mockSitePath), '<!-- (aucune présentation) -->')
  })
})

describe('readAllMeta (répertoire temporaire)', () => {
  test('ignore dossier sans meta.json', () => {
    const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'talks-slides-'))
    fs.mkdirSync(path.join(dir, 'empty'), { recursive: true })
    const okDir = path.join(dir, 'ok')
    fs.mkdirSync(okDir, { recursive: true })
    fs.writeFileSync(path.join(okDir, 'meta.json'), JSON.stringify({ title: 'T', description: '', order: 1 }))
    const list = readAllMeta(dir)
    assert.strictEqual(list.length, 1)
    assert.strictEqual(list[0].slug, 'ok')
    assert.strictEqual(list[0].title, 'T')
  })
})

describe('generateListPageMarkdown / generateDetailPageMarkdown', () => {
  const p = {
    slug: 'demo',
    title: 'Démo',
    description: 'Desc',
    tags: ['a', 'b'],
    order: 1,
  }

  test('liste contient fiche + slides + tags', () => {
    const md = generateListPageMarkdown([p], mockSitePath)
    assert.match(md, /href="\/presentations\/demo\/"/)
    assert.match(md, /href="\/slides\/demo\/1"/)
    assert.match(md, /vp-raw/)
    assert.match(md, /`a` · `b`/)
  })

  test('détail contient QrEncode et boutons', () => {
    const md = generateDetailPageMarkdown(p, mockSitePath)
    assert.match(md, /<QrEncode path="\/slides\/demo\/1" \/>/)
    assert.match(md, /class="vp-button vp-raw"/)
    assert.match(md, /Voir les slides/)
    assert.match(md, /## Partager les slides/)
  })

  test('détail sans tags : pas de ligne Tags', () => {
    const md = generateDetailPageMarkdown({ ...p, tags: [] }, mockSitePath)
    assert.ok(!md.includes('**Tags :**'))
  })
})

describe('patchIndexFeaturedContent', () => {
  test('remplace la zone entre marqueurs', () => {
    const raw = `head\n${FEATURED_START}\nold\n${FEATURED_END}\ntail`
    const { ok, content } = patchIndexFeaturedContent(
      raw,
      [{ slug: 's', title: 'T', description: 'D', order: 1 }],
      mockSitePath,
    )
    assert.strictEqual(ok, true)
    assert.ok(content.includes('talk-card'))
    assert.ok(content.includes('head'))
    assert.ok(content.includes('tail'))
    assert.ok(!content.includes('old'))
  })

  test('marqueurs absents : ok false', () => {
    const { ok } = patchIndexFeaturedContent('nope', [], mockSitePath)
    assert.strictEqual(ok, false)
  })
})