import assert from 'node:assert/strict'
import { createServer } from 'node:http'
import test from 'node:test'
import { WikiClient } from '../src/wiki-client.js'
import { normalizeApiKey, normalizeBaseUrl } from '../src/utils.js'

const listItem = {
  id: 1,
  path: 'docs',
  locale: 'en',
  title: 'Docs',
  description: 'Documentation',
  contentType: 'markdown',
  isPublished: true,
  updatedAt: '2026-01-02T10:00:00.000Z',
}

function startWiki({ expectedKey = 'test-key' } = {}) {
  const requests = []
  const server = createServer((request, response) => {
    let raw = ''
    request.on('data', (chunk) => {
      raw += chunk
    })
    request.on('end', () => {
      const authorization = request.headers.authorization || ''
      const body = JSON.parse(raw || '{}')
      requests.push({ authorization, query: body.query || '', variables: body.variables || {} })

      if (authorization !== `Bearer ${expectedKey}`) {
        response.writeHead(401, { 'Content-Type': 'application/json' })
        response.end(JSON.stringify({ error: 'Unauthorized' }))
        return
      }

      const send = (data) => {
        response.writeHead(200, { 'Content-Type': 'application/json' })
        response.end(JSON.stringify({ data }))
      }

      if (body.query.includes('WikiPrintPages')) {
        send({ pages: { list: [listItem] } })
      } else if (body.query.includes('WikiPrintLocalization')) {
        send({
          localization: {
            config: { locale: 'en', namespacing: true, namespaces: ['en', 'de'] },
          },
        })
      } else if (body.query.includes('WikiPrintPageSource')) {
        send({ pages: { single: { content: '# Docs', contentType: 'markdown' } } })
      } else if (body.query.includes('WikiPrintPage')) {
        send({
          pages: {
            singleByPath: {
              ...listItem,
              render: '<h1>Docs</h1>',
              createdAt: listItem.updatedAt,
            },
          },
        })
      } else {
        response.writeHead(400, { 'Content-Type': 'application/json' })
        response.end(JSON.stringify({ errors: [{ message: 'Unknown query' }] }))
      }
    })
  })

  return new Promise((resolve) => {
    server.listen(0, '127.0.0.1', () => {
      resolve({
        url: `http://127.0.0.1:${server.address().port}`,
        requests,
        close: () => new Promise((done) => server.close(done)),
      })
    })
  })
}

test('normalizes API keys from environment-style input', () => {
  assert.equal(normalizeApiKey('  test-key  '), 'test-key')
  assert.equal(normalizeApiKey('Bearer test-key'), 'test-key')
  assert.equal(normalizeApiKey('bearer   test-key'), 'test-key')
  assert.equal(normalizeApiKey(undefined), '')
})

test('uses Wiki.js 2.x queries and Bearer authentication', async () => {
  const wiki = await startWiki()
  try {
    const client = new WikiClient({
      baseUrl: normalizeBaseUrl(wiki.url),
      apiKey: 'Bearer test-key',
    })

    assert.equal((await client.listPages())[0].path, 'docs')
    assert.equal((await client.getLocalization()).namespacing, true)
    assert.equal((await client.getPage('docs', 'en')).render, '<h1>Docs</h1>')
    assert.equal((await client.getPageSource(1)).content, '# Docs')

    assert.ok(wiki.requests.length >= 4)
    assert.ok(wiki.requests.every((request) => request.authorization === 'Bearer test-key'))

    const queryFor = (marker) =>
      wiki.requests.find((request) => request.query.includes(marker))?.query || ''

    // These fields exist in the Wiki.js 2.x schema but require permissions
    // beyond read:pages (read:source or write:pages), so requests protected
    // with read:pages must not select them.
    const listQuery = queryFor('WikiPrintPages')
    assert.match(listQuery, /\bpath\b/)
    assert.match(listQuery, /\blocale\b/)
    assert.match(listQuery, /\bisPublished\b/)
    assert.doesNotMatch(listQuery, /\bisPrivate\b/)
    assert.doesNotMatch(listQuery, /\bauthorEmail\b/)
    assert.doesNotMatch(listQuery, /\bprivateNS\b/)
    assert.doesNotMatch(listQuery, /\bcontent\b/)

    const pageQuery = queryFor('WikiPrintPage(')
    assert.match(pageQuery, /\brender\b/)
    // Wiki.js may expose `toc` as a String scalar while returning an array,
    // which makes the whole page query fail with INTERNAL_SERVER_ERROR.
    // The exporter does not use it.
    assert.doesNotMatch(pageQuery, /\btoc\b/)
    assert.doesNotMatch(pageQuery, /\bisPublished\b/)
    assert.doesNotMatch(pageQuery, /\bisPrivate\b/)
    assert.doesNotMatch(pageQuery, /\bauthorEmail\b/)
    assert.doesNotMatch(pageQuery, /\bcontent\b/)

    const sourceQuery = queryFor('WikiPrintPageSource')
    assert.match(sourceQuery, /\bcontent\b/)
    assert.doesNotMatch(sourceQuery, /\brender\b/)

    const localizationQuery = queryFor('WikiPrintLocalization')
    assert.match(localizationQuery, /\blocale\b/)
    assert.match(localizationQuery, /\bnamespacing\b/)
    assert.match(localizationQuery, /\bnamespaces\b/)
  } finally {
    await wiki.close()
  }
})

test('reports a rejected Wiki.js 2.x API key', async () => {
  const wiki = await startWiki({ expectedKey: 'different-key' })
  try {
    const client = new WikiClient({
      baseUrl: normalizeBaseUrl(wiki.url),
      apiKey: 'test-key',
      timeoutMs: 2_000,
    })

    await assert.rejects(client.listPages(), (error) => {
      assert.equal(error.code, 'WIKI_AUTH_FAILED')
      assert.equal(error.status, 401)
      return true
    })
  } finally {
    await wiki.close()
  }
})