import { chromium } from 'playwright'
import { createServer } from 'node:http'
import { readFile, mkdir } from 'node:fs/promises'
import { extname, resolve } from 'node:path'
import assert from 'node:assert/strict'

const root = resolve('dist')
const server = createServer(async (request, response) => {
  try {
    const path = decodeURIComponent(new URL(request.url, 'http://localhost').pathname)
    const file = resolve(root, '.' + (path === '/' ? '/index.html' : path))
    if (!file.startsWith(root + '\\') && !file.startsWith(root + '/')) throw new Error('outside assets')
    const data = await readFile(file)
    response.writeHead(200, { 'Content-Type': ({ '.html': 'text/html', '.mjs': 'text/javascript', '.js': 'text/javascript', '.css': 'text/css' })[extname(file)] || 'application/octet-stream' }); response.end(data)
  } catch { response.writeHead(404); response.end() }
})
await new Promise(resolve => server.listen(0, '127.0.0.1', resolve))
const browser = await chromium.launch({ channel: 'msedge', headless: true })
try {
  const page = await browser.newPage({ viewport: { width: 390, height: 844 }, deviceScaleFactor: 1 })
  const errors = []; page.on('pageerror', error => errors.push(error.message))
  await page.goto(`http://127.0.0.1:${server.address().port}`)
  await page.getByRole('heading', { name: 'Fikrini konuş. Birlikte geliştir.' }).waitFor()
  assert.equal(await page.evaluate(() => document.documentElement.scrollWidth > innerWidth), false)
  assert.ok((await page.getByRole('button', { name: 'Eşleştirme kodu oluştur' }).boundingBox()).height >= 48)
  await mkdir('test-results', { recursive: true })
  await page.screenshot({ path: 'test-results/android-onboarding.png', fullPage: true })
  const result = await page.evaluate(async () => {
    const { completeIce, DataRequests, sendFrame } = await import('./transport.mjs')
    const phone = new RTCPeerConnection(), desktop = new RTCPeerConnection()
    try {
      const channel = phone.createDataChannel('aiturk-mobile-v1'), requests = new DataRequests(channel, () => {})
      const remoteReady = new Promise(resolve => { desktop.ondatachannel = event => {
        event.channel.onmessage = incoming => {
          const request = JSON.parse(incoming.data)
          sendFrame(event.channel, { id: request.id, result: { action: request.action, text: 'Türkçe 🟢 '.repeat(24000) } })
        }
        event.channel.onopen = resolve
      } })
      await phone.setLocalDescription(await phone.createOffer()); await completeIce(phone)
      await desktop.setRemoteDescription(phone.localDescription)
      await desktop.setLocalDescription(await desktop.createAnswer()); await completeIce(desktop)
      await phone.setRemoteDescription(desktop.localDescription)
      await Promise.race([remoteReady, new Promise((_, reject) => setTimeout(() => reject(new Error('WebRTC timeout')), 15000))])
      if (channel.readyState !== 'open') await new Promise(resolve => channel.onopen = resolve)
      const response = await requests.call('session.history', { sessionId: 'fixture' })
      return { length: response.text.length, expected: 'Türkçe 🟢 '.repeat(24000).length, action: response.action,
        connectionState: phone.connectionState, dtls: phone.sctp.transport.state }
    } finally { phone.close(); desktop.close() }
  })
  assert.equal(result.length, result.expected); assert.equal(result.dtls, 'connected'); assert.equal(result.action, 'session.history')
  assert.deepEqual(errors, [])
  console.log(JSON.stringify({ onboarding: 'passed', realWebRTC: result, errors }))
} finally { await browser.close(); server.close() }