const sleep = (milliseconds) => new Promise((resolve) => setTimeout(resolve, milliseconds))
const origin = process.argv[2] || 'http://localhost:5173'
const route = '/pages/genealogy/g05-genealogy-overview'

const connect = async () => {
  const pages = await (await fetch('http://127.0.0.1:9222/json/list')).json()
  const page = pages.find((item) => item.type === 'page' && item.url.startsWith(`${origin}/`))
  if (!page) throw new Error(`Chrome debugging has no ${origin} application page`)
  const socket = new WebSocket(page.webSocketDebuggerUrl)
  await new Promise((resolve, reject) => {
    socket.addEventListener('open', resolve, { once: true })
    socket.addEventListener('error', reject, { once: true })
  })
  let id = 0
  const pending = new Map()
  const exceptions = []
  socket.addEventListener('message', (event) => {
    const message = JSON.parse(event.data)
    if (message.method === 'Runtime.exceptionThrown') exceptions.push(message.params.exceptionDetails.text)
    const request = pending.get(message.id)
    if (!request) return
    pending.delete(message.id)
    message.error ? request.reject(new Error(message.error.message)) : request.resolve(message.result)
  })
  const send = (method, params = {}) => new Promise((resolve, reject) => {
    id += 1
    pending.set(id, { resolve, reject })
    socket.send(JSON.stringify({ id, method, params }))
  })
  return { socket, send, exceptions }
}

const valueOf = async (send, expression) => {
  const result = await send('Runtime.evaluate', { expression, returnByValue: true })
  if (result.exceptionDetails) throw new Error(result.exceptionDetails.exception?.description || result.exceptionDetails.text)
  return result.result?.value
}
const waitFor = async (send, expression, message) => {
  for (let attempt = 0; attempt < 40; attempt += 1) {
    if (await valueOf(send, expression)) return
    await sleep(100)
  }
  throw new Error(message)
}
const waitForPageLoad = async (socket, trigger) => new Promise((resolve, reject) => {
  const timeout = setTimeout(() => {
    socket.removeEventListener('message', onMessage)
    reject(new Error('G05 reload did not emit Page.loadEventFired'))
  }, 4000)
  const onMessage = (event) => {
    const message = JSON.parse(event.data)
    if (message.method !== 'Page.loadEventFired') return
    clearTimeout(timeout)
    socket.removeEventListener('message', onMessage)
    resolve()
  }
  socket.addEventListener('message', onMessage)
  Promise.resolve().then(trigger).catch((error) => {
    clearTimeout(timeout)
    socket.removeEventListener('message', onMessage)
    reject(error)
  })
})
const open = async (socket, send, query, selector) => {
  const url = `${origin}/#${route}${query}`
  await send('Page.navigate', { url })
  await waitFor(send, `location.href === ${JSON.stringify(url)}`, 'G05 navigation failed')
  const documentTimeOrigin = await valueOf(send, 'performance.timeOrigin')
  await waitForPageLoad(socket, () => send('Page.reload'))
  await waitFor(send, `performance.timeOrigin !== ${JSON.stringify(documentTimeOrigin)}`, `G05 ${query} did not reload into a fresh document`)
  await waitFor(send, `Boolean(document.querySelector(${JSON.stringify(selector)}))`, `G05 ${query} did not render`)
}

const run = async () => {
  const { socket, send, exceptions } = await connect()
  try {
    await send('Page.enable')
    await send('Runtime.enable')
    await open(socket, send, '?state=empty', '.overview-state--empty')
    await open(socket, send, '?state=error&genealogyId=1001', '.overview-state--error')
    await open(socket, send, '?state=no-permission&genealogyId=1001', '.overview-state--no-permission')
    await open(socket, send, '?mode=public&genealogyId=2001', '.overview-public')
    if ((await valueOf(send, "document.querySelectorAll('.overview-public__details > uni-view').length")) !== 5) throw new Error('G05 public preview is missing identity details')
    if (await valueOf(send, "Boolean(document.querySelector('.overview-actions'))")) throw new Error('G05 public preview exposed member actions')
    await valueOf(send, "document.querySelector('.overview-public__action').click()")
    await waitFor(send, "location.href.includes('/pages/genealogy/g08-join-application?source=search&genealogyId=2001')", 'G05 public apply action did not open G08 search source')

    await open(socket, send, '?role=member&genealogyId=1001', '.overview-ready')
    if ((await valueOf(send, "document.querySelectorAll('.overview-action').length")) !== 2) throw new Error('G05 member overview exposed owner actions')
    if (await valueOf(send, "document.querySelector('.header-action')?.textContent.trim().length > 0")) throw new Error('G05 member overview exposed management action')

    await open(socket, send, '?genealogyId=1001', '.overview-ready')
    if ((await valueOf(send, "document.querySelectorAll('.overview-action').length")) !== 4) throw new Error('G05 owner overview is missing management actions')
    await valueOf(send, "document.querySelector('.overview-action--ancestor')?.click()")
    await waitFor(send, "location.href.includes('/pages/genealogy/g03-create-genealogy?step=ancestor&genealogyId=1001')", 'G05 ancestor action did not open the G03 ancestor step')

    for (const size of [{ width: 320, height: 568 }, { width: 360, height: 800 }, { width: 412, height: 915 }]) {
      await send('Emulation.setDeviceMetricsOverride', { ...size, deviceScaleFactor: 1, mobile: true })
      await open(socket, send, '?mode=public&genealogyId=2001', '.overview-public')
      const width = await valueOf(send, 'document.documentElement.scrollWidth')
      if (width > size.width + 1) throw new Error(`G05 has horizontal overflow at ${size.width}x${size.height}`)
    }
    if (exceptions.length) throw new Error(`G05 raised browser exceptions: ${exceptions.join('; ')}`)
    process.stdout.write('G05-OVERVIEW-RUNTIME-SMOKE PASS\n')
  } finally {
    try { await send('Emulation.clearDeviceMetricsOverride') } catch (_) {}
    socket.close()
  }
}

run().catch((error) => {
  process.stderr.write(`${error.stack || error.message}\n`)
  process.exit(1)
})