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

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()
  socket.addEventListener('message', (event) => {
    const message = JSON.parse(event.data)
    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 }
}

const valueOf = async (send, expression) => (await send('Runtime.evaluate', { expression, returnByValue: true })).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('Page reload did not emit Page.loadEventFired'))
  }, 4000)
  const onMessage = (event) => {
    const message = JSON.parse(event.data)
    if (message.method === 'Page.loadEventFired') {
      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, route, query, selector) => {
  const url = `${origin}/#${route}${query}`
  await send('Page.navigate', { url })
  await waitFor(send, `location.href === ${JSON.stringify(url)}`, `${route} navigation failed`)
  await waitForPageLoad(socket, () => send('Page.reload'))
  await waitFor(send, `Boolean(document.querySelector(${JSON.stringify(selector)}))`, `${route}${query} did not render`)
}

const setFieldValue = async (send, selector, value) => {
  const prepared = await valueOf(send, `(() => {
    const field = document.querySelector(${JSON.stringify(selector)})
    if (!field) return false
    field.value = ${JSON.stringify(value)}
    field.dispatchEvent(new Event('input', { bubbles: true }))
    return true
  })()`)
  if (!prepared) throw new Error(`Could not prepare field: ${selector}`)
  await sleep(50)
}

const run = async () => {
  const { socket, send } = await connect()
  try {
    await send('Page.enable')
    await send('Runtime.enable')

    // 步骤一：G11 从真实表单触发必填校验，再保存有效名称并进入成功反馈。
    await open(socket, send, '/pages/genealogy/g11-genealogy-settings', '?genealogyId=1001', '.settings-state--form')
    await setFieldValue(send, '.settings-field input', '')
    await valueOf(send, "document.querySelector('.settings-action').click()")
    await waitFor(send, "Boolean(document.querySelector('.settings-field-error'))", 'G11 empty name did not show inline validation')
    await setFieldValue(send, '.settings-field input', '某氏家谱')
    await valueOf(send, "document.querySelector('.settings-action').click()")
    await waitFor(send, "Boolean(document.querySelector('.settings-state--success'))", 'G11 valid save did not enter success state')
    await waitFor(send, "Boolean(document.querySelector('.settings-feedback'))", 'G11 valid save did not show feedback')
    if (!(await valueOf(send, "document.body.textContent.includes('尚未提交服务器')"))) throw new Error('G11 local settings preview claimed a server save')
    await open(socket, send, '/pages/genealogy/g11-genealogy-settings', '?state=success&genealogyId=1001', '.settings-state--success')
    await open(socket, send, '/pages/genealogy/g11-genealogy-settings', '?role=owner&state=form&genealogyId=1002', '.settings-state--no-permission')
    if (await valueOf(send, "Boolean(document.querySelector('.settings-form'))")) throw new Error('G11 trusted a forged owner role for a non-owner genealogy')

    // 步骤二：G12 依次验证空内容、非法字符和本地保存成功，结果不能只靠查询参数摆出。
    await open(socket, send, '/pages/genealogy/g12-generation-poems', '?genealogyId=1001', '.poem-state--list')
    await open(socket, send, '/pages/genealogy/g12-generation-poems', '?genealogyId=1002', '.poem-state--list')
    if (await valueOf(send, "Boolean(document.querySelector('.header-action, .poem-list > .poem-action'))")) throw new Error('G12 member view exposed an owner maintenance entry')
    await open(socket, send, '/pages/genealogy/g12-generation-poems', '?role=owner&state=edit&genealogyId=1002', '.poem-state--no-permission')
    await open(socket, send, '/pages/genealogy/g12-generation-poems', '?state=list&genealogyId=2001', '.poem-state--no-permission')
    await open(socket, send, '/pages/genealogy/g12-generation-poems', '?state=empty&genealogyId=1001', '.poem-state--empty')
    await open(socket, send, '/pages/genealogy/g12-generation-poems', '?state=edit&genealogyId=1001', '.poem-state--edit')
    await setFieldValue(send, '.poem-field textarea', '临时草稿')
    await valueOf(send, "document.querySelector('.poem-editor__actions .poem-action:first-child').click()")
    await waitFor(send, "Boolean(document.querySelector('.app-dialog-layer'))", 'G12 dirty cancel did not open the shared discard confirmation')
    await valueOf(send, "document.querySelector('.app-dialog__actions .app-button:first-child').click()")
    await waitFor(send, "Boolean(document.querySelector('.poem-state--edit'))", 'G12 continuing edit did not keep the editor open')
    await valueOf(send, "document.querySelector('.poem-editor__actions .poem-action:first-child').click()")
    await waitFor(send, "Boolean(document.querySelector('.app-dialog-layer'))", 'G12 second dirty cancel did not reopen confirmation')
    await valueOf(send, "document.querySelector('.app-dialog__actions .app-button:last-child').click()")
    await waitFor(send, "Boolean(document.querySelector('.poem-state--list'))", 'G12 confirmed discard did not restore the editor origin')
    await open(socket, send, '/pages/genealogy/g12-generation-poems', '?state=edit&genealogyId=1001', '.poem-state--edit')
    await setFieldValue(send, '.poem-field textarea', '')
    await valueOf(send, "document.querySelector('.poem-editor__actions .poem-action:last-child').click()")
    await waitFor(send, "document.querySelector('.poem-field-error')?.textContent.includes('请录入字辈内容')", 'G12 empty poem did not show validation')
    await setFieldValue(send, '.poem-field textarea', '启'.repeat(501))
    await valueOf(send, "document.querySelector('.poem-editor__actions .poem-action:last-child').click()")
    await waitFor(send, "document.querySelector('.poem-field-error')?.textContent.includes('最多录入 500 个世代')", 'G12 generation limit did not render')

    // 步骤三：走完整的保留、停用和取消恢复接线，不能只证明纯函数会合并。
    await setFieldValue(send, '.poem-field textarea', '启 宗 敦')
    await valueOf(send, "document.querySelector('.poem-editor__actions .poem-action:last-child').click()")
    await waitFor(send, "document.querySelectorAll('.poem-row').length === 4", 'G12 disableMissing=false did not preserve the uncovered tail')
    if (await valueOf(send, "document.querySelector('.poem-row:last-child')?.classList.contains('poem-row--disabled')")) throw new Error('G12 disableMissing=false unexpectedly disabled the tail')
    if (!(await valueOf(send, "document.querySelector('.poem-row:last-child .poem-row__character')?.textContent.includes('本')"))) throw new Error('G12 disableMissing=false did not preserve the tail text')

    await valueOf(send, "document.querySelector('.header-action').click()")
    await waitFor(send, "Boolean(document.querySelector('.poem-state--edit'))", 'G12 maintenance action did not reopen the editor')
    await valueOf(send, "document.querySelector('.poem-policy__option').click()")
    await valueOf(send, "document.querySelector('.poem-editor__actions .poem-action:last-child').click()")
    await waitFor(send, "document.querySelector('.poem-row:last-child')?.classList.contains('poem-row--disabled')", 'G12 disableMissing=true did not disable the uncovered tail')
    if (!(await valueOf(send, "document.querySelector('.poem-row:last-child .poem-row__character')?.textContent.includes('本')"))) throw new Error('G12 disabled tail lost its historical text')
    if ((await valueOf(send, "document.querySelectorAll('.poem-row--current').length")) !== 1) throw new Error('G12 did not keep exactly one active current generation')
    if (await valueOf(send, "document.querySelector('.poem-row--current')?.classList.contains('poem-row--disabled')")) throw new Error('G12 marked a disabled generation as current')

    await valueOf(send, "document.querySelector('.header-action').click()")
    await waitFor(send, "Boolean(document.querySelector('.poem-state--edit'))", 'G12 did not reopen after disabling the tail')
    await setFieldValue(send, '.poem-field textarea', '临时草稿')
    await valueOf(send, "document.querySelector('.poem-policy__option').click()")
    await valueOf(send, "document.querySelector('.poem-editor__actions .poem-action:first-child').click()")
    await waitFor(send, "Boolean(document.querySelector('.app-dialog-layer'))", 'G12 policy change did not trigger discard confirmation')
    await valueOf(send, "document.querySelector('.app-dialog__actions .app-button:last-child').click()")
    await waitFor(send, "Boolean(document.querySelector('.poem-state--list'))", 'G12 confirmed policy discard did not leave the editor')
    await valueOf(send, "document.querySelector('.header-action').click()")
    await waitFor(send, "Boolean(document.querySelector('.poem-state--edit'))", 'G12 did not reopen after policy discard')
    if (!(await valueOf(send, "document.querySelector('.poem-policy__option')?.textContent.includes('停用并保留记录')"))) throw new Error('G12 discard did not restore disableMissing=true')
    if ((await valueOf(send, "document.querySelector('.poem-field textarea')?.value")) !== '启 宗 敦') throw new Error('G12 discard did not restore the poem draft snapshot')

    // 步骤四：500×50 个补充平面字符接近双重上限，验证 textarea、解析、保存与分批渲染。
    const maximumPoem = Array.from({ length: 500 }, () => '𠀀'.repeat(50)).join(' ')
    if (Array.from(maximumPoem).length !== 25499 || maximumPoem.length !== 50499) throw new Error('G12 maximum Unicode fixture is malformed')
    await setFieldValue(send, '.poem-field textarea', maximumPoem)
    await valueOf(send, "document.querySelector('.poem-editor__actions .poem-action:last-child').click()")
    await waitFor(send, "Boolean(document.querySelector('.poem-state--list'))", 'G12 valid save did not return to the list')
    await waitFor(send, "Boolean(document.querySelector('.poem-feedback'))", 'G12 valid save did not show feedback')
    if (!(await valueOf(send, "document.querySelector('.poem-feedback')?.textContent.includes('本地字辈预览已更新')"))) throw new Error('G12 local save feedback is not explicit')
    if ((await valueOf(send, "document.querySelectorAll('.poem-row').length")) !== 50) throw new Error('G12 did not render the 500-generation list in 50-row batches')
    if (!(await valueOf(send, "document.querySelector('.poem-load-more')?.textContent.includes('剩余 450 代')"))) throw new Error('G12 first batch did not expose the remaining generation count')
    for (let batch = 1; batch < 10; batch += 1) {
      await valueOf(send, "document.querySelector('.poem-load-more')?.click()")
      await sleep(30)
    }
    await waitFor(send, "document.querySelectorAll('.poem-row').length === 500 && !document.querySelector('.poem-load-more')", 'G12 did not make the final generation reachable')
    if (!(await valueOf(send, "[...document.querySelectorAll('.poem-row__number')].at(-1)?.textContent.includes('第 500 世')"))) throw new Error('G12 final generation is not reachable')
    if (!(await valueOf(send, "document.documentElement.scrollWidth <= innerWidth && [...document.querySelectorAll('.poem-row__character')].every((item) => item.scrollWidth <= item.clientWidth)"))) throw new Error('G12 legal supplementary 50-character generation text overflowed its row')
    process.stdout.write('G11-G12-SETTINGS-POEMS-RUNTIME-SMOKE PASS\n')
  } finally {
    socket.close()
  }
}

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