/*
 * 启点读书 Cookie 自动获取/更新 - Quantumult X
 * 只负责抓取 Cookie 并弹窗展示“复制给 Autman 机器人”的快速登录命令，不主动请求 Autman，也不本地持久化。
 *
 * 抓取：打开起点读书 App → 我的 → 福利中心。
 * 抓到后会：
 *   1. 解析 uid 用于确认账号已识别
 *   2. 通知/弹窗里展示原项目风格 JSON Map 快速登录命令，便于直接复制
 */

function getHeader(headers, name) {
  const lower = String(name).toLowerCase()
  for (const k in (headers || {})) if (String(k).toLowerCase() === lower) return headers[k]
  return ''
}
function parseCookie(cookie) {
  const jar = {}
  String(cookie || '').split(';').forEach(part => {
    const i = part.indexOf('=')
    if (i <= 0) return
    const k = part.slice(0, i).trim()
    const v = part.slice(i + 1).trim()
    if (k) jar[k] = v
  })
  return jar
}
function b64decode(s) {
  let raw = String(s || '').trim()
  try { raw = decodeURIComponent(raw) } catch (e) {}
  raw = raw.replace(/-/g, '+').replace(/_/g, '/')
  while (raw.length % 4) raw += '='
  try { return decodeURIComponent(escape(atob(raw))) } catch (e) { return '' }
}
function isRealUid(uid) {
  uid = String(uid === undefined || uid === null ? '' : uid).trim()
  return /^\d{5,}$/.test(uid) ? uid : ''
}
function uidFromQDHeader(qdheader) {
  const decoded = b64decode(qdheader)
  if (!decoded) return ''
  const parts = decoded.split('|').map(x => String(x || '').trim())
  // QDReader 抓包里 QDHeader 第一段可能是 (null)，真实 UserId 常在第 12 段（索引 11）。
  // 只接受足够长的数字，避免把 1179/2556/版本号等设备字段误当账号。
  for (const idx of [0, 11]) {
    const uid = isRealUid(parts[idx])
    if (uid) return uid
  }
  return ''
}
function parseJson(s, def) { try { return JSON.parse(s) } catch (e) { return def } }
function findUid(obj) {
  if (!obj || typeof obj !== 'object') return ''
  const keys = ['UserId', 'userId', 'UserID', 'userid', 'uid', 'UID']
  for (const key of keys) {
    const uid = isRealUid(obj[key])
    if (uid) return uid
  }
  for (const key in obj) {
    const val = obj[key]
    if (val && typeof val === 'object') {
      const found = findUid(val)
      if (found) return found
    }
  }
  return ''
}
function getUid(cookie, body) {
  const jar = parseCookie(cookie)
  let uid = uidFromQDHeader(jar.QDHeader || jar.qdheader || jar.QDHEADER || '')
  if (uid) return uid
  uid = isRealUid(jar.uid || jar.userid || jar.userId || jar.UserId)
  if (uid) return uid
  const obj = parseJson(body || '', null)
  uid = findUid(obj)
  if (uid) return uid
  return isRealUid(jar.ywguid || jar.gwguid || jar.guid)
}
function notify(title, sub, msg) {
  $notify(title, sub || '', msg || '')
}

const cookie = getHeader($request && $request.headers, 'Cookie')
if (!cookie) {
  notify('启点读书', 'Cookie 获取失败', '请求中没有 Cookie')
  $done({})
} else {
  const body = typeof $response !== 'undefined' ? ($response.body || '') : ''
  const uid = getUid(cookie, body)
  if (!uid) {
    notify('启点读书', 'Cookie 获取失败', '无法识别 uid，请确认已登录并进入福利中心')
    $done({})
  } else {
    // 发给 Autman 机器人的完整快速登录命令，保持原项目 {"uid":"cookie"} 数据格式。
    const submitText = `启点ck ${JSON.stringify({ [uid]: cookie })}`
    const msg = submitText
    notify('启点读书', '抓取成功', msg)
    $done({})
  }
}