/**
 * 从 mpConfig.mpUi.pagePopupItems 按 pagePath + key 取文案（管理端 CRUD）。
 * 兼容旧版 mpUi.memberDetailPage / readPage 字段。
 *
 * 当前代码显式引用的键（与 soul-admin 默认种子 / db.defaultMpUi 一致，勿改 key 除非双端同步）：
 * - MEMBER_PATH unlockIntroTitle, unlockIntroBody → member-detail.js _showUnlockIntroThenLogin
 * - READ_PATH beforeLoginHint, singlePageTitle, singlePagePaywallHint → read.js onLoad
 */

const MEMBER_PATH = '/pages/member-detail/member-detail'
const READ_PATH = '/pages/read/read'

function getList(app) {
  const mpUi = app.globalData.configCache && app.globalData.configCache.mpConfig
    ? app.globalData.configCache.mpConfig.mpUi
    : null
  const list = mpUi && mpUi.pagePopupItems
  return Array.isArray(list) ? list : []
}

/**
 * @param {object} app getApp()
 * @param {string} pagePath 如 /pages/read/read
 * @param {string} key 英文键
 * @returns {string} 文案，未配置时返回空串
 */
function getPagePopupContent(app, pagePath, key) {
  const list = getList(app)
  const it = list.find(function (p) {
    return p && p.pagePath === pagePath && p.key === key
  })
  if (it && typeof it.content === 'string') return it.content.trim()
  return ''
}

/**
 * 带旧版 readPage / memberDetailPage 兜底
 */
function getReadPageContent(app, key) {
  const v = getPagePopupContent(app, READ_PATH, key)
  if (v) return v
  const rp = (app.globalData.configCache && app.globalData.configCache.mpConfig &&
    app.globalData.configCache.mpConfig.mpUi &&
    app.globalData.configCache.mpConfig.mpUi.readPage) || {}
  if (key === 'beforeLoginHint') return String(rp.beforeLoginHint || '').trim()
  if (key === 'singlePageTitle') return String(rp.singlePageTitle || '').trim()
  if (key === 'singlePagePaywallHint') return String(rp.singlePagePaywallHint || '').trim()
  return ''
}

function getMemberDetailContent(app, key) {
  const v = getPagePopupContent(app, MEMBER_PATH, key)
  if (v) return v
  const md = (app.globalData.configCache && app.globalData.configCache.mpConfig &&
    app.globalData.configCache.mpConfig.mpUi &&
    app.globalData.configCache.mpConfig.mpUi.memberDetailPage) || {}
  if (key === 'unlockIntroTitle') return String(md.unlockIntroTitle || '').trim()
  if (key === 'unlockIntroBody') return String(md.unlockIntroBody || '').trim()
  return ''
}

module.exports = {
  getPagePopupContent,
  getReadPageContent,
  getMemberDetailContent,
  MEMBER_PATH,
  READ_PATH,
}