/**
 * Soul创业派对 - 阅读页（标准流程版）
 * 开发: 卡若
 * 技术支持: 存客宝
 *
 * 更新: 2026-02-04
 * - 引入权限管理器（chapterAccessManager）统一权限判断
 * - 引入阅读追踪器（readingTracker）记录阅读进度、时长、是否读完
 * - 使用状态机（accessState）规范权限流转
 * - 异常统一保守处理，避免误解锁
 *
 * 更新: 正文 @某人（TipTap HTML <span data-type="mention">）
 * - contentSegments 解析每行，mention 高亮可点；点击→确认→登录/资料校验→POST /api/miniprogram/ckb/lead
 */

import accessManager from '../../utils/chapterAccessManager'
import readingTracker from '../../utils/readingTracker'
const { parseScene } = require('../../utils/scene.js')
const contentParser = require('../../utils/contentParser.js')
const { trackClick } = require('../../utils/trackClick')

const app = getApp()

Page({
  data: {
    // 系统信息
    statusBarHeight: 44,
    navBarHeight: 88,
    
    // 章节信息
    sectionId: '',
    section: null,
    partTitle: '',
    chapterTitle: '',
    
    // 内容
    content: '',
    previewContent: '',
    contentParagraphs: [],
    contentSegments: [], // 每行解析为 [{type:'text'|'mention', text?, userId?, nickname?}]
    previewParagraphs: [],
    loading: true,
    
    // 【新增】权限状态机（替代 canAccess）
    // unknown: 加载中 | free: 免费 | locked_not_login: 未登录 | locked_not_purchased: 未购买 | unlocked_purchased: 已购买 | error: 错误
    accessState: 'unknown',
    
    // 用户状态
    isLoggedIn: false,
    hasFullBook: false,
    canAccess: false, // 保留兼容性，从 accessState 派生
    purchasedCount: 0,
    
    // 阅读进度
    readingProgress: 0,
    showPaywall: false,
    
    // 上一篇/下一篇
    prevSection: null,
    nextSection: null,
    
    // 价格
    sectionPrice: 1,
    fullBookPrice: 9.9,
    totalSections: 62,
    
    // 弹窗
    showShareModal: false,
    showGiftModal: false,
    giftQuantity: 6,
    giftUnitPrice: 0,
    giftTotalPrice: '0.00',
    giftPaying: false,
    giftPaid: false,
    giftRequestSn: '',
    showLoginModal: false,
    agreeProtocol: false,
    showPosterModal: false,
    isPaying: false,
    isGeneratingPoster: false,

    // 章节 mid（扫码/海报分享用，便于分享 path 带 mid）
    sectionMid: null,

    // 余额（用于余额支付）
    walletBalance: 0,

    // 审核模式：隐藏购买按钮
    auditMode: false,

    // 好友从代付分享进入：待自动领取的 requestSn
    pendingGiftRequestSn: '',
  },

  onShow() {
    this.setData({ auditMode: app.globalData.auditMode || false })
  },

  async onLoad(options) {
    wx.showShareMenu({ menus: ['shareAppMessage', 'shareTimeline'] })

    // 预加载：core+auditMode（getConfig）+ read-extras 懒加载（linkTags、linkedMiniprograms）
    Promise.all([
      app.getConfig(),
      app.getReadExtras()
    ]).then(([cfg, extras]) => {
      if (cfg) {
        const mp = (cfg && cfg.mpConfig) || {}
        const auditMode = !!mp.auditMode
        app.globalData.auditMode = auditMode
        if (typeof this.setData === 'function') this.setData({ auditMode })
      }
      if (extras && Array.isArray(extras.linkTags)) {
        app.globalData.linkTagsConfig = extras.linkTags
        app.globalData.linkedMiniprograms = extras.linkedMiniprograms || []
      }
    }).catch(() => {})

    // 支持 scene（扫码）、mid、id、ref、gift（代付）
    const sceneStr = (options && options.scene) || ''
    const parsed = parseScene(sceneStr)
    const isGift = options.gift === '1' || options.gift === 'true'
    // 代付：分享链路使用 requestSn（优先 options.requestSn；兼容旧链路 gift=1&ref=requestSn）
    const giftRequestSn = (options.requestSn || (isGift ? (options.ref || parsed.ref) : '') || '').trim()
    // 推荐码：仅在非代付链路使用 ref
    const ref = (!isGift ? (options.ref || parsed.ref) : '') || ''
    const mid = options.mid ? parseInt(options.mid, 10) : (parsed.mid || app.globalData.initialSectionMid || 0)
    let id = options.id || parsed.id || app.globalData.initialSectionId
    if (app.globalData.initialSectionMid) delete app.globalData.initialSectionMid
    if (app.globalData.initialSectionId) delete app.globalData.initialSectionId

    console.log("页面：",mid);

    // 兼容：mid 有值但无 id 时，用 by-mid 解析 id；有 id 无 mid 时，后续用 by-id 请求
    if (mid && !id) {
      try {
        const resolveUrl = `/api/miniprogram/book/chapter/by-mid/${mid}`
        const uid = app.globalData.userInfo?.id
        const chRes = await app.request({ url: uid ? resolveUrl + '?userId=' + encodeURIComponent(uid) : resolveUrl, silent: true })
        if (chRes && chRes.id) id = chRes.id
      } catch (e) {
        console.warn('[Read] by-mid 解析失败:', e)
      }
    }

    if (!id) {
      wx.showToast({ title: '章节参数缺失', icon: 'none' })
      this.setData({ accessState: 'error', loading: false })
      return
    }

    this.setData({
      statusBarHeight: app.globalData.statusBarHeight,
      navBarHeight: app.globalData.navBarHeight,
      sectionId: id,
      sectionMid: mid || null,
      loading: true,
      accessState: 'unknown',
      pendingGiftRequestSn: giftRequestSn || ''
    })

    if (ref) {
      console.log('[Read] 检测到推荐码:', ref)
      wx.setStorageSync('referral_code', ref)
      app.handleReferralCode({ query: { ref } })
    }

    try {
      const config = await accessManager.fetchLatestConfig()
      this.setData({
        sectionPrice: config.prices?.section ?? 1,
        fullBookPrice: config.prices?.fullbook ?? 9.9
      })

      // 统一：先拉章节数据，用 isFree/price===0 判断免费
      const chapterRes = await app.request({ url: this._getChapterUrl({ id, mid }), silent: true })
      let accessState = await accessManager.determineAccessState(id, chapterRes)
      let canAccess = accessManager.canAccessFullContent(accessState)
      
      this.setData({
        accessState,
        canAccess,
        isLoggedIn: !!app.globalData.userInfo?.id,
        showPaywall: !canAccess
      })
      
      // 加载内容（复用已拉取的章节数据，避免二次请求）
      await this.loadContent(id, accessState, chapterRes)

      // 代付自动领取：好友打开阅读页时自动领取并解锁
      if (this.data.pendingGiftRequestSn) {
        const redeemed = await this._tryAutoRedeemGift(this.data.pendingGiftRequestSn)
        if (redeemed) {
          // 领取成功后刷新章节与权限（保守：重新拉章节数据 + 重新判断权限）
          await accessManager.refreshUserPurchaseStatus()
          const freshChapterRes = await app.request({ url: this._getChapterUrl({ id, mid }), silent: true })
          accessState = await accessManager.determineAccessState(id, freshChapterRes)
          canAccess = accessManager.canAccessFullContent(accessState)
          this.setData({ accessState, canAccess, showPaywall: !canAccess, pendingGiftRequestSn: '' })
          if (canAccess) {
            await this.loadContent(id, accessState, freshChapterRes)
            readingTracker.init(id)
          }
        }
      }
      
      // 【标准流程】4. 如果有权限，初始化阅读追踪
      if (canAccess) {
        readingTracker.init(id)
      }
      
      // 5. 导航：文章详情已带 prev/next
      this._applyPrevNext(chapterRes)
      
    } catch (e) {
      console.error('[Read] 初始化失败:', e)
      wx.showToast({ title: '加载失败，请重试', icon: 'none' })
      this.setData({ accessState: 'error', loading: false })
    } finally {
      this.setData({ loading: false })
    }
  },

  _getGiftUnitPrice() {
    const p = this.data.section?.price
    const cfg = this.data.sectionPrice
    const v = (p != null && p !== '') ? Number(p) : Number(cfg || 0)
    return isNaN(v) ? 0 : v
  },

  _updateGiftTotalPrice() {
    const unit = this.data.giftUnitPrice || this._getGiftUnitPrice()
    const q = parseInt(this.data.giftQuantity, 10) || 0
    const total = unit * q
    this.setData({
      giftUnitPrice: unit,
      giftTotalPrice: (isNaN(total) ? 0 : total).toFixed(2)
    })
  },

  async _tryAutoRedeemGift(requestSn) {
    // 单页模式（朋友圈）不做自动领取，避免隐式登录/支付能力限制
    try {
      const sys = wx.getSystemInfoSync()
      const isSinglePage = (sys && sys.mode === 'singlePage') || app.globalData.isSinglePageMode
      if (isSinglePage) return false
    } catch (e) {}

    const userId = app.globalData.userInfo?.id
    if (!userId) {
      // 记住 requestSn，登录后自动领取
      this.setData({ pendingGiftRequestSn: requestSn })
      wx.showToast({ title: '登录后将自动领取并解锁', icon: 'none', duration: 2500 })
      this.showLoginModal()
      return false
    }
    try {
      const res = await app.request({
        url: '/api/miniprogram/gift-pay/redeem',
        method: 'POST',
        data: { requestSn, userId }
      })
      if (res && res.success) return true
      // 已领取/已无名额等都视为无需再重试
      if (res && (res.error || res.message)) {
        wx.showToast({ title: res.error || res.message || '领取失败', icon: 'none' })
      }
      this.setData({ pendingGiftRequestSn: '' })
      return false
    } catch (e) {
      console.warn('[Read][Gift] 自动领取失败:', e)
      return false
    }
  },
  
  // 从后端加载免费章节配置
  onPageScroll(e) {
    // 只在有权限时追踪阅读进度
    if (!accessManager.canAccessFullContent(this.data.accessState)) {
      return
    }
    
    // 获取滚动信息并更新追踪器
    const query = wx.createSelectorQuery()
    query.select('.page').boundingClientRect()
    query.selectViewport().scrollOffset()
    query.exec((res) => {
      if (res[0] && res[1]) {
        const scrollInfo = {
          scrollTop: res[1].scrollTop,
          scrollHeight: res[0].height,
          clientHeight: res[1].height
        }
        
        // 计算进度条显示（用于 UI）
        const totalScrollable = scrollInfo.scrollHeight - scrollInfo.clientHeight
        const progress = totalScrollable > 0 
          ? Math.min((scrollInfo.scrollTop / totalScrollable) * 100, 100) 
          : 0
        this.setData({ readingProgress: progress })
        
        // 更新阅读追踪器（记录最大进度、判断是否读完）
        readingTracker.updateProgress(scrollInfo)
      }
    })
  },

  // 加载章节内容：优先复用 prefetchedChapter 避免二次请求，失败时降级本地缓存
  async loadContent(id, accessState, prefetchedChapter) {
    const cacheKey = `chapter_${id}`
    try {
      const sectionPrice = this.data.sectionPrice ?? 1
      let res = prefetchedChapter
      if (!res || !res.content) {
        res = await app.request({ url: this._getChapterUrl({ id }), silent: true })
      }
      const section = {
        id: res.id || id,
        title: res.sectionTitle || res.title || this.getSectionTitle(id),
        isFree: res.isFree === true || (res.price !== undefined && res.price === 0),
        price: res.price ?? sectionPrice
      }
      this.setData({ section })

      // 已解锁用 data.content（完整内容），未解锁用 content（预览）；先 determineAccessState 再 loadContent 保证顺序正确
      const displayContent = accessManager.canAccessFullContent(accessState) ? (res.data?.content ?? res.content) : res.content
      if (res && displayContent) {
        const { lines, segments } = contentParser.parseContent(displayContent)
        // 预览内容由后端统一截取比例，这里展示全部预览内容
        const previewCount = lines.length
        const updates = {
          content: displayContent,
          contentParagraphs: lines,
          contentSegments: segments,
          previewParagraphs: lines.slice(0, previewCount),
          partTitle: res.partTitle || '',
          chapterTitle: res.chapterTitle || ''
        }
        if (res.mid) updates.sectionMid = res.mid
        this.setData(updates)
        // 写入本地缓存（存 displayContent，供离线/重试降级使用）
        try { wx.setStorageSync(cacheKey, { ...res, content: displayContent }) } catch (_) {}
        if (accessManager.canAccessFullContent(accessState)) {
          app.markSectionAsRead(id)
        }
      }
    } catch (e) {
      console.error('[Read] 加载内容失败，尝试本地缓存:', e)
      try {
        const cached = wx.getStorageSync(cacheKey)
        if (cached && cached.content) {
      const { lines, segments } = contentParser.parseContent(cached.content)
      // 预览内容由后端统一截取比例，这里展示全部预览内容
      const previewCount = lines.length
          this.setData({
            content: cached.content,
            contentParagraphs: lines,
            contentSegments: segments,
            previewParagraphs: lines.slice(0, previewCount),
            partTitle: cached.partTitle || '',
            chapterTitle: cached.chapterTitle || ''
          })
          console.log('[Read] 从本地缓存加载成功')
          return
        }
      } catch (cacheErr) {
        console.warn('[Read] 本地缓存也失败:', cacheErr)
      }
      throw e
    }
  },

  // 获取章节信息
  getSectionInfo(id) {
    // 特殊章节
    if (id === 'preface') {
      return { id: 'preface', title: '为什么我每天早上6点在Soul开播?', isFree: true, price: 0 }
    }
    if (id === 'epilogue') {
      return { id: 'epilogue', title: '这本书的真实目的', isFree: true, price: 0 }
    }
    if (id.startsWith('appendix')) {
      const appendixTitles = {
        'appendix-1': 'Soul派对房精选对话',
        'appendix-2': '创业者自检清单',
        'appendix-3': '本书提到的工具和资源'
      }
      return { id, title: appendixTitles[id] || '附录', isFree: true, price: 0 }
    }
    
    // 普通章节
    return {
      id: id,
      title: this.getSectionTitle(id),
      isFree: id === '1.1',
      price: 1
    }
  },

  // 获取章节标题
  getSectionTitle(id) {
    const titles = {
      '1.1': '荷包：电动车出租的被动收入模式',
      '1.2': '老墨:资源整合高手的社交方法',
      '1.3': '笑声背后的MBTI',
      '1.4': '人性的三角结构：利益、情感、价值观',
      '1.5': '沟通差的问题：为什么你说的别人听不懂',
      '2.1': '相亲故事:你以为找的是人,实际是在找模式',
      '2.2': '找工作迷茫者:为什么简历解决不了人生',
      '2.3': '撸运费险:小钱困住大脑的真实心理',
      '2.4': '游戏上瘾的年轻人:不是游戏吸引他,是生活没吸引力',
      '2.5': '健康焦虑(我的糖尿病经历):疾病是人生的第一次清醒',
      '3.1': '3000万流水如何跑出来(退税模式解析)',
      '8.1': '流量杠杆:抖音、Soul、飞书',
      '9.14': '大健康私域：一个月150万的70后'
    }
    return titles[id] || `章节 ${id}`
  },

  // 根据 id/mid 构造章节接口路径：优先 mid（by-mid），否则用 id（by-id，兼容旧链接）
  _getChapterUrl(params = {}) {
    const { id, mid } = params
    const finalMid = (mid !== undefined && mid !== null) ? mid : this.data.sectionMid
    let url
    if (finalMid) {
      url = `/api/miniprogram/book/chapter/by-mid/${finalMid}`
    } else {
      const finalId = id || this.data.sectionId
      url = `/api/miniprogram/book/chapter/by-id/${encodeURIComponent(finalId)}`
    }
    const userId = app.globalData.userInfo?.id
    if (userId) url += (url.includes('?') ? '&' : '?') + 'userId=' + encodeURIComponent(userId)
    return url
  },

  
  // 带超时的章节请求
  fetchChapterWithTimeout(id, timeout = 5000) {
    return new Promise((resolve, reject) => {
      const timer = setTimeout(() => {
        reject(new Error('请求超时'))
      }, timeout)
      
      app.request(this._getChapterUrl({ id }))
        .then(res => {
          clearTimeout(timer)
          resolve(res)
        })
        .catch(err => {
          clearTimeout(timer)
          reject(err)
        })
    })
  },
  
  // 设置章节内容（兼容纯文本/Markdown 与 TipTap HTML）
  setChapterContent(res) {
    const { lines, segments } = contentParser.parseContent(res.content)
    // 预览内容由后端统一截取比例，这里展示全部预览内容
    const previewCount = lines.length
    const sectionPrice = this.data.sectionPrice ?? 1
    const sectionTitle = (res.sectionTitle || res.title || '').trim()
    
    this.setData({
      // 文章详情标题：只使用后端提供的 sectionTitle，不再拼接其他本地标题信息
      section: {
        id: res.id || this.data.sectionId,
        title: sectionTitle,
        isFree: res.isFree === true || (res.price !== undefined && res.price === 0),
        price: res.price ?? sectionPrice
      },
      content: res.content,
      previewContent: lines.slice(0, previewCount).join('\n'),
      contentParagraphs: lines,
      contentSegments: segments,
      previewParagraphs: lines.slice(0, previewCount),
      partTitle: res.partTitle || '',
      // 导航栏、分享等使用的文章标题，同样统一为 sectionTitle
      chapterTitle: sectionTitle
    })
  },
  
  // 静默刷新（后台更新缓存）
  async silentRefresh(id) {
    try {
      const res = await this.fetchChapterWithTimeout(id, 10000)
      if (res && res.content) {
        wx.setStorageSync(`chapter_${id}`, res)
        console.log('[Read] 后台缓存更新成功:', id)
      }
    } catch (e) {
      // 静默失败不处理
    }
  },
  
  // 重试加载
  retryLoadContent(id, maxRetries, currentRetry = 0) {
    if (currentRetry >= maxRetries) {
      this.setData({
        contentParagraphs: ['内容加载失败', '请检查网络连接后下拉刷新重试'],
        contentSegments: contentParser.parseContent('内容加载失败\n请检查网络连接后下拉刷新重试').segments,
        previewParagraphs: ['内容加载失败']
      })
      return
    }
    
    setTimeout(async () => {
      try {
        const res = await this.fetchChapterWithTimeout(id, 8000)
        if (res && res.content) {
          this.setChapterContent(res)
          wx.setStorageSync(`chapter_${id}`, res)
          console.log('[Read] 重试成功:', id, '第', currentRetry + 1, '次')
          return
        }
      } catch (e) {
        console.warn('[Read] 重试失败，继续重试:', currentRetry + 1)
      }
      this.retryLoadContent(id, maxRetries, currentRetry + 1)
    }, 2000 * (currentRetry + 1))
  },


  _applyPrevNext(res) {
    const prev = res?.prev
    const next = res?.next
    this.setData({
      prevSection: prev ? {
        id: prev.id,
        mid: prev.mid ?? null,
        title: prev.title || this.getSectionTitle(prev.id),
      } : null,
      nextSection: next ? {
        id: next.id,
        mid: next.mid ?? null,
        title: next.title || this.getSectionTitle(next.id),
      } : null,
    })
  },

  // 返回（从分享进入无栈时回首页）
  goBack() {
    getApp().goBackOrToHome()
  },

  // 点击正文中的 #链接标签：小程序内页/预览页/唤醒其他小程序
  onLinkTagTap(e) {
    let url      = (e.currentTarget.dataset.url      || '').trim()
    const label    = (e.currentTarget.dataset.label    || '').trim()
    let tagType  = (e.currentTarget.dataset.tagType  || '').trim()
    let pagePath = (e.currentTarget.dataset.pagePath || '').trim()
    let mpKey    = (e.currentTarget.dataset.mpKey    || '').trim()

    // 旧格式（<a href>）tagType 为空 → 按 label 从缓存 linkTags 补充类型信息
    if (!tagType && label) {
      const cached = (app.globalData.linkTagsConfig || []).find(t => t.label === label)
      if (cached) {
        tagType  = cached.type     || 'url'
        pagePath = cached.pagePath || ''
        if (!url) url = cached.url || ''
        if (cached.mpKey) mpKey = cached.mpKey
      }
    }

    // CKB 类型：复用 @mention 加好友流程，弹出留资表单
    if (tagType === 'ckb') {
      // 触发通用加好友（无特定 personId，使用全局 CKB Key）
      this.onMentionTap({ currentTarget: { dataset: { userId: '', nickname: label } } })
      return
    }

    // 小程序类型：用密钥查 linkedMiniprograms 得 appId，再唤醒（需在 app.json 的 navigateToMiniProgramAppIdList 中配置）
    if (tagType === 'miniprogram') {
      if (!mpKey && label) {
        const cached = (app.globalData.linkTagsConfig || []).find(t => t.label === label)
        if (cached) mpKey = cached.mpKey || ''
      }
      const linked = (app.globalData.linkedMiniprograms || []).find(m => m.key === mpKey)
      if (linked && linked.appId) {
        wx.navigateToMiniProgram({
          appId: linked.appId,
          path: pagePath || linked.path || '',
          envVersion: 'release',
          success: () => {},
          fail: (err) => {
            wx.showToast({ title: err.errMsg || '跳转失败', icon: 'none' })
          },
        })
        return
      }
      if (mpKey) wx.showToast({ title: '未找到关联小程序配置', icon: 'none' })
    }

    // 小程序内部路径（pagePath 或 url 以 /pages/ 开头）
    const internalPath = pagePath || (url.startsWith('/pages/') ? url : '')
    if (internalPath) {
      wx.navigateTo({ url: internalPath, fail: () => wx.switchTab({ url: internalPath }) })
      return
    }

    // 外部 URL：跳转到内置预览页，由 web-view 打开
    if (url) {
      const encodedUrl = encodeURIComponent(url)
      const encodedTitle = encodeURIComponent(label || '链接预览')
      wx.navigateTo({
        url: `/pages/link-preview/link-preview?url=${encodedUrl}&title=${encodedTitle}`,
      })
      return
    }

    wx.showToast({ title: '暂无跳转地址', icon: 'none' })
  },

  // 点击正文图片 → 全屏预览
  onImageTap(e) {
    const src = e.currentTarget.dataset.src
    if (!src) return
    wx.previewImage({ current: src, urls: [src] })
  },

  // 点击正文中的 @某人：确认弹窗 → 登录/资料校验 → 调用 ckb/lead 加好友留资
  onMentionTap(e) {
    const userId = e.currentTarget.dataset.userId
    const nickname = (e.currentTarget.dataset.nickname || '').trim() || 'TA'
    if (!userId) return
    wx.showModal({
      title: '添加好友',
      content: `是否添加 @${nickname} ？`,
      confirmText: '确定',
      cancelText: '取消',
      success: (res) => {
        if (!res.confirm) return
        this._doMentionAddFriend(userId, nickname)
      }
    })
  },

  // 边界：未登录→去登录；无手机/微信号→去资料编辑；重复同一人→本地 key 去重
  async _doMentionAddFriend(targetUserId, targetNickname) {
    const app = getApp()
    if (!app.globalData.isLoggedIn || !app.globalData.userInfo) {
      wx.showModal({
        title: '提示',
        content: '请先登录后再添加好友',
        confirmText: '去登录',
        cancelText: '取消',
        success: (res) => {
          if (res.confirm) wx.switchTab({ url: '/pages/my/my' })
        }
      })
      return
    }
    const myUserId = app.globalData.userInfo.id
    let phone = (app.globalData.userInfo.phone || '').trim()
    let wechatId = (app.globalData.userInfo.wechatId || app.globalData.userInfo.wechat_id || '').trim()
    if (!phone && !wechatId) {
      try {
        const profileRes = await app.request({ url: `/api/miniprogram/user/profile?userId=${myUserId}`, silent: true })
        if (profileRes?.success && profileRes.data) {
          phone = (profileRes.data.phone || '').trim()
          wechatId = (profileRes.data.wechatId || profileRes.data.wechat_id || '').trim()
        }
      } catch (e) {}
    }
    if (!phone && !wechatId) {
      wx.showModal({
        title: '完善资料',
        content: '请先填写手机号或微信号，以便对方联系您',
        confirmText: '去填写',
        cancelText: '取消',
        success: (res) => {
          if (res.confirm) wx.navigateTo({ url: '/pages/profile-edit/profile-edit' })
        }
      })
      return
    }
    // 2 分钟内只能点一次（与后端限频一致，与首页链接卡若共用）
    const leadLastTs = wx.getStorageSync('lead_last_submit_ts') || 0
    if (Date.now() - leadLastTs < 2 * 60 * 1000) {
      wx.showToast({ title: '操作太频繁，请2分钟后再试', icon: 'none' })
      return
    }
    wx.showLoading({ title: '提交中...', mask: true })
    try {
      const res = await app.request({
        url: '/api/miniprogram/ckb/lead',
        method: 'POST',
        data: {
          userId: myUserId,
          phone: phone || undefined,
          wechatId: wechatId || undefined,
          name: (app.globalData.userInfo.nickname || '').trim() || undefined,
          targetUserId,
          targetNickname: targetNickname || undefined,
          source: 'article_mention'
        }
      })
      wx.hideLoading()
      if (res && res.success) {
        wx.setStorageSync('lead_last_submit_ts', Date.now())
        wx.showToast({ title: res.message || '提交成功，对方会尽快联系您', icon: 'success' })
      } else {
        wx.showToast({ title: (res && res.message) || '提交失败', icon: 'none' })
      }
    } catch (e) {
      wx.hideLoading()
      wx.showToast({ title: (e && e.message) || '提交失败', icon: 'none' })
    }
  },

  // 分享弹窗
  showShare() {
    this.setData({ showShareModal: true })
  },

  closeShareModal() {
    this.setData({ showShareModal: false })
  },

  // 代付分享：直接跳转代付页，在代付页输入数量并支付（简化流程）
  showGiftShareModal() {
    if (!app.globalData.userInfo?.id) {
      wx.showToast({ title: '请先登录', icon: 'none' })
      return
    }
    const { sectionId } = this.data
    if (!sectionId) {
      wx.showToast({ title: '章节信息异常', icon: 'none' })
      return
    }
    this.setData({
      showGiftModal: true,
      giftPaid: false,
      giftRequestSn: '',
      giftPaying: false,
      giftQuantity: 6
    })
    this._updateGiftTotalPrice()
  },

  closeGiftModal() {
    this.setData({ showGiftModal: false })
  },

  selectGiftQuantity(e) {
    const q = parseInt(e.currentTarget.dataset.q, 10)
    if (!q || q < 1) return
    this.setData({ giftQuantity: q })
    this._updateGiftTotalPrice()
  },

  async confirmGiftPay() {
    if (this.data.giftPaying) return
    // 朋友圈单页模式禁止支付
    try {
      const sys = wx.getSystemInfoSync()
      const isSinglePage = (sys && sys.mode === 'singlePage') || app.globalData.isSinglePageMode
      if (isSinglePage) {
        wx.showModal({
          title: '朋友圈单页',
          content: '当前为朋友圈单页，无法发起代付支付。请点击底部「前往小程序」进入完整版后再操作。',
          showCancel: false
        })
        return
      }
    } catch (e) {}

    const userId = app.globalData.userInfo?.id
    if (!userId) {
      wx.showToast({ title: '请先登录', icon: 'none' })
      return
    }
    const sectionId = this.data.sectionId
    const quantity = parseInt(this.data.giftQuantity, 10)
    if (!sectionId || !quantity) {
      wx.showToast({ title: '参数异常', icon: 'none' })
      return
    }

    let openId = app.globalData.openId || wx.getStorageSync('openId')
    if (!openId) {
      wx.showLoading({ title: '获取支付凭证...', mask: true })
      openId = await app.getOpenId()
      wx.hideLoading()
    }
    if (!openId) {
      wx.showToast({ title: '请先登录', icon: 'none' })
      return
    }

    this.setData({ giftPaying: true })
    wx.showLoading({ title: '创建订单中...', mask: true })
    try {
      // 1) 创建代付请求
      const createRes = await app.request({
        url: '/api/miniprogram/gift-pay/create',
        method: 'POST',
        data: { userId, productType: 'section', productId: sectionId, quantity }
      })
      if (!createRes?.success || !createRes.requestSn) {
        throw new Error(createRes?.error || '创建失败')
      }
      const requestSn = createRes.requestSn

      // 2) 发起人支付（微信支付）
      const payRes = await app.request({
        url: '/api/miniprogram/gift-pay/initiator-pay',
        method: 'POST',
        data: { requestSn, openId, userId }
      })
      wx.hideLoading()
      if (!payRes || !payRes.success || !payRes.data?.payParams) {
        throw new Error(payRes?.error || '创建订单失败')
      }
      const payParams = payRes.data.payParams
      const orderSn = payRes.data.orderSn
      await new Promise((resolve, reject) => {
        wx.requestPayment({
          timeStamp: payParams.timeStamp,
          nonceStr: payParams.nonceStr,
          package: payParams.package,
          signType: payParams.signType || 'RSA',
          paySign: payParams.paySign,
          success: resolve,
          fail: reject
        })
      })

      // 3) 主动同步（与其他支付流程一致）
      if (orderSn) {
        try {
          await app.request(`/api/miniprogram/pay?orderSn=${encodeURIComponent(orderSn)}`, { silent: true })
        } catch (e) {}
      }

      wx.showToast({ title: '支付成功', icon: 'success' })
      this.setData({ giftPaid: true, giftRequestSn: requestSn, giftPaying: false })
    } catch (e) {
      wx.hideLoading()
      const msg = e?.message || e?.error || e?.errMsg || '支付失败'
      if (e?.errMsg && String(e.errMsg).includes('cancel')) {
        wx.showToast({ title: '已取消支付', icon: 'none' })
      } else {
        wx.showToast({ title: msg, icon: 'none', duration: 2500 })
      }
      this.setData({ giftPaying: false })
    }
  },

  // 复制链接
  copyLink() {
    const userInfo = app.globalData.userInfo
    const referralCode = userInfo?.referralCode || ''
    const shareUrl = `https://soul.quwanzhi.com/read/${this.data.sectionId}${referralCode ? '?ref=' + referralCode : ''}`
    
    wx.setClipboardData({
      data: shareUrl,
      success: () => {
        wx.showToast({ title: '链接已复制', icon: 'success' })
        this.setData({ showShareModal: false })
      }
    })
  },

  // 复制分享文案（朋友圈风格）
  copyShareText() {
    const { section } = this.data
    
    const shareText = `🔥 刚看完这篇《${section?.title || 'Soul创业派对'}》，太上头了！

62个真实商业案例，每个都是从0到1的实战经验。私域运营、资源整合、商业变现，干货满满。

推荐给正在创业或想创业的朋友，搜"Soul创业派对"小程序就能看！

#创业派对 #私域运营 #商业案例`
    
    wx.setClipboardData({
      data: shareText,
      success: () => {
        wx.showToast({ title: '文案已复制', icon: 'success' })
      }
    })
  },

  // 分享到微信 - 自动带分享人ID
  onShareAppMessage(e) {
    trackClick('read', 'btn_click', '分享_' + this.data.sectionId)
    const { section, sectionId, sectionMid } = this.data
    const ref = app.getMyReferralCode()
    const q = sectionMid ? `mid=${sectionMid}` : `id=${sectionId}`
    // 代付分享按钮（支付后）：好友打开阅读页自动领取解锁
    const isGiftShare = e?.from === 'button' && e?.target?.dataset?.gift === '1'
    const requestSn = (e?.target?.dataset?.requestSn || '').trim()
    if (isGiftShare && requestSn) {
      let path = `/pages/read/read?${q}&gift=1&requestSn=${encodeURIComponent(requestSn)}`
      if (ref) path += `&ref=${encodeURIComponent(ref)}`
      const t = section?.title || 'Soul创业派对'
      const title = `我已为你买单：${t.length > 18 ? t.slice(0, 18) + '...' : t}`
      return { title, path }
    }

    const path = ref ? `/pages/read/read?${q}&ref=${ref}` : `/pages/read/read?${q}`
    const title = section?.title
      ? `📚 ${section.title.length > 20 ? section.title.slice(0, 20) + '...' : section.title}`
      : '📚 Soul创业派对 - 真实商业故事'
    return { title, path }
  },

  // 底部「分享到朋友圈」按钮点击：微信不支持 button open-type=shareTimeline，只能通过右上角菜单分享，点击时引导用户
  onShareTimelineTap() {
    wx.showToast({
      title: '请点击右上角「...」→ 分享到朋友圈',
      icon: 'none',
      duration: 2500
    })
  },

  // 右下角悬浮按钮：分享到朋友圈（复制文案 + 引导点右上角）
  shareToMoments() {
    const title = this.data.section?.title || this.data.chapterTitle || '好文推荐'
    const raw = (this.data.content || '')
      .replace(/<[^>]+>/g, '\n')
      .replace(/&nbsp;/g, ' ')
      .replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&amp;/g, '&').replace(/&quot;/g, '"')
      .replace(/[#@]\S+/g, '')
    const sentences = raw.split(/[。！？\n]+/).map(s => s.trim()).filter(s => s.length > 4)
    const picked = sentences.slice(0, 5)
    const copyText = picked.length > 0 ? title + '\n\n' + picked.join('\n\n') : `🔥 刚看完这篇《${title}》，推荐给你！\n\n#Soul创业派对 #真实商业故事`
    wx.setClipboardData({
      data: copyText,
      success: () => {
        wx.showModal({
          title: '文案已复制',
          content: '请点击右上角「···」菜单，选择「分享到朋友圈」即可发布',
          showCancel: false,
          confirmText: '知道了'
        })
      },
      fail: () => {
        wx.showToast({ title: '复制失败，请手动复制', icon: 'none' })
      }
    })
  },

  // 分享到朋友圈：带文章标题，过长时截断
  onShareTimeline() {
    const { section, sectionId, sectionMid, chapterTitle } = this.data
    const ref = app.getMyReferralCode()
    const q = sectionMid ? `mid=${sectionMid}` : `id=${sectionId}`
    const query = ref ? `${q}&ref=${ref}` : q
    const articleTitle = (section?.title || chapterTitle || '').trim()
    const title = articleTitle
      ? (articleTitle.length > 28 ? articleTitle.slice(0, 28) + '...' : articleTitle)
      : 'Soul创业派对 - 真实商业故事'
    return { title, query }
  },

  // 显示登录弹窗（每次打开协议未勾选，符合审核要求）
  showLoginModal() {
    // 朋友圈等单页模式下，不直接弹登录，用官方推荐的方式引导用户「前往小程序」
    try {
      const sys = wx.getSystemInfoSync()
      const isSinglePage = (sys && sys.mode === 'singlePage') || app.globalData.isSinglePageMode
      if (isSinglePage) {
        wx.showModal({
          title: '请前往完整小程序',
          content: '当前为朋友圈单页，仅支持部分浏览。想登录继续阅读，请点击底部「前往小程序」后再操作。',
          showCancel: false,
          confirmText: '我知道了',
        })
        return
      }
    } catch (e) {
      console.warn('[Read] 检测单页模式失败，回退为正常登录流程:', e)
    }
    try {
      this.setData({ showLoginModal: true, agreeProtocol: false })
    } catch (e) {
      console.error('[Read] showLoginModal error:', e)
      this.setData({ showLoginModal: true })
    }
  },

  closeLoginModal() {
    this.setData({ showLoginModal: false })
  },

  toggleAgree() {
    this.setData({ agreeProtocol: !this.data.agreeProtocol })
  },

  openUserProtocol() {
    wx.navigateTo({ url: '/pages/agreement/agreement' })
  },

  openPrivacy() {
    wx.navigateTo({ url: '/pages/privacy/privacy' })
  },

  // 从服务端刷新购买状态，避免登录后误用旧数据导致误解锁
  // 【重构】微信登录（须先勾选同意协议，符合审核要求）
  async handleWechatLogin() {
    if (!this.data.agreeProtocol) {
      wx.showToast({ title: '请先阅读并同意用户协议和隐私政策', icon: 'none' })
      return
    }
    try {
      const result = await app.login()
      if (!result) return
      
      this.setData({ showLoginModal: false, agreeProtocol: false })
      await this.onLoginSuccess()
      wx.showToast({ title: '登录成功', icon: 'success' })
      
    } catch (e) {
      console.error('[Read] 登录失败:', e)
      wx.showToast({ title: '登录失败，请重试', icon: 'none' })
    }
  },

  // 【重构】手机号登录（标准流程）
  async handlePhoneLogin(e) {
    if (!e.detail.code) {
      return this.handleWechatLogin()
    }
    
    try {
      const result = await app.loginWithPhone(e.detail.code)
      if (!result) return
      
      this.setData({ showLoginModal: false })
      await this.onLoginSuccess()
      wx.showToast({ title: '登录成功', icon: 'success' })
      
    } catch (e) {
      console.error('[Read] 手机号登录失败:', e)
      wx.showToast({ title: '登录失败', icon: 'none' })
    }
  },

  // 【新增】登录成功后的标准处理流程
  async onLoginSuccess() {
    wx.showLoading({ title: '更新状态中...', mask: true })
    
    try {
      // 0. 若有代付待领取，先领取再刷新购买状态
      if (this.data.pendingGiftRequestSn) {
        try {
          const userId = app.globalData.userInfo?.id
          const requestSn = this.data.pendingGiftRequestSn
          if (userId && requestSn) {
            const res = await app.request({
              url: '/api/miniprogram/gift-pay/redeem',
              method: 'POST',
              data: { requestSn, userId }
            })
            if (res && res.success) {
              this.setData({ pendingGiftRequestSn: '' })
            }
          }
        } catch (e) {
          console.warn('[Read][Gift] 登录后自动领取失败:', e)
        }
      }
      // 1. 刷新用户购买状态（从 orders 表拉取最新）
      await accessManager.refreshUserPurchaseStatus()
      
      // 2. 重新拉取章节数据，用 isFree/price 判断免费
      const chapterRes = await app.request({
        url: this._getChapterUrl({}),
        silent: true
      })
      const newAccessState = await accessManager.determineAccessState(
        this.data.sectionId,
        chapterRes
      )
      const canAccess = accessManager.canAccessFullContent(newAccessState)
      
      this.setData({
        accessState: newAccessState,
        canAccess,
        isLoggedIn: true,
        showPaywall: !canAccess
      })
      
      // 3. 如果已解锁，重新加载内容并初始化阅读追踪
      if (canAccess) {
        await this.loadContent(this.data.sectionId, newAccessState, chapterRes)
        readingTracker.init(this.data.sectionId)
      }
      
      wx.hideLoading()
      
    } catch (e) {
      wx.hideLoading()
      console.error('[Read] 登录后更新状态失败:', e)
      wx.showToast({ title: '状态更新失败，请重试', icon: 'none' })
    }
  },

  // 购买章节 - 直接调起支付
  async handlePurchaseSection() {
    trackClick('read', 'btn_click', '购买章节_' + this.data.sectionId)
    console.log('[Pay] 点击购买章节按钮')
    wx.showLoading({ title: '处理中...', mask: true })
    
    if (!this.data.isLoggedIn) {
      wx.hideLoading()
      console.log('[Pay] 用户未登录，显示登录弹窗')
      this.setData({ showLoginModal: true })
      return
    }
    
    const price = this.data.section?.price || 1
    console.log('[Pay] 开始支付流程:', { sectionId: this.data.sectionId, price })
    wx.hideLoading()
    await this.processPayment('section', this.data.sectionId, price)
  },

  // 购买全书 - 直接调起支付
  async handlePurchaseFullBook() {
    console.log('[Pay] 点击购买全书按钮')
    wx.showLoading({ title: '处理中...', mask: true })
    
    if (!this.data.isLoggedIn) {
      wx.hideLoading()
      console.log('[Pay] 用户未登录，显示登录弹窗')
      this.setData({ showLoginModal: true })
      return
    }
    
    console.log('[Pay] 开始支付流程: 全书', { price: this.data.fullBookPrice })
    wx.hideLoading()
    await this.processPayment('fullbook', null, this.data.fullBookPrice)
  },

  // 处理支付 - 调用真实微信支付接口
  async processPayment(type, sectionId, amount) {
    console.log('[Pay] processPayment开始:', { type, sectionId, amount })
    
    // 检查金额是否有效
    if (!amount || amount <= 0) {
      console.error('[Pay] 金额无效:', amount)
      wx.showToast({ title: '价格信息错误', icon: 'none' })
      return
    }
    
    // ✅ 从服务器查询是否已购买（基于 orders 表）
    try {
      wx.showLoading({ title: '检查购买状态...', mask: true })
      const userId = app.globalData.userInfo?.id
      
      if (userId) {
        const checkRes = await app.request(`/api/miniprogram/user/purchase-status?userId=${userId}`)
        
        if (checkRes.success && checkRes.data) {
          // 更新本地购买状态
          app.globalData.hasFullBook = checkRes.data.hasFullBook
          app.globalData.purchasedSections = checkRes.data.purchasedSections || []
          
          // 检查是否已购买
          if (type === 'section' && sectionId) {
            if (checkRes.data.purchasedSections.includes(sectionId)) {
              wx.hideLoading()
              wx.showToast({ title: '已购买过此章节', icon: 'none' })
              return
            }
          }
          
          if (type === 'fullbook' && checkRes.data.hasFullBook) {
            wx.hideLoading()
            wx.showToast({ title: '已购买全书', icon: 'none' })
            return
          }
        }
      }
    } catch (e) {
      console.warn('[Pay] 查询购买状态失败，继续支付流程:', e)
      // 查询失败不影响支付
    }
    
    this.setData({ isPaying: true })
    wx.showLoading({ title: '正在发起支付...', mask: true })
    
    try {
      // 0. 尝试余额支付（若余额足够）
      const userId = app.globalData.userInfo?.id
      const referralCode = wx.getStorageSync('referral_code') || ''
      if (userId) {
        try {
          const balanceRes = await app.request({ url: `/api/miniprogram/balance?userId=${userId}`, silent: true })
          const balance = balanceRes?.data?.balance || 0
          if (balance >= amount) {
            const productId = type === 'section' ? sectionId : (type === 'fullbook' ? 'fullbook' : '')
            const consumeRes = await app.request({
              url: '/api/miniprogram/balance/consume',
              method: 'POST',
              data: {
                userId,
                productType: type,
                productId: type === 'section' ? sectionId : (type === 'fullbook' ? 'fullbook' : 'vip_annual'),
                amount,
                referralCode: referralCode || undefined
              }
            })
            if (consumeRes?.success) {
              wx.hideLoading()
              this.setData({ isPaying: false })
              wx.showToast({ title: '购买成功', icon: 'success' })
              await this.onPaymentSuccess()
              return
            }
          }
        } catch (e) {
          console.warn('[Pay] 余额支付失败，改用微信支付:', e)
        }
      }
      
      // 1. 先获取openId (支付必需)
      let openId = app.globalData.openId || wx.getStorageSync('openId')
      
      if (!openId) {
        console.log('[Pay] 需要先获取openId，尝试静默获取')
        wx.showLoading({ title: '获取支付凭证...', mask: true })
        openId = await app.getOpenId()
        
        if (!openId) {
          // openId获取失败，但已登录用户可以使用用户ID替代
          if (app.globalData.isLoggedIn && app.globalData.userInfo?.id) {
            console.log('[Pay] 使用用户ID作为替代')
            openId = app.globalData.userInfo.id
          } else {
            wx.hideLoading()
            wx.showModal({
              title: '提示',
              content: '需要登录后才能支付，请先登录',
              showCancel: false
            })
            this.setData({ showLoginModal: true, isPaying: false })
            return
          }
        }
      }
      
      console.log('[Pay] 开始创建订单:', { type, sectionId, amount, openId: openId.slice(0, 10) + '...' })
      wx.showLoading({ title: '创建订单中...', mask: true })
      
      // 2. 调用后端创建预支付订单
      let paymentData = null
      
      try {
        // 获取章节完整名称用于支付描述
        const sectionTitle = this.data.section?.title || sectionId
        const description = type === 'fullbook' 
          ? '《一场Soul的创业实验》全书' 
          : `章节${sectionId}-${sectionTitle.length > 20 ? sectionTitle.slice(0, 20) + '...' : sectionTitle}`
        
        // 邀请码：谁邀请了我（从落地页 ref 或 storage 带入），会写入订单 referrer_id / referral_code 便于分销与对账
        const referralCode = wx.getStorageSync('referral_code') || ''
        const res = await app.request('/api/miniprogram/pay', {
          method: 'POST',
          data: {
            openId,
            productType: type,
            productId: sectionId,
            amount,
            description,
            userId: app.globalData.userInfo?.id || '',
            referralCode: referralCode || undefined
          }
        })
        
        console.log('[Pay] 创建订单响应:', res)
        
        if (res.success && res.data?.payParams) {
          paymentData = res.data.payParams
          paymentData._orderSn = res.data.orderSn // 保存订单号，支付成功后用于主动同步
          console.log('[Pay] 获取支付参数成功:', paymentData)
        } else {
          throw new Error(res.error || res.message || '创建订单失败')
        }
      } catch (apiError) {
        console.error('[Pay] API创建订单失败:', apiError)
        wx.hideLoading()
        // 支付接口失败时，显示客服联系方式
        wx.showModal({
          title: '支付通道维护中',
          content: '微信支付正在审核中，请添加客服微信（28533368）手动购买，感谢理解！',
          confirmText: '复制微信号',
          cancelText: '稍后再说',
          success: (res) => {
            if (res.confirm) {
              wx.setClipboardData({
                data: '28533368',
                success: () => {
                  wx.showToast({ title: '微信号已复制', icon: 'success' })
                }
              })
            }
          }
        })
        this.setData({ isPaying: false })
        return
      }
      
      // 3. 调用微信支付
      wx.hideLoading()
      console.log('[Pay] 调起微信支付, paymentData:', paymentData)
      
      try {
        await this.callWechatPay(paymentData)
        
        // 4. 【关键】主动向微信查询订单状态并同步到本地（不依赖回调，解决订单一直 created 的问题）
        const orderSn = paymentData._orderSn || paymentData.orderSn
        if (orderSn) {
          try {
            await app.request(`/api/miniprogram/pay?orderSn=${encodeURIComponent(orderSn)}`, { silent: true })
            console.log('[Pay] 已主动同步订单状态:', orderSn)
          } catch (e) {
            console.warn('[Pay] 主动同步订单失败，继续刷新购买状态:', e)
          }
        }
        
        // 5. 【标准流程】刷新权限并解锁内容
        console.log('[Pay] 微信支付成功!')
        await this.onPaymentSuccess()
        
      } catch (payErr) {
        console.error('[Pay] 微信支付调起失败:', payErr)
        if (payErr.errMsg && payErr.errMsg.includes('cancel')) {
          wx.showToast({ title: '已取消支付', icon: 'none' })
        } else if (payErr.errMsg && payErr.errMsg.includes('requestPayment:fail')) {
          // 支付失败，可能是参数错误或权限问题
          wx.showModal({
            title: '支付失败',
            content: '微信支付暂不可用，请添加客服微信（28533368）手动购买',
            confirmText: '复制微信号',
            cancelText: '取消',
            success: (res) => {
              if (res.confirm) {
                wx.setClipboardData({
                  data: '28533368',
                  success: () => wx.showToast({ title: '微信号已复制', icon: 'success' })
                })
              }
            }
          })
        } else {
          wx.showToast({ title: payErr.errMsg || '支付失败', icon: 'none' })
        }
      }
      
    } catch (e) {
      console.error('[Pay] 支付流程异常:', e)
      wx.hideLoading()
      wx.showToast({ title: '支付出错，请重试', icon: 'none' })
    } finally {
      this.setData({ isPaying: false })
    }
  },

  // 【新增】支付成功后的标准处理流程
  async onPaymentSuccess() {
    wx.showLoading({ title: '确认购买中...', mask: true })
    
    try {
      // 1. 等待服务端处理支付回调（1-2秒）
      await this.sleep(2000)
      
      // 2. 刷新用户购买状态
      await accessManager.refreshUserPurchaseStatus()
      
      // 3. 重新拉取章节并判断权限（应为 unlocked_purchased）
      const chapterRes = await app.request({
        url: this._getChapterUrl({}),
        silent: true
      })
      let newAccessState = await accessManager.determineAccessState(
        this.data.sectionId,
        chapterRes
      )
      
      if (newAccessState !== 'unlocked_purchased') {
        console.log('[Pay] 权限未生效，1秒后重试...')
        await this.sleep(1000)
        newAccessState = await accessManager.determineAccessState(
          this.data.sectionId,
          chapterRes
        )
      }
      
      const canAccess = accessManager.canAccessFullContent(newAccessState)
      
      this.setData({
        accessState: newAccessState,
        canAccess,
        showPaywall: !canAccess
      })
      
      // 4. 重新加载全文
      await this.loadContent(this.data.sectionId, newAccessState, chapterRes)
      
      // 5. 初始化阅读追踪
      if (canAccess) {
        readingTracker.init(this.data.sectionId)
      }
      
      wx.hideLoading()
      wx.showToast({ title: '购买成功', icon: 'success' })
      
    } catch (e) {
      wx.hideLoading()
      console.error('[Pay] 支付后更新失败:', e)
      wx.showModal({
        title: '提示',
        content: '购买成功，但内容加载失败，请返回重新进入',
        showCancel: false
      })
    }
  },

  // ✅ 刷新用户购买状态（从服务器获取最新数据）
  async refreshUserPurchaseStatus() {
    try {
      const userId = app.globalData.userInfo?.id
      if (!userId) {
        console.warn('[Pay] 用户未登录，无法刷新购买状态')
        return
      }

      // 调用专门的购买状态查询接口
      const res = await app.request(`/api/miniprogram/user/purchase-status?userId=${userId}`)

      if (res.success && res.data) {
        // 更新全局购买状态
        app.globalData.hasFullBook = res.data.hasFullBook
        app.globalData.purchasedSections = res.data.purchasedSections || []
        
        // 更新用户信息中的购买记录
        const userInfo = app.globalData.userInfo || {}
        userInfo.hasFullBook = res.data.hasFullBook
        userInfo.purchasedSections = res.data.purchasedSections || []
        app.globalData.userInfo = userInfo
        wx.setStorageSync('userInfo', userInfo)
        
        console.log('[Pay] ✅ 购买状态已刷新:', {
          hasFullBook: res.data.hasFullBook,
          purchasedCount: res.data.purchasedSections.length
        })
      }
    } catch (e) {
      console.error('[Pay] 刷新购买状态失败:', e)
      // 刷新失败时不影响用户体验，只是记录日志
    }
  },

  // 调用微信支付
  callWechatPay(paymentData) {
    return new Promise((resolve, reject) => {
      wx.requestPayment({
        timeStamp: paymentData.timeStamp,
        nonceStr: paymentData.nonceStr,
        package: paymentData.package,
        signType: paymentData.signType || 'MD5',
        paySign: paymentData.paySign,
        success: resolve,
        fail: reject
      })
    })
  },

  // 跳转到上一篇
  goToPrev() {
    if (this.data.prevSection) {
      const { id, mid } = this.data.prevSection
      const query = mid ? `mid=${mid}` : `id=${id}`
      wx.redirectTo({ url: `/pages/read/read?${query}` })
    }
  },

  // 跳转到下一篇
  goToNext() {
    if (this.data.nextSection) {
      const { id, mid } = this.data.nextSection
      const query = mid ? `mid=${mid}` : `id=${id}`
      wx.redirectTo({ url: `/pages/read/read?${query}` })
    }
  },

  // 跳转到推广中心
  goToReferral() {
    wx.navigateTo({ url: '/pages/referral/referral' })
  },

  // 生成海报
  async generatePoster() {
    wx.showLoading({ title: '生成中...' })
    this.setData({ showPosterModal: true, isGeneratingPoster: true })
    
    try {
      const ctx = wx.createCanvasContext('posterCanvas', this)
      const { section, contentParagraphs, sectionId, sectionMid } = this.data
      const userInfo = app.globalData.userInfo
      const userId = userInfo?.id || ''
      
      // 获取小程序码（带推荐人参数，优先 mid 与新链接一致）
      let qrcodeImage = null
      try {
        const q = sectionMid ? `mid=${sectionMid}` : `id=${sectionId}`
        const scene = userId ? `${q}&ref=${userId.slice(0,10)}` : q
        const qrRes = await app.request('/api/miniprogram/qrcode', {
          method: 'POST',
          data: { scene, page: 'pages/read/read', width: 280 }
        })
        if (qrRes.success && qrRes.image) {
          qrcodeImage = qrRes.image
        }
      } catch (e) {
        console.log('[Poster] 获取小程序码失败，使用占位符')
      }
      
      // 海报尺寸 300x450
      const width = 300
      const height = 450
      
      // 背景渐变
      const grd = ctx.createLinearGradient(0, 0, 0, height)
      grd.addColorStop(0, '#1a1a2e')
      grd.addColorStop(1, '#16213e')
      ctx.setFillStyle(grd)
      ctx.fillRect(0, 0, width, height)
      
      // 顶部装饰条
      ctx.setFillStyle('#00CED1')
      ctx.fillRect(0, 0, width, 4)
      
      // 标题区域
      ctx.setFillStyle('#ffffff')
      ctx.setFontSize(14)
      ctx.fillText('📚 Soul创业派对', 20, 35)
      
      // 章节标题
      ctx.setFontSize(18)
      ctx.setFillStyle('#ffffff')
      const title = section?.title || '精彩内容'
      const titleLines = this.wrapText(ctx, title, width - 40, 18)
      let y = 70
      titleLines.forEach(line => {
        ctx.fillText(line, 20, y)
        y += 26
      })
      
      // 分隔线
      ctx.setStrokeStyle('rgba(255,255,255,0.1)')
      ctx.beginPath()
      ctx.moveTo(20, y + 10)
      ctx.lineTo(width - 20, y + 10)
      ctx.stroke()
      
      // 内容摘要
      ctx.setFontSize(12)
      ctx.setFillStyle('rgba(255,255,255,0.8)')
      y += 30
      const summary = contentParagraphs.slice(0, 3).join(' ').slice(0, 150) + '...'
      const summaryLines = this.wrapText(ctx, summary, width - 40, 12)
      summaryLines.slice(0, 6).forEach(line => {
        ctx.fillText(line, 20, y)
        y += 20
      })
      
      // 底部区域背景
      ctx.setFillStyle('rgba(0,206,209,0.1)')
      ctx.fillRect(0, height - 100, width, 100)
      
      // 左侧提示文字
      ctx.setFillStyle('#ffffff')
      ctx.setFontSize(13)
      ctx.fillText('长按识别小程序码', 20, height - 60)
      ctx.setFillStyle('rgba(255,255,255,0.6)')
      ctx.setFontSize(11)
      ctx.fillText('长按小程序码阅读全文', 20, height - 38)
      
      // 绘制小程序码或占位符
      const drawQRCode = () => {
        return new Promise((resolve) => {
          if (qrcodeImage) {
            // 下载base64图片并绘制
            const fs = wx.getFileSystemManager()
            const filePath = `${wx.env.USER_DATA_PATH}/qrcode_${Date.now()}.png`
            const base64Data = qrcodeImage.replace(/^data:image\/\w+;base64,/, '')
            
            fs.writeFile({
              filePath,
              data: base64Data,
              encoding: 'base64',
              success: () => {
                ctx.drawImage(filePath, width - 85, height - 85, 70, 70)
                resolve()
              },
              fail: () => {
                this.drawQRPlaceholder(ctx, width, height)
                resolve()
              }
            })
          } else {
            this.drawQRPlaceholder(ctx, width, height)
            resolve()
          }
        })
      }
      
      await drawQRCode()
      
      ctx.draw(true, () => {
        wx.hideLoading()
        this.setData({ isGeneratingPoster: false })
      })
    } catch (e) {
      console.error('生成海报失败:', e)
      wx.hideLoading()
      wx.showToast({ title: '生成失败', icon: 'none' })
      this.setData({ showPosterModal: false, isGeneratingPoster: false })
    }
  },
  
  // 绘制小程序码占位符
  drawQRPlaceholder(ctx, width, height) {
    ctx.setFillStyle('#ffffff')
    ctx.beginPath()
    ctx.arc(width - 50, height - 50, 35, 0, Math.PI * 2)
    ctx.fill()
    ctx.setFillStyle('#00CED1')
    ctx.setFontSize(9)
    ctx.fillText('扫码', width - 57, height - 52)
    ctx.fillText('阅读', width - 57, height - 40)
  },
  
  // 文字换行处理
  wrapText(ctx, text, maxWidth, fontSize) {
    const lines = []
    let line = ''
    for (let i = 0; i < text.length; i++) {
      const testLine = line + text[i]
      const metrics = ctx.measureText(testLine)
      if (metrics.width > maxWidth && line) {
        lines.push(line)
        line = text[i]
      } else {
        line = testLine
      }
    }
    if (line) lines.push(line)
    return lines
  },
  
  // 关闭海报弹窗
  closePosterModal() {
    this.setData({ showPosterModal: false })
  },
  
  // 保存海报到相册
  savePoster() {
    wx.canvasToTempFilePath({
      canvasId: 'posterCanvas',
      success: (res) => {
        wx.saveImageToPhotosAlbum({
          filePath: res.tempFilePath,
          success: () => {
            wx.showToast({ title: '已保存到相册', icon: 'success' })
            this.setData({ showPosterModal: false })
          },
          fail: (err) => {
            if (err.errMsg.includes('auth deny')) {
              wx.showModal({
                title: '提示',
                content: '需要相册权限才能保存海报',
                confirmText: '去设置',
                success: (res) => {
                  if (res.confirm) {
                    wx.openSetting()
                  }
                }
              })
            } else {
              wx.showToast({ title: '保存失败', icon: 'none' })
            }
          }
        })
      },
      fail: () => {
        wx.showToast({ title: '生成图片失败', icon: 'none' })
      }
    }, this)
  },

  // 阻止冒泡
  stopPropagation() {},

  // 【新增】页面隐藏时上报阅读进度
  onHide() {
    readingTracker.onPageHide()
  },

  // 【新增】页面卸载时清理追踪器
  onUnload() {
    readingTracker.cleanup()
  },

  // 【新增】重试加载（当 accessState 为 error 时）
  async handleRetry() {
    wx.showLoading({ title: '重试中...', mask: true })
    
    try {
      const config = await accessManager.fetchLatestConfig()
      this.setData({
        sectionPrice: config.prices?.section ?? 1,
        fullBookPrice: config.prices?.fullbook ?? 9.9
      })
      
      // 重新拉取章节，用 isFree/price 判断免费
      const chapterRes = await app.request({
        url: this._getChapterUrl({}),
        silent: true
      })
      const newAccessState = await accessManager.determineAccessState(
        this.data.sectionId,
        chapterRes
      )
      const canAccess = accessManager.canAccessFullContent(newAccessState)
      
      this.setData({
        accessState: newAccessState,
        canAccess,
        showPaywall: !canAccess
      })
      
      await this.loadContent(this.data.sectionId, newAccessState, chapterRes)
      
      // 如果有权限，初始化阅读追踪
      if (canAccess) {
        readingTracker.init(this.data.sectionId)
      }
      
      this._applyPrevNext(chapterRes)
      
      wx.hideLoading()
      wx.showToast({ title: '加载成功', icon: 'success' })
      
    } catch (e) {
      wx.hideLoading()
      console.error('[Read] 重试失败:', e)
      wx.showToast({ title: '重试失败，请检查网络', icon: 'none' })
    }
  },

  // 工具：延迟
  sleep(ms) {
    return new Promise(resolve => setTimeout(resolve, ms))
  }
})