/**
 * 卡若创业派对 - 首页
 * 开发: 卡若
 * 技术支持: 存客宝
 */

const app = getApp()
const { trackClick } = require('../../utils/trackClick')
const { cleanSingleLineField } = require('../../utils/contentParser')
const { navigateMpPath } = require('../../utils/mpNavigate.js')
const { isSafeImageSrc } = require('../../utils/imageUrl.js')
const { submitCkbLead } = require('../../utils/soulBridge')

/** 置顶人物无头像时的占位图 */
const DEFAULT_KARUO_LINK_AVATAR = '/assets/images/karuo-link-avatar.png'

/** 与首页固定「卡若」获客位重复时从横滑列表剔除（含历史误写「卡路」） */
function isKaruoHostDuplicateName(displayName) {
  const s = String(displayName || '').trim()
  return s === '卡若' || s === '卡路'
}

/** 超级个体无头像占位：仅展示中文首字，避免头像圆里出现英文字母 */
function superAvatarLetter(displayName) {
  const s = String(displayName || '').trim()
  if (!s) return '会'
  const ch = s[0]
  return /[\u4e00-\u9fff]/.test(ch) ? ch : '会'
}

Page({
  data: {
    // 系统信息
    statusBarHeight: 44,
    navBarHeight: 88,
    
    // 用户信息
    isLoggedIn: false,
    hasFullBook: false,
    readCount: 0,
    
    // 书籍数据（totalSections 来自 book/parts，初始用 app.getTotalSections() 兜底）
    totalSections: 0,  // onLoad 后由 loadBookData 更新
    bookData: [],
    
    // 推荐章节（来自 recommended/hot API，初始为空避免占位错误）
    featuredSections: [],
    
    // Banner 推荐（优先用 recommended API 第一条，回退 latest-chapters）
    bannerSection: null,
    latestLabel: '最新更新',
    
    // 内容概览
    partsList: [
      { id: 'part-1', number: '一', title: '真实的人', subtitle: '人与人之间的底层逻辑' },
      { id: 'part-2', number: '二', title: '真实的行业', subtitle: '电商、内容、传统行业解析' },
      { id: 'part-3', number: '三', title: '真实的错误', subtitle: '我和别人犯过的错' },
      { id: 'part-4', number: '四', title: '真实的赚钱', subtitle: '底层结构与真实案例' },
      { id: 'part-5', number: '五', title: '真实的社会', subtitle: '未来职业与商业生态' }
    ],
    
    // 超级个体（VIP会员）
    superMembers: [],
    superMembersLoading: true,

    // 最新新增章节（完整列表 + 展示列表，用于展开/折叠）
    latestChapters: [],
    displayLatestChapters: [],
    
    // 篇章数（从 bookData 计算）
    partCount: 0,
    
    // 加载状态
    loading: true,

    // 展开状态（首页精选/最新）
    featuredExpanded: false,
    latestExpanded: false,
    featuredSectionsFull: [], // 精选排行榜全量（最多 50），默认只展示前 3 条

    // 功能配置（搜索开关）
    searchEnabled: true,

    // 审核模式：隐藏支付相关入口
    auditMode: false,

    // mp_config.mpUi.homePage（后台系统设置 mpUi）
    mpUiLogoTitle: '卡若创业派对',
    mpUiLogoSubtitle: '来自派对房的真实故事',
    /** 仅当有置顶 @人物时展示，文案与头像由 _applyHomeMpUi 写入 */
    mpUiLinkKaruoText: '',
    mpUiLinkKaruoDisplay: DEFAULT_KARUO_LINK_AVATAR,
    mpUiSearchPlaceholder: '搜索章节标题或内容...',
    mpUiBannerTag: '推荐',
    mpUiBannerReadMore: '点击阅读',
    mpUiSuperTitle: '超级个体',
    mpUiPickTitle: '精选推荐',
    mpUiLatestTitle: '最新新增',

    /** 后台 @列表置顶人物：有则右上角展示绑定用户头像 + @名称，点击走 ckb/lead */
    homePinnedPerson: null,
  },

  onLoad(options) {
    console.log('[Index] ===== onLoad 触发 =====')
    
    // 获取系统信息
    this.setData({
      statusBarHeight: app.globalData.statusBarHeight,
      navBarHeight: app.globalData.navBarHeight
    })
    
    // 处理分享参数（推荐码绑定）
    if (options && options.ref) {
      console.log('[Index] 检测到推荐码:', options.ref)
      app.handleReferralCode({ query: options })
    }
    
    wx.showShareMenu({ withShareTimeline: true })
    this.loadFeatureConfig()
    this.initData()
  },

  onShow() {
    console.log('[Index] onShow 触发')
    this.setData({ auditMode: app.globalData.auditMode || false })
    void this.loadHomePinnedPerson()
    
    // 设置TabBar选中状态
    if (typeof this.getTabBar === 'function' && this.getTabBar()) {
      const tabBar = this.getTabBar()
      console.log('[Index] TabBar 组件:', tabBar ? '已找到' : '未找到')
      
      // 主动触发配置加载
      if (tabBar && tabBar.loadFeatureConfig) {
        console.log('[Index] 主动调用 TabBar.loadFeatureConfig()')
        tabBar.loadFeatureConfig()
      }
      
      // 更新选中状态
      if (tabBar && tabBar.updateSelected) {
        tabBar.updateSelected()
      } else if (tabBar) {
        tabBar.setData({ selected: 0 })
      }
    } else {
      console.log('[Index] TabBar 组件未找到或 getTabBar 方法不存在')
    }
    
    // 更新用户状态
    this.updateUserStatus()
  },

  // 初始化数据：首次进页面并行异步加载，加快首屏展示
  initData() {
    this.setData({ loading: false })
    this.loadBookData()
    this.loadFeaturedAndLatest()
    this.loadSuperMembers()
  },

  async loadSuperMembers() {
    this.setData({ superMembersLoading: true })
    try {
      // 仅走后端 VIP 列表排序（vip_sort、vip_activated_at），不在端上拼普通用户
      const vipRes = await app.request({ url: '/api/miniprogram/vip/members?limit=24', silent: true }).catch(() => null)
      let members = []
      if (vipRes && vipRes.success && Array.isArray(vipRes.data) && vipRes.data.length > 0) {
        members = vipRes.data.map(u => {
          const raw = u.name || u.nickname || u.vipName || u.vip_name || '会员'
          const name = cleanSingleLineField(raw) || '会员'
          return {
            id: u.id,
            name,
            avatar: u.avatar || '',
            isVip: true,
            avatarLetter: superAvatarLetter(name)
          }
        }).filter((m) => !isKaruoHostDuplicateName(m.name))
        console.log('[Index] 超级个体（后端排序）:', members.length, '人')
      }
      this.setData({ superMembers: members, superMembersLoading: false })
    } catch (e) {
      console.log('[Index] 加载超级个体失败:', e)
      this.setData({ superMembersLoading: false })
    }
  },

  // 精选推荐 + 最新更新 + 最新列表：顺序以后端为准（recommended=排行榜算法，latest=updated_at）
  async loadFeaturedAndLatest() {
    try {
      const tagClassForTag = (tag) => (tag === '热门' ? 'tag-hot' : 'tag-rec')
      const toSectionFromRanking = (s) => {
        const tag = s.tag || '精选'
        return {
          id: s.id || s.section_id,
          mid: s.mid ?? s.MID ?? 0,
          title: s.section_title || s.sectionTitle || s.title || s.chapterTitle || '',
          part: (s.part_title || s.partTitle || '').replace(/[_｜|]/g, ' ').trim(),
          tag,
          tagClass: tagClassForTag(tag)
        }
      }
      const fallbackTags = ['热门', '推荐', '精选']
      const toSectionFromHot = (s, i) => {
        const tag = fallbackTags[i % 3]
        return {
          id: s.id || s.section_id,
          mid: s.mid ?? s.MID ?? 0,
          title: s.section_title || s.sectionTitle || s.title || s.chapterTitle || '',
          part: (s.part_title || s.partTitle || '').replace(/[_｜|]/g, ' ').trim(),
          tag,
          tagClass: tagClassForTag(tag)
        }
      }

      const [recRes, latestRes] = await Promise.all([
        app.request({ url: '/api/miniprogram/book/recommended?limit=50', silent: true }).catch(() => null),
        app.request({ url: '/api/miniprogram/book/latest-chapters', silent: true }).catch(() => null)
      ])

      // 1. 精选推荐：一次拉全量（≤50），默认只显示 3 条；点列表下三角展开（与「最新新增」一致）
      let featuredFull = []
      if (recRes && recRes.success && Array.isArray(recRes.data) && recRes.data.length > 0) {
        featuredFull = recRes.data.map((s) => toSectionFromRanking(s))
      }
      if (featuredFull.length === 0) {
        try {
          const hotRes = await app.request({ url: '/api/miniprogram/book/hot?limit=50', silent: true })
          const hotList = (hotRes && hotRes.data) ? hotRes.data : []
          if (hotList.length > 0) featuredFull = hotList.map((s, i) => toSectionFromHot(s, i))
        } catch (e) { console.log('[Index] book/hot 兜底失败:', e) }
      }
      if (featuredFull.length > 0) {
        this.setData({
          featuredSectionsFull: featuredFull,
          featuredSections: featuredFull.slice(0, 3),
          featuredExpanded: false
        })
      } else {
        this.setData({
          featuredSectionsFull: [],
          featuredSections: [],
          featuredExpanded: false
        })
      }

      // 2. Banner 推荐：优先取 recommended 第一条，回退 latest 第一条
      const rawList = (latestRes && latestRes.data) ? latestRes.data : []
      // 按更新时间倒序，最新在前（与后台展示一致）
      const latestList = [...rawList].sort((a, b) => {
        const ta = new Date(a.updatedAt || a.updated_at || 0).getTime()
        const tb = new Date(b.updatedAt || b.updated_at || 0).getTime()
        return tb - ta
      })
      if (featuredFull.length > 0) {
        this.setData({ bannerSection: featuredFull[0] })
      } else if (latestList.length > 0) {
        const l = latestList[0]
        this.setData({
          bannerSection: {
            id: l.id,
            mid: l.mid ?? l.MID ?? 0,
            title: l.section_title || l.sectionTitle || l.title || l.chapterTitle || '',
            part: l.part_title || l.partTitle || ''
          }
        })
      }
      const latestChapters = latestList.slice(0, 20).map(c => {
        const d = new Date(c.updatedAt || c.updated_at || Date.now())
        const title = c.section_title || c.sectionTitle || c.title || c.chapterTitle || ''
        return {
          id: c.id,
          mid: c.mid ?? c.MID ?? 0,
          title,
          desc: '',
          price: c.price ?? 1,
          dateStr: `${d.getMonth() + 1}/${d.getDate()}`
        }
      })
      const display = this.data.latestExpanded ? latestChapters : latestChapters.slice(0, 5)
      this.setData({ latestChapters, displayLatestChapters: display })
    } catch (e) {
      console.log('[Index] 从服务端加载推荐失败:', e)
    }
  },

  async loadBookData() {
    try {
      const res = await app.request({ url: '/api/miniprogram/book/parts', silent: true })
      if (res?.success) {
        const total = res.totalSections ?? 0
        const parts = res.parts || []
        app.globalData.totalSections = (total != null && total > 0) ? total : app.getTotalSections()
        this.setData({
          totalSections: app.globalData.totalSections,
          partCount: parts.length || 5
        })
      }
    } catch (e) {
      this.setData({ totalSections: app.getTotalSections(), partCount: 5 })
    }
  },

  // 更新用户状态（已读数 = 用户实际打开过的章节数，仅统计有权限阅读的）
  updateUserStatus() {
    const { isLoggedIn, hasFullBook, purchasedSections } = app.globalData
    const readCount = Math.min(app.getReadCount(), this.data.totalSections || app.getTotalSections())
    this.setData({
      isLoggedIn,
      hasFullBook,
      readCount
    })
  },

  // 跳转到目录
  goToChapters() {
    trackClick('home', 'nav_click', '阅读进度')
    wx.switchTab({ url: '/pages/chapters/chapters' })
  },

  _applyHomeMpUi() {
    const h = app.globalData.configCache?.mpConfig?.mpUi?.homePage || {}
    const baseTitle = String(h.logoTitle || '卡若创业派对').trim() || '卡若创业派对'
    const prefix = String(h.pinnedTitlePrefix != null ? h.pinnedTitlePrefix : '派对会员').trim()
    const tpl = String(h.pinnedMainTitleTemplate || '').trim()
    const patch = {
      mpUiLogoTitle: baseTitle,
      mpUiLogoSubtitle: String(h.logoSubtitle || '来自派对房的真实故事').trim() || '来自派对房的真实故事',
      mpUiSearchPlaceholder: String(h.searchPlaceholder || '搜索章节标题或内容...').trim() || '搜索章节标题或内容...',
      mpUiBannerTag: String(h.bannerTag || '推荐').trim() || '推荐',
      mpUiBannerReadMore: String(h.bannerReadMoreText || '点击阅读').trim() || '点击阅读',
      mpUiSuperTitle: String(h.superSectionTitle || '超级个体').trim() || '超级个体',
      mpUiPickTitle: String(h.pickSectionTitle || '精选推荐').trim() || '精选推荐',
      mpUiLatestTitle: String(h.latestSectionTitle || '最新新增').trim() || '最新新增',
    }
    const pinned = this.data.homePinnedPerson
    if (pinned && pinned.token) {
      const displayAv =
        pinned.avatar && isSafeImageSrc(pinned.avatar) ? pinned.avatar : DEFAULT_KARUO_LINK_AVATAR
      const nm = pinned.name || '好友'
      patch.mpUiLinkKaruoText = `点击链接${nm}`
      patch.mpUiLinkKaruoDisplay = displayAv
      let mainTitle = baseTitle
      if (tpl) {
        mainTitle = tpl
          .replace(/\{\{name\}\}/g, nm)
          .replace(/\{\{prefix\}\}/g, prefix)
          .trim() || baseTitle
      } else if (prefix) {
        mainTitle = `${prefix} · ${nm}`
      } else {
        mainTitle = `@${nm}`
      }
      patch.mpUiLogoTitle = mainTitle
    } else {
      patch.mpUiLinkKaruoText = ''
      patch.mpUiLinkKaruoDisplay = DEFAULT_KARUO_LINK_AVATAR
    }
    this.setData(patch)
    try {
      wx.setNavigationBarTitle({ title: patch.mpUiLogoTitle || '首页' })
    } catch (_) {}
  },

  /** 拉取后台置顶 @人物，合并到首页右上角「链接」区 */
  async loadHomePinnedPerson() {
    try {
      const res = await app.request({ url: '/api/miniprogram/ckb/pinned-person', silent: true })
      if (res && res.success && res.data && res.data.token) {
        const name = cleanSingleLineField(res.data.name) || '好友'
        let av = String(res.data.avatar || '').trim()
        if (!isSafeImageSrc(av)) av = ''
        this.setData({
          homePinnedPerson: {
            token: String(res.data.token).trim(),
            name,
            avatar: av,
          },
        })
      } else {
        this.setData({ homePinnedPerson: null })
      }
    } catch (e) {
      console.log('[Index] pinned-person:', e)
      this.setData({ homePinnedPerson: null })
    }
    this._applyHomeMpUi()
  },

  async loadFeatureConfig() {
    try {
      const hasCachedFeatures = app.globalData.features && typeof app.globalData.features.searchEnabled === 'boolean'
      if (!hasCachedFeatures) {
        const res = await app.getConfig()
        const features = (res && res.features) || (res && res.data && res.data.features) || {}
        const searchEnabled = features.searchEnabled !== false
        if (!app.globalData.features) app.globalData.features = {}
        app.globalData.features.searchEnabled = searchEnabled
        if (typeof features.matchEnabled === 'boolean') app.globalData.features.matchEnabled = features.matchEnabled
        if (typeof features.referralEnabled === 'boolean') app.globalData.features.referralEnabled = features.referralEnabled
        const mp = (res && res.mpConfig) || {}
        app.globalData.auditMode = !!mp.auditMode
      }
      await app.getAuditMode()
      const searchEnabled = app.globalData.features?.searchEnabled !== false
      this.setData({
        searchEnabled,
        auditMode: app.globalData.auditMode || false
      })
      this._applyHomeMpUi()
    } catch (e) {
      try {
        await app.getAuditMode()
      } catch (_) {}
      this.setData({
        searchEnabled: app.globalData.features?.searchEnabled !== false,
        auditMode: app.globalData.auditMode || false
      })
      this._applyHomeMpUi()
    }
    await this.loadHomePinnedPerson()
  },

  // 跳转到搜索页
  goToSearch() {
    if (!this.data.searchEnabled) return
    trackClick('home', 'nav_click', '搜索')
    wx.navigateTo({ url: '/pages/search/search' })
  },

  // 跳转到阅读页（传 mid，与分享一致；无 mid 时传 id）
  goToRead(e) {
    const id = e.currentTarget.dataset.id
    const mid = e.currentTarget.dataset.mid
    trackClick('home', 'card_click', id || '章节')
    const q = mid ? `mid=${mid}` : `id=${id}`
    wx.navigateTo({ url: `/pages/read/read?${q}` })
  },

  // 跳转到匹配页
  goToMatch() {
    wx.switchTab({ url: '/pages/match/match' })
  },

  goToVip() {
    trackClick('home', 'btn_click', '加入创业派对')
    wx.navigateTo({ url: '/pages/vip/vip' })
  },

  async onLinkKaruo() {
    const pinned = this.data.homePinnedPerson
    if (!pinned || !pinned.token) return
    trackClick('home', 'btn_click', '置顶@人物留资')
    await submitCkbLead(getApp(), {
      targetUserId: pinned.token,
      targetNickname: pinned.name,
      source: 'home_pinned_person',
    })
  },

  goToSuperList() {
    wx.switchTab({ url: '/pages/match/match' })
  },

  // 精选推荐：列表下方小三角展开（数据已在 loadFeaturedAndLatest 一次拉齐）
  expandFeaturedChapters() {
    if (this.data.featuredExpanded) return
    const full = this.data.featuredSectionsFull || []
    if (full.length <= 3) return
    trackClick('home', 'tab_click', '精选展开_底部三角')
    this.setData({ featuredExpanded: true, featuredSections: full })
  },

  // 最新新增：列表下方小三角展开（无「收起」，展开后整页向下滚动查看）
  expandLatestChapters() {
    if (this.data.latestExpanded) return
    trackClick('home', 'tab_click', '最新展开_底部三角')
    const full = this.data.latestChapters || []
    this.setData({
      latestExpanded: true,
      displayLatestChapters: full
    })
  },

  goToMemberDetail(e) {
    const id = e.currentTarget.dataset.id
    trackClick('home', 'card_click', '超级个体_' + (id || ''))
    wx.navigateTo({ url: `/pages/member-detail/member-detail?id=${id}` })
  },

  // 跳转到我的页面
  goToMy() {
    wx.switchTab({ url: '/pages/my/my' })
  },

  // 下拉刷新（等待各异步加载完成后再结束）
  async onPullDownRefresh() {
    await Promise.all([
      this.loadBookData(),
      this.loadFeaturedAndLatest(),
      this.loadSuperMembers()
    ])
    this.updateUserStatus()
    wx.stopPullDownRefresh()
  },

  onShareAppMessage() {
    const ref = app.getMyReferralCode()
    return {
      title: '卡若创业派对 - 真实商业故事',
      path: ref ? `/pages/index/index?ref=${ref}` : '/pages/index/index'
    }
  },

  onShareTimeline() {
    const ref = app.getMyReferralCode()
    return { title: '卡若创业派对 - 真实商业故事', query: ref ? `ref=${ref}` : '' }
  }
})