const request = require('../../utils/request')
const { getCustomerServiceWechat } = require('../../utils/constants')

const HOME_CACHE_KEY = 'home_cache_v1'
const HOME_CACHE_TTL = 2 * 60 * 1000

Page({
  data: {
    activities: [],
    announcements: [],
    members: [],
    heroAnnouncementText: '暂无公告',
    heroAnnouncementId: null,
    activeMember: null,
    activeMemberTagsText: '',
    featuredMembers: [],
    customerServiceWechat: getCustomerServiceWechat(),
    loadingHome: false
  },

  onShow() {
    const app = getApp()
    this.setData({ customerServiceWechat: app.globalData.customerServiceWechat || getCustomerServiceWechat() })
    this.loadHomeData(true)
  },

  getCachedHomeData() {
    const cache = wx.getStorageSync(HOME_CACHE_KEY)
    if (!cache || !cache.ts || Date.now() - cache.ts > HOME_CACHE_TTL) {
      return null
    }
    return cache.data || null
  },

  saveCachedHomeData(data) {
    wx.setStorageSync(HOME_CACHE_KEY, { ts: Date.now(), data })
  },

  applyHomeData(homeData) {
    const { activities = [], announcements = [], members = [] } = homeData || {}
    this.setData({
      activities,
      announcements,
      members,
      featuredMembers: members.slice(0, 3),
      heroAnnouncementText: announcements.length ? announcements[0].title : '暂无公告',
      heroAnnouncementId: announcements.length ? announcements[0].id : null
    })
  },

  async loadHomeData(silent = false) {
    const cached = this.getCachedHomeData()
    if (cached) {
      this.applyHomeData(cached)
      if (silent) {
        return
      }
    }

    if (this.data.loadingHome) {
      return
    }

    this.setData({ loadingHome: true })
    try {
      const [activities, announcements, members] = await Promise.all([
        request({ url: '/activities?status=1&page_size=5' }),
        request({ url: '/announcements?page_size=3' }),
        request({ url: '/matches/candidates?source=manual' })
      ])
      const safeActivities = Array.isArray(activities) ? activities : []
      const safeAnnouncements = Array.isArray(announcements) ? announcements : []
      const safeMembers = Array.isArray(members) ? members : []
      const nextData = {
        activities: safeActivities.map((item) => ({
          ...item,
          remainText: this.getRemainText(item)
        })),
        announcements: safeAnnouncements,
        members: safeMembers.slice(0, 6).map((item) => ({
          ...item,
          nicknameText: item.nickname || '匿名用户',
          cityText: item.city || '城市未知',
          personalityTagsText: (Array.isArray(item.personality_tags) ? item.personality_tags : []).slice(0, 3).join(' / ') || '性格待完善',
          introText: item.self_intro || '对方还没有填写更多公开信息',
          birthYearRangeText: item.birth_year_range || '年龄未知'
        }))
      }
      this.applyHomeData(nextData)
      this.saveCachedHomeData(nextData)
    } catch (err) {
      console.error('Load home data failed:', err)
      if (!cached) {
        wx.showToast({ title: '首页内容加载失败', icon: 'none' })
      }
    } finally {
      this.setData({ loadingHome: false })
    }
  },

  getRemainText(item) {
    const maleRemain = Math.max((item.capacity_male || 0) - (item.registered_male || 0), 0)
    const femaleRemain = Math.max((item.capacity_female || 0) - (item.registered_female || 0), 0)
    return `还剩 ${maleRemain + femaleRemain} 个名额`
  },

  goActivityDetail(e) {
    wx.navigateTo({ url: `/pages/activity-detail/activity-detail?id=${e.currentTarget.dataset.id}` })
  },

  goAnnouncement(e) {
    wx.navigateTo({ url: '/pages/announcement/announcement' })
  },

  goHeroAnnouncement() {
    wx.navigateTo({ url: '/pages/announcement/announcement' })
  },

  openMemberCard(e) {
    const userId = e.currentTarget.dataset.id
    const activeMember = this.data.members.find((item) => item.user_id === userId) || null
    this.setData({
      activeMember,
      activeMemberTagsText: activeMember && activeMember.personality_tags ? activeMember.personality_tags.join(' / ') : ''
    })
  },

  closeMemberCard() {
    this.setData({ activeMember: null, activeMemberTagsText: '' })
  },

  noop() {},

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

  goActivity() {
    wx.switchTab({ url: '/pages/activity/activity' })
  },

  goAnnouncementList() {
    wx.navigateTo({ url: '/pages/announcement/announcement' })
  },

  goMessageBoard() {
    wx.showModal({
      title: '联系客服',
      content: `客服微信号：${this.data.customerServiceWechat || '暂未设置'}`,
      showCancel: false,
      confirmText: '我知道了'
    })
  }
})