const request = require('../../utils/request')

Page({
  data: {
    id: null,
    shareToken: '',
    activity: null,
    loading: false,
    submitting: false
  },

  onLoad(options) {
    this.setData({
      id: options.id ? Number(options.id) : null,
      shareToken: options.share_token || ''
    })
    this.loadDetail()
  },

  onShow() {
    const pendingBind = wx.getStorageSync('pending_activity_bind')
    if (pendingBind && Number(pendingBind.activity_id) === Number(this.data.id || 0)) {
      wx.removeStorageSync('pending_activity_bind')
      this.handleRegister()
      return
    }
    if (this.data.id || this.data.shareToken) {
      this.loadDetail()
    }
  },

  onShareAppMessage() {
    const activity = this.data.activity || {}
    const shareToken = activity.share_token || this.data.shareToken || ''
    return {
      title: activity.title || '邀请你参加这个活动',
      path: shareToken
        ? `/pages/activity-detail/activity-detail?share_token=${shareToken}`
        : `/pages/activity-detail/activity-detail?id=${this.data.id}`,
      imageUrl: activity.cover_image || ''
    }
  },

  normalizeActivity(activity) {
    const stageTextMap = {
      before_start: '活动未开始，暂不可查看嘉宾信息',
      matching_open: '活动已开始，可进入活动匹配',
      matching_closed: '匹配已截止，可查看选择结果',
      ended: '活动已结束'
    }
    return {
      ...activity,
      locationText: activity.location || '待定',
      signupDeadlineText: activity.signup_deadline || '未设置',
      matchDeadlineText: activity.match_deadline || '未设置',
      descriptionText: activity.description || '暂无活动详情',
      stageText: stageTextMap[activity.stage] || '活动状态待更新',
      actionText: activity.is_bound || activity.is_registered
        ? '已绑定'
        : activity.can_register
          ? '立即绑定'
          : '当前不可绑定',
      selectionSummaryText: `已选 ${activity.selected_count || 0}/${activity.selection_limit || 3}，剩余 ${activity.remaining_count || 0}`,
      registered_preview: Array.isArray(activity.registered_preview)
        ? activity.registered_preview.map((item) => ({
            ...item,
            nicknameText: item.nickname || '用户'
          }))
        : []
    }
  },

  async loadDetail() {
    this.setData({ loading: true })
    try {
      const activity = this.data.shareToken
        ? await request({ url: `/activities/share/${this.data.shareToken}` })
        : await request({ url: `/activities/${this.data.id}` })
      this.setData({
        id: activity.id || this.data.id,
        activity: this.normalizeActivity(activity)
      })
    } catch (err) {
      console.error('Load activity detail failed:', err)
      wx.showToast({ title: '活动详情加载失败', icon: 'none' })
      this.setData({ activity: null })
    } finally {
      this.setData({ loading: false })
    }
  },

  goActivityMatch() {
    if (!this.data.id || !this.data.activity || !this.data.activity.can_enter_match) {
      wx.showToast({ title: '当前阶段暂不可进入匹配', icon: 'none' })
      return
    }
    wx.navigateTo({ url: `/pages/match/match?source=activity&activity_id=${this.data.id}` })
  },

  goMatchResults() {
    if (!this.data.id) {
      return
    }
    wx.navigateTo({ url: `/pages/my-matches/my-matches?activity_id=${this.data.id}` })
  },

  async handleRegister() {
    if (!this.data.activity) {
      return
    }
    if (this.data.activity.is_bound || this.data.activity.is_registered) {
      wx.showToast({ title: '你已绑定该活动', icon: 'none' })
      return
    }
    if (!this.data.activity.can_register) {
      wx.showToast({ title: '当前不可绑定', icon: 'none' })
      return
    }

    this.setData({ submitting: true })
    try {
      await request({ url: `/activities/${this.data.id}/bind`, method: 'POST' })
      wx.showToast({ title: '绑定成功', icon: 'success' })
      await this.loadDetail()
    } catch (err) {
      console.error('Bind activity failed:', err)
      if (err && err.message && err.message.includes('资料')) {
        wx.setStorageSync('pending_activity_bind', {
          activity_id: this.data.id,
          share_token: this.data.shareToken || ''
        })
        wx.showModal({
          title: '请先完善资料',
          content: err.message,
          success: (res) => {
            if (res.confirm) {
              wx.navigateTo({ url: '/pages/profile-edit/profile-edit' })
            }
          }
        })
        return
      }
      wx.showToast({ title: err.message || '绑定失败', icon: 'none' })
    } finally {
      this.setData({ submitting: false })
    }
  }
})