/**
 * 卡若创业派对 - 代付领取详情（发起人查看：文章信息、领取人明细、剩余份数）
 */
const app = getApp()

Page({
  data: {
    statusBarHeight: 44,
    requestSn: '',
    detail: null,
    loading: true,
    remaining: 0
  },

  onLoad(options) {
    this.setData({ statusBarHeight: app.globalData.statusBarHeight || 44 })
    const requestSn = (options.requestSn || '').trim()
    if (!requestSn) {
      wx.showToast({ title: '链接无效', icon: 'none' })
      setTimeout(() => wx.navigateBack(), 1500)
      return
    }
    this.setData({ requestSn })
    this.loadDetail()
  },

  async loadDetail() {
    const { requestSn } = this.data
    const userId = app.globalData.userInfo?.id || ''
    if (!userId) {
      this.setData({ loading: false })
      wx.showToast({ title: '请先登录', icon: 'none' })
      return
    }
    this.setData({ loading: true })
    try {
      const res = await app.request(
        `/api/miniprogram/gift-pay/detail?requestSn=${encodeURIComponent(requestSn)}&userId=${encodeURIComponent(userId)}`
      )
      if (res && res.success) {
        const q = res.quantity || 0
        const redeemed = res.redeemedCount || 0
        const remaining = Math.max(0, q - redeemed)
        this.setData({
          detail: res,
          remaining,
          loading: false
        })
      } else {
        this.setData({ loading: false })
        wx.showToast({ title: res?.error || '加载失败', icon: 'none' })
      }
    } catch (e) {
      this.setData({ loading: false })
      wx.showToast({ title: '加载失败', icon: 'none' })
    }
  },

  goToDetail() {
    const { requestSn } = this.data
    if (requestSn) {
      wx.navigateTo({ url: `/pages/gift-pay/detail?requestSn=${encodeURIComponent(requestSn)}` })
    }
  },

  goToArticle() {
    const { detail } = this.data
    if (!detail) return
    const mid = detail.productMid || 0
    const id = detail.productId || ''
    if (detail.productType === 'section' && (mid || id)) {
      const q = mid ? `mid=${mid}` : `id=${id}`
      wx.navigateTo({ url: `/pages/read/read?${q}` })
    }
  },

  goBack() {
    app.goBackOrToHome()
  }
})