// records.js
const { appointmentDB, formatRecord } = require('../../utils/cloud')
const app = getApp()

Page({
  data: {
    records: [],
    filteredRecords: [],
    currentTab: 'all',
    loading: true
  },

  onLoad() {
    this.loadRecords()
  },

  onShow() {
    // 仅从预约页返回时刷新，避免 onLoad + onShow 双重加载
    if (this.data._loaded) {
      this.loadRecords()
    }
  },

  async loadRecords() {
    this.setData({ loading: true })
    try {
      const openid = app.globalData.userInfo.openid
      const records = await appointmentDB.getList(openid)
      const formatted = records.map(item => formatRecord(item))
      this.setData({ records: formatted, loading: false, _loaded: true })
      this.filterRecords()
    } catch (err) {
      console.error('加载预约记录失败', err)
      this.setData({ records: [], loading: false, _loaded: true })
      this.filterRecords()
    }
  },

  switchTab(e) {
    const tab = e.currentTarget.dataset.tab
    this.setData({ currentTab: tab })
    this.filterRecords()
  },

  filterRecords() {
    const { records, currentTab } = this.data
    let filtered = records
    if (currentTab !== 'all') {
      filtered = records.filter(item => item.status === currentTab)
    }
    this.setData({ filteredRecords: filtered })
  },

  onCancel(e) {
    const id = e.currentTarget.dataset.id
    wx.showModal({
      title: '确认取消',
      content: '确定要取消该预约吗？',
      confirmColor: '#ff4d4f',
      success: async (res) => {
        if (res.confirm) {
          try {
            const openid = app.globalData.userInfo.openid
            const success = await appointmentDB.cancel(id, openid)
            if (success) {
              wx.showToast({ title: '已取消预约', icon: 'success' })
              this.loadRecords()
            } else {
              wx.showToast({ title: '取消失败，无权限或状态不允许', icon: 'none' })
            }
          } catch (err) {
            console.error('取消预约失败', err)
            wx.showToast({ title: '操作失败', icon: 'none' })
          }
        }
      }
    })
  },

  goAppointment() {
    wx.navigateTo({
      url: '/pages/appointment/appointment'
    })
  }
})