// pages/notification/notification.js
// 消息通知逻辑处理

const app = getApp()
const api = require('../../services/api')

Page({
  data: {
    notificationList: [],
    page: 1,
    pageSize: 10,
    hasMore: true,
    loading: false,
    unreadCount: 0
  },

  onLoad() {
    this.checkLogin()
  },

  onShow() {
    this.checkLogin()
  },

  onPullDownRefresh() {
    this.setData({ page: 1, notificationList: [], hasMore: true })
    this.loadNotificationList()
    wx.stopPullDownRefresh()
  },

  onReachBottom() {
    if (this.data.hasMore && !this.data.loading) {
      this.setData({ page: this.data.page + 1 })
      this.loadNotificationList()
    }
  },

  checkLogin() {
    const userInfo = wx.getStorageSync('userInfo')
    if (!userInfo) {
      wx.redirectTo({ url: '/pages/login/login' })
      return
    }
    this.loadNotificationList()
  },

  loadNotificationList() {
    if (this.data.loading || !this.data.hasMore) return

    this.setData({ loading: true })

    api.getNotificationList({
      page: this.data.page,
      pageSize: this.data.pageSize
    }).then(res => {
      this.setData({ loading: false })
      if (res.code === 200) {
        const list = res.data.list || []
        this.setData({
          notificationList: this.data.page === 1 ? list : this.data.notificationList.concat(list),
          hasMore: list.length >= this.data.pageSize,
          unreadCount: res.data.unreadCount || 0
        })
      }
    }).catch(() => {
      this.setData({ loading: false })
    })
  },

  onMarkAllRead() {
    api.markAllNotificationRead().then(res => {
      if (res.code === 200) {
        wx.showToast({ title: '已全部标为已读', icon: 'success' })
        this.setData({ page: 1, notificationList: [], hasMore: true, unreadCount: 0 })
        this.loadNotificationList()
      }
    })
  },

  onMarkRead(e) {
    const id = e.currentTarget.dataset.id
    api.markNotificationRead({ id }).then(res => {
      if (res.code === 200) {
        const list = this.data.notificationList
        const index = list.findIndex(item => item.id === id)
        if (index !== -1) {
          list[index].isRead = true
          this.setData({
            notificationList: list,
            unreadCount: Math.max(0, this.data.unreadCount - 1)
          })
        }
      }
    })
  },

  onDelete(e) {
    const id = e.currentTarget.dataset.id
    wx.showModal({
      title: '提示',
      content: '确定要删除这条通知吗？',
      success: res => {
        if (res.confirm) {
          api.deleteNotification({ id }).then(result => {
            if (result.code === 200) {
              wx.showToast({ title: '删除成功', icon: 'success' })
              this.setData({ page: 1, notificationList: [], hasMore: true })
              this.loadNotificationList()
            }
          })
        }
      }
    })
  },

  onNotificationTap(e) {
    const notification = e.currentTarget.dataset.notification
    this.onMarkRead({ currentTarget: { dataset: { id: notification.id } } })

    if (notification.url) {
      wx.navigateTo({ url: notification.url })
    }
  }
})

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 */