// pages/stock/index.js
const request = require('../../../utils/request') //导入模块
const event = require('../../../utils/event.js')
const util = require('../../../utils/util')
const app = getApp()

Component({
  options: {
    addGlobalClass: true,
    multipleSlots: true
  },
  /**
   * 页面的初始数据
   */
  data: {
    height: app.globalData.safeFragmentHeight - 190,
    vip: false,
    momentList: [],
    requesting: false,
    finished: false,
    form: {
      categoryId: 3,
      pageNum: 1
    }
  },
  lifetimes: {
    // 生命周期函数，可以为函数，或一个在methods段中定义的方法名
    attached: function () {
      this.setData({ height: app.globalData.safeFragmentHeight - 190, vip: app.globalData.userInfo.isVIP })
      event.on('EventMessage', this, this.onEvent)
    },
    detached: function () {
      event.remove('EventMessage', this)
    }
  },
  methods: {
    onRestart: function () {
      if (!this.data.firstShow || this.data.momentList.length <= 0) {
        this.onRefreshList()
      }
      this.data.firstShow = true
    },
    onEvent: function (message) {
      if (message.what == 573) {
        // 帖子发布刷新
        this.onRefreshList()
      } else if(message.what == 200){
        // Vip的变化
        this.setData({ vip: app.globalData.userInfo.isVIP })
        this.onRefreshList()
      }
    },
    //*************************************************momentList************************************************//
    onRefreshList: function () {
      if(!this.data.vip){
        this.setData({ requesting: false })
        return
      }
      this.setData({ momentList: [], ['form.pageNum']: 1, finished: false })
      this.fetchMomentList()
    },
    fetchMomentList: function(){
      if (this.data.requesting || this.data.finished) {
        return
      }
      this.data.requesting = true
      request.get('/information-center/article/get/Article-list/', this.data.form).then(result => {
        //成功回调
        if (result.data.records.length) {
          var respList = result.data.records
          let nowList = `momentList[${this.data.momentList.length}]`
          var num = this.data.form.pageNum
          var finished = this.data.form.pageNum >= result.data.pages
          this.setData({
            [nowList]: respList,
            ['form.pageNum']: (num + 1),
            finished,
            requesting: false
          })
        } else {
          this.setData({ requesting: false })
        }
      }).catch(err => {
        //异常回调
        this.setData({ requesting: false })
      })
    },
    lookItem: function(e){
      var item = this.data.momentList[e.currentTarget.dataset.page][e.currentTarget.dataset.index]
      wx.navigateTo({ url: '/pages/article/detail/index?id=' + item.id })
    },
    likeItem: function(e){
      var item = this.data.momentList[e.currentTarget.dataset.page][e.currentTarget.dataset.index]
      if(item.isLiked){
        util.showToast('请勿重复点赞')
        return
      }
      request.post('/information-center/like-or-cancel/post', {postId: item.id}).then(result => {
        this.setData({ 
          ['momentList[' + e.currentTarget.dataset.page + '][' + e.currentTarget.dataset.index + '].likeQuantity']: result.data.likeQuantity,
          ['momentList[' + e.currentTarget.dataset.page + '][' + e.currentTarget.dataset.index + '].isLiked']: 1
         })
      }).catch(error => {
        util.showToast(error)
      })
    },
    toVip: function(){
      wx.navigateTo({ url: '/pages/ztbvip/index' })
    }
  }
})