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

Page({
  /**
   * 页面的初始数据
   */
  data: {
    safeBottom: app.globalData.safeBottom,
    height: app.globalData.fragmentHeight,
    id: null,
    hostDetail: null,
    momentList: [],
    top: 0,
    requesting: false,
    finished: false,
    form: {
      pageNum: 1
    }
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.setData({height: app.globalData.fragmentHeight})
    if(options.id){
      this.data.id = options.id
      event.on('EventMessage', this, this.onEvent)
      this.fetchMomentList() 
    }
  },
  onShow: function(){
    wx.showLoading({
      title: '加载中',
      mask: true
    })
    request.get('/information-center/paper-bar/get/' + this.data.id).then(result => {
      //成功回调
      this.setData({ hostDetail: result.data })
      wx.hideLoading()
    }).catch(err => {
      //异常回调
      wx.hideLoading()
      util.showToast(err)
    })
  },
  onEvent: function (message) {
    if (message.what == 501) {
      this.onRefreshList()
    }
  },
  onRefreshList: function () {
    this.setData({
      momentList: [],
      ['form.pageNum']: 1,
      finished: false
    })
    this.fetchMomentList()
  },
  fetchMomentList: function(){
    if (this.data.requesting || this.data.finished) {
      return
    }
    this.setData({ requesting: true })
    request.get('/information-center/get/post-list/in/' + this.data.id, 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
        if(num == 1){
          this.setData({
            momentList: [],
            requesting: false,
            [nowList]: respList,
            ['form.pageNum']: (num + 1),
            finished
          })
        } else {
          this.setData({
            [nowList]: respList,
            requesting: false,
            ['form.pageNum']: (num + 1),
            finished
          })
        }
      } else {
        this.setData({ finished: true, requesting: false })
      }
    }).catch(err => {
      //异常回调
      this.setData({ requesting: false })
      util.showToast(err)
    })
  },
  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  addMoment: function () {
    if(!this.data.hostDetail.join){
      this.wuxDialog = this.wuxDialog || this.selectComponent('#wux-dialog')
      var that = this
      this.wuxDialog.open({
        resetOnClose: true,
        title: '温馨提示',
        content: '您还没有加入该纸吧，无法发帖，现在就加入纸吧？',
        buttons: [{
          text: '取消'
        },{
          text: '加入纸吧',
          type: 'primary',
          onTap(e) {
            that.toHostinfo()
          }
        }]
      })
      return
    }
    wx.navigateTo({
      url: '/pages/moment/create/index?barId=' + this.data.id
    })
  },
  /**
   * 生命周期函数--监听页面隐藏
   */
  toHostinfo: function () {
    if(this.data.hostDetail){
      wx.navigateTo({
        url: '/pages/moment/host-info/index?id=' + this.data.hostDetail.id
      })
    }
  },
  lookItem: function(e){
    var item = this.data.momentList[e.currentTarget.dataset.page][e.currentTarget.dataset.index]
    wx.navigateTo({
      url: '/pages/moment/detail/index?type=1&id=' + item.id
    })
  },
  onUnload: function(){
    event.remove('EventMessage', this)
  }
})