const util = require('../../utils/util.js')

Page({

  /**
   * 页面的初始数据
   */
  data: {
    publisherId: '',
    publisherInfo: {},
    like: false,
    likeDisabled: true,
    pageToken: 0,
    mainDatas: []
  },

  detail: function () {
    wx.navigateTo({
      url: '/pages/publisherDetail/publisherDetail',
    }).then(res => {
      res.eventChannel.emit('loadCommonData', {
        data: this.data.publisherInfo
      })
    })
  },

  loadExtraData: function () {
    wx.showNavigationBarLoading()
    const arr = []
    arr.push(wx.cloud.callFunction({
      name: 'listMessages',
      data: {
        pub_id: this.data.publisherId,
        page_token: this.data.pageToken,
        page_size: 20
      }
    }))
    arr.push(wx.cloud.callFunction({
      name: 'getFollow',
      data: {
        pub_id: this.data.publisherId
      }
    }))
    Promise.all(arr).then(res => {
      wx.hideNavigationBarLoading()
      if (res[0].result.status !== 'OK' || res[1].result.status !== 'OK') {
        wx.showToast({
          title: res[0].result.errMsg || res[1].result.errMsg,
          icon: 'none'
        })
        return
      }
      for (let i = 0; i < res[0].result.list.length; i++) {
        res[0].result.list[i] = util.dbToMsg(res[0].result.list[i])
        res[0].result.list[i].publisher = this.data.publisherInfo
      }
      this.setData({
        mainDatas: this.data.mainDatas.concat(res[0].result.list),
        pageToken: res[0].result.next_page_token,
        like: res[1].result.total === 1,
        likeDisabled: false
      })
    })
  },

  toggleLike: function () {
    if (this.data.likeDisabled) {
      return
    }
    wx.showLoading({
      title: this.data.like ? '取消关注' : '关注中'
    })
    wx.cloud.callFunction({
      name: this.data.like ? 'deleteFollow' : 'createFollow',
      data: {
        pub_id: this.data.publisherId
      }
    }).then(res => {
      wx.hideLoading()
      if (res.result.status !== 'OK') {
        wx.showToast({
          title: res.result.errMsg,
          icon: 'none'
        })
        return
      }
      wx.showToast({
        title: this.data.like ? '取消关注成功' : '关注成功',
        icon: 'none'
      })
      this.setData({
        like: !this.data.like
      })
    })
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    if (options.id) {
      this.setData({
        publisherId: options.id
      })
      wx.showLoading({
        title: "加载中"
      })
      wx.cloud.callFunction({
        name: 'getPublisher',
        data: {
          pub_id: this.data.publisherId
        }
      }).then(res => {
        wx.hideLoading()
        if (res.result.status !== 'OK') {
          wx.showToast({
            title: res.result.errMsg,
            icon: 'none'
          })
          return
        }
        this.setData({
          publisherInfo: res.result.data
        })
        this.loadExtraData()
      })
    } else {
      const eventChannel = this.getOpenerEventChannel()
      eventChannel.on('loadCommonData', res => {
        this.setData({
          publisherId: res.data._id,
          publisherInfo: res.data
        })
        this.loadExtraData()
      })
    }
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {

  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {
    this.loadMessageData()
  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {

  }
})