// pages/moment/price/index.js
import { getFactoryPrice } from "../../api/ztb"
const event = require('../../../utils/event')
const storage = require('../../../utils/storage')
const app = getApp()

Page({
  /**
   * 页面的初始数据
   */
  data: {
    height: app.globalData.fragmentHeight,
    kg: app.globalData.kg,
    loading: false,
    requesting: false,
    finished: false,
    top: 0,
    orderList: [],
    form: { pageNum: 1 }
  },
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    var ids = storage.get('ztb-paper-price')
    if(ids){
      this.data.form.paperMillIdList = ids
      this.onRefreshList()
    }
    event.on('EventMessage', this, this.onEvent)
  },
  onEvent: function (message) {
    if(message.what == 508){
      this.data.form.paperMillIdList = message.obj
      storage.put('ztb-paper-price', message.obj)
      this.onRefreshList()
    }
  },
  // 下拉刷新...
  onRefreshList: function () {
    this.setData({
      orderList: [],
      ['form.pageNum']: 1,
      loading: true,
      kg: app.globalData.kg,
      height: app.globalData.fragmentHeight,
      finished: false
    })
    this.fetchPapersList()
  },
  // 获取特价列表
  fetchPapersList: function () {
    if (this.data.requesting || this.data.finished) {
      return
    }
    if (this.data.loading) {
      this.data.requesting = true
    } else {
      this.setData({ requesting: true })
    }
    getFactoryPrice(this.data.form).then(result => {
      if (result.data.records.length) {
        var respList = result.data.records
        let nowList = `orderList[${this.data.orderList.length}]`
        var num = result.data.current
        var finished = result.data.current >= result.data.pages
        if(this.data.form.pageNum == 1){
          this.setData({
            [nowList]: respList,
            total: result.data.total,
            ['form.pageNum']: (num + 1),
            top: 0,
            finished,
            requesting: false,
            loading: false
          })
        } else {
          this.setData({
            [nowList]: respList,
            total: result.data.total,
            ['form.pageNum']: (num + 1),
            finished,
            requesting: false,
            loading: false
          })
        }
      } else {
        this.setData({
          finished: true,
          requesting: false,
          loading: false
        })
      }
    }).catch(err => {
      this.setData({
        requesting: false,
        finished: true,
        loading: false
      })
    })
  },
  selectMill: function(){
    wx.navigateTo({ url: '/pages/article/factory/index?type=4&ids=' + this.data.form.paperMillIdList})
  },
  onUnload: function(){
    event.remove('EventMessage', this)
  }

})