// pages/process/order-list/index.js
import Scene from '../../index/scene'
import { getPaperPrice } from "../../../api/saas"
const event = require('../../../utils/event')
const util = require('../../../utils/util')
const app = getApp()

Scene({
  //  * 页面的初始数据
  data: {
    height: app.globalData.fragmentHeight,
    loading: true,
    requesting: false,
    finished: false,
    top: 0,
    orderList: [],
    form: {
      pageNum: 1,
      pageSize: 15
    },
    page: -1,
    index: -1
  },
  //  * 生命周期函数--监听页面加载
  onLoad: function (options) {
    event.on('OrderMessage', this, this.onEvent)
    this.setData({ height: app.globalData.fragmentHeight })
    this.fetchOrderList()
  },
  onEvent: function(message){
    if (message.what == 201) {
      this.onRefreshList()
    } else if (message.what == 202) {
      this.setData({ [`orderList[${this.data.page}][${this.data.index}]`]: message.detail })
    }
  },
  onRefreshList: function () {
    if (this.data.requesting) {
      return
    }
    this.setData({ orderList: [], ['form.pageNum']: 1, loading: true, finished: false })
    this.fetchOrderList()
  },
  fetchOrderList: function () {
    if (this.data.requesting || this.data.finished) {
      return
    }
    this.data.requesting = true
    getPaperPrice(this.data.form).then(result => {
      if (result.data && result.data.records && result.data.records.length) {
        var respList = result.data.records
        let nowList = `orderList[${this.data.orderList.length}]`
        var num = this.data.form.pageNum
        var finished = ((num - 1) * this.data.form.pageSize + respList.length) >= result.data.total
        if(this.data.form.pageNum == 1){
          this.setData({ [nowList]: respList, ['form.pageNum']: (num + 1), finished, top: 0, requesting: false, loading: false })
        } else {
          this.setData({ [nowList]: respList, ['form.pageNum']: (num + 1), finished, requesting: false, loading: false })
        }
      } else {
        this.setData({ finished: true, requesting: false, loading: false })
      }
    }).catch(err => {
      this.setData({ requesting: false, loading: false })
      util.showToast(err)
    }).then(() => {
      this.refresh = this.refresh || this.selectComponent('#refresh')
      this.refresh.setRefresh(false)
    })
  },
  lookItem: function (e) {
    if(e.currentTarget.dataset.page >= 0){
      this.data.page = e.currentTarget.dataset.page
      this.data.index = e.currentTarget.dataset.index
      var item = this.data.orderList[this.data.page][ this.data.index]
      wx.navigateTo({ url: `/pages/setting/paper-detial/index?id=${item.id}` })
    } else {
      wx.navigateTo({ url: `/pages/setting/paper-detial/index` })
    }
  },
  onUnload: function(){
    event.remove('OrderMessage', this)
  }

})