// pages/shop/detail/index.js
const request = require('../../../utils/request')//导入模块
const math = require('../../../utils/math')
const util = require('../../../utils/util')
const app = getApp()
const urlList = ['/recycle-service/get/store-product-list', '/recycle-service/purchase/get/product-list']

Page({
  /**
   * 页面的初始数据
   */
  data: {
    height: app.globalData.fragmentHeight,
    kg: app.globalData.kg,
    imageHeight: 0,
    imgList: [],
    detail: null,
    tabList: [ '供应', '采购', '联系'],
    tabIndex: 0,
    orderList: [],
    loading: true,
    requesting: false,
    finished: false, 
    form: {
      storeId: null,
      pageNum: 1
    }
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.data.form.storeId = options.storeId
    wx.showLoading({ title: '加载中', mask: true })
    request.get('/recycle-service/get/store-information/' + options.storeId).then(result => {
      //成功回调
      this.setData({
        detail: result.data,
        imgList: result.data.coverImgUrlList, 
        imageHeight: math.divide(math.times(750, 9), 16),
        height: app.globalData.fragmentHeight,
        kg: app.globalData.kg,
      })
      wx.hideLoading()
    }).catch(err => {
      //异常回调
      wx.hideLoading()
    })
    this.fetchGoodList()
  },
  viewImage: function(event){
    wx.previewImage({ urls: this.data.imgList, current: event.currentTarget.dataset.url })
  },
  onTabChange: function({detail}){
    if (this.data.tabIndex == Number(detail.index)) {
      return
    }
    this.data.tabIndex = Number(detail.index)
    if(this.data.tabIndex != 2){
      this.onRefreshList()
    } else {
      this.setData({ tabIndex: this.data.tabIndex })
    }
  },
  onRefreshList: function () {
    if(this.data.tabIndex == 2){
      this.setData({ requesting: false })
      return
    }
    this.setData({
      orderList: [],
      tabIndex: this.data.tabIndex,
      ['form.pageNum']: 1,
      loading: true,
      finished: false
    })
    this.fetchGoodList()
  },
  fetchGoodList: function () {
    if (this.data.requesting || this.data.finished) {
      return
    }
    if (this.data.loading) {
      this.data.requesting = true
    } else {
      this.setData({ requesting: true })
    }
    // /product/cheapList特价产品列表
    request.get(urlList[this.data.tabIndex], this.data.form).then(result => {
      //成功回调
      if (result.data.records.length) {
        var respList = result.data.records
        let nowList = `orderList[${this.data.orderList.length}]`
        var num = this.data.form.pageNum
        var finished = this.data.form.pageNum >= 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 => {
      //异常回调
      this.setData({
        requesting: false,
        loading: false
      })
      util.showToast(err)
    })
  },
  lookItem: function(event){
    var item = this.data.orderList[event.currentTarget.dataset.page][event.currentTarget.dataset.index]
    if(item.bidType == 3){
      wx.navigateTo({ url: '/pages/purchase/detail/index?id=' + item.id })
    } else {
      wx.navigateTo({ url: '/pages/mall/detail/index?id=' + item.id })
    }
  }

})