pos_xcx/pages/food/food.js

import {
  default as productApi
} from "../../api/product"

const app = getApp()
var utils = require('../../utils/util.js');

Page({
  data: {
    currentTab: 0,
    activeTab:0,
    showCart:false,
    mask:true,
    series:[],//商品分类
    cartList:[],//购物车列表
    currentProductList:[],//商品
    totalNum:0,//购物车总数
    totalPrice:0.00//购物车总价格
  },


  onShow: async function () {
    // console.log(app.globalData.userInfo)
    // var that = this;
    // let checkMobile = false;
    // if(app.globalData.userInfo && app.globalData.userInfo.mobile){
    //   checkMobile = true;
    // }
    //   that.setData({
    //     check_mobile: checkMobile
    //   })
  
   
  },

   //商品分类列表
  productTypeList: async function(){
    let self = this
    let rs = await productApi.getProductTypeList(1,10000,2)
    self.setData({
      series: rs.list
    })
  },

   //商品列表
  getProductList: async function (refresh = false) {
    const self = this
    let prolist = await productApi.getProductList(0,1,10000,2);
    self.setData({
      productList:prolist.list
    })
    await this.initProduct();
  },

  // 获取购物车
  getCart: async function(){
    let self = this;
    let data = {
      tableId: this.data.tableId,
      storeId: this.data.storeId
    }
    const rs = await productApi.getCart(data)
    console.log(rs);
    self.setData({
      cartId:rs.id,
      cartList:rs.list,
      totalNum:rs.totalNum?rs.totalNum:0,
      totalPrice:rs.totalPrice?rs.totalPrice:0.00,
    })
  },

  // 更新购物车 type类型1增加 2减少
  updateCart: async function(productId,type=1,num=1){
    let data = {
      productId : productId,
      num : num,
      cartId  : this.data.cartId,
      type   : type 
    }
     await productApi.updateCart(data)
  },

  updateCartClick :async function(e){
    let productId = e.target.dataset.no;
    let type = e.target.dataset.type;
    //  wx.showLoading({
    //   title: '加入购物车',
    // });
    await this.updateCart(productId,type);
    await this.getCart();
    if(this.data.cartList.length ==0){
      this.setData({showCart:false})
    }
    await this.initProduct();
    //动画
    this.cartWwing();
  },

  onLoad: async function (options) {
    
    this.setData({
      tableId:options.tableId,
      storeId:options.storeId
    })

    const isAuth = await app.isAuth()
    if (!isAuth) {
      wx.redirectTo({
        url: '/pages/prompt/prompt?page=' + this.route+"&tableId="+options.tableId+"&storeId="+options.storeId,
      })
      return
    }
    await this.getCart();
    await this.productTypeList();
    await this.getProductList();
  

  },
  
  startOrder: function (e) {
    if(this.data.cartList.length>0){
      this.setData({showCart:false})
      wx.navigateTo({
        url: '/pages/foodOrder/foodOrder?tableId='+this.data.tableId+"&storeId="+this.data.storeId+"&cartId="+this.data.cartId
      })
    }else{
      wx.showToast({
        title: '请选择产品',
        icon: 'none',
        duration: 1000
      })
    
    }
    
  },
  handleTabClick: function (e) {
    let index = e.currentTarget.dataset.index;
    this.activeTab(index);
    this.setData({ activeTab: index });
  },
  handleSwiperChange: function (e) {
    var index = e.detail.current;
    this.activeTab(index);
    this.setData({ activeTab: index });
  },
  activeTab: function (_activeTab) {
    var len = this.data.series.length;
    if (len === 0) return;
    var currentView = _activeTab - 1;
    if (currentView < 0) currentView = 0;
    if (currentView > len - 1) currentView = len - 1;
    this.setData({ currentView: currentView });
  },

  initProduct: function(){
    let series = this.data.series;
    let productList = this.data.productList;
    let cartList = this.data.cartList;
     productList.forEach((ele,pindex) => {
      ele.hasChoose = false;
      ele.hasNum  = 0;
      cartList.forEach((ite,index) => {
        if (ele.id == ite.productId){
          ele.hasChoose = true;
          ele.hasNum = ite.num;
        }
        
      });
    });
 
    let currentProductList = [];
    series.forEach((item,index) => {
      currentProductList[index] = [];
      let i = 0;
      productList.forEach((element,pindex) => {
        if (element.productTypeId == item.id){
          currentProductList[index][i] = element;
          i++;
        }
      });
    });

    this.setData({
      currentProductList:currentProductList
    })
  },
  openCartDialog: function(e){
    let type = e.currentTarget.dataset.type;
    if (type == 'open'){
      if(this.data.cartList.length==0){
        wx.showToast({
          title: '请选择产品',
          icon: 'none',
          duration: 1000
        })
      }else{
        this.setData({showCart:true})
      }
     
     
    }else{
      this.setData({showCart:false})
    }
  },
  /**
 * 点击商品+号购物车摆动
 * @return void 
 */
cartWwing: function(){
 
 // 创建动画实例(animation)
 var animation = wx.createAnimation({
 duration: 100,//动画持续时间
 timingFunction: 'ease-in',//动画以低速开始
 //具体配置项请查看文档
 })
 
 // 通过实例描述对象()
 animation.translateX(6).rotate(21).step()
 animation.translateX(-6).rotate(-21).step()
 animation.translateX(0).rotate(0).step()
 
 // 导出动画
 this.setData({
 ani: animation.export()
 })
 
},
})