// pages/beerShop/beerShop.js
const app = getApp();
const request = require("../../utils/request.js");
const login = require("../../utils/login.js");

Page({
  /**
   * 页面的初始数据
   */
  data: {
    head_item: 0,
    choice_show: false,
    beerTypeId: null,
    breweryId: null,
    lastProductId: null,
    breweryTagList: [],
    styleList: [],
    productDataList: []
  },
  toBeerDetail(event) {
    login.ifLogin('../beerDetail/beerDetail?productId=' + event.currentTarget.dataset.pid)
  },
  getProductList() {
    let that = this;
    let breweryId = that.data.breweryId;
    let beerTypeId = that.data.beerTypeId;
    request.getData(
      'app/product/list',
      {breweryId: breweryId, beerTypeId: beerTypeId},
      res => {
        that.setData({
          productDataList: res.data.data
        })
      },
      res => {
        console.log(res)
      }
    )
  },
  bindHead(event) {
    let id = event.currentTarget.dataset.id;
    if(this.data.head_item == id) {
      this.setData({
        head_item: 0,
        choice_show: false
      })   
    }else{
      this.setData({
        head_item: id,
        choice_show: true
      })      
    }
  },
  choiceShow() {
    this.setData({
      choice_show: false,
      head_item: 0,
    })
  },
  chooseStyle(e) {
    let id = e.currentTarget.dataset.id;
    if(this.data.beerTypeId == id) {
      this.setData({
        beerTypeId: null,
        choice_show: false,
        head_item: 0
      })
    }else{
      this.setData({
        beerTypeId: id,
        choice_show: false,
        head_item: 0
      })      
    }
    this.getProductList();
  },
  chooseBrewery(e) {
    let id = e.currentTarget.dataset.id;
    if(this.data.breweryId == id) {
      this.setData({
        breweryId: null,
        choice_show: false,
        head_item: 0
      })
    }else{
      this.setData({
        breweryId: id,
        choice_show: false,
        head_item: 0
      })      
    }
    this.getProductList();
  },
  getTagData() {
    let that = this;
    request.getData(
      'app/tag/filtrate/list',{},
      res => {
        let breweryTagList = res.data.data.breweryTagList;
        breweryTagList.unshift({
          breaweryName: '全部',
          breweryId: null
        })
        let styleList = res.data.data.styleList;
        styleList.unshift({
          beerTypeName: '全部',
          beerTypeId: null
        })
        that.setData({
          breweryTagList: breweryTagList,
          styleList: styleList
        })
      },
      res => {
        console.log(res)
      }
    )
  },
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    let that = this;
    that.getTagData();
    that.getProductList();
  },

  /**
   * 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 () {
    if (typeof this.getTabBar === 'function' &&
      this.getTabBar()) {
      this.getTabBar().setData({
        selected: 1
      })
    }
  },

  /**
   * 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 () {
    let that = this;
    let breweryId = that.data.breweryId;
    let beerTypeId = that.data.beerTypeId;
    let lastProductId = Number(that.data.productDataList[that.data.productDataList.length-1].productId);
    request.getData(
      'app/product/list',
      {breweryId: breweryId,beerTypeId: beerTypeId, lastProductId: lastProductId},
      res => {
        that.setData({
          productDataList: that.data.productDataList.concat(res.data.data)
        })
      },
      res => {
        console.log(res)
      }
    )
  },

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

  },
})