// mall/index/shopInfo/shopInfo.js
const app = getApp();
const regeneratorRuntime = app.loadAsync()
const model = app.loadModel("index")
const http = app.loadHttp()
const util = app.loadUtils("util")
Page({

  /**
   * 页面的初始数据
   */
  data: {
    system: app.globalData.system, //设备相关信息
    pageTitle: "详情", //头部标题
    isBack: true,//显示返回
    imgUrls: [
      'https://ss0.bdstatic.com/94oJfD_bAAcT8t7mm9GUKT-xh_/timg?image&quality=100&size=b4000_4000&sec=1564218168&di=f9df8e6bc2e9d02f6f1b7fc73247d927&src=http://ac-r.static.booking.cn/images/hotel/max1024x768/987/98767654.jpg',
      'https://ss0.bdstatic.com/94oJfD_bAAcT8t7mm9GUKT-xh_/timg?image&quality=100&size=b4000_4000&sec=1564218168&di=f9df8e6bc2e9d02f6f1b7fc73247d927&src=http://ac-r.static.booking.cn/images/hotel/max1024x768/987/98767654.jpg',
      'https://ss0.bdstatic.com/94oJfD_bAAcT8t7mm9GUKT-xh_/timg?image&quality=100&size=b4000_4000&sec=1564218168&di=f9df8e6bc2e9d02f6f1b7fc73247d927&src=http://ac-r.static.booking.cn/images/hotel/max1024x768/987/98767654.jpg'
    ],
    indicatorDots: false,
    autoplay: true,
    interval: 3000,
    duration: 1000,
    current: 0,
    visible: false,
    cartNum: 0,//角标
    id: "",//商品id
    shopInfo: {},//商品的详情信息
    shopAttr: [],//商品的属性
    attr: [],//勾选了的属性
    type: null,//0购物车 1购买
    num: 1,//商品的数量
  },
  // 轮播图下表
  currentChange(e) {
    this.setData({
      current: e.detail.current
    })
  },
  //弹出层开启关闭
  onClose(e) {
    let type = e.currentTarget.dataset.type
    this.setData({
      visible: !this.data.visible,
      type: type
    })
  },
  // 打开弹出层
  onOpen() {
    this.setData({
      visible: true
    })
  },
  // 选择数量
  numChang(e) {
    this.setData({
      num: e.detail.value
    })
  },
  // 选择完确定
  async sure() {
    let shopInfo = this.data.shopInfo
    let data = {
      id: shopInfo.id,
      name: shopInfo.name,
      image: shopInfo.top_img,
      original_price: shopInfo.original_price,
      price: shopInfo.price,
      num: this.data.num,
      attr: this.data.attr
    }
    this.setData({
      visible: false
    })
    if (this.data.type == 0) {
      model.shopCart.setCart(data)
      return
    }
    let isLogin = await util.isLoginJump()
    if (isLogin == 1) return;
    app.globalData.temCart = {
      total: (data.num * data.price).toFixed(2),
      allCart: [data]
    }
    wx.navigateTo({
      url: "/mall/placeOrder/placeOrder"
    })
  },
  // 获取商品的详情
  async getShopInfo() {
    let res = await http.http.request1({ url: `${http.api.storeProductDetails}/${this.data.id}`, method: "GET" })
    this.setData({
      shopInfo: res.data.data
    })
    this.getAttr()
  },
  // 获取商品属性
  async getAttr() {
    let res = await http.http.request1({ url: `${http.api.storeProductAttr}/${this.data.id}`, method: "GET" })
    res.data.data.map((v, i) => {
      res.data.data[i].index = i
    })
    this.setData({
      shopAttr: res.data.data
    })
  },
  // 实时更新购物车角标
  async realUpdateCarker() {
    var that = this
    app.setWatching('cartNum', (v) => {
      that.setData({
        cartNum: v
      });
    });
  },
  // 去往购物车
  goCart() {
    wx.navigateTo({
      url: "/mall/shopcart/shopcart"
    })
  },
  // 选择商品属性
  selectAttr(e) {
    let { i1, i2 } = e.currentTarget.dataset
    let shopAttr = this.data.shopAttr
    let attr = this.data.attr //选中的商品属性
    let isShow = [] //当前选中或者移除的所有isShow字段
    shopAttr[i1].attr_vals.map((v, i) => {
      if (i2 == i) {
        shopAttr[i1].attr_vals[i].isShow = !shopAttr[i1].attr_vals[i].isShow
      } else {
        shopAttr[i1].attr_vals[i].isShow = false
      }
      isShow.push(v.isShow)
    })
    // 获取当前商品属性选中的下表，然后插入对应下表的method_value到attr
    let is = isShow.indexOf(true)
    if (is != -1) {
      attr[i1] = shopAttr[i1].attr_vals[is].method_value
    } else {
      attr[i1] = ""
    }
    this.setData({
      shopAttr: shopAttr,
      attr: attr
    })
  },
  // 商品详情查看大图
  bigShopImg(e) {
    let imgI = e.currentTarget.dataset.url, imgsArr = this.data.shopInfo.imgs, news = [];
    imgsArr.map((v, i) => {
      news.push(v.detail_img)
    })
    wx.previewImage({
      current: imgI, // 当前显示图片的http链接
      urls: news // 需要预览的图片http链接列表
    })
  },
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.realUpdateCarker()
    // 接收商品id
    this.setData({
      id: options.id
    })
    this.getShopInfo()
  },

  /**
   * 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 () {

  },

  /**
   * 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 () {

  },

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

  }
})