// pages/shopCart/shopCart.js
const app = getApp()
Page({

   /**
    * 页面的初始数据
    */
   data: {
      tabBarIndex: [],
      carts: [],               // 购物车列表
      hasList: false,          // 列表是否有数据
      totalPrice: 0,           // 总价，初始为0
      selectAllStatus: false,    // 全选状态，默认全选
      selected: true,
      sub: true,
      // 选中的所有价格
      allPrice: 0,
      nodata: false
   },
   submit(e){
     console.log(e)  
     app.ajax('Index/gatherFormId', {
       formId: e.detail.formId,
       unique_id: app.globalData.unique_id
     },(res)=>{
       console.log(res)
     })
   },
   //   去结算
   sub() {
      var cartList = this.data.carts.cartList;

      var idStr = ""
      for (let n in cartList) {
         if (cartList[n].checked == true) {
            console.log(cartList[n])
            idStr = idStr + cartList[n].cart_id+","
         }
      }
      console.log(idStr)
      if (idStr!=""){
         wx.navigateTo({
            url: '../submitOrder/submitOrder?idStr=' + idStr,
         })
      }else{
         wx.showLoading({
            title: '请选择商品',
            duration: 2000
         })
      }
      
   },
   // 选中商品计算价格
   calculatePrice() {
      var cartList = this.data.carts.cartList;
      console.log(cartList.length)
      var allPrice = 0
      for (let n in cartList) {
         if (cartList[n].checked == true) {
            allPrice = allPrice + parseFloat(cartList[n].goods_price) * parseFloat(cartList[n].goods_num)
         }
      }
      console.log(allPrice)
      this.setData({
         allPrice: allPrice
      })
   },
   // 全选
   selectAll() {
      var cartList = this.data.carts.cartList;
      if (this.data.selectAllStatus == false) {
         for (let n in cartList) {
            cartList[n].checked = true
         }
         this.setData({
            "carts.cartList": cartList,
            selectAllStatus: !this.data.selectAllStatus
         })
      } else {
         for (let n in cartList) {
            cartList[n].checked = false
         }
         this.setData({
            "carts.cartList": cartList,
            selectAllStatus: !this.data.selectAllStatus
         })
      }
      this.calculatePrice()

   },
   // 删除
   del(e) {
      var cart_id = e.currentTarget.dataset.cart_id;
     wx.showModal({
       title: '提示',
       content: '是否删除该商品',
       success:  (res) => {
         if (res.confirm) {
           console.log('用户点击确定')
           app.ajax("Cart/del", {
             cart_id: cart_id
           }, (res) => {
             console.log(res)
             if (res.data.status == true) {
               this.getShopCar()
               // 获取购物车数量
               app.ajax("CountNum/countCart", {
                 unique_id: app.globalData.unique_id
               }, (res) => {
                 console.log(res)
                 if (res.data.status == true) {
                   app.globalData.tabBar[1].num = res.data.data[0].count
                   this.setData({
                     tabBarIndex: app.globalData.tabBar
                   })
                   console.log(res.data.data[0].count)
                   if (res.data.data[0].count == null){
                     console.log(1)
                      this.setData({
                        allPrice:0,
                        nodata: true
                      })
                   }else{
                     this.calculatePrice()
                   }
                 }
                 
               }, (res) => { })
             }
           }, (res) => { })
         } else if (res.cancel) {
           console.log('用户点击取消')
         }
       }
     })
      
   },
   // 添加购物车数量
   addCount(e) {
      // console.log(e.currentTarget.dataset.cart_id)
      var cart_id = e.currentTarget.dataset.cart_id;
      var index = e.currentTarget.dataset.index;
      var cartList = this.data.carts.cartList;
      var num = parseInt(cartList[index].goods_num)
      console.log(num)
      if (num < 1) {

      } else {
         num++
         app.ajax("Cart/editNum", {
            cart_id: cart_id,
            goods_num: num
         }, (res) => {
            console.log(res)
            if (res.data.status == true) {
               this.getShopCar()
               // 获取购物车数量
               app.ajax("CountNum/countCart", {
                  unique_id: app.globalData.unique_id
               }, (res) => {
                  console.log(res)
                  if (res.data.status == true) {
                     app.globalData.tabBar[1].num = res.data.data[0].count
                     this.setData({
                        tabBarIndex: app.globalData.tabBar
                     })
                  }
               }, (res) => { })
            }else{
              console.log(res)
              wx.showToast({
                title: res.data.msg,
                icon: 'none'
              })
            }
         }, (res) => { })
      }
   },
   // 公用获取购物车数据
   getShopCar() {
      wx.showLoading({
         title: '加载中',
      })
      // 获取购物车
      app.ajax("Cart/index", {
         unique_id: app.globalData.unique_id
      }, (res) => {
         console.log("获取购物车")
         console.log(res)
         wx.hideLoading()
         if (res.data.status == true) {
            // wx.showToast({
            //    title: '获取成功',
            //    icon: 'success',
            //    duration: 1000
            // })
            var data =res.data.data
      
            for (let n in data.cartList) {
              data.cartList[n].checked = true
            }
            app.globalData.shoppingCart = data
              console.log(app.globalData.tabBar)
              this.setData({
                carts: app.globalData.shoppingCart,
                selectAllStatus:true
              })
            this.calculatePrice()

         } else {
            app.globalData.shoppingCart = null
            this.setData({
               carts: app.globalData.shoppingCart
            })
         }
      }, (res) => { })



      // 获取购物车数量
      app.ajax("CountNum/countCart", {
         unique_id: app.globalData.unique_id
      }, (res) => {
         console.log(res)
         if (res.data.status == true) {
           if (res.data.data[0].count == null) {
             console.log(1)
             this.setData({
               allPrice: 0,
               nodata: true
             })
           }
          app.globalData.tabBar[1].num = res.data.data[0].count
         }
      }, (res) => { })
   },
   // 购物车数量递减
   minusCount(e) { 
      // console.log(e.currentTarget.dataset.cart_id)
      var cart_id = e.currentTarget.dataset.cart_id;
      var index = e.currentTarget.dataset.index;
      var cartList = this.data.carts.cartList;
      var num = parseInt(cartList[index].goods_num)
      console.log(num)
      if (num <= 1) {
          wx.showModal({
            title: '提示',
            content: '是否删除该商品',
            showCancel: false,
            success: (res) => {
              if (res.confirm) {
                console.log('用户点击确定')
                app.ajax("Cart/del", {
                  cart_id: cart_id
                }, (res) => {
                  console.log(res)
                  if (res.data.status == true) {
                    this.getShopCar()
                    // 获取购物车数量
                    app.ajax("CountNum/countCart", {
                      unique_id: app.globalData.unique_id
                    }, (res) => {
                      console.log(res)
                      if (res.data.status == true) {
                        app.globalData.tabBar[1].num = res.data.data[0].count
                        this.setData({
                          tabBarIndex: app.globalData.tabBar
                        })
                      }
                    }, (res) => { })
                  }
                }, (res) => { })
              } else if (res.cancel) {
                console.log('用户点击取消')
              }
            }
          })
      
      } else {
         num--
         app.ajax("Cart/editNum", {
            cart_id: cart_id,
            goods_num: num
         }, (res) => {
            console.log(res)
            if (res.data.status == true) {
               this.getShopCar()
               // 获取购物车数量
               app.ajax("CountNum/countCart", {
                  unique_id: app.globalData.unique_id
               }, (res) => {
                  console.log(res)
                  if (res.data.status == true) {
                    
                     app.globalData.tabBar[1].num = res.data.data[0].count
                     this.setData({
                        tabBarIndex: app.globalData.tabBar
                     })
                  }
               }, (res) => { })
            }
         }, (res) => { })
      }


   },
   // 选择购物车商品
   selectList(e) {
      console.log(e.currentTarget.dataset.index)
      var index = e.currentTarget.dataset.index;
      var cartList = this.data.carts.cartList;
      cartList[index].checked = !cartList[index].checked
      this.setData({
         "carts.cartList": cartList,
      })
     if (!cartList[index].checked){
      this.setData({
        selectAllStatus: false
      })
       
     }
      this.calculatePrice()

   },

   // 下导航
   tabBar(e) {
      var index = e.currentTarget.dataset.index;
      var tabBar = app.globalData.tabBar
      for (let n in tabBar) {
         tabBar[n].state = false
      }
      tabBar[index].state = !tabBar[index].state
      app.globalData.tabBar = tabBar
      wx.reLaunch({
         url: tabBar[index].url,
      })
   },
   /**
    * 生命周期函数--监听页面加载
    */
   onLoad: function (options) {
      
   },

   /**
    * 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 () {
      console.log(app.globalData.tabBar)
      var tabBar = app.globalData.tabBar
      for(let n in tabBar){
         tabBar[n].state = false
      }
      tabBar[1].state = true
      this.setData({
         tabBarIndex: tabBar
      })
      if (app.globalData.shoppingCart != null) {
         console.log(app.globalData.shoppingCart)
         this.getShopCar()
      }
      console.log("13213123123214654768343423")
     this.getShopCar()
   },

   /**
    * 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 () {

   }
})