<template>
  <view class="shoppingCart">
    <view v-if="$store.getters.token||userInfo.uid">
      <view class="labelNav acea-row row-around row-middle">
        <view class="item">
          <text class="iconfont icon-xuanzhong"></text>100%正品保证
        </view>
        <view class="item">
          <text class="iconfont icon-xuanzhong"></text>所有商品精挑细选
        </view>
        <view class="item">
          <text class="iconfont icon-xuanzhong"></text>售后无忧
        </view>
      </view>
      <view class="nav acea-row row-between-wrapper">
        <view>
          购物数量
          <text class="num font-color-red">{{ count }}</text>
        </view>
        <view
          v-if="cartList.valid.length > 0"
          class="administrate acea-row row-center-wrapper"
          @click="manage"
        >{{ footerswitch ? '取消' : '管理' }}</view>
      </view>
      <view v-if="validList.length > 0 || cartList.invalid.length > 0">
        <view class="list">
          <view
            class="item acea-row row-between-wrapper"
            v-for="(item, cartListValidIndex) in validList"
            :key="cartListValidIndex"
          >
            <view class="select-btn">
              <view class="checkbox-wrapper">
                <checkbox-group @change="switchSelect(cartListValidIndex)">
                  <label class="well-check">
                    <checkbox value :checked="item.checked"></checkbox>
                  </label>
                </checkbox-group>
              </view>
            </view>
            <view class="picTxt acea-row row-between-wrapper">
              <view class="pictrue" @click="goGoodsCon(item)">
                <image :src="item.productInfo.attrInfo.image" v-if="item.productInfo.attrInfo" />
                <image :src="item.productInfo.image" v-else />
              </view>
              <view class="text">
                <view class="line1">{{ item.productInfo.storeName }}</view>
                <view
                  class="infor line1"
                  v-if="item.productInfo.attrInfo"
                >属性：{{ item.productInfo.attrInfo.sku }}</view>
                <view class="money">￥{{ item.truePrice }}</view>
              </view>
              <view class="carnum acea-row row-center-wrapper">
                <view
                  class="reduce"
                  :class="validList[cartListValidIndex].cartNum <= 1 ? 'on' : ''"
                  @click.prevent="reduce(cartListValidIndex)"
                >-</view>
                <view class="num">{{ item.cartNum }}</view>
                <view
                  class="plus"
                  v-if="validList[cartListValidIndex].attrInfo"
                  :class="validList[cartListValidIndex].cartNum >= validList[cartListValidIndex].attrInfo.stock ? 'on' : ''"
                  @click.prevent="plus(cartListValidIndex)"
                >+</view>
                <view
                  class="plus"
                  v-else
                  :class="validList[cartListValidIndex].cartNum >= validList[cartListValidIndex].stock ? 'on' : ''"
                  @click.prevent="plus(cartListValidIndex)"
                >+</view>
              </view>
            </view>
          </view>
        </view>
        <view class="invalidGoods" v-if="cartList.invalid.length > 0">
          <view class="goodsNav acea-row row-between-wrapper">
            <view @click="goodsOpen">
              <text
                class="iconfont"
                :class="goodsHidden === true ? 'icon-xiangyou' : 'icon-xiangxia'"
              ></text>失效商品
            </view>
            <view class="del" @click="delInvalidGoods">
              <text class="iconfont icon-shanchu1"></text>清空
            </view>
          </view>
          <view class="goodsList" :hidden="goodsHidden">
            <view
              v-for="(item, cartListinvalidIndex) in cartList.invalid"
              :key="cartListinvalidIndex"
            >
              <view
                @click="goGoodsCon(item)"
                class="item acea-row row-between-wrapper"
                v-if="item.productInfo"
              >
                <view class="invalid acea-row row-center-wrapper">失效</view>
                <view class="pictrue">
                  <image :src="item.productInfo.attrInfo.image" v-if="item.productInfo.attrInfo" />
                  <image :src="item.productInfo.image" v-else />
                </view>
                <view class="text acea-row row-column-between">
                  <view class="line1">{{ item.productInfo.storeName }}</view>
                  <view
                    class="infor line1"
                    v-if="item.productInfo.attrInfo"
                  >属性：{{ item.productInfo.attrInfo.sku }}</view>
                  <view class="acea-row row-between-wrapper">
                    <view class="end">该商品已下架</view>
                  </view>
                </view>
              </view>
            </view>
          </view>
        </view>
      </view>
      <!--购物车暂无商品-->
      <view class="noCart" v-if="cartList.valid.length === 0 && cartList.invalid.length === 0">
        <view class="pictrue">
          <image src="@/static/images/noCart.png" />
        </view>
        <Recommend></Recommend>
      </view>
      <view style="height:210rpx"></view>
      <view :class="['footer acea-row row-between-wrapper']" v-if="cartList.valid.length > 0">
        <view>
          <view class="select-btn">
            <view class="checkbox-wrapper">
              <!-- <label class="well-check">
              <input
                type="checkbox"
                name
                value
                :checked="isAllSelect && cartCount > 0"
                @click="allChecked"
              />
              <i class="icon"></i>
              <text class="checkAll">全选 ({{ cartCount }})</text>
              </label>-->

              <checkbox-group @change="allChecked">
                <label class="well-check">
                  <checkbox value="allSelect" :checked="isAllSelect && cartCount > 0"></checkbox>
                  <text class="checkAll">全选 ({{ cartCount }})</text>
                </label>
              </checkbox-group>
            </view>
          </view>
        </view>
        <view class="money acea-row row-middle" v-if="footerswitch === false">
          <text class="font-color-red">￥{{ countmoney }}</text>
          <view class="placeOrder bg-color-red" @click="placeOrder">立即下单</view>
        </view>
        <view class="button acea-row row-middle" v-else>
          <!-- <view class="bnt cart-color" @click="collectAll">收藏</view> -->
          <view class="bnt" @click="delgoods">删除</view>
        </view>
      </view>
    </view>
    <Authorization v-if="!$store.getters.token" />
  </view>
</template>
<script>
import Recommend from "@/components/Recommend";
import Authorization from "@/pages/authorization/index";
import { mapGetters } from "vuex";

import {
  getCartList,
  postCartDel,
  changeCartNum,
  getCartCount
} from "@/api/store";
import { postCollectAll } from "@/api/user";
import { mul, add } from "@/utils/bc";
import cookie from "@/utils/store/cookie";

const CHECKED_IDS = "cart_checked";

export default {
  name: "ShoppingCart",
  components: {
    Recommend,
    Authorization
  },
  props: {},
  data: function() {
    return {
      cartList: {
        invalid: [],
        valid: []
      },
      validList: [],
      isAllSelect: false,
      cartCount: 0,
      countmoney: 0,
      goodsHidden: true,
      footerswitch: false,
      count: 0,
      checkedIds: [],
      loaded: false
    };
  },
  computed: mapGetters(["userInfo", "token"]),

  //   watch: {
  //     $yroute(n) {
  //       if (n.name === "ShoppingCart") {
  //         this.carnum();
  //         this.countMoney();
  //         this.getCartList();
  //         this.gainCount();
  //         this.goodsHidden = true;
  //         this.footerswitch = false;
  //       }
  //     },
  //     cartList(list) {
  //       this.validList = list.valid;
  //     }
  //   },
  watch: {
    userInfo(user) {
      if (user.uid) {
        this.carnum();
        this.countMoney();
        this.getCartList();
        this.gainCount();
      }
    },
    token(token) {
      if (this.userInfo.uid) {
        this.carnum();
        this.countMoney();
        this.getCartList();
        this.gainCount();
      }
    },
    cartList(list) {
      this.validList = list.valid;
    }
  },
  onShow: function() {
    if (this.userInfo.uid) {
      this.carnum();
      this.countMoney();
      this.getCartList();
      this.gainCount();
    }
  },
  methods: {
    goGoodsCon(item) {
      this.$yrouter.push({
        path: "/pages/shop/GoodsCon/index",
        query: {
          id: item.productId
        }
      });
    },
    getCartList: function() {
      let that = this;
      getCartList().then(res => {
        that.cartList = res.data;
        let checkedIds = cookie.get(CHECKED_IDS) || [];
        if (!Array.isArray(checkedIds)) checkedIds = [];
        this.cartList.valid.forEach(cart => {
          if (checkedIds.indexOf(cart.id) !== -1) cart.checked = true;
        });
        if (checkedIds.length) {
          that.checkedIds = checkedIds;
          that.isAllSelect = checkedIds.length === this.cartList.valid.length;
          that.carnum();
          that.countMoney();
        }
        this.loaded = true;
      });
    },
    //删除商品；
    delgoods: function() {
      let that = this,
        id = [],
        valid = [],
        list = that.cartList.valid;
      list.forEach(function(val) {
        if (val.checked === true) {
          id.push(val.id);
        }
      });
      if (id.length === 0) {
        uni.showToast({
          title: "请选择产品",
          icon: "none",
          duration: 2000
        });
        return;
      }
      postCartDel(id).then(function() {
        list.forEach(function(val, i) {
          if (val.checked === false || val.checked === undefined)
            valid.push(list[i]);
        });
        that.$set(that.cartList, "valid", valid);
        that.carnum();
        that.countMoney();
        that.gainCount();
        that.getCartList();
      });
    },
    // //获取数量
    gainCount: function() {
      let that = this;
      getCartCount().then(res => {
        that.count = res.data.count;
      });
    },
    //清除失效产品；
    delInvalidGoods: function() {
      let that = this,
        id = [],
        list = that.cartList.invalid;
      list.forEach(function(val) {
        id.push(val.id);
      });
      postCartDel(id).then(function() {
        list.splice(0, list.length);
        that.gainCount();
        that.getCartList();
      });
    },
    //批量收藏;
    collectAll: function() {
      let that = this,
        data = {
          id: [],
          category: ""
        },
        list = that.cartList.valid;
      list.forEach(function(val) {
        if (val.checked === true) {
          data.id.push(val.product_id);
          data.category = val.type;
        }
      });
      if (data.id.length === 0) {
        uni.showToast({
          title: "请选择产品",
          icon: "none",
          duration: 2000
        });
        return;
      }
      postCollectAll(data).then(function() {
        uni.showToast({
          title: "收藏成功!",
          icon: "none",
          duration: 2000
        });
      });
    },
    //立即下单；
    placeOrder: function() {
      let that = this,
        list = that.cartList.valid,
        id = [];
      list.forEach(function(val) {
        if (val.checked === true) {
          id.push(val.id);
        }
      });
      if (id.length === 0) {
        uni.showToast({
          title: "请选择产品",
          icon: "none",
          duration: 2000
        });
        return;
      }
      this.$yrouter.push({
        path: "/pages/order/OrderSubmission/index",
        query: {
          id: id.join(",")
        }
      });
    },
    manage: function() {
      let that = this;
      that.footerswitch = !that.footerswitch;
    },
    goodsOpen: function() {
      let that = this;
      that.goodsHidden = !that.goodsHidden;
    },
    //加
    plus: function(index) {
      let that = this;
      let list = that.cartList.valid[index];
      list.cartNum++;
      if (list.attrInfo) {
        if (list.cartNum >= list.attrInfo.stock) {
          that.$set(list, "cart_num", list.attrInfo.stock);
        }
      } else {
        if (list.cartNum >= list.stock) {
          that.$set(list, "cart_num", list.stock);
        }
      }
      that.carnum();
      that.countMoney();
      that.syncCartNum(list);
    },
    //减
    reduce: function(index) {
      let that = this;
      let list = that.cartList.valid[index];
      if (list.cartNum <= 1) {
        uni.showToast({
          title: "已经是底线啦!",
          icon: "none",
          duration: 2000
        });
        return;
      }
      list.cartNum--;
      if (list.cartNum < 1) {
        that.$set(list, "cart_num", 1);
      }
      that.carnum();
      that.countMoney();
      that.syncCartNum(list);
    },
    syncCartNum(cart) {
      if (!cart.sync) {
        changeCartNum(cart.id, Math.max(cart.cartNum, 1) || 1)
          .then(res => {
            this.getCartList();
            this.gainCount();
          })
          .catch(error => {
            this.gainCount();
            uni.showToast({
              title: error.response.data.msg,
              icon: "none",
              duration: 2000
            });
          });
      }
    },
    //单选
    switchSelect: function(index) {
      let that = this,
        cart = that.cartList.valid[index],
        i = this.checkedIds.indexOf(cart.id);
      cart.checked = !cart.checked;

      if (i !== -1) this.checkedIds.splice(i, 1);
      if (cart.checked) {
        this.checkedIds.push(cart.id);
      }
      let len = that.cartList.valid.length;
      let selectnum = [];
      for (let i = 0; i < len; i++) {
        if (that.cartList.valid[i].checked === true) {
          selectnum.push(true);
        }
      }
      that.isAllSelect = selectnum.length === len;
      that.$set(that, "cartList", that.cartList);
      that.$set(that, "isAllSelect", that.isAllSelect);
      cookie.set(CHECKED_IDS, that.checkedIds);
      that.carnum();
      that.gainCount();
      that.countMoney();
    },
    //全选
    allChecked: function(e) {
      console.log(e);
      let that = this;
      let selectAllStatus = e.mp.detail.value[0] == "allSelect" ? true : false;
      console.log(selectAllStatus);
      // let selectAllStatus = that.isAllSelect;
      let checkedIds = [];
      // for (let i = 0; i < array.length; i++) {
      //   array[i].checked = selectAllStatus;
      //   checked.push()
      // }
      that.cartList.valid.forEach(cart => {
        cart.checked = selectAllStatus;
        if (selectAllStatus) {
          checkedIds.push(cart.id);
        }
      });
      let cartList = {
        ...that.cartList
      };
      that.cartList = [];
      that.cartList = cartList;
      console.log(this.cartList);
      this.$set(this, "cartList", this.cartList);
      this.$set(this, "isAllSelect", selectAllStatus);
      this.checkedIds = checkedIds;
      cookie.set(CHECKED_IDS, checkedIds);
      that.carnum();
      that.countMoney();
      this.$forceUpdate();
    },
    //数量
    carnum: function() {
      let that = this;
      var carnum = 0;
      var array = that.cartList.valid;
      for (let i = 0; i < array.length; i++) {
        if (array[i].checked === true) {
          carnum += parseInt(array[i].cartNum);
        }
      }
      that.$set(that, "cartCount", carnum);
    },
    //总共价钱；
    countMoney: function() {
      let that = this;
      let carmoney = 0;
      let array = that.cartList.valid;
      for (let i = 0; i < array.length; i++) {
        if (array[i].checked === true) {
          carmoney = add(carmoney, mul(array[i].cartNum, array[i].truePrice));
        }
      }
      that.countmoney = carmoney;
    }
  }
};
</script>