fix: 修改订单计算逻辑

src/store/modules/carts.ts

@@ -231,9 +231,13 @@ export const useCartsStore = defineStore("carts", () => {
     return [];
   });
 
+  const coupons = ref<BackendCoupon[]>([]);
+  function setCoupons(cps: BackendCoupon[]) {
+    coupons.value = cps;
+  }
   // 优惠券列表
   const backendCoupons = computed<BackendCoupon[]>(() => {
-    return [];
+    return coupons.value;
   });
 
   // 商品加入购物车顺序
@@ -759,7 +763,8 @@ export const useCartsStore = defineStore("carts", () => {
     clearMerchantReduction,
     seatFeeConfig,
     pointDeductionRule,
-    userPoints
+    userPoints,
+    setCoupons
   };
 });
 

src/utils/goods.ts

@@ -1164,6 +1164,7 @@ function getCouponStrategy(couponType: CouponType): CouponCalculationStrategy {
   }
 }
 
+
 /**
  * 计算优惠券抵扣金额（处理互斥逻辑，选择最优优惠券，按商品ID排除，新增细分统计）
  * @param backendCoupons 后端优惠券列表

src/views/tool/Instead/components/order.vue

@@ -110,12 +110,7 @@
               </el-table-column>
               <el-table-column prop="discountAmount" label="抵扣">
                 <template v-slot="scope">
-                  <span class="color-red" v-if="scope.row.type == 1">
+                  <span class="color-red">￥{{ scope.row.discountAmount }}</span>
-                    ￥{{ scope.row.discountAmount }}
-                  </span>
-                  <span class="color-red" v-if="scope.row.type == 2">
-                    ￥{{ returnProDiscount(scope.row, scope.row.index) }}
-                  </span>
                 </template>
               </el-table-column>
               <el-table-column prop="useRestrictions" label="操作">
@@ -274,34 +269,28 @@ let $goodsPayPriceMap = {};
 const refCoupon = ref();
 let quansSelArr = ref([]);
 function openCoupon() {
-  refCoupon.value.open(carts.goodsTotal, props.orderInfo);
+  //商品订单金额
+  const price = new BigNumber(carts.orderCostSummary.goodsOriginalAmount)
+    .minus(carts.orderCostSummary.goodsDiscountAmount)
+    .toFixed(2);
+  refCoupon.value.open(price, props.orderInfo);
 }
-//返回商品券抵扣金额
+
-function returnProDiscount(row) {
+function refCouponConfirm(e, goodsList) {
-  //相同商品抵扣券数组
+  e = e.map((v) => {
-  const arr = quansSelArr.value.filter((v) => v.type == 2 && v.proId == row.proId);
+    return {
-  console.log(arr);
+      ...v,
-  const index = arr.findIndex((v) => v.id == row.id);
+      couponType: v.type,
-  const item = goodsArr.find((v) => v.productId == row.proId);
+      title: v.name,
-  if (index != -1) {
+    };
-    const n = quanUtil.returnProductCoupAllPrice(
+  });
-      $goodsPayPriceMap[row.proId],
-      index,
-      row.num,
-      props.user.id && props.user.isVip
-    );
-    return n.toFixed(2);
-  } else {
-    return 0;
-  }
-}
-function refCouponConfirm(e, goodsPayPriceMap, goodsList) {
   goodsArr = goodsList;
   usePointsNumber.value = 0;
   pointsDiscountAmount.value = 0;
   score.sel = -1;
+  console.log("refCouponConfirm", e);
   quansSelArr.value = e;
-  $goodsPayPriceMap = goodsPayPriceMap;
+  carts.setCoupons(e);
   checkOrderPay.discountAmount = 0;
   checkOrderPay.discount = 0;
   score.sel = -1;

src/views/tool/Instead/components/popup-coupon.vue

@@ -4,27 +4,22 @@
       <div class="">
         <el-tabs v-model="activeName" @tab-click="tabClick">
           <el-tab-pane label="优惠券(单选)" name="youhui">
-            <el-table
+            <el-table ref="refTable" empty-text="无可用优惠券" :data="quans.coupon">
-              ref="refTable"
-              empty-text="无可用优惠券"
-              :data="quans.fullReductionCoupon"
-              @cell-click="fullReductionCouponClick"
-            >
               <el-table-column type="index" label="">
                 <template v-slot="scope">
                   <el-checkbox
-                    @change="fullReductionCouponClick(scope.row)"
+                    @change="couponClick($event, scope.row)"
-                    :model-value="scope.row.id == fullReductionCouponSel.id"
+                    :model-value="scope.row.id == couponSel.id"
                   ></el-checkbox>
                 </template>
               </el-table-column>
               <el-table-column type="index" label="#"></el-table-column>
               <el-table-column prop="name" label="券名称"></el-table-column>
-              <!-- <el-table-column label="券类型" width="80">
+              <el-table-column label="券类型" width="80">
                 <template v-slot="scope">
-                  {{ scope.row.type == 1 ? "优惠券" : "商品券" }}
+                  {{ returnCoupType(scope.row) }}
                 </template>
-              </el-table-column> -->
+              </el-table-column>
               <el-table-column prop="discountAmount" label="抵扣">
                 <template v-slot="scope">
                   <span class="color-red">￥{{ scope.row.discountAmount }}</span>
@@ -55,7 +50,7 @@
                 <template v-slot="scope">
                   <el-checkbox
                     @change="productCouponClick($event, scope.row)"
-                    v-model="scope.row.checked"
+                    :model-value="goodsCouponSel.id == scope.row.id"
                   ></el-checkbox>
                 </template>
               </el-table-column>
@@ -64,7 +59,7 @@
 
               <el-table-column label="商品信息" width="220">
                 <template v-slot="scope">
-                  <div class="u-flex">
+                  <div class="u-flex" v-if="scope.row.useFoods.length">
                     <div class="u-flex">
                       <el-image
                         :src="scope.row.productImg"
@@ -74,30 +69,30 @@
                       ></el-image>
                     </div>
                     <div class="u-p-l-10">
-                      <div class="">{{ scope.row.productName }}</div>
+                      <!-- <div class="">{{ scope.row.productName }}</div> -->
-                      <div class="">x{{ scope.row.num || 1 }}</div>
+                      <div class="">x{{ scope.row.discountNum || 1 }}</div>
                     </div>
                   </div>
+                  <div class="u-flex" v-else>任意商品 x{{ scope.row.discountNum || 1 }}</div>
+                </template>
+              </el-table-column>
+              <el-table-column prop="discountAmount" label="抵扣">
+                <template v-slot="scope">
+                  <span class="color-red">￥{{ scope.row.discountAmount }}</span>
+                </template>
+              </el-table-column>
+              <el-table-column prop="discountAmount" label="限制" width="180">
+                <template v-slot="scope">
+                  <div class="u-flex">
+                    <span>支付满</span>
+                    <span class="color-red no-wrap">
+                      {{ scope.row.fullAmount }}
+                    </span>
+                    <span>元可用</span>
+                  </div>
                 </template>
               </el-table-column>
-              <!-- <el-table-column prop="discountAmount" label="抵扣">
-                <template v-slot="scope">
-                  <span class="color-red">
-                    ￥{{ scope.row.discountAmount }}
-                  </span>
-                </template>
-              </el-table-column> -->
-              <!-- <el-table-column label="券类型">
-                <template v-slot="scope">
-                  {{ scope.row.type == 1 ? "优惠券" : "商品券" }}
-                </template>
-              </el-table-column> -->
               <el-table-column prop="useRestrictions" label="描述"></el-table-column>
-              <!-- <el-table-column prop="useRestrictions" label="是否可用">
-                <template v-slot="scope">
-                  {{ scope.row.use ? "可以" : "不可用" }}
-                </template>
-              </el-table-column> -->
             </el-table>
           </el-tab-pane>
         </el-tabs>
@@ -108,12 +103,13 @@
             <el-table-column prop="name" label="券名称"></el-table-column>
             <el-table-column label="券类型" width="80">
               <template v-slot="scope">
-                {{ scope.row.type == 1 ? "优惠券" : "商品券" }}
+                {{ returnCoupType(scope.row) }}
               </template>
             </el-table-column>
             <el-table-column label="商品信息" width="120">
               <template v-slot="scope">
                 <div class="u-flex" v-if="scope.row.type == 2">
+                  <div v-if="scope.row.useFoods.length">
                     <div class="u-flex">
                       <el-image
                         :src="scope.row.productImg"
@@ -123,19 +119,16 @@
                     </div>
                     <div class="u-p-l-10">
                       <div class="">{{ scope.row.productName }}</div>
-                    <div class="">x{{ scope.row.num || 1 }}</div>
+                      <div class="">x{{ scope.row.discountNum || 1 }}</div>
                     </div>
                   </div>
+                  <div v-else>任意商品 x{{ scope.row.discountNum || 1 }}</div>
+                </div>
               </template>
             </el-table-column>
             <el-table-column prop="discountAmount" label="抵扣">
               <template v-slot="scope">
-                <span class="color-red" v-if="scope.row.type == 1">
+                <span class="color-red">￥{{ scope.row.discountAmount }}</span>
-                  ￥{{ scope.row.discountAmount }}
-                </span>
-                <span class="color-red" v-if="scope.row.type == 2">
-                  ￥{{ returnProDiscount(scope.row, scope.row.index) }}
-                </span>
               </template>
             </el-table-column>
             <el-table-column prop="useRestrictions" label="描述"></el-table-column>
@@ -173,6 +166,8 @@
 </template>
 <script setup>
 import couponApi from "@/api/account/coupon";
+import { OrderPriceCalculator } from "@/utils/goods";
+
 import { ElMessageBox } from "element-plus";
 import * as quanUtil from "../quan_util.js";
 const props = defineProps({
@@ -197,17 +192,19 @@ function tabClick() {}
 
 const state = reactive({
   discount: 1,
-  fullReductionCouponSel: {
+  couponSel: {
+    id: "",
+  },
+  goodsCouponSel: {
     id: "",
   },
-  quansSelArr: [],
   quans: {
-    fullReductionCoupon: [],
+    coupon: [],
     productCoupon: [],
   },
   currentRow: null,
   multipleSelection: null,
-  fullReductionCouponSelId: "",
+  couponSelId: "",
   activeName: "youhui",
   form: {},
   show: false,
@@ -216,8 +213,8 @@ const state = reactive({
 
 const {
   discount,
-  fullReductionCouponSel,
+  couponSel,
-  quansSelArr,
+  goodsCouponSel,
   quans,
   currentRow,
   multipleSelection,
@@ -226,214 +223,326 @@ const {
   show,
   isSetProductCoup,
 } = toRefs(state);
-
+const quansSelArr = computed(() => {
+  return [couponSel.value, goodsCouponSel.value].filter((v) => v.id);
+});
 const refTable = ref();
 const refTable1 = ref();
 
 let orderPrice = ref(0);
-let $originFullReductionCoupon = [];
 //可以抵扣的商品列表
 let canDikouGoodsArr = [];
-//商品数量从0到n每一个对应的价格
+let goodsGroupMap = {};
-let $goodsPayPriceMap = {};
 let goodsArr = [];
-
+/**
+ * 返回可以抵扣优惠券的商品列表,过滤掉赠品、临时商品,价格从高到低排序
+ * @param arr 商品列表
+ */
+function returnCanDikouGoods(arr) {
+  return arr
+    .filter((v) => {
+      return v.is_temporary != 1 && v.is_gift != 1;
+    })
+    .sort((a, b) => {
+      return returnGoodsPrice(b, props.user) - returnGoodsPrice(a, props.user);
+    });
+}
+/**
+ * 返回商品分组
+ * @param arr 商品列表
+ */
+function returnGoodsGroupMap(arr) {
+  let map = {};
+  arr.forEach((v) => {
+    const key = v.productId + "_" + v.skuId;
+    if (!map[key]) {
+      map[key] = [];
+    }
+    map[key].push(v);
+  });
+  return map;
+}
+/**
+ * 优惠券类型：1-满减券，2-商品兑换券，3-折扣券，4-第二件半价券，5-消费送券，6-买一送一券，7-固定价格券，8-免配送费券
+ * @param coupon
+ */
+function returnCoupType(coupon) {
+  const couponTypes = {
+    1: "满减券",
+    2: "商品券",
+    3: "折扣券",
+    4: "第二件半价券",
+    5: "消费送券",
+    6: "买一送一券",
+    7: "固定价格券",
+    8: "免配送费券",
+  };
+  return couponTypes[coupon.type] || "未知类型";
+}
 function open(money, orderInfo) {
   let arr = [];
   for (let i in orderInfo.detailMap) {
     arr.push(...orderInfo.detailMap[i]);
   }
   goodsArr = arr;
-  $goodsPayPriceMap = quanUtil.returnGoodsPayPriceMap(goodsArr || []);
+  canDikouGoodsArr = returnCanDikouGoods(arr);
-  canDikouGoodsArr = quanUtil.returnNewGoodsList(goodsArr);
+  goodsGroupMap = returnGoodsGroupMap(canDikouGoodsArr);
-  console.log(canDikouGoodsArr);
+  console.log("canDikouGoodsArr", canDikouGoodsArr);
+  console.log("goodsGroupMap", goodsGroupMap);
   getcoup();
   orderPrice.value = money;
   show.value = true;
 }
 
+/**
+ * 判断该商品券是否可用
+ * @param canDikouGoodsArr 可抵扣商品列表
+ * @param coupon 优惠券
+ * @param goodsOrderPrice   商品订单金额
+ */
+function canUseGoodsCoupon(canDikouGoodsArr, coupon, goodsOrderPrice) {
+  //是否抵扣全部商品
+  const isDikouAll = coupon.useFoods.length === 0;
+  //是否包含抵扣商品
+  const isDikou = coupon.useFoods.some((v) =>
+    canDikouGoodsArr.some((goods) => goods.productId == v.id)
+  );
+  return (
+    coupon.type == 2 &&
+    (isDikouAll || isDikou) &&
+    coupon.use &&
+    goodsOrderPrice >= coupon.fullAmount
+  );
+}
+
+/**
+ * 判断该买一送一券是否可用
+ * @param canDikouGoodsArr 可抵扣商品列表
+ * @param coupon 优惠券
+ * @param goodsOrderPrice   商品订单金额
+ */
+function canUseBuyOneGiveOne(canDikouGoodsArr, coupon, goodsOrderPrice) {
+  //是否抵扣全部商品
+  const isDikouAll = coupon.useFoods.length === 0;
+  //是否包含抵扣商品
+  const isDikou = coupon.useFoods.some((v) =>
+    canDikouGoodsArr.some((goods) => goods.productId == v.id)
+  );
+  let canUse = false;
+  if (isDikouAll) {
+    canUse = canDikouGoodsArr.some((v) => v.num >= 2);
+  }
+  if (isDikou) {
+    canUse = canDikouGoodsArr
+      .filter((v) => {
+        return coupon.useFoods.find((food) => food.id == v.productId);
+      })
+      .some((v) => v.num >= 2);
+  }
+  return coupon.type == 6 && canUse && coupon.use && goodsOrderPrice >= coupon.fullAmount;
+}
+
+/**
+ * 判断该券是否可用
+ * @param canDikouGoodsArr 可抵扣商品列表
+ * @param coupon 优惠券
+ * @param goodsOrderPrice   商品订单金额
+ */
+function juageCouponCanUse(canDikouGoodsArr, coupon, goodsOrderPrice) {
+  if (coupon.type == 2) {
+    //商品券
+    return canUseGoodsCoupon(canDikouGoodsArr, coupon, goodsOrderPrice);
+  }
+  if (coupon.type == 1) {
+    //满减券
+    return coupon.use && goodsOrderPrice >= coupon.fullAmount;
+  }
+  if (coupon.type == 6) {
+    //买一送一券
+    return (
+      coupon.use &&
+      goodsOrderPrice >= coupon.fullAmount &&
+      canUseBuyOneGiveOne(canDikouGoodsArr, coupon, goodsOrderPrice)
+    );
+  }
+}
+
 async function getcoup() {
   const res = await couponApi.findCoupon({ shopUserId: props.user.id });
   console.log(res);
-  quans.value.fullReductionCoupon = res.filter(
+  //非商品券
-    (v) => v.type == 1 && orderPrice.value * 1 >= v.fullAmount * 1
+  quans.value.coupon = res
-  );
+    .filter((v) => v.type != 2)
+    .filter((coupon) => {
+      return juageCouponCanUse(canDikouGoodsArr, coupon, orderPrice.value);
+    })
+    .map((v) => {
+      const discount = returnCouponDiscount(v);
+      return {
+        ...v,
+        discount,
+        discountAmount: discount.discountPrice || v.discountAmount,
+      };
+    });
   quans.value.productCoupon = res
-    .filter((v) => {
+    .filter((v) => v.type == 2)
-      //是否抵扣全部商品
+    .filter((coupon) => {
-      const isDikouAll = v.useFoods.length === 0;
+      return juageCouponCanUse(canDikouGoodsArr, coupon, orderPrice.value);
-      //是否包含抵扣商品
-      const isDikou = v.useFoods.some((v) => v.id == goods.value.id);
-      return v.type == 2 && (isDikouAll || isDikou);
     })
     .map((v) => {
       const findGoods = goodsArr.find((goods) => goods.productId == v.proId);
+      const discount = returnCouponDiscount(v);
       return {
         ...v,
         productImg: findGoods ? findGoods.productImg : "",
         productName: findGoods ? findGoods.productName : "",
+        discount,
+        discountAmount: discount.discountPrice,
       };
     });
 }
-function fullReductionCouponClick(row) {
+function couponClick(checked, row) {
-  if (row.id == fullReductionCouponSel.value.id) {
+  couponSel.value = checked ? row : { id: "" };
-    fullReductionCouponSel.value = { id: "" };
-    quansSelArr.value.splice(0, 1);
-    return;
-  }
-  const dikouQuan = quansSelArr.value[0];
-  fullReductionCouponSel.value = row;
-  if (dikouQuan && dikouQuan.type == 1) {
-    quansSelArr.value[0] = row;
-  } else {
-    quansSelArr.value.unshift(row);
-  }
-  if (!fullReductionCouponSel.value.id) {
-    return;
-  }
 }
 const AllCouponPrice = computed(() => {
-  return quanUtil.returnCouponAllPrice(quansSelArr.value, canDikouGoodsArr, props.user);
+  return quansSelArr.value.reduce((pre, cur) => pre + cur.discountAmount, 0);
 });
 
 const payPrice = computed(() => {
   return (orderPrice.value - AllCouponPrice.value).toFixed(2);
 });
 function productCouponClick(checked, item) {
-  console.log(checked);
+  goodsCouponSel.value = checked ? item : { id: "" };
-  if (!item.use) {
-    return;
-  }
-  const hasSelNum = quansSelArr.value
-    .filter((v) => v.type == 2 && v.proId == item.proId)
-    .reduce((a, b) => {
-      return a + (b.num || 1);
-    }, 0);
-  console.log($goodsPayPriceMap[item.proId]);
-  const maxSelNum = $goodsPayPriceMap[item.proId].length;
-  const coupMaxUseNum = Math.min(item.num || 1, maxSelNum - hasSelNum);
-  const canUseNum = Math.min(maxSelNum, coupMaxUseNum);
-  console.log("maxSelNum", maxSelNum);
-  console.log("coupMaxUseNum", coupMaxUseNum);
-  console.log("canUseNum", canUseNum);
-  if (checked && canUseNum <= 0) {
-    ElMessage.error("购物车该商品券可使用最大数量为" + maxSelNum);
-    setTimeout(() => {
-      item.checked = !checked;
-    }, 100);
-    return;
 }
 
-  if (fullReductionCouponSel.value.id && !item.checked) {
+/**
-    const goodsQuan = quans.value.productCoupon.filter((v) => v.checked);
+ * 计算抵扣商品金额
-    const fullReductionCoupon = fullReductionCouponSel.value.id
+ */
-      ? [fullReductionCouponSel.value]
+function calcDiscountGoodsArrPrice(discountGoodsArr, discountNum) {
-      : [];
+  let hasCountNum = 0;
+  let discountPrice = 0;
+  let hasDiscountGoodsArr = [];
+  for (let i = 0; i < discountGoodsArr.length; i++) {
+    if (hasCountNum >= discountNum) {
+      break;
+    }
+    const goods = discountGoodsArr[i];
+    const shengyuNum = discountNum - hasCountNum;
+    const num = Math.min(goods.num, shengyuNum);
+    console.log("calcDiscountGoodsArrPrice");
+    console.log(goods);
+    discountPrice += returnGoodsPrice(goods, props.user) * num;
+    hasCountNum += num;
+    hasDiscountGoodsArr.push({ ...goods, num });
+  }
+  return { discountPrice, hasDiscountGoodsArr };
+}
 
-    let coupArr = [...goodsQuan, { ...item, num: canUseNum }];
+/**
-    const payPrice =
+ *
-      orderPrice.value - quanUtil.returnCouponAllPrice(coupArr, canDikouGoodsArr, props.user);
+ */
-    console.log(payPrice);
+function returnCouponDiscount(coupon) {
-    if (payPrice <= 0) {
+  if (coupon.type == 2) {
-      return ElMessageBox.confirm(
+    return returnCouponProductDiscount(coupon);
-        "选择该商品券后支付金额将为0，继续选择将取消选择的满减券",
-        "提示",
-        {
-          confirmButtonText: "继续选择",
-          cancelButtonText: "取消",
-          type: "warning",
   }
-      )
+  if (coupon.type == 6) {
-        .then(() => {
+    return returnCouponBuyOneGiveOneDiscount(coupon);
-          fullReductionCouponSel.value = {
-            id: "",
-          };
-          quansSelArr.value.splice(0, 1);
-        })
-        .catch(() => {});
-    }
-    if (fullReductionCouponSel.value.fullAmount > payPrice) {
-      ElMessageBox.confirm(
-        "选择该商品券后将不满足选择抵扣券的最低满减需求，继续选择将取消选择的满减券",
-        "提示",
-        {
-          confirmButtonText: "继续选择",
-          cancelButtonText: "取消",
-          type: "warning",
-        }
-      )
-        .then(() => {
-          fullReductionCouponSel.value = {
-            id: "",
-          };
-        })
-        .catch(() => {
-          item.checked = false;
-          const index = quansSelArr.value.findIndex((v) => v.id == item.id);
-          quansSelArr.value.splice(index, 1);
-        });
   }
 }
-  item.checked = checked;
+
-  if (!item.checked) {
+// 返回买一送一券抵扣详情
-    const index = quansSelArr.value.findIndex((v) => v.id == item.id);
+function returnCouponBuyOneGiveOneDiscount(coupon) {
-    quansSelArr.value.splice(index, 1);
+  const { useFoods, useRule } = coupon;
+  //抵扣商品
+  let discountGoods = undefined;
+  //符合买一送一条件的商品
+  const canUseGoods = canDikouGoodsArr.filter((v) => v.num >= 2);
+  //抵扣全部商品
+  if (useFoods.length === 0) {
+    if (useRule == "price_asc") {
+      discountGoods = canUseGoods[canUseGoods.length - 1];
     } else {
-    quansSelArr.value.push({ ...item, num: canUseNum });
+      discountGoods = canUseGoods.slice(0, 1);
     }
-  const CheckedArr = quans.value.productCoupon.filter((v) => v.checked);
+  } else {
-  if (CheckedArr.length <= 0) {
+    //符合抵扣条件的商品
-    return quans.value.productCoupon.map((v) => {
+    const canUseGoods1 = canUseGoods.filter((v) => useFoods.find((food) => food.id == v.productId));
-      v.use = true;
+    console.log(canUseGoods1);
-    });
+    if (useRule == "price_asc") {
+      discountGoods = canUseGoods1[canUseGoods1.length - 1];
+    } else {
+      discountGoods = canUseGoods1.slice(0, 1);
     }
-  const noCheckedArr = quans.value.productCoupon.filter((v) => !v.checked);
-  noCheckedArr.map((v) => {
-    v.use = quanUtil.returnCoupCanUse(canDikouGoodsArr, v, CheckedArr);
-  });
   }
+  console.log("discountGoods");
+  console.log(discountGoods);
+  const discountPrice = returnGoodsPrice(discountGoods, props.user);
+  const hasDiscountGoodsArr = [discountGoods];
+  return { discountPrice, hasDiscountGoodsArr };
+}
+
+// 返回商品单价
+function returnGoodsPrice(goods, user) {
+  if (goods.discount_sale_amount * 1 > 0) {
+    return goods.discount_sale_amount;
+  }
+  if (user.isVip && goods.memberPrice * 1 <= goods.salePrice * 1 && goods.memberPrice * 1 > 0) {
+    return goods.memberPrice;
+  }
+  return goods.salePrice;
+}
+
 //返回商品券抵扣金额
-function returnProDiscount(row) {
+function returnCouponProductDiscount(coupon) {
-  //相同商品抵扣券数组
+  const { useFoods, discountNum, useRule } = coupon;
-  const arr = quansSelArr.value.filter((v) => v.type == 2 && v.proId == row.proId);
+
-  const index = arr.findIndex((v) => v.id == row.id);
+  //抵扣商品数组
-  const item = goodsArr.find((v) => v.productId == row.proId);
+  let discountGoodsArr = [];
-  if (index != -1) {
+
-    const n = quanUtil.returnProductCoupAllPrice(
+  //抵扣全部商品
-      $goodsPayPriceMap[row.proId],
+  if (useFoods.length === 0) {
-      index,
+    if (useRule == "price_asc") {
-      row.num,
+      discountGoodsArr = canDikouGoodsArr
-      props.user.id && props.user.isVip
+        .slice(canDikouGoodsArr.length - discountNum, canDikouGoodsArr.length)
-    );
+        .reverse();
-    return n.toFixed(2);
     } else {
-    return 0;
+      discountGoodsArr = canDikouGoodsArr.slice(0, discountNum);
     }
+  } else {
+    //抵扣选中商品
+    const discountSelGoodsArr = canDikouGoodsArr.filter((v) =>
+      useFoods.find((food) => food.id == v.productId)
+    );
+    if (useRule == "price_asc") {
+      discountGoodsArr = discountSelGoodsArr
+        .slice(discountSelGoodsArr.length - discountNum, discountSelGoodsArr.length)
+        .reverse();
+    } else {
+      discountGoodsArr = discountSelGoodsArr.slice(0, discountNum);
+    }
+  }
+  const result = calcDiscountGoodsArrPrice(discountGoodsArr, discountNum);
+  console.log(result);
+  return result;
 }
 //删除选中的优惠券
 function delQuan(row) {
-  const index = quansSelArr.value.findIndex((item) => item.id == row.id);
+  if (row.type == 2) {
-  if (row.type == 2 && index != -1) {
+    goodsCouponSel.value = { id: "" };
-    quansSelArr.value.splice(index, 1);
+    return;
-    const proIndex = quans.value.productCoupon.findIndex((v) => v.id == row.id);
-    quans.value.productCoupon[proIndex].checked = false;
-  }
-  if (row.type == 1 && index != -1) {
-    fullReductionCouponSel.value = { id: "" };
-    quansSelArr.value.splice(0, 1);
   }
+  couponSel.value = { id: "" };
 }
 function close() {
   show.value = false;
 }
 const emits = defineEmits(["confirm"]);
 function reset() {
-  quansSelArr.value = [];
+  couponSel.value = { id: "" };
-  fullReductionCouponSel.value = { id: "" };
+  goodsCouponSel.value = { id: "" };
-  quans.value.productCoupon = [];
 }
 function confirm() {
-  emits("confirm", [...quansSelArr.value], $goodsPayPriceMap, goodsArr);
+  emits("confirm", [...quansSelArr.value], goodsArr);
   close();
 }
 defineExpose({