From 154834c2168f27cf9da4e0cf7fac395e1f8ed6f5 Mon Sep 17 00:00:00 2001
From: YeMingfei666 <1619116647@qq.com>
Date: Fri, 26 Sep 2025 19:54:58 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=9A=E5=91=98=E8=B4=AD=E4=B9=B0=E8=B0=83?=
 =?UTF-8?q?=E6=95=B4=EF=BC=8C=E4=BB=A3=E5=AE=A2=E4=B8=8B=E5=8D=95=E8=B0=83?=
 =?UTF-8?q?=E6=95=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 pages/product/index.vue |   2 +-
 pages/user/user.vue     |   4 +-
 user/vip/buy-vip.vue    |   4 +-
 utils/goods-utils.js    | 391 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 398 insertions(+), 3 deletions(-)
 create mode 100644 utils/goods-utils.js

diff --git a/pages/product/index.vue b/pages/product/index.vue
index b41b4df..6889bce 100644
--- a/pages/product/index.vue
+++ b/pages/product/index.vue
@@ -118,7 +118,7 @@
 										v-if="item.type == 'sku' || (item.type == 'package' && item.groupType == '1')"
 										@click.stop="clickspecifications(item, index, index1)"
 									>
-										<text class="t" v-if="item.groupType == '1'">选择套餐</text>
+										<text class="t no-wrap" v-if="item.groupType == '1'">选择套餐</text>
 										<text class="t" v-else>选规格</text>
 										<text class="dot num" v-if="item.cartNumber > 0">{{ ifcartNumber(item) < 99 ? ifcartNumber(item) : '99+' }}</text>
 									</view>
diff --git a/pages/user/user.vue b/pages/user/user.vue
index 3cdc530..51679f4 100644
--- a/pages/user/user.vue
+++ b/pages/user/user.vue
@@ -9,8 +9,10 @@
 					<image class="my_info_left_head" :src="userInfo.headImg" mode="aspectFill"></image>
 					<view class="name">{{userInfo.nickName}}</view>
 				</view>
-				<image class="my_info_right_qr" @click="clickEvent" src="/static/icon/code.png" mode="aspectFill">
+				<image class="my_info_right_qr" src="/static/icon/code.png" mode="aspectFill">
 				</image>
+				
+				
 				<!-- 		<image class="my_info_right_qr" @click="clickEvent" v-if="userInfo.isVip == 1 && ShopId"
 					:src="'https://czg-qr-order.oss-cn-beijing.aliyuncs.com/my/my_qRcode.png'" mode="aspectFill">
 				</image>
diff --git a/user/vip/buy-vip.vue b/user/vip/buy-vip.vue
index 2afabc1..350aa86 100644
--- a/user/vip/buy-vip.vue
+++ b/user/vip/buy-vip.vue
@@ -7,7 +7,9 @@
 					<up-avatar size="136rpx" shape="square" round="20rpx" :src="shopInfo.coverImg"></up-avatar>
 					<view class="u-p-l-20">
 						<view class="shop-name u-line-1">{{shopInfo.shopName||'店铺名称' }}</view>
-						<view class="no-buy">暂未开通</view>
+						<view class="u-flex">
+							<view class="no-buy">暂未开通</view>
+						</view>
 					</view>
 				</view>
 			</view>
diff --git a/utils/goods-utils.js b/utils/goods-utils.js
new file mode 100644
index 0000000..b8ea534
--- /dev/null
+++ b/utils/goods-utils.js
@@ -0,0 +1,391 @@
+import { BigNumber } from "bignumber.js";
+import _ from "lodash";
+
+/**
+ * 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
+ * @param user 用户信息
+ */
+export function returnCanDikouGoods(arr, user) {
+  return arr
+    .filter((v) => {
+      return v.is_temporary != 1 && v.is_gift != 1;
+    })
+    .filter((v) => {
+      return v.num > 0;
+    })
+    .sort((a, b) => {
+      return returnGoodsPrice(b, user) - returnGoodsPrice(a, user);
+    });
+}
+
+/**
+ * 返回商品单价
+ * @param goods 商品
+ * @param user 用户信息
+ */
+export 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;
+}
+
+/**
+ * 返回商品分组
+ * @param arr 商品列表
+ */
+export 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
+ */
+export 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";
+}
+
+/**
+ * 返回商品券抵扣后的商品列表
+ * @param canDikouGoodsArr 可抵扣商品列表
+ * @param selCoupon 已选择的优惠券列表
+ * @param user 用户信息
+ */
+export function returnCanDikouGoodsArr(canDikouGoodsArr, selCoupon, user) {
+  const goodsCouponGoods = selCoupon
+    .filter((v) => v.type == 2)
+    .reduce((prve, cur) => {
+      prve.push(...cur.discount.hasDiscountGoodsArr);
+      return prve;
+    }, []);
+  const arr = _.cloneDeep(canDikouGoodsArr)
+    .map((v) => {
+      const findCart = goodsCouponGoods.find((carts) => carts.id == v.id);
+      if (findCart) {
+        v.num -= findCart.num;
+      }
+      return v;
+    })
+    .filter((v) => v.num > 0);
+  return arr;
+}
+
+/**
+ * 判断优惠券是否可使用
+ *
+ * @param {Object} args - 函数参数集合
+ * @param {Array} args.canDikouGoodsArr - 可参与抵扣的商品列表，每个元素包含商品信息（productId、num等）
+ * @param {Object} args.coupon - 优惠券信息对象
+ * @param {boolean} args.coupon.use - 优惠券是否启用（true为启用，false为禁用）
+ * @param {Array} args.coupon.useFoods - 优惠券适用的商品ID列表（空数组表示适用全部商品）
+ * @param {number} args.coupon.fullAmount - 优惠券使用门槛金额
+ * @param {number} args.coupon.type - 优惠券类型（1:满减券, 2:商品券, 3:折扣券, 4:第二件半价券, 6:买一送一券）
+ * @param {number} args.goodsOrderPrice - 订单中所有商品的总金额（未筛选时的初始金额）
+ * @param {Object} args.user - 用户信息对象（用于计算商品价格，如会员价等）
+ * @param {Object} args.user - 用户信息对象（用于计算商品价格，如会员价等）
+ * @param {Object} args.selCoupon - 已经选择的优惠券信息对象
+ * @returns {boolean} - 优惠券是否可用（true可用，false不可用）
+ */
+export function returnCouponCanUse(args) {
+  let { canDikouGoodsArr, coupon, goodsOrderPrice, user, selCoupon } = args;
+  if (!coupon.use) {
+    return false;
+  }
+
+  canDikouGoodsArr = returnCanDikouGoodsArr(canDikouGoodsArr, selCoupon, user);
+  // 计算门槛金额
+  let fullAmount = goodsOrderPrice;
+  //是否抵扣全部商品
+  const isDikouAll = coupon.useFoods.length === 0;
+  let canCalcGoodsArr = [];
+  // 订单里参与门槛计算的商品
+  if (!isDikouAll) {
+    canCalcGoodsArr = canDikouGoodsArr.filter((v) => {
+      return coupon.useFoods.find((food) => food.id == v.productId);
+    });
+    fullAmount = canCalcGoodsArr.reduce((pre, cur) => {
+      return pre + returnGoodsPrice(cur, user) * cur.num;
+    }, 0);
+  }
+
+  //没有符合商品
+  if (!isDikouAll && canCalcGoodsArr.length == 0) {
+    return false;
+  }
+
+  //不满足门槛金额
+  if (fullAmount < coupon.fullAmount) {
+    console.log("不满足门槛金额");
+    return false;
+  }
+
+  if (coupon.type == 2) {
+    //商品券
+    return isDikouAll || canCalcGoodsArr.length > 0;
+  }
+  if (coupon.type == 1) {
+    //满减券
+    return fullAmount >= coupon.fullAmount;
+  }
+  if (coupon.type == 6) {
+    //买一送一券
+
+    let canUse = false;
+    if (isDikouAll) {
+      canUse = canDikouGoodsArr.some((v) => v.num >= 2);
+    }
+    if (canCalcGoodsArr.length > 0) {
+      canUse = canDikouGoodsArr
+        .filter((v) => {
+          return coupon.useFoods.find((food) => food.id == v.productId);
+        })
+        .some((v) => v.num >= 2);
+    }
+    return canUse;
+  }
+  if (coupon.type == 4) {
+    //第二件半价券
+    let canUse = false;
+    if (isDikouAll) {
+      canUse = canDikouGoodsArr.some((v) => v.num >= 2);
+    }
+    if (canCalcGoodsArr.length > 0) {
+      canUse = canDikouGoodsArr
+        .filter((v) => {
+          return coupon.useFoods.find((food) => food.id == v.productId);
+        })
+        .some((v) => v.num >= 2);
+    }
+    return canUse;
+  }
+  if (coupon.type == 3) {
+    //折扣券
+    return true;
+  }
+}
+
+/**
+ * 计算抵扣商品金额
+ * @param discountGoodsArr 可抵扣商品列表
+ * @param discountNum 抵扣数量
+ * @param user 用户信息
+ */
+export function calcDiscountGoodsArrPrice(discountGoodsArr, discountNum, user) {
+  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);
+    discountPrice += returnGoodsPrice(goods, user) * num;
+    hasCountNum += num;
+    hasDiscountGoodsArr.push({ ...goods, num });
+  }
+  return { discountPrice, hasDiscountGoodsArr };
+}
+
+/**
+ * 计算优惠券抵扣金额
+ * @param canDikouGoodsArr 可抵扣商品列表
+ * @param coupon 优惠券
+ * @param user 用户信息
+ * @param goodsOrderPrice   商品订单金额
+ * @param selCoupon 已选择的优惠券列表
+ */
+export function returnCouponDiscount(canDikouGoodsArr, coupon, user, goodsOrderPrice, selCoupon) {
+  canDikouGoodsArr = returnCanDikouGoodsArr(canDikouGoodsArr, selCoupon, user);
+  if (coupon.type == 2) {
+    return returnCouponProductDiscount(canDikouGoodsArr, coupon, user, goodsOrderPrice);
+  }
+  if (coupon.type == 6) {
+    return returnCouponBuyOneGiveOneDiscount(canDikouGoodsArr, coupon, user, goodsOrderPrice);
+  }
+  if (coupon.type == 4) {
+    return returnSecoendDiscount(canDikouGoodsArr, coupon, user, goodsOrderPrice);
+  }
+  if (coupon.type == 3) {
+    return returnCouponZhekouDiscount(canDikouGoodsArr, coupon, user, goodsOrderPrice, selCoupon);
+  }
+}
+
+/**
+ * 折扣券抵扣金额
+ * @param canDikouGoodsArr 可抵扣商品列表
+ * @param coupon 优惠券
+ * @param user 用户信息
+ * @param goodsOrderPrice   商品订单金额
+ * @param selCoupon 已选择的优惠券列表
+ *
+ */
+export function returnCouponZhekouDiscount(
+  canDikouGoodsArr,
+  coupon,
+  user,
+  goodsOrderPrice,
+  selCoupon
+) {
+  const { discountRate, maxDiscountAmount } = coupon;
+
+  const goodsCouponDiscount = selCoupon
+    .filter((v) => v.type == 2)
+    .reduce((prve, cur) => {
+      return prve + cur.discount.discountPrice;
+    }, 0);
+  goodsOrderPrice -= goodsCouponDiscount;
+
+  // 使用bignumber处理高精度计算
+  // 1. 计算折扣率（百分比转小数）：discountRate / 100
+  const discountRatio = new BigNumber(discountRate).dividedBy(100);
+  // 2. 计算优惠比例：1 - 折扣率（例如：8折的优惠比例是 1 - 0.8 = 0.2）
+  const discountAmountRatio = new BigNumber(1).minus(discountRatio);
+  // 3. 计算折扣金额：商品订单金额 × 优惠比例
+  let discountPrice = new BigNumber(goodsOrderPrice).times(discountAmountRatio).toNumber();
+  if (maxDiscountAmount != 0) {
+    discountPrice = discountPrice >= maxDiscountAmount ? maxDiscountAmount : discountPrice;
+  }
+
+  return {
+    discountPrice, // 折扣抵扣金额（即优惠的金额）
+    hasDiscountGoodsArr: [],
+  };
+}
+
+/**
+ * 商品券抵扣金额
+ * @param canDikouGoodsArr 可抵扣商品列表
+ * @param coupon 优惠券
+ * @param user 用户信息
+ */
+export function returnCouponProductDiscount(canDikouGoodsArr, coupon, user) {
+  const { useFoods, discountNum, useRule } = coupon;
+
+  //抵扣商品数组
+  let discountGoodsArr = [];
+
+  //抵扣全部商品
+  if (useFoods.length === 0) {
+    if (useRule == "price_asc") {
+      discountGoodsArr = canDikouGoodsArr
+        .slice(canDikouGoodsArr.length - discountNum, canDikouGoodsArr.length)
+        .reverse();
+    } else {
+      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, user);
+  console.log(result);
+  return result;
+}
+
+// 返回买一送一券抵扣详情
+/**
+ * @param canDikouGoodsArr 可抵扣商品列表
+ * @param coupon 优惠券
+ * @param user 用户信息
+ */
+function returnCouponBuyOneGiveOneDiscount(canDikouGoodsArr, coupon, user) {
+  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 {
+      discountGoods = canUseGoods.slice(0, 1);
+    }
+  } else {
+    //符合抵扣条件的商品
+    const canUseGoods1 = canUseGoods.filter((v) => useFoods.find((food) => food.id == v.productId));
+    console.log(canUseGoods1);
+    if (useRule == "price_asc") {
+      discountGoods = canUseGoods1[canUseGoods1.length - 1];
+    } else {
+      discountGoods = canUseGoods1.slice(0, 1);
+    }
+  }
+  console.log("discountGoods");
+  console.log(discountGoods);
+  const discountPrice = returnGoodsPrice(discountGoods, user);
+  const hasDiscountGoodsArr = [discountGoods];
+  return { discountPrice, hasDiscountGoodsArr };
+}
+
+/**
+ * 返回第二件半价券抵扣详情
+ * @param canDikouGoodsArr 可抵扣商品列表
+ * @param coupon 优惠券
+ * @param user 用户信息
+ */
+function returnSecoendDiscount(canDikouGoodsArr, coupon, user) {
+  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 {
+      discountGoods = canUseGoods.slice(0, 1);
+    }
+  } else {
+    //符合抵扣条件的商品
+    const canUseGoods1 = canUseGoods.filter((v) => useFoods.find((food) => food.id == v.productId));
+    console.log(canUseGoods1);
+    if (useRule == "price_asc") {
+      discountGoods = canUseGoods1[canUseGoods1.length - 1];
+    } else {
+      discountGoods = canUseGoods1.slice(0, 1);
+    }
+  }
+  const discountPrice = returnGoodsPrice(discountGoods, user);
+  const hasDiscountGoodsArr = [discountGoods];
+  //返回半价价格
+  return {
+    discountPrice: new BigNumber(discountPrice).dividedBy(2).toNumber(),
+    hasDiscountGoodsArr,
+  };
+}