diff --git a/app/common/repositories/store/order/StoreOrderCreateRepository.php b/app/common/repositories/store/order/StoreOrderCreateRepository.php
index b9f05d43..9d0dbe6e 100644
--- a/app/common/repositories/store/order/StoreOrderCreateRepository.php
+++ b/app/common/repositories/store/order/StoreOrderCreateRepository.php
@@ -131,10 +131,10 @@ class StoreOrderCreateRepository extends StoreOrderRepository
         $noDeliver = false;
         $presellType = 0;
         $fn = [];
-        if(in_array($source,[0,2,103])){
-            $enabledPlatformCoupon=true;
-        }else{
-            $enabledPlatformCoupon=false;
+        if (in_array($source, [0, 2, 103])) {
+            $enabledPlatformCoupon = true;
+        } else {
+            $enabledPlatformCoupon = false;
         }
         $order_total_postage = 0;
         $platformCoupon = [];
@@ -483,6 +483,161 @@ class StoreOrderCreateRepository extends StoreOrderRepository
         $usePlatformCouponId = 0;
         $total_platform_coupon_price = 0;
 
+        //计算平台券优惠金额
+        //        if ($total_true_price > 0) {
+        $StoreCouponUser = app()->make(StoreCouponUserRepository::class);
+        $platformCoupon = $StoreCouponUser->validUserPlatformCoupon($uid);
+        if ($enabledPlatformCoupon && count($platformCoupon)) {
+
+            $catePriceLst = [];
+            $storePriceLst = [];
+            $_cartNum = 0;
+
+            foreach ($merchantCartList as &$merchantCart) {
+                if ($merchantCart['order']['true_price'] <= 0) continue;
+                foreach ($merchantCart['list'] as &$cart) {
+                    $_cartNum++;
+                    if ($cart['product']['cate_id']) {
+                        if (!isset($catePriceLst[$cart['product']['cate_id']])) {
+                            $catePriceLst[$cart['product']['cate_id']] = ['price' => 0, 'cart' => []];
+                        }
+                        $catePriceLst[$cart['product']['cate_id']]['price'] = bcadd($catePriceLst[$cart['product']['cate_id']]['price'], $cart['true_price']);
+                        $catePriceLst[$cart['product']['cate_id']]['cart'][] = &$cart;
+                    }
+                }
+                unset($cart);
+                $storePriceLst[$merchantCart['mer_id']] = [
+                    'price' => $merchantCart['order']['true_price'],
+                    'num' => count($merchantCart['list'])
+                ];
+            }
+            unset($merchantCart);
+            $flag = false;
+            $platformCouponRate = null;
+
+            foreach ($platformCoupon as &$coupon) {
+                $coupon['checked'] = false;
+                //通用券
+                if ($coupon['coupon']['type'] === StoreCouponRepository::TYPE_PLATFORM_ALL) {
+                    $coupon['disabled'] = $total_true_price <= 0 || $coupon['use_min_price'] > $total_true_price;
+                    if (!$platformCouponRate && !$coupon['disabled'] && !$flag && ((!$usePlatformCouponId && !$usePlatformCouponFlag) || $usePlatformCouponId == $coupon['coupon_user_id'])) {
+                        $platformCouponRate = [
+                            'id' => $coupon['coupon_user_id'],
+                            'type' => $coupon['coupon']['type'],
+                            'price' => $total_true_price,
+                            'coupon_price' => $coupon['coupon_price'],
+                            'use_count' => $_cartNum,
+                            'check' => function ($cart) {
+                                return true;
+                            }
+                        ];
+                        $coupon['checked'] = true;
+                        $flag = true;
+                    }
+                    //品类券
+                } else if ($coupon['coupon']['type'] === StoreCouponRepository::TYPE_PLATFORM_CATE) {
+                    $_price = 0;
+                    $_use_count = 0;
+                    $cateIds = $coupon['product']->column('product_id');
+                    $allCateIds = array_unique(array_merge(app()->make(StoreCategoryRepository::class)->allChildren($cateIds), $cateIds));
+                    $flag2 = true;
+                    foreach ($allCateIds as $cateId) {
+                        if (isset($catePriceLst[$cateId])) {
+                            $_price = bcadd($catePriceLst[$cateId]['price'], $_price, 2);
+                            $_use_count += count($catePriceLst[$cateId]['cart']);
+                            $flag2 = false;
+                        }
+                    }
+                    $coupon['disabled'] = $flag2 || $coupon['use_min_price'] > $_price;
+                    //品类券可用
+                    if (!$platformCouponRate && !$coupon['disabled'] && !$flag && !$flag2 && ((!$usePlatformCouponId && !$usePlatformCouponFlag) || $usePlatformCouponId == $coupon['coupon_user_id'])) {
+                        $platformCouponRate = [
+                            'id' => $coupon['coupon_user_id'],
+                            'type' => $coupon['coupon']['type'],
+                            'price' => $_price,
+                            'use_cate' => $allCateIds,
+                            'coupon_price' => $coupon['coupon_price'],
+                            'use_count' => $_use_count,
+                            'check' => function ($cart) use ($allCateIds) {
+                                return in_array($cart['product']['cate_id'], $allCateIds);
+                            }
+                        ];
+                        $coupon['checked'] = true;
+                        $flag = true;
+                    }
+                    //跨店券
+                } else if ($coupon['coupon']['type'] === StoreCouponRepository::TYPE_PLATFORM_STORE) {
+                    $_price = 0;
+                    $_use_count = 0;
+                    $flag2 = true;
+                    foreach ($coupon['product'] as $item) {
+                        $merId = $item['product_id'];
+                        if (isset($storePriceLst[$merId])) {
+                            $_price = bcadd($storePriceLst[$merId]['price'], $_price, 2);
+                            $_use_count += $storePriceLst[$merId]['num'];
+                            $flag2 = false;
+                        }
+                    }
+                    $coupon['disabled'] = $flag2 || $coupon['use_min_price'] > $_price;
+                    //店铺券可用
+                    if (!$platformCouponRate && !$coupon['disabled'] && !$flag && !$flag2 && ((!$usePlatformCouponId && !$usePlatformCouponFlag) || $usePlatformCouponId == $coupon['coupon_user_id'])) {
+                        $_merIds = $coupon['product']->column('product_id');
+                        $platformCouponRate = [
+                            'id' => $coupon['coupon_user_id'],
+                            'type' => $coupon['coupon']['type'],
+                            'price' => $_price,
+                            'use_store' => $_merIds,
+                            'coupon_price' => $coupon['coupon_price'],
+                            'use_count' => $_use_count,
+                            'check' => function ($cart) use ($_merIds) {
+                                return in_array($cart['mer_id'], $_merIds);
+                            }
+                        ];
+                        $coupon['checked'] = true;
+                        $flag = true;
+                    }
+                }
+            }
+            unset($coupon);
+        }
+        //        }
+
+        $usePlatformCouponId = 0;
+        $total_platform_coupon_price = 0;
+        //计算平台优惠券
+        if (isset($platformCouponRate)) {
+            $_coupon_price = $platformCouponRate['coupon_price'];
+            foreach ($merchantCartList as &$merchantCart) {
+                $_ids = array_column($merchantCart['list'], 'cart_id');
+                usort($merchantCart['list'], function ($a, $b) {
+                    return $a['true_price'] > $b['true_price'] ? 1 : -1;
+                });
+                $_price = 0;
+                foreach ($merchantCart['list'] as &$cart) {
+                    if ($cart['true_price'] <= 0 || !$platformCouponRate['check']($cart)) continue;
+
+                    if ($platformCouponRate['use_count'] === 1) {
+                        $couponPrice = min($platformCouponRate['coupon_price'], $cart['true_price']);
+                    } else {
+                        $couponPrice = min(max(0.01, bcmul($_coupon_price, bcdiv($cart['true_price'], $platformCouponRate['price'], 6), 2)), $cart['true_price']);
+                    }
+                    $platformCouponRate['coupon_price'] = bcsub($platformCouponRate['coupon_price'], $couponPrice, 2);
+                    $cart['true_price'] = bcsub($cart['true_price'], $couponPrice, 2);
+                    $cart['platform_coupon_price'] = $couponPrice;
+                    $platformCouponRate['use_count']--;
+                    $_price = bcadd($couponPrice, $_price, 2);
+                }
+                unset($cart);
+                $merchantCart['order']['platform_coupon_price'] = $_price;
+                $merchantCart['order']['true_price'] = bcsub($merchantCart['order']['true_price'], $_price, 2);
+                $total_platform_coupon_price = bcadd($total_platform_coupon_price, $_price, 2);
+                usort($merchantCart['list'], function ($a, $b) use ($_ids) {
+                    return array_search($a['cart_id'], $_ids) > array_search($b['cart_id'], $_ids) ? 1 : -1;
+                });
+            }
+            $usePlatformCouponId = $platformCouponRate['id'];
+            unset($merchantCart);
+        }
         //积分配置
         $sysIntegralConfig = systemConfig(['integral_money', 'integral_status', 'integral_order_rate']);
         $merIntegralFlag = false;