feat: support refund

backend/app/http/admin/orders.go

@@ -1,6 +1,8 @@
 package admin
 
 import (
+	"fmt"
+
 	"quyun/app/models"
 	"quyun/app/requests"
 	"quyun/database/fields"
@@ -30,7 +32,7 @@ func (ctl *orders) List(ctx fiber.Ctx, pagination *requests.Pagination, query *O
 }
 
 // Refund
-// @Router	/admin/orders/{id}/refund [post]
+// @Router	/admin/orders/:id/refund [post]
 // @Bind	id path
 func (ctl *orders) Refund(ctx fiber.Ctx, id int64) error {
 	order, err := models.Orders.GetByID(ctx.Context(), id)
@@ -51,7 +53,15 @@ func (ctl *orders) Refund(ctx fiber.Ctx, id int64) error {
 			TransactionID(order.TransactionID).
 			CNYRefundAmount(refundTotal, refundTotal).
 			RefundReason("管理员退款").
-			RefundGoodsInfo(post.Title)
+			RefundGoods([]wepay.RefundGoodsInfo{
+				{
+					MerchantGoodsID: fmt.Sprintf("%d", order.PostID),
+					GoodsName:       post.Title,
+					RefundQuantity:  1,
+					RefundAmount:    refundTotal,
+					UnitPrice:       order.Price,
+				},
+			})
 	})
 	if err != nil {
 		return err

backend/app/http/admin/routes.gen.go

@@ -63,6 +63,11 @@ func (r *Routes) Register(router fiber.Router) {
 		Query[OrderListQuery]("query"),
 	))
 
+	router.Post("/admin/orders/:id/refund", Func1(
+		r.orders.Refund,
+		PathParam[int64]("id"),
+	))
+
 	// 注册路由组: posts
 	router.Get("/admin/posts", DataFunc2(
 		r.posts.List,

backend/app/http/posts.go

@@ -2,6 +2,7 @@ package http
 
 import (
 	_ "embed"
+	"fmt"
 	"strconv"
 	"time"
 
@@ -272,13 +273,22 @@ func (ctl *posts) Buy(ctx fiber.Ctx, id int64, user *model.Users) (*wechat.JSAPI
 		return nil, errors.Wrap(err, "订单创建失败")
 	}
 
+	payPrice := post.Price * int64(post.Discount) / 100
 	prePayResp, err := ctl.wepay.V3TransactionJsapi(ctx.Context(), func(bm *wepay.BodyMap) {
 		bm.
 			Expire(30 * time.Minute).
 			Description(post.Title).
 			OutTradeNo(order.OrderNo).
 			Payer(user.OpenID).
-			CNYAmount(post.Price * int64(post.Discount) / 100)
+			CNYAmount(payPrice).
+			Detail([]wepay.GoodsInfo{
+				{
+					GoodsName:       post.Title,
+					UnitPrice:       payPrice,
+					MerchantGoodsID: fmt.Sprintf("%d", post.ID),
+					Quantity:        1,
+				},
+			})
 	})
 	if err != nil {
 		log.Errorf("wepay.V3TransactionJsapi err: %v", err)