feat: add PaymentMethod field to TopUp model and enhance payment method validation in topup controllers

model/topup.go

@@ -12,17 +12,19 @@ import (
 )
 
 type TopUp struct {
-	Id               int     `json:"id"`
-	UserId           int     `json:"user_id" gorm:"index"`
-	Amount           int64   `json:"amount"`
-	Money            float64 `json:"money"`
-	TradeNo          string  `json:"trade_no" gorm:"unique;type:varchar(255);index"`
-	PaymentMethod    string  `json:"payment_method" gorm:"type:varchar(50)"`
-	CreateTime       int64   `json:"create_time"`
-	CompleteTime     int64   `json:"complete_time"`
-	Status           string  `json:"status"`
+	Id            int     `json:"id"`
+	UserId        int     `json:"user_id" gorm:"index"`
+	Amount        int64   `json:"amount"`
+	Money         float64 `json:"money"`
+	TradeNo       string  `json:"trade_no" gorm:"unique;type:varchar(255);index"`
+	PaymentMethod string  `json:"payment_method" gorm:"type:varchar(50)"`
+	CreateTime    int64   `json:"create_time"`
+	CompleteTime  int64   `json:"complete_time"`
+	Status        string  `json:"status"`
 }
 
+var ErrPaymentMethodMismatch = errors.New("payment method mismatch")
+
 func (topUp *TopUp) Insert() error {
 	var err error
 	err = DB.Create(topUp).Error
@@ -74,6 +76,10 @@ func Recharge(referenceId string, customerId string) (err error) {
 			return errors.New("充值订单不存在")
 		}
 
+		if topUp.PaymentMethod != "stripe" {
+			return ErrPaymentMethodMismatch
+		}
+
 		if topUp.Status != common.TopUpStatusPending {
 			return errors.New("充值订单状态错误")
 		}
@@ -325,6 +331,10 @@ func RechargeCreem(referenceId string, customerEmail string, customerName string
 			return errors.New("充值订单不存在")
 		}
 
+		if topUp.PaymentMethod != "creem" {
+			return ErrPaymentMethodMismatch
+		}
+
 		if topUp.Status != common.TopUpStatusPending {
 			return errors.New("充值订单状态错误")
 		}
@@ -396,6 +406,10 @@ func RechargeWaffo(tradeNo string) (err error) {
 			return errors.New("充值订单不存在")
 		}
 
+		if topUp.PaymentMethod != "waffo" {
+			return ErrPaymentMethodMismatch
+		}
+
 		if topUp.Status == common.TopUpStatusSuccess {
 			return nil // 幂等：已成功直接返回
 		}