f

app/main/api/internal/logic/pay/wechatpayrefundcallbacklogic.go

@@ -1,14 +1,15 @@
 package pay
 
 import (
-	"context"
-	"database/sql"
-	"net/http"
-	"strings"
-	"time"
 	"bdrp-server/app/main/api/internal/svc"
 	"bdrp-server/app/main/model"
 	"bdrp-server/common/globalkey"
+	"context"
+	"database/sql"
+	"math"
+	"net/http"
+	"strings"
+	"time"
 
 	"github.com/Masterminds/squirrel"
 	"github.com/pkg/errors"
@@ -17,10 +18,15 @@ import (
 	"github.com/zeromicro/go-zero/core/stores/sqlx"
 )
 
+func roundMoney(v float64) float64 {
+	return math.Round(v*100) / 100
+}
+
 // HandleCommissionAndWalletDeduction 处理退款后的佣金状态更新和钱包金额扣除
 // refundAmount 为本次实际退款金额（单位：元），从代理侧总共需要承担的金额
 // 该函数会优先冲减当前订单相关的佣金（基于 RefundedAmount），不足部分再从钱包余额/冻结余额中扣除
 func HandleCommissionAndWalletDeduction(ctx context.Context, svcCtx *svc.ServiceContext, session sqlx.Session, order *model.Order, refundAmount float64) error {
+	refundAmount = roundMoney(refundAmount)
 	if refundAmount <= 0 {
 		return nil
 	}
@@ -52,7 +58,7 @@ func HandleCommissionAndWalletDeduction(ctx context.Context, svcCtx *svc.Service
 
 	// 1. 先在佣金记录上做冲减：增加 RefundedAmount，必要时将状态置为已退款
 	for _, commission := range commissions {
-		available := commission.Amount - commission.RefundedAmount
+		available := roundMoney(commission.Amount - commission.RefundedAmount)
 		if available <= 0 {
 			continue
 		}
@@ -66,11 +72,12 @@ func HandleCommissionAndWalletDeduction(ctx context.Context, svcCtx *svc.Service
 		if currentRefund > remainRefundAmount {
 			currentRefund = remainRefundAmount
 		}
+		currentRefund = roundMoney(currentRefund)
 
 		// 更新佣金的已退款金额
-		commission.RefundedAmount += currentRefund
+		commission.RefundedAmount = roundMoney(commission.RefundedAmount + currentRefund)
 		// 如果这条佣金已经被完全冲减，则标记为已退款
-		if commission.RefundedAmount >= commission.Amount {
+		if commission.RefundedAmount >= roundMoney(commission.Amount) {
 			commission.Status = 2
 		}
 
@@ -92,9 +99,9 @@ func HandleCommissionAndWalletDeduction(ctx context.Context, svcCtx *svc.Service
 			wa = &walletAdjust{agentId: commission.AgentId}
 			walletAdjustMap[commission.AgentId] = wa
 		}
-		wa.amount += currentRefund
+		wa.amount = roundMoney(wa.amount + currentRefund)
 
-		remainRefundAmount -= currentRefund
+		remainRefundAmount = roundMoney(remainRefundAmount - currentRefund)
 	}
 
 	// 2. 再按代理维度，从钱包（冻结余额/可用余额）中扣除对应金额
@@ -115,19 +122,19 @@ func HandleCommissionAndWalletDeduction(ctx context.Context, svcCtx *svc.Service
 		frozenBalanceBefore := wallet.FrozenBalance
 
 		// 优先从冻结余额中扣除（与原先“冻结佣金优先使用冻结余额”的设计一致）
-		deduct := wa.amount
+		deduct := roundMoney(wa.amount)
 		if wallet.FrozenBalance >= deduct {
-			wallet.FrozenBalance -= deduct
+			wallet.FrozenBalance = roundMoney(wallet.FrozenBalance - deduct)
 		} else {
-			remaining := deduct - wallet.FrozenBalance
+			remaining := roundMoney(deduct - wallet.FrozenBalance)
 			wallet.FrozenBalance = 0
 			// 可用余额可以为负数，由业务承担风险
-			wallet.Balance -= remaining
+			wallet.Balance = roundMoney(wallet.Balance - remaining)
 		}
 
 		// 变动后余额和冻结余额
-		balanceAfter := wallet.Balance
-		frozenBalanceAfter := wallet.FrozenBalance
+		balanceAfter := roundMoney(wallet.Balance)
+		frozenBalanceAfter := roundMoney(wallet.FrozenBalance)
 		// 更新钱包
 		var updateWalletErr error
 		if session != nil {
@@ -145,7 +152,7 @@ func HandleCommissionAndWalletDeduction(ctx context.Context, svcCtx *svc.Service
 			session,
 			wa.agentId,
 			model.WalletTransactionTypeRefund,
-			-wa.amount*-1, // 钱包流水金额为负数
+			roundMoney(-wa.amount*-1), // 钱包流水金额为负数
 			balanceBefore,
 			balanceAfter,
 			frozenBalanceBefore,
@@ -348,7 +355,7 @@ func (l *WechatPayRefundCallbackLogic) WechatPayRefundCallback(w http.ResponseWr
 	var refundAmountYuan float64
 	if notification.Amount != nil && notification.Amount.Refund != nil {
 		// 微信退款金额单位为分，这里转换为元
-		refundAmountYuan = float64(*notification.Amount.Refund) / 100.0
+		refundAmountYuan = roundMoney(float64(*notification.Amount.Refund) / 100.0)
 	}
 
 	// 4. 根据订单号前缀处理不同类型的订单