f
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@@ -11,7 +11,6 @@ import (
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"strings"
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"time"
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"github.com/Masterminds/squirrel"
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"github.com/pkg/errors"
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"github.com/wechatpay-apiv3/wechatpay-go/services/refunddomestic"
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"github.com/zeromicro/go-zero/core/logx"
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@@ -22,153 +21,6 @@ func roundMoney(v float64) float64 {
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return math.Round(v*100) / 100
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}
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// HandleCommissionAndWalletDeduction 处理退款后的佣金状态更新和钱包金额扣除
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// 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
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// 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
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func HandleCommissionAndWalletDeduction(ctx context.Context, svcCtx *svc.ServiceContext, session sqlx.Session, order *model.Order, refundAmount float64) error {
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refundAmount = roundMoney(refundAmount)
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if refundAmount <= 0 {
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return nil
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}
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// 查询当前订单关联的所有佣金记录（包括已结算和冻结），剔除已经完全退款的
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commissionBuilder := svcCtx.AgentCommissionModel.SelectBuilder()
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commissions, commissionsErr := svcCtx.AgentCommissionModel.FindAll(ctx, commissionBuilder.Where(squirrel.And{
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squirrel.Eq{"order_id": order.Id},
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squirrel.NotEq{"status": 2}, // 排除已全部退款的佣金
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}), "")
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if commissionsErr != nil {
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logx.Errorf("查询代理佣金失败，订单ID: %d, 错误: %v", order.Id, commissionsErr)
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return nil // 返回 nil，因为佣金更新失败不应影响退款流程
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}
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if len(commissions) == 0 {
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return nil
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}
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// 剩余需要由佣金 + 钱包共同承担的退款金额
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remainRefundAmount := refundAmount
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// 记录每个代理本次需要从钱包扣除的金额，避免同一代理多条佣金时重复查钱包并产生多条流水
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type walletAdjust struct {
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agentId int64
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amount float64 // 需要从该代理钱包扣除的金额（正数）
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}
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walletAdjustMap := make(map[int64]*walletAdjust)
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// 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
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for _, commission := range commissions {
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available := roundMoney(commission.Amount - commission.RefundedAmount)
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if available <= 0 {
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continue
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}
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if remainRefundAmount <= 0 {
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break
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}
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// 当前这条佣金最多可冲减 available，本次实际冲减 currentRefund
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currentRefund := available
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if currentRefund > remainRefundAmount {
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currentRefund = remainRefundAmount
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}
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currentRefund = roundMoney(currentRefund)
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// 更新佣金的已退款金额
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commission.RefundedAmount = roundMoney(commission.RefundedAmount + currentRefund)
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// 如果这条佣金已经被完全冲减，则标记为已退款
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if commission.RefundedAmount >= roundMoney(commission.Amount) {
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commission.Status = 2
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}
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// 更新佣金状态到数据库
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var updateCommissionErr error
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if session != nil {
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updateCommissionErr = svcCtx.AgentCommissionModel.UpdateWithVersion(ctx, session, commission)
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} else {
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updateCommissionErr = svcCtx.AgentCommissionModel.UpdateWithVersion(ctx, nil, commission)
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}
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if updateCommissionErr != nil {
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logx.Errorf("更新代理佣金状态失败，佣金ID: %d, 订单ID: %d, 错误: %v", commission.Id, order.Id, updateCommissionErr)
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continue // 如果佣金状态更新失败，就不继续计入本次冲减
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}
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// 记录该代理需要从钱包扣除的金额（可能后续还有其他佣金叠加）
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wa, ok := walletAdjustMap[commission.AgentId]
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if !ok {
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wa = &walletAdjust{agentId: commission.AgentId}
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walletAdjustMap[commission.AgentId] = wa
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}
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wa.amount = roundMoney(wa.amount + currentRefund)
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remainRefundAmount = roundMoney(remainRefundAmount - currentRefund)
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}
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// 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
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for _, wa := range walletAdjustMap {
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if wa.amount <= 0 {
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continue
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}
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// 处理用户钱包的金额扣除
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wallet, err := svcCtx.AgentWalletModel.FindOneByAgentId(ctx, wa.agentId)
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if err != nil {
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logx.Errorf("查询代理钱包失败，代理ID: %d, 错误: %v", wa.agentId, err)
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continue
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}
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// 记录变动前的余额
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balanceBefore := wallet.Balance
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frozenBalanceBefore := wallet.FrozenBalance
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// 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）
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deduct := roundMoney(wa.amount)
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if wallet.FrozenBalance >= deduct {
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wallet.FrozenBalance = roundMoney(wallet.FrozenBalance - deduct)
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} else {
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remaining := roundMoney(deduct - wallet.FrozenBalance)
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wallet.FrozenBalance = 0
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// 可用余额可以为负数，由业务承担风险
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wallet.Balance = roundMoney(wallet.Balance - remaining)
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}
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// 变动后余额和冻结余额
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balanceAfter := roundMoney(wallet.Balance)
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frozenBalanceAfter := roundMoney(wallet.FrozenBalance)
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// 更新钱包
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var updateWalletErr error
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if session != nil {
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updateWalletErr = svcCtx.AgentWalletModel.UpdateWithVersion(ctx, session, wallet)
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} else {
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updateWalletErr = svcCtx.AgentWalletModel.UpdateWithVersion(ctx, nil, wallet)
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}
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if updateWalletErr != nil {
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logx.Errorf("更新代理钱包失败，代理ID: %d, 错误: %v", wa.agentId, updateWalletErr)
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continue
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}
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// 创建钱包交易流水记录（退款）
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transErr := svcCtx.AgentService.CreateWalletTransaction(
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ctx,
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session,
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wa.agentId,
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model.WalletTransactionTypeRefund,
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roundMoney(-wa.amount*-1), // 钱包流水金额为负数
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balanceBefore,
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balanceAfter,
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frozenBalanceBefore,
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frozenBalanceAfter,
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order.OrderNo,
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0, // 这里不强绑到某一条具体佣金记录，按订单维度记录
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"订单退款，佣金已扣除",
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)
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if transErr != nil {
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logx.Errorf("创建代理钱包流水记录失败，代理ID: %d, 错误: %v", wa.agentId, transErr)
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continue
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}
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}
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return nil
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}
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type WechatPayRefundCallbackLogic struct {
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logx.Logger
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ctx context.Context
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@@ -227,8 +79,8 @@ func (l *WechatPayRefundCallbackLogic) handleQueryOrderRefund(orderNo string, st
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return errors.Wrapf(err, "更新查询订单状态失败: %s", orderNo)
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}
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// 退款成功时，按本次实际退款金额更新代理佣金状态并扣除钱包金额
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_ = HandleCommissionAndWalletDeduction(ctx, l.svcCtx, session, order, refundAmountYuan)
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// 退款成功时，按本次实际退款金额执行共用扣款流程
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l.svcCtx.AgentService.HandleOrderRefundDeduction(ctx, session, order, refundAmountYuan)
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}
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// 查找最新的pending状态的退款记录
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