邹方成
45815bfb7d
refactor(utils): 修复密码哈希比较逻辑错误 feat(user): 新增按状态筛选优惠券接口 docs: 添加虚拟发货与任务中心相关文档 fix(wechat): 修正Code2Session上下文传递问题 test: 补充订单折扣与积分转换测试用例 build: 更新配置文件与构建脚本 style: 清理多余的空行与注释
83 lines
2.3 KiB
Go
83 lines
2.3 KiB
Go
package user
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import (
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"context"
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"errors"
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"time"
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"bindbox-game/internal/repository/mysql/dao"
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"bindbox-game/internal/repository/mysql/model"
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"gorm.io/gorm/clause"
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)
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// CancelOrder 取消订单
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func (s *service) CancelOrder(ctx context.Context, userID int64, orderID int64, reason string) (*model.Orders, error) {
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var updatedOrder *model.Orders
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err := s.writeDB.Transaction(func(tx *dao.Query) error {
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// 1. 查询订单
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order, err := tx.Orders.WithContext(ctx).Clauses(clause.Locking{Strength: "UPDATE"}).Where(tx.Orders.ID.Eq(orderID), tx.Orders.UserID.Eq(userID)).First()
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if err != nil {
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return err
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}
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if order == nil {
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return errors.New("order not found")
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}
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// 2. 校验状态
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if order.Status != 1 {
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return errors.New("order cannot be cancelled")
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}
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// 3. 退还积分
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if order.PointsAmount > 0 {
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refundReason := "cancel_order"
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if reason != "" {
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refundReason = refundReason + ":" + reason
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}
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// Get Rate
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ratePtsPerCent, _ := s.CentsToPoints(ctx, 1)
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if ratePtsPerCent <= 0 {
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ratePtsPerCent = 1
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}
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pointsToRefund := order.PointsAmount * ratePtsPerCent
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// Update User Points
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existing, _ := tx.UserPoints.WithContext(ctx).Clauses(clause.Locking{Strength: "UPDATE"}).Where(tx.UserPoints.UserID.Eq(userID)).First()
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if existing == nil {
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if err := tx.UserPoints.WithContext(ctx).Omit(tx.UserPoints.ValidEnd).Create(&model.UserPoints{UserID: userID, Points: pointsToRefund}); err != nil {
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return err
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}
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} else {
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if _, err := tx.UserPoints.WithContext(ctx).Where(tx.UserPoints.ID.Eq(existing.ID)).Updates(map[string]any{"points": existing.Points + pointsToRefund}); err != nil {
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return err
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}
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}
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// Log
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led := &model.UserPointsLedger{UserID: userID, Action: "refund_points", Points: pointsToRefund, RefTable: "orders", RefID: order.OrderNo, Remark: refundReason}
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if err := tx.UserPointsLedger.WithContext(ctx).Create(led); err != nil {
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return err
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}
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}
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// 4. 更新订单状态
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updates := map[string]any{
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tx.Orders.Status.ColumnName().String(): 3,
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tx.Orders.CancelledAt.ColumnName().String(): time.Now(),
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}
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if _, err := tx.Orders.WithContext(ctx).Where(tx.Orders.ID.Eq(order.ID)).Updates(updates); err != nil {
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return err
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}
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updatedOrder = order
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updatedOrder.Status = 3
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return nil
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})
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if err != nil {
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return nil, err
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}
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return updatedOrder, nil
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}
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