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fix(order): improve code quality and fix critical bugs in order processing logic

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- Fix inconsistent logging calls across all order logic files
- Fix critical gift amount deduction logic bug in renewal process
- Fix variable shadowing errors in database transactions
- Add comprehensive Go-standard documentation comments
- Improve log prefix consistency for better debugging
- Remove redundant discount validation code
This commit is contained in:
Chang lue Tsen
2025-07-23 11:45:06 -04:00
committed by Leif Draven
parent 46ab012b6c
commit c8de30f78c
4 changed files with 44 additions and 24 deletions
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internal/logic/public/order/purchaseLogic.go
+18 -11
View File
@@ -31,7 +31,8 @@ const (
CloseOrderTimeMinutes = 15
)
// NewPurchaseLogic purchase Subscription
// NewPurchaseLogic creates a new purchase logic instance for subscription purchase operations.
// It initializes the logger with context and sets up the service context for database operations.
func NewPurchaseLogic(ctx context.Context, svcCtx *svc.ServiceContext) *PurchaseLogic {
return &PurchaseLogic{
Logger: logger.WithContext(ctx),
@@ -40,6 +41,9 @@ func NewPurchaseLogic(ctx context.Context, svcCtx *svc.ServiceContext) *Purchase
}
}
// Purchase processes new subscription purchase orders including validation, discount calculation,
// coupon processing, gift amount deduction, fee calculation, and order creation with database transaction.
// It handles the complete purchase workflow from user validation to order creation and task scheduling.
func (l *PurchaseLogic) Purchase(req *types.PurchaseOrderRequest) (resp *types.PurchaseOrderResponse, err error) {
u, ok := l.ctx.Value(constant.CtxKeyUser).(*user.User)
@@ -47,6 +51,12 @@ func (l *PurchaseLogic) Purchase(req *types.PurchaseOrderRequest) (resp *types.P
logger.Error("current user is not found in context")
return nil, errors.Wrapf(xerr.NewErrCode(xerr.InvalidAccess), "Invalid Access")
}
if req.Quantity <= 0 {
l.Debugf("[Purchase] Quantity is less than or equal to 0, setting to 1")
req.Quantity = 1
}
// find user subscription
userSub, err := l.svcCtx.UserModel.QueryUserSubscribe(l.ctx, u.Id)
if err != nil {
@@ -89,9 +99,6 @@ func (l *PurchaseLogic) Purchase(req *types.PurchaseOrderRequest) (resp *types.P
_ = json.Unmarshal([]byte(sub.Discount), &dis)
discount = getDiscount(dis, req.Quantity)
}
if discount == 0 {
discount = 1
}
price := sub.UnitPrice * req.Quantity
// discount amount
amount := int64(float64(price) * discount)
@@ -145,7 +152,7 @@ func (l *PurchaseLogic) Purchase(req *types.PurchaseOrderRequest) (resp *types.P
// find payment method
payment, err := l.svcCtx.PaymentModel.FindOne(l.ctx, req.Payment)
if err != nil {
l.Logger.Error("[Purchase] Database query error", logger.Field("error", err.Error()), logger.Field("payment", req.Payment))
l.Errorw("[Purchase] Database query error", logger.Field("error", err.Error()), logger.Field("payment", req.Payment))
return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "find payment method error: %v", err.Error())
}
var feeAmount int64
@@ -183,8 +190,8 @@ func (l *PurchaseLogic) Purchase(req *types.PurchaseOrderRequest) (resp *types.P
// update user deduction && Pre deduction ,Return after canceling the order
if orderInfo.GiftAmount > 0 {
// update user deduction && Pre deduction ,Return after canceling the order
if e := l.svcCtx.UserModel.Update(l.ctx, u, db); err != nil {
l.Errorw("[Purchase] Database update error", logger.Field("error", err.Error()), logger.Field("user", u))
if e := l.svcCtx.UserModel.Update(l.ctx, u, db); e != nil {
l.Errorw("[Purchase] Database update error", logger.Field("error", e.Error()), logger.Field("user", u))
return e
}
// create deduction record
@@ -198,7 +205,7 @@ func (l *PurchaseLogic) Purchase(req *types.PurchaseOrderRequest) (resp *types.P
}
if e := db.Model(&user.GiftAmountLog{}).Create(&giftAmountLog).Error; e != nil {
l.Errorw("[Purchase] Database insert error",
logger.Field("error", err.Error()),
logger.Field("error", e.Error()),
logger.Field("deductionLog", giftAmountLog),
)
return e
@@ -216,14 +223,14 @@ func (l *PurchaseLogic) Purchase(req *types.PurchaseOrderRequest) (resp *types.P
}
val, err := json.Marshal(payload)
if err != nil {
l.Errorw("[CreateOrder] Marshal payload error", logger.Field("error", err.Error()), logger.Field("payload", payload))
l.Errorw("[Purchase] Marshal payload error", logger.Field("error", err.Error()), logger.Field("payload", payload))
}
task := asynq.NewTask(queue.DeferCloseOrder, val, asynq.MaxRetry(3))
taskInfo, err := l.svcCtx.Queue.Enqueue(task, asynq.ProcessIn(CloseOrderTimeMinutes*time.Minute))
if err != nil {
l.Errorw("[CreateOrder] Enqueue task error", logger.Field("error", err.Error()), logger.Field("task", task))
l.Errorw("[Purchase] Enqueue task error", logger.Field("error", err.Error()), logger.Field("task", task))
} else {
l.Infow("[CreateOrder] Enqueue task success", logger.Field("TaskID", taskInfo.ID))
l.Infow("[Purchase] Enqueue task success", logger.Field("TaskID", taskInfo.ID))
}
return &types.PurchaseOrderResponse{