Add QR Payment

internal/repository/midtrans/init.go

@@ -39,10 +39,10 @@ func (c *ClientService) CreatePayment(order entity.MidtransRequest) (*entity.Mid
 		Client: c.client,
 	}
 
-	paymentMethod := []midtrans.PaymentType{}
+	var paymentMethod []midtrans.PaymentType
 
-	if order.PaymentMethod == "GOPAY" {
-		paymentMethod = append(paymentMethod, midtrans.SourceGopay)
+	if order.PaymentMethod == "QRIS" {
+		paymentMethod = []midtrans.PaymentType{midtrans.SourceGopay}
 	}
 
 	snapReq := &midtrans.SnapReq{
@@ -83,3 +83,44 @@ func (c ClientService) getProductItems(products []entity.OrderItem) []midtrans.I
 
 	return items
 }
+
+func (c *ClientService) CreateQrisPayment(order entity.MidtransRequest) (*entity.MidtransQrisResponse, error) {
+	coreGateway := midtrans.CoreGateway{
+		Client: c.client,
+	}
+
+	req := &midtrans.ChargeReq{
+		PaymentType: midtrans.SourceGopay,
+		TransactionDetails: midtrans.TransactionDetails{
+			OrderID:  order.PaymentReferenceID,
+			GrossAmt: order.TotalAmount,
+		},
+	}
+
+	// Request charge and retrieve response
+	resp, err := coreGateway.Charge(req)
+	if err != nil {
+		logger.GetLogger().Error(fmt.Sprintf("error when creating QRIS payment: %v", err))
+		return nil, err
+	}
+
+	// Extract QR code URL from response actions
+	var qrCodeURL string
+	for _, action := range resp.Actions {
+		if action.Name == "generate-qr-code" {
+			qrCodeURL = action.URL
+			break
+		}
+	}
+
+	if qrCodeURL == "" {
+		logger.GetLogger().Error("error: QR code URL not provided in response")
+		return nil, fmt.Errorf("QR code URL not provided in response")
+	}
+
+	return &entity.MidtransQrisResponse{
+		QrCodeUrl: qrCodeURL,
+		OrderID:   order.PaymentReferenceID,
+		Amount:    order.TotalAmount,
+	}, nil
+}

internal/repository/payment/payment.go

@@ -72,6 +72,10 @@ func (r *PaymentRepository) FindByOrderAndPartnerID(ctx context.Context, orderID
 // FindByReferenceID retrieves a payment record by its reference ID
 func (r *PaymentRepository) FindByReferenceID(ctx context.Context, db *gorm.DB, referenceID string) (*entity.Payment, error) {
 	payment := new(entity.Payment)
+	if db == nil {
+		db = r.db
+	}
+
 	if err := db.WithContext(ctx).Where("reference_id = ?", referenceID).First(payment).Error; err != nil {
 		logger.ContextLogger(ctx).Error("error when finding payment by reference ID", zap.Error(err))
 		return nil, err

internal/repository/repository.go

@@ -192,6 +192,7 @@ type WalletRepository interface {
 
 type Midtrans interface {
 	CreatePayment(order entity.MidtransRequest) (*entity.MidtransResponse, error)
+	CreateQrisPayment(order entity.MidtransRequest) (*entity.MidtransQrisResponse, error)
 }
 
 type Payment interface {