Fix Analytics

internal/service/analytics_service.go

@@ -29,12 +29,10 @@ func NewAnalyticsServiceImpl(analyticsProcessor processor.AnalyticsProcessor) *A
 }
 
 func (s *AnalyticsServiceImpl) GetPaymentMethodAnalytics(ctx context.Context, req *models.PaymentMethodAnalyticsRequest) (*models.PaymentMethodAnalyticsResponse, error) {
-	// Validate request
 	if err := s.validatePaymentMethodAnalyticsRequest(req); err != nil {
 		return nil, fmt.Errorf("validation error: %w", err)
 	}
 
-	// Process analytics request
 	response, err := s.analyticsProcessor.GetPaymentMethodAnalytics(ctx, req)
 	if err != nil {
 		return nil, fmt.Errorf("failed to get payment method analytics: %w", err)
@@ -106,7 +104,6 @@ func (s *AnalyticsServiceImpl) validatePaymentMethodAnalyticsRequest(req *models
 		return fmt.Errorf("date_from cannot be after date_to")
 	}
 
-	// Validate groupBy if provided
 	if req.GroupBy != "" {
 		validGroupBy := map[string]bool{
 			"day":   true,