internal/processor/product_outlet_price_processor.go

@@ -24,15 +24,27 @@ type ProductOutletPriceProcessor interface {
 
 type ProductOutletPriceProcessorImpl struct {
 	repo        repository.ProductOutletPriceRepository
+	productRepo ProductRepository
+	outletRepo  OutletRepository
 }
 
-func NewProductOutletPriceProcessorImpl(repo repository.ProductOutletPriceRepository) *ProductOutletPriceProcessorImpl {
+func NewProductOutletPriceProcessorImpl(repo repository.ProductOutletPriceRepository, productRepo ProductRepository, outletRepo OutletRepository) *ProductOutletPriceProcessorImpl {
 	return &ProductOutletPriceProcessorImpl{
 		repo:        repo,
+		productRepo: productRepo,
+		outletRepo:  outletRepo,
 	}
 }
 
 func (p *ProductOutletPriceProcessorImpl) Upsert(ctx context.Context, req *models.CreateProductOutletPriceRequest) (*models.ProductOutletPrice, error) {
+	if _, err := p.productRepo.GetByID(ctx, req.ProductID); err != nil {
+		return nil, fmt.Errorf("product not found: %w", err)
+	}
+
+	if _, err := p.outletRepo.GetByID(ctx, req.OutletID); err != nil {
+		return nil, fmt.Errorf("outlet not found: %w", err)
+	}
+
 	entity := &entities.ProductOutletPrice{
 		ProductID: req.ProductID,
 		OutletID:  req.OutletID,
@@ -43,7 +55,12 @@ func (p *ProductOutletPriceProcessorImpl) Upsert(ctx context.Context, req *model
 		return nil, fmt.Errorf("failed to upsert product outlet price: %w", err)
 	}
 
-	return mappers.ProductOutletPriceEntityToModel(entity), nil
+	actual, err := p.repo.GetByProductAndOutlet(ctx, req.ProductID, req.OutletID)
+	if err != nil {
+		return nil, fmt.Errorf("failed to retrieve upserted product outlet price: %w", err)
+	}
+
+	return mappers.ProductOutletPriceEntityToModel(actual), nil
 }
 
 func (p *ProductOutletPriceProcessorImpl) GetByProductAndOutlet(ctx context.Context, productID, outletID uuid.UUID) (*models.ProductOutletPrice, error) {

internal/service/product_outlet_price_service.go

@@ -2,6 +2,7 @@ package service
 
 import (
 	"context"
+	"errors"
 
 	"apskel-pos-be/internal/constants"
 	"apskel-pos-be/internal/contract"
@@ -10,6 +11,7 @@ import (
 	"apskel-pos-be/internal/transformer"
 
 	"github.com/google/uuid"
+	"gorm.io/gorm"
 )
 
 type ProductOutletPriceService interface {
@@ -47,7 +49,11 @@ func (s *ProductOutletPriceServiceImpl) Upsert(ctx context.Context, req *contrac
 func (s *ProductOutletPriceServiceImpl) GetByProductAndOutlet(ctx context.Context, productID, outletID uuid.UUID) *contract.Response {
 	result, err := s.processor.GetByProductAndOutlet(ctx, productID, outletID)
 	if err != nil {
-		errorResp := contract.NewResponseError(constants.InternalServerErrorCode, constants.ProductOutletPriceServiceEntity, err.Error())
+		code := constants.InternalServerErrorCode
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			code = constants.NotFoundErrorCode
+		}
+		errorResp := contract.NewResponseError(code, constants.ProductOutletPriceServiceEntity, err.Error())
 		return contract.BuildErrorResponse([]*contract.ResponseError{errorResp})
 	}
 

internal/validator/product_outlet_price_validator.go

@@ -2,6 +2,7 @@ package validator
 
 import (
 	"errors"
+	"fmt"
 
 	"apskel-pos-be/internal/constants"
 	"apskel-pos-be/internal/contract"
@@ -71,8 +72,7 @@ func (v *ProductOutletPriceValidatorImpl) ValidateBulkCreateRequest(req *contrac
 			return errors.New("outlet_id is required for each price entry"), constants.MissingFieldErrorCode
 		}
 		if p.Price < 0 {
-			_ = i
-			return errors.New("price must be non-negative for each price entry"), constants.MalformedFieldErrorCode
+			return fmt.Errorf("price at index %d must be non-negative", i), constants.MalformedFieldErrorCode
 		}
 	}