change product list to retrieve its data from product outlets

internal/processor/product_processor.go

@@ -47,15 +47,17 @@ type ProductProcessorImpl struct {
 	productVariantRepo repository.ProductVariantRepository
 	inventoryRepo      repository.InventoryRepository
 	outletRepo         OutletRepository
+	outletPriceRepo    repository.ProductOutletPriceRepository
 }
 
-func NewProductProcessorImpl(productRepo ProductRepository, categoryRepo CategoryRepository, productVariantRepo repository.ProductVariantRepository, inventoryRepo repository.InventoryRepository, outletRepo OutletRepository) *ProductProcessorImpl {
+func NewProductProcessorImpl(productRepo ProductRepository, categoryRepo CategoryRepository, productVariantRepo repository.ProductVariantRepository, inventoryRepo repository.InventoryRepository, outletRepo OutletRepository, outletPriceRepo repository.ProductOutletPriceRepository) *ProductProcessorImpl {
 	return &ProductProcessorImpl{
 		productRepo:        productRepo,
 		categoryRepo:       categoryRepo,
 		productVariantRepo: productVariantRepo,
 		inventoryRepo:      inventoryRepo,
 		outletRepo:         outletRepo,
+		outletPriceRepo:    outletPriceRepo,
 	}
 }
 
@@ -227,11 +229,36 @@ func (p *ProductProcessorImpl) GetProductByID(ctx context.Context, id uuid.UUID)
 func (p *ProductProcessorImpl) ListProducts(ctx context.Context, filters map[string]interface{}, page, limit int) ([]models.ProductResponse, int, error) {
 	offset := (page - 1) * limit
 
+	var outletID uuid.UUID
+	if oid, ok := filters["outlet_id"]; ok {
+		outletID = oid.(uuid.UUID)
+		delete(filters, "outlet_id")
+	}
+
 	productEntities, total, err := p.productRepo.List(ctx, filters, limit, offset)
 	if err != nil {
 		return nil, 0, fmt.Errorf("failed to list products: %w", err)
 	}
 
+	if outletID != uuid.Nil && len(productEntities) > 0 {
+		productIDs := make([]uuid.UUID, len(productEntities))
+		for i, pe := range productEntities {
+			productIDs[i] = pe.ID
+		}
+		outletPrices, err := p.outletPriceRepo.GetByProductsAndOutlet(ctx, productIDs, outletID)
+		if err == nil {
+			priceMap := make(map[uuid.UUID]float64, len(outletPrices))
+			for _, op := range outletPrices {
+				priceMap[op.ProductID] = op.Price
+			}
+			for _, pe := range productEntities {
+				if price, ok := priceMap[pe.ID]; ok {
+					pe.Price = price
+				}
+			}
+		}
+	}
+
 	responses := make([]models.ProductResponse, len(productEntities))
 	for i, entity := range productEntities {
 		response := mappers.ProductEntityToResponse(entity)