feat: refactor product attributes caching logic and add HashArray utility function

internal/ozon/products/repository_api.go

@@ -199,27 +199,7 @@ func (a *apiRepository) StreamProductAttributesCache(ctx context.Context, market
 		errChan <- err
 		return
 	}
-	identifider, err := mp.GetIdentifier()
-	if err != nil {
-		errChan <- fmt.Errorf("getting marketplace identifier: %w", err)
-		return
-	}
-	key := fmt.Sprintf("ozon:products:attributes:%s", identifider)
-	var cachedMessage pb.GetProductAttributesResponse
-	err = redis.ReadProtoMessage(ctx, key, &cachedMessage)
-	if err == nil && len(cachedMessage.Items) > 0 {
-		resultChan <- utils.DerefSlice(cachedMessage.Items)
-		return
-	}
 	converter := generated.ConverterImpl{}
-	var allAttributes []PbProductAttributes
-	defer func() {
-		if len(allAttributes) == 0 {
-			return
-		}
-		message := pb.GetProductAttributesResponse{Items: utils.ToPtrs(allAttributes)}
-		_ = redis.WriteProtoMessage(ctx, key, &message)
-	}()
 
 	for _, chunk := range lo.Chunk(productIds, 1000) {
 		chunkStrings := lo.Map(chunk, func(item int, index int) string {
@@ -241,10 +221,7 @@ func (a *apiRepository) StreamProductAttributesCache(ctx context.Context, market
 			return *converter.AttributesToProto(&item)
 		})
 		resultChan <- attrs
-		allAttributes = append(allAttributes, attrs...)
-
 	}
-	//ozonClient.Products().GetDescriptionOfProducts()
 }
 
 func (a *apiRepository) DeleteProducts(ctx context.Context, marketplaceId int, items []*PbDeleteProductRequestItem) ([]*PbDeleteProductResponseItem, error) {

internal/wb/products/repository_api.go

@@ -95,7 +95,8 @@ func fetchProducts(
 }
 
 func (a apiRepository) StreamAllProductsCache(ctx context.Context, marketplaceId int, resultChan chan<- []pb.Product, errChan chan<- error) {
-	// DO NOT close channels here - WithCache will handle it (caller/creator owns them)
+	defer close(resultChan)
+	defer close(errChan)
 	mp, err := a.marketplaceRepository.GetMarketplaceByID(ctx, marketplaceId)
 	if err != nil {
 		errChan <- fmt.Errorf("getting marketplace by ID: %w", err)