Item::load

static function load(array $productIds): array
{
	$repositoryFacade = ServiceContainer::getRepositoryFacade();

	if (!$repositoryFacade || empty($productIds))
	{
		return [];
	}

	$productInfo = [];
	$productSkuIblockMap = [];
	foreach ($productIds as $skuId)
	{
		$sku = $repositoryFacade->loadVariation($skuId);
		if (!$sku)
		{
			continue;
		}

		/** @var BitrixCatalogv2ProductBaseProduct $product */
		$product = $sku->getParent();
		if (!$product)
		{
			continue;
		}

		$fields = $sku->getFields();
		$basePrice = $sku->getPriceCollection()->findBasePrice();
		$fields['BASE_PRICE'] = $basePrice ? $basePrice->getFields() : null;
		$fields['PRODUCT_ID'] = $product->getId();
		$fields['SKU_ID'] = $skuId;
		$fields['OFFERS_IBLOCK_ID'] = 0;
		$fields['SKU_TREE'] = [];

		$fields['SECTION_IDS'] = $product->getSectionCollection()->getValues();

		$fields['GALLERY'] = $sku->getFrontImageCollection()->toArray();

		$fields['MEASURE'] = MeasureRepository::findById($sku->getField('MEASURE'));

		$fields['BARCODES'] = $sku->getBarcodeCollection()->toArray();

		if (!$product->isSimple())
		{
			$fields['OFFERS_IBLOCK_ID'] = $fields['IBLOCK_ID'];
			$fields['IBLOCK_ID'] = $product->getIblockId();
			$productSkuIblockMap[$product->getIblockId()] = $productSkuIblockMap[$product->getIblockId()] ?? [];
			$productSkuIblockMap[$product->getIblockId()][$product->getId()][] = $sku->getId();
		}

		$productInfo[$skuId] = $fields;
	}

	if ($productSkuIblockMap)
	{
		foreach ($productSkuIblockMap as $iblockId => $productMap)
		{
			$skuTree = ServiceContainer::make('sku.tree', ['iblockId' => $iblockId]);
			if ($skuTree)
			{
				$skuTreeItems = $skuTree->loadWithSelectedOffers($productMap);
				foreach ($skuTreeItems as $productId => $offers)
				{
					foreach ($offers as $skuId => $skuTreeItem)
					{
						if (isset($productInfo[$skuId]))
						{
							$productInfo[$skuId]['SKU_TREE'] = $skuTreeItem;
						}
					}
				}
			}
		}
	}

	return $productInfo;
}