public void AddSupplier(string productSku, string supplierName, IEnumerable <string> productBarcodes)
{
_inventoryManager.Initialize();
var tenantId = _tenantRepository.Acquiree.Id;
var newSupplierId =
_inventoryManager.GetAllSuppliers(tenantId).Count() + 1; // Simple id generator logic
var supplier = _inventoryManager.AddSupplier(tenantId, newSupplierId, supplierName);
supplier?.AddBarcodes(productBarcodes);
var product = _inventoryManager.GetProductBySku(tenantId, productSku);
product?.AddSupplier(supplier);
_inventoryManager.SaveProducts(tenantId);
_inventoryManager.SaveSuppliers(tenantId);
_inventoryManager.SaveSupplierProductBarcodes(tenantId);
}