public ActionResult <RecipeModel> GetRecipe(long id)
        {
            if (id == 0)
            {
                return(BadRequest($"Id was 0"));
            }
            var recipe = _productManagement.LoadRecipe(id);

            if (recipe == null)
            {
                return(NotFound());
            }
            return(ProductConverter.ConvertRecipe(recipe));
        }
        public IProductType ConvertProductBack(ProductModel source, ProductType converted)
        {
            // Copy base values
            converted.Identity = new ProductIdentity(source.Identifier, source.Revision);
            converted.Name     = source.Name;
            converted.State    = source.State;

            // Save recipes
            var recipes = new List <IProductRecipe>(source.Recipes?.Length ?? 0);

            foreach (var recipeModel in source.Recipes ?? Enumerable.Empty <RecipeModel>())
            {
                IProductRecipe productRecipe;
                if (recipeModel.Id == 0)
                {
                    var type = ReflectionTool.GetPublicClasses <IProductRecipe>(t => t.Name == recipeModel.Type).First();
                    productRecipe = (IProductRecipe)Activator.CreateInstance(type);
                }
                else
                {
                    productRecipe = (IProductRecipe)_productManagement.LoadRecipe(recipeModel.Id);
                }

                ConvertRecipeBack(recipeModel, productRecipe, converted);
                recipes.Add(productRecipe);
            }
            if (recipes.Any())
            {
                foreach (var r in recipes)
                {
                    _productManagement.SaveRecipe(r);
                }
            }


            // Product is flat
            if (source.Properties is null)
            {
                return(converted);
            }

            // Copy extended properties
            var properties = converted.GetType().GetProperties();

            EntryConvert.UpdateInstance(converted, source.Properties, ProductSerialization);

            // Copy Files
            ConvertFilesBack(converted, source, properties);

            // Convert parts
            foreach (var partConnector in source.Parts ?? Enumerable.Empty <PartConnector>())
            {
                if (partConnector.Parts is null)
                {
                    continue;
                }

                var prop  = properties.First(p => p.Name == partConnector.Name);
                var value = prop.GetValue(converted);
                if (partConnector.IsCollection)
                {
                    if (value == null)
                    {
                        value = Activator.CreateInstance(typeof(List <>)
                                                         .MakeGenericType(prop.PropertyType.GetGenericArguments().First()));
                        prop.SetValue(converted, value);
                    }
                    UpdateCollection((IList)value, partConnector.Parts);
                }
                else if (partConnector.Parts.Length == 1)
                {
                    if (value == null)
                    {
                        value = Activator.CreateInstance(prop.PropertyType);
                        prop.SetValue(converted, value);
                    }
                    UpdateReference((IProductPartLink)value, partConnector.Parts[0]);
                }
                else if (partConnector.Parts.Length == 0)
                {
                    prop.SetValue(converted, null);
                }
            }

            return(converted);
        }