public async Task <ActionResult <ProductToReturnDto> > GetProduct(int id)
        {
            var spec = new ProductTypeAndBrandSpec(id);

            var product = await _productRepo.GetEntityWithSpec(spec);

            if (product == null)
            {
                return(NotFound(new ApiResponse(404)));
            }

            return(Ok(_mapper.Map <Product, ProductToReturnDto>(product)));
        }
        public async Task <ActionResult <Pagination <ProductToReturnDto> > > GetProducts([FromQuery] ProductSpecParams productParams)
        {
            var spec = new ProductTypeAndBrandSpec(productParams);

            var countSpec = new ProductWithFiltersForCountSpec(productParams);

            var totalItems = await _productRepo.CountAsync(countSpec);

            var products = await _productRepo.ListAsync(spec);

            var data = _mapper.Map <IReadOnlyList <Product>, IReadOnlyList <ProductToReturnDto> >(products);

            // return products.Select(product => new ProductToReturnDto
            // {
            //     Id = product.Id, Description = product.Description, Name = product.Name,
            //     PictureUrl = product.PictureUrl, Price = product.Price,
            //     ProductBrand = product.ProductBrand.Name, ProductType = product.ProductType.Name
            // }).ToList();
            return(Ok(new Pagination <ProductToReturnDto>(productParams.PageIndex, productParams.PageSize, totalItems, data)));
        }