/// <summary>
        /// Invoke the widget view component
        /// </summary>
        /// <param name="widgetZone">Widget zone</param>
        /// <param name="additionalData">Additional parameters</param>
        /// <returns>
        /// A task that represents the asynchronous operation
        /// The task result contains the view component result
        /// </returns>
        public async Task <IViewComponentResult> InvokeAsync(string widgetZone, object additionalData)
        {
            //ensure that model is passed
            if (additionalData is not BaseNopEntityModel entityModel)
            {
                return(Content(string.Empty));
            }

            //ensure that Avalara tax provider is active
            if (!await _taxPluginManager.IsPluginActiveAsync(AvalaraTaxDefaults.SystemName))
            {
                return(Content(string.Empty));
            }

            if (!await _permissionService.AuthorizeAsync(StandardPermissionProvider.ManageTaxSettings))
            {
                return(Content(string.Empty));
            }

            //ensure that it's a proper widget zone
            if (!widgetZone.Equals(AdminWidgetZones.CustomerDetailsBlock) &&
                !widgetZone.Equals(AdminWidgetZones.CustomerRoleDetailsTop) &&
                !widgetZone.Equals(AdminWidgetZones.ProductDetailsBlock) &&
                !widgetZone.Equals(AdminWidgetZones.CheckoutAttributeDetailsBlock))
            {
                return(Content(string.Empty));
            }

            //get Avalara pre-defined entity use codes
            var cacheKey             = _staticCacheManager.PrepareKeyForDefaultCache(AvalaraTaxDefaults.EntityUseCodesCacheKey);
            var cachedEntityUseCodes = await _staticCacheManager.GetAsync(cacheKey, async() => await _avalaraTaxManager.GetEntityUseCodesAsync());

            var entityUseCodes = cachedEntityUseCodes?.Select(useCode => new SelectListItem
            {
                Value = useCode.code,
                Text  = $"{useCode.name} ({string.Join(", ", useCode.validCountries)})"
            }).ToList() ?? new List <SelectListItem>();

            //add the special item for 'undefined' with empty guid value
            var defaultValue = Guid.Empty.ToString();

            entityUseCodes.Insert(0, new SelectListItem
            {
                Value = defaultValue,
                Text  = await _localizationService.GetResourceAsync("Plugins.Tax.Avalara.Fields.EntityUseCode.None")
            });

            //prepare model
            var model = new EntityUseCodeModel
            {
                Id             = entityModel.Id,
                EntityUseCodes = entityUseCodes
            };

            //get entity by the model identifier
            BaseEntity entity = null;

            if (widgetZone.Equals(AdminWidgetZones.CustomerDetailsBlock))
            {
                model.PrecedingElementId = nameof(CustomerModel.IsTaxExempt);
                entity = await _customerService.GetCustomerByIdAsync(entityModel.Id);
            }

            if (widgetZone.Equals(AdminWidgetZones.CustomerRoleDetailsTop))
            {
                model.PrecedingElementId = nameof(CustomerRoleModel.TaxExempt);
                entity = await _customerService.GetCustomerRoleByIdAsync(entityModel.Id);
            }

            if (widgetZone.Equals(AdminWidgetZones.ProductDetailsBlock))
            {
                model.PrecedingElementId = nameof(ProductModel.IsTaxExempt);
                entity = await _productService.GetProductByIdAsync(entityModel.Id);
            }

            if (widgetZone.Equals(AdminWidgetZones.CheckoutAttributeDetailsBlock))
            {
                model.PrecedingElementId = nameof(CheckoutAttributeModel.IsTaxExempt);
                entity = await _checkoutAttributeService.GetCheckoutAttributeByIdAsync(entityModel.Id);
            }

            //try to get previously saved entity use code
            model.AvalaraEntityUseCode = entity == null ? defaultValue :
                                         await _genericAttributeService.GetAttributeAsync <string>(entity, AvalaraTaxDefaults.EntityUseCodeAttribute);

            return(View("~/Plugins/Tax.Avalara/Views/EntityUseCode/EntityUseCode.cshtml", model));
        }