public async Task FilterAsync(IDialogContext context, IAwaitable <IMessageActivity> activity)
{
List <Filter> filters = StateHelper.GetFilters(context);
// search products based on the last fetch id (inclusive)
// search will fetch +1 product to know if pagination is needed
List <Product> products = ProductController.getProductsFilter(
FilterLogic.GetJoinedFilter(filters),
Constants.N_ITEMS_CARROUSSEL + 1,
last_fetch_id);
if (products.Count > 1)
{
last_fetch_id = products[products.Count - 2].Id;
}
var reply = context.MakeMessage();
var text = "";
if (products.Count > 0)
{
text = Interactions.getFilter(Interactions.State.SUCCESS, page) + " \n";
}
else
{
text = Interactions.getFilter(Interactions.State.FAIL, page) + " \n";
}
//display current filters
for (int i = 0; i < filters.Count; i++)
{
text += filters[i].FilterName + filters[i].Operator + filters[i].Value;
if (i != filters.Count - 1)
{
text += ", ";
}
}
await Interactions.SendMessage(context, text, 2000, 3000);
bool done = false;
List <ButtonType> buttons = new List <ButtonType>();
string button_text = "";
//show products
if (products.Count > 0)
{
//display products
reply = context.MakeMessage();
reply.AttachmentLayout = AttachmentLayoutTypes.Carousel;
List <Attachment> cards = new List <Attachment>();
//limit
for (var i = 0; i < products.Count && i < Constants.N_ITEMS_CARROUSSEL; i++)
{
cards.Add(ProductCard.GetProductCard(products[i], ProductCard.CardType.SEARCH).ToAttachment());
}
reply.Attachments = cards;
await context.PostAsync(reply);
//Check if pagination is needed
if (products.Count > Constants.N_ITEMS_CARROUSSEL)
{
button_text = "Não consegui trazer todos os produtos do catálogo com esses requisitos. Se quiser ver mais produtos clique no botão abaixo.";
buttons.Add(ButtonType.PAGINATION);
}
}
button_text += "\nPara alterar os parâmetros da pesquisa carregue no respetivo botão.";
await Interactions.SendMessage(context, button_text, 2000, 2000);
buttons.Add(ButtonType.FILTER_AGAIN);
//show options
reply = context.MakeMessage();
reply.Attachments.Add(getCardButtonsAttachment(buttons, DialogType.FILTER));
await context.PostAsync(reply);
context.Wait(this.InputHandler);
}
