botserver/deploy/kb.gbapp/dialogs/MenuDialog.ts

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"use strict";

import { Length } from "sequelize-typescript";
import {
  CardAction,
  HeroCard,
  CardImage,
  BotAdapter,
  CardFactory,
  MessageFactory
} from "botbuilder";
import { IGBDialog } from "botlib";
import { GBMinInstance } from "botlib";
import { AzureText } from "pragmatismo-io-framework";
import { GuaribasSubject } from '../models';
import { KBService } from "../services/KBService";

const UrlJoin = require("url-join");
const WaitUntil = require("wait-until");

export class MenuDialog extends IGBDialog {

  /**
   * Setup dialogs flows and define services call.
   * 
   * @param bot The bot adapter.
   * @param min The minimal bot instance data.
   */
  static setup(bot: BotAdapter, min: GBMinInstance) {

    var service = new KBService();

    bot
    min.dialogs.add("/menu", [
      async (dc, args) => {
        var rootSubjectId = null;
        var botId = min.botId;

        // var msg = dc.message; TODO: message from Where in V4?
        // if (msg.attachments && msg.attachments.length > 0) {
        //   var attachment = msg.attachments[0];         
        // }


        if (args && args.data) {
          var subject = JSON.parse(args.data); // ?

          if (subject.to) {
            let dialog = subject.to.split(":")[1];
            dc.replace("/" + dialog);
            dc.end();
            return;
          }
          const user = min.userState.get(dc.context);
          user.subjects.push(subject);
          rootSubjectId = subject.subjectId;

          if (user.subjects.length > 0) {

            let data = await service.getFaqBySubjectArray("menu", user.subjects);
            await min.conversationalService.sendEvent(dc, "play", {
              playerType: "bullet",
              data: data.slice(0, 6)
            });

          }
        } else {
          const user = min.userState.get(dc.context);
          user.subjects = [];

          WaitUntil()
            .interval(2000)
            .times(1)
            .condition(function (cb) {
              return false;
            })
            .done(function (result) {
              let messages = [
                "Aqui estão algumas categorias de assuntos...",
                "Selecionando o assunto você pode me ajudar a encontrar a resposta certa...",
                "Você pode selecionar algum dos assuntos abaixo e perguntar algo..."
              ];
              dc.context.sendActivity(messages[0]); // TODO: Handle rnd.
            });

          user.isAsking = false;
        }

        const msg = MessageFactory.text('Greetings from example message');
        var attachments = [];

        let data = await service.getSubjectItems(
          min.instance.instanceId,
          rootSubjectId);


        msg.attachmentLayout = 'carousel';


        data.forEach(function (item: GuaribasSubject) {

          var subject = item;

          var card = CardFactory.heroCard(
            subject.title,
            CardFactory.images([UrlJoin(
              "/kb",
              min.instance.kb,
              "subjects",
              subject.internalId + ".png" // TODO: or fallback to subject.png
            )]),
            CardFactory.actions([
              {
                type: 'postBack',
                title: 'Selecionar',
                value: JSON.stringify({
                  title: subject.title,
                  subjectId: subject.subjectId,
                  to: subject.to
                })
              }]));

          attachments.push(card);

        });

        if (attachments.length == 0) {
          const user = min.userState.get(dc.context);
          if (user.subjects && user.subjects.length > 0) {
            await dc.context.sendActivity(
              `Vamos pesquisar sobre ${KBService.getFormattedSubjectItems(
                user.subjects
              )}?`
            );
          }

          await dc.replace("/ask", {});
        } else {
          msg.attachments = attachments;
          await dc.context.sendActivity(msg);
        }

        const user = min.userState.get(dc.context);
        user.isAsking = true;
      },
      async (dc, value) => {
        var text = value;
        if (text==="no"||text==="n") { // TODO: Migrate to a common.
          dc.replace("/feedback");
        } else {
          dc.replace("/ask");
        }
      }
    ]);
  }
}