botserver/packages/core.gbapp/dialogs/WelcomeDialog.ts

/*****************************************************************************\
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| General Bots Copyright (c) Pragmatismo.io. All rights reserved.             |
| Licensed under the AGPL-3.0.                                                |
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/**
 * @fileoverview General Bots server core.
 */

'use strict';

import { BotAdapter } from 'botbuilder';
import {WaterfallDialog } from 'botbuilder-dialogs';
import { IGBDialog } from 'botlib';
import { GBMinInstance } from 'botlib';
import { Messages } from '../strings';

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

    min.dialogs.add(new WaterfallDialog('/', [
      async step => {

        const user = await min.userProfile.get(context, {});
        const locale = step.context.activity.locale;

        if (!user.once) {
          user.once = true;
          await min.userProfile.set(step.context, user);
          const a = new Date();
          const date = a.getHours();
          const msg =
            date < 12
              ? Messages[locale].good_morning
              : date < 18
                ? Messages[locale].good_evening
                : Messages[locale].good_night;

          await step.context.sendActivity(Messages[locale].hi(msg));
          await step.replaceDialog('/ask', { firstTime: true });

          if (
            step.context.activity &&
            step.context.activity.type == 'message' &&
            step.context.activity.text != ''
          ) {
            await step.replaceDialog('/answer', { query: step.context.activity.text });
          }
        }
        return await step.next();
      }
    ]));
  }
}