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| General Bots Copyright (c) pragmatismo.com.br. All rights reserved.         |
| Licensed under the AGPL-3.0.                                                |
|                                                                             |
| According to our dual licensing model, this program can be used either      |
| under the terms of the GNU Affero General Public License, version 3,        |
| or under a proprietary license.                                             |
|                                                                             |
| The texts of the GNU Affero General Public License with an additional       |
| permission and of our proprietary license can be found at and               |
| in the LICENSE file you have received along with this program.              |
|                                                                             |
| This program is distributed in the hope that it will be useful,             |
| but WITHOUT ANY WARRANTY, without even the implied warranty of              |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                |
| GNU Affero General Public License for more details.                         |
|                                                                             |
| "General Bots" is a registered trademark of pragmatismo.com.br.             |
| The licensing of the program under the AGPLv3 does not imply a              |
| trademark license. Therefore any rights, title and interest in              |
| our trademarks remain entirely with us.                                     |
|                                                                             |
\*****************************************************************************/

/**
 * @fileoverview General Bots server core.
 */

'use strict';

import { BotAdapter } from 'botbuilder';
import { WaterfallDialog } from 'botbuilder-dialogs';
import { GBMinInstance, IGBDialog } from 'botlib';
import { GBConversationalService } from '../../core.gbapp/services/GBConversationalService.js';
import { Messages } from '../strings.js';
import { KBService } from './../services/KBService.js';

/**
 * Handle display of FAQ allowing direct access to KB.
 */
export class FaqDialog 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) {
    const service = new KBService(min.core.sequelize);

    min.dialogs.add(
      new WaterfallDialog('/faq', [
        async step => {
          if (step.context.activity.channelId !== 'msteams' && process.env.ENABLE_AUTH) {
            return await step.beginDialog('/auth');
          } else {
            return await step.next(step.options);
          }
        },

        async step => {
          const data = await service.getFaqBySubjectArray(min.instance.instanceId, 'faq', undefined);
          const locale = step.context.activity.locale;
          if (data !== undefined) {
            await min.conversationalService.sendEvent(min, step, 'play', {
              playerType: 'bullet',
              data: data.slice(0, 10)
            });

            await min.conversationalService.sendText(min, step, Messages[locale].see_faq);

            return await step.next();
          }
        }
      ])
    );
  }
}