text: /*
      LibreTaxi, free and open source ride sharing platform.
      Copyright (C) 2016-2017  Roman Pushkin
  
      This program is free software: you can redistribute it and/or modify
      it under the terms of the GNU Affero General Public License as
      published by the Free Software Foundation, either version 3 of the
      License, or (at your option) any later version.
  
      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.
  
      You should have received a copy of the GNU Affero General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
  
  import TextResponse from '../text-response';
  import CompositeResponseDecorator from './composite-response-decorator';
  
  /**
   * {@link CompositeResponse} decorator. Optimize {@link TextResponse} and
   * {@link RequestLocationResponse} usage by removing the first one from the list of responses and
   * copying the `message` to the second one.
   *
   * @author Roman Pushkin (roman.pushkin@gmail.com)
   * @extends {CompositeResponseDecorator}
   * @date 2016-11-15
   * @version 1.2
   * @since 0.1.0
   */
  export default class ConcatText extends CompositeResponseDecorator {
    /**
     * Optimize response
     *
     * @override
     */
    optimize(r1, r2, response) {
      if (r2 && r1.type === 'text' && r2.type === 'text' && !r1.important && !r2.important) {
        const m1 = r1.message;
        const m2 = r2.message;
        const separator = m1.length > 20 ? '\n' : ' ';
        response.add(new TextResponse({ message: m1 + separator + m2 }));
        return true;
      }
      return false;
    }
  }
  