text: /*
   * Licensed to Elasticsearch B.V. under one or more contributor
   * license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright
   * ownership. Elasticsearch B.V. licenses this file to you under
   * the Apache License, Version 2.0 (the "License"); you may
   * not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  const _ = require('lodash');
  import { ConstantComponent, ListComponent, SharedComponent } from './components';
  
  export class ParamComponent extends ConstantComponent {
    constructor(name, parent, description) {
      super(name, parent);
      this.description = description;
    }
    getTerms() {
      const t = { name: this.name };
      if (this.description === '__flag__') {
        t.meta = 'flag';
      }
      else {
        t.meta = 'param';
        t.insertValue = this.name + '=';
      }
      return [t];
    }
  }
  
  export class UrlParams {
    constructor(description, defaults) {
    // This is not really a component, just a handy container to make iteration logic simpler
      this.rootComponent = new SharedComponent('ROOT');
      if (_.isUndefined(defaults)) {
        defaults = {
          'pretty': '__flag__',
          'format': ['json', 'yaml'],
          'filter_path': '',
        };
      }
      description = _.clone(description || {});
      _.defaults(description, defaults);
      _.each(description, function (pDescription, param) {
        const component = new ParamComponent(param, this.rootComponent, pDescription);
        if (Array.isArray(pDescription)) {
          new ListComponent(param, pDescription, component);
        }
        else if (pDescription === '__flag__') {
          new ListComponent(param, ['true', 'false'], component);
        }
      }, this);
    }
    getTopLevelComponents() {
      return this.rootComponent.next;
    }
  }
  