text: // Licensed 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.
  
  define([
    'api'
  ], function (FauxtonAPI) {
  
    function getIndexName (doc) {
      var nameArray = [],
          indexes;
  
      nameArray = doc.get('def').fields.reduce(function (acc, el, i) {
        if (i === 0) {
          acc.push(doc.get('type') + ': ' + Object.keys(el)[0]);
        } else {
          acc.push(Object.keys(el)[0]);
        }
  
        return acc;
      }, []);
  
      if (!nameArray.length) {
        indexes = FauxtonAPI.getExtensions('mango:additionalIndexes')[0];
        nameArray = indexes.createHeader(doc);
      }
  
      return nameArray.join(', ');
    }
  
    return {
      getIndexName: getIndexName
    };
  
  });
  
  