text: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF 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.
   */
   
  
  import Db2Formatter from './languages/Db2Formatter';
  import N1qlFormatter from './languages/N1qlFormatter';
  import PlSqlFormatter from './languages/PlSqlFormatter';
  import StandardSqlFormatter from './languages/StandardSqlFormatter';
  
  export default {
    /**
       * Format whitespaces in a query to make it easier to read.
       *
       * @param {String} query
       * @param {Object} cfg
       *  @param {String} cfg.language Query language, default is Standard SQL
       *  @param {String} cfg.indent Characters used for indentation, default is "  " (2 spaces)
       *  @param {Object} cfg.params Collection of params for placeholder replacement
       * @return {String}
       */
    format: (query, cfg) => {
      cfg = cfg || {};
  
      switch (cfg.language) {
        case 'db2':
          return new Db2Formatter(cfg).format(query);
        case 'n1ql':
          return new N1qlFormatter(cfg).format(query);
        case 'pl/sql':
          return new PlSqlFormatter(cfg).format(query);
        case 'sql':
        case undefined:
          return new StandardSqlFormatter(cfg).format(query);
        default:
          throw Error(`Unsupported SQL dialect: ${cfg.language}`);
      }
    },
  };
  