/*	
   * Copyright IBM Corp. 2015
   *
   * 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.
   */
  
  /**
   * see https://github.com/cloudfoundry-community/node-cfenv/issues/3
   * @author Steven R. Loomis
   * @module cfenv-credsbylabel
   * @ignore
   */
  
  
  /**
   * like getService, but match the label
   * see https://www.npmjs.com/package/cfenv#appenv-getservice-spec
   * This is implemented by calling appEnv.getServices() 
   *  - see https://www.npmjs.com/package/cfenv#appenv-getservices
   */
  var getServiceByLabel =
  module.exports.getServiceByLabel = 
  function getServiceByLabel(appEnv, regex) {
      var svcs = appEnv.getServices();
      /* istanbul ignore next */
      if(!svcs) return null;
      
      for(var svc in svcs) {
          if(regex.test(svcs[svc].label)) {
              return svcs[svc];
          }
      }
      return null;
  };
  
  /**
   * like getServiceCreds, but match the label
   * see https://www.npmjs.com/package/cfenv#appenv-getservicecreds-spec
   */
  var getServiceCredsByLabel =
  module.exports.getServiceCredsByLabel = 
  function getServiceCredsByLabel(appEnv, regex) {
      var svc = getServiceByLabel(appEnv,regex);
      if(svc) {
          return svc.credentials || /* istanbul ignore next */{};
      } else {
          return null;
      }
  };