text: /**
      Licensed to OffGrid Networks (OGN) under one
      or more contributor license agreements.  See the NOTICE file
      distributed with this work for additional information
      regarding copyright ownership.  OGN 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.
  */
  
  var nodekit_util = require('./util');
  var Q            = require('q');
  var NodeKitError = require('nodekit-cli-lib')['nodekit-common'].NodeKitError;
  var knownPlatforms = require('../platforms/platforms');
  
  /**
   * Runs requirements check against platforms specified in 'platfoms' argument
   *
   * @param  {String[]} platforms List of platforms for requirements check. If
   *   none, all platforms, added to project will be checked
   *
   * @return {Promise<Object>}    Promise fullfilled with map of platforms and
   *   requirements check results for each platform.
   */
  module.exports = function check_reqs(platforms) {
      return Q().then(function() {
          var platforms = nodekit_util.preProcessOptions(platforms).platforms;
  
          return Q.allSettled(platforms.map(function (platform) {
              return knownPlatforms.getPlatformApi(platform).requirements();
          }))
          .then(function (settledChecks) {
              var res = {};
              settledChecks.reduce(function (result, settledCheck, idx) {
                  var platformName = platforms[idx];
                  result[platformName] = settledCheck.state === 'fulfilled' ?
                      settledCheck.value :
                      new NodeKitError(settledCheck.reason);
                  return result;
              }, res);
              return res;
          });
      });
  };
  