'use strict';
  
  Object.defineProperty(exports, "__esModule", {
      value: true
  });
  exports.default = mapValuesLimit;
  
  var _eachOfLimit = require('./eachOfLimit');
  
  var _eachOfLimit2 = _interopRequireDefault(_eachOfLimit);
  
  var _noop = require('lodash/noop');
  
  var _noop2 = _interopRequireDefault(_noop);
  
  var _once = require('./internal/once');
  
  var _once2 = _interopRequireDefault(_once);
  
  var _wrapAsync = require('./internal/wrapAsync');
  
  var _wrapAsync2 = _interopRequireDefault(_wrapAsync);
  
  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  /**
   * The same as [`mapValues`]{@link module:Collections.mapValues} but runs a maximum of `limit` async operations at a
   * time.
   *
   * @name mapValuesLimit
   * @static
   * @memberOf module:Collections
   * @method
   * @see [async.mapValues]{@link module:Collections.mapValues}
   * @category Collection
   * @param {Object} obj - A collection to iterate over.
   * @param {number} limit - The maximum number of async operations at a time.
   * @param {AsyncFunction} iteratee - A function to apply to each value and key
   * in `coll`.
   * The iteratee should complete with the transformed value as its result.
   * Invoked with (value, key, callback).
   * @param {Function} [callback] - A callback which is called when all `iteratee`
   * functions have finished, or an error occurs. `result` is a new object consisting
   * of each key from `obj`, with each transformed value on the right-hand side.
   * Invoked with (err, result).
   */
  function mapValuesLimit(obj, limit, iteratee, callback) {
      callback = (0, _once2.default)(callback || _noop2.default);
      var newObj = {};
      var _iteratee = (0, _wrapAsync2.default)(iteratee);
      (0, _eachOfLimit2.default)(obj, limit, function (val, key, next) {
          _iteratee(val, key, function (err, result) {
              if (err) return next(err);
              newObj[key] = result;
              next();
          });
      }, function (err) {
          callback(err, newObj);
      });
  }
  module.exports = exports['default'];