var baseForOwn = require('./internal/baseForOwn'),
    baseIteratee = require('./internal/baseIteratee');

/**
 * Creates an object with the same keys as `object` and values generated by
 * running each own enumerable property of `object` through `iteratee`. The
 * iteratee function is invoked with three arguments: (value, key, object).
 *
 * @static
 * @memberOf _
 * @category Object
 * @param {Object} object The object to iterate over.
 * @param {Function|Object|string} [iteratee=_.identity] The function invoked per iteration.
 * @returns {Object} Returns the new mapped object.
 * @example
 *
 * var users = {
 *   'fred':    { 'user': 'fred',    'age': 40 },
 *   'pebbles': { 'user': 'pebbles', 'age': 1 }
 * };
 *
 * _.mapValues(users, function(o) { return o.age; });
 * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
 *
 * // using the `_.property` iteratee shorthand
 * _.mapValues(users, 'age');
 * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
 */
function mapValues(object, iteratee) {
  var result = {};
  iteratee = baseIteratee(iteratee, 3);

  baseForOwn(object, function(value, key, object) {
    result[key] = iteratee(value, key, object);
  });
  return result;
}

module.exports = mapValues;
