HORIZON PROJECT

'use strict';

Object.defineProperty(exports, "__esModule", {

    value: true

});

exports.default = function (coll, iteratee, callback) {

    var eachOfImplementation = (0, _isArrayLike2.default)(coll) ? eachOfArrayLike : eachOfGeneric;

    eachOfImplementation(coll, iteratee, callback);

};

var _isArrayLike = require('lodash/isArrayLike');

var _isArrayLike2 = _interopRequireDefault(_isArrayLike);

var _eachOfLimit = require('./eachOfLimit');

var _eachOfLimit2 = _interopRequireDefault(_eachOfLimit);

var _doLimit = require('./internal/doLimit');

var _doLimit2 = _interopRequireDefault(_doLimit);

var _noop = require('lodash/noop');

var _noop2 = _interopRequireDefault(_noop);

var _once = require('./internal/once');

var _once2 = _interopRequireDefault(_once);

var _onlyOnce = require('./internal/onlyOnce');

var _onlyOnce2 = _interopRequireDefault(_onlyOnce);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// eachOf implementation optimized for array-likes

function eachOfArrayLike(coll, iteratee, callback) {

    callback = (0, _once2.default)(callback || _noop2.default);

    var index = 0,

        completed = 0,

        length = coll.length;

    if (length === 0) {

        callback(null);

    }

    function iteratorCallback(err) {

        if (err) {

            callback(err);

        } else if (++completed === length) {

            callback(null);

        }

    }

    for (; index < length; index++) {

        iteratee(coll[index], index, (0, _onlyOnce2.default)(iteratorCallback));

    }

}

// a generic version of eachOf which can handle array, object, and iterator cases.

var eachOfGeneric = (0, _doLimit2.default)(_eachOfLimit2.default, Infinity);

/**

 * Like [`each`]{@link module:Collections.each}, except that it passes the key (or index) as the second argument

 * to the iteratee.

 *

 * @name eachOf

 * @static

 * @memberOf module:Collections

 * @method

 * @alias forEachOf

 * @category Collection

 * @see [async.each]{@link module:Collections.each}

 * @param {Array|Iterable|Object} coll - A collection to iterate over.

 * @param {Function} iteratee - A function to apply to each

 * item in `coll`. The `key` is the item's key, or index in the case of an

 * array. The iteratee is passed a `callback(err)` which must be called once it

 * has completed. If no error has occurred, the callback should be run without

 * arguments or with an explicit `null` argument. Invoked with

 * (item, key, callback).

 * @param {Function} [callback] - A callback which is called when all

 * `iteratee` functions have finished, or an error occurs. Invoked with (err).

 * @example

 *

 * var obj = {dev: "/dev.json", test: "/test.json", prod: "/prod.json"};

 * var configs = {};

 *

 * async.forEachOf(obj, function (value, key, callback) {

 *     fs.readFile(__dirname + value, "utf8", function (err, data) {

 *         if (err) return callback(err);

 *         try {

 *             configs[key] = JSON.parse(data);

 *         } catch (e) {

 *             return callback(e);

 *         }

 *         callback();

 *     });

 * }, function (err) {

 *     if (err) console.error(err.message);

 *     // configs is now a map of JSON data

 *     doSomethingWith(configs);

 * });

 */

module.exports = exports['default'];