import eachOfLimit from './eachOfLimit.js'
import awaitify from './internal/awaitify.js'

/**
 * The same as [`eachOf`]{@link module:Collections.eachOf} but runs only a single async operation at a time.
 *
 * @name eachOfSeries
 * @static
 * @memberOf module:Collections
 * @method
 * @see [async.eachOf]{@link module:Collections.eachOf}
 * @alias forEachOfSeries
 * @category Collection
 * @param {Array|Iterable|AsyncIterable|Object} coll - A collection to iterate over.
 * @param {AsyncFunction} iteratee - An async function to apply to each item in
 * `coll`.
 * 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).
 * @returns {Promise} a promise, if a callback is omitted
 */
function eachOfSeries(coll, iteratee, callback) {
    return eachOfLimit(coll, 1, iteratee, callback)
}
export default awaitify(eachOfSeries, 3);