'use strict';
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module.exports = readdirAsync;
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const maybe = require('call-me-maybe');
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const DirectoryReader = require('../directory-reader');
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let asyncFacade = {
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fs: require('fs'),
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forEach: require('./for-each'),
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async: true
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};
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/**
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* Returns the buffered output from an asynchronous {@link DirectoryReader},
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* via an error-first callback or a {@link Promise}.
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*
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* @param {string} dir
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* @param {object} [options]
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* @param {function} [callback]
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* @param {object} internalOptions
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*/
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function readdirAsync (dir, options, callback, internalOptions) {
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if (typeof options === 'function') {
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callback = options;
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options = undefined;
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}
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return maybe(callback, new Promise(((resolve, reject) => {
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let results = [];
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internalOptions.facade = asyncFacade;
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let reader = new DirectoryReader(dir, options, internalOptions);
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let stream = reader.stream;
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stream.on('error', err => {
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reject(err);
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stream.pause();
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});
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stream.on('data', result => {
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results.push(result);
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});
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stream.on('end', () => {
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resolve(results);
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});
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})));
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}
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