'use strict';

function requireBluebird() {
  try {
    return require('bluebird');
  } catch(e) {
    console.error("");
    console.error("DON'T PANIC. You're running an old version of node with incomplete Promise support.");
    console.error("EASY FIX: `npm install --save bluebird`");
    console.error("");
    throw e;
  }
}

if ('undefined' === typeof Promise) {
  global.Promise = requireBluebird();
}

if ('function' !== typeof require('util').promisify) {
  require('util').promisify = requireBluebird().promisify;
}

if (!console.debug) {
  console.debug = console.log;
}

var fs = require('fs');
var fsAsync = {};
Object.keys(fs).forEach(function (key) {
  var fn = fs[key];
  if ('function' !== typeof fn || !/[a-z]/.test(key[0])) {
    return;
  }
  fsAsync[key] = require('util').promisify(fn);
});

exports.fsAsync = fsAsync;