/**
 * Copyright (c) 2014, Facebook, Inc. All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * 
 */

'use strict';

const Console = require('./Console');
const FakeTimers = require('./FakeTimers');
const JasmineFormatter = require('./JasmineFormatter');
const NullConsole = require('./NullConsole');var _require =





require('./messages');const formatExecError = _require.formatExecError;const formatResultsErrors = _require.formatResultsErrors;const formatStackTrace = _require.formatStackTrace;
const clearLine = require('./clearLine');
const fileExists = require('jest-file-exists');
const installCommonGlobals = require('./installCommonGlobals');
const mkdirp = require('mkdirp');
const path = require('path');
const separateMessageFromStack = require('./separateMessageFromStack');

const escapePathForRegex = dir => {
  if (path.sep === '\\') {
    // Replace "\" with "/" so it's not escaped by escapeStrForRegex.
    // replacePathSepForRegex will convert it back.
    dir = dir.replace(/\\/g, '/');
  }
  return replacePathSepForRegex(escapeStrForRegex(dir));
};

const escapeStrForRegex =
string => string.replace(/[[\]{}()*+?.,\\^$|#\s]/g, '\\$&');

const replacePathSepForRegex = string => {
  if (path.sep === '\\') {
    return string.replace(/(\/|\\(?!\.))/g, '\\\\');
  }
  return string;
};

const createDirectory = path => {
  try {
    mkdirp.sync(path, '777');
  } catch (e) {
    if (e.code !== 'EEXIST') {
      throw e;
    }
  }
};

const getPackageRoot = () => {
  const cwd = process.cwd();

  // Is the cwd somewhere within an npm package?
  let root = cwd;
  while (!fileExists(path.join(root, 'package.json'))) {
    if (root === '/' || root.match(/^[A-Z]:\\/)) {
      root = cwd;
      break;
    }
    root = path.resolve(root, '..');
  }

  return root;
};

const warnAboutUnrecognizedOptions = (argv, options) => {
  const yargsSpecialOptions = ['$0', '_', 'help'];
  const allowedOptions = Object.keys(options).reduce((acc, option) =>
  acc.
  add(option).
  add(options[option].alias),
  new Set(yargsSpecialOptions));
  const unrecognizedOptions = Object.keys(argv).filter(arg =>
  !allowedOptions.has(arg));

  if (unrecognizedOptions.length) {
    console.warn('Unrecognized options: ' + unrecognizedOptions.join(', '));
  }
};

module.exports = {
  Console,
  FakeTimers,
  JasmineFormatter,
  NullConsole,
  clearLine,
  createDirectory,
  escapePathForRegex,
  escapeStrForRegex,
  formatStackTrace,
  formatResultsErrors,
  formatExecError,
  getPackageRoot,
  installCommonGlobals,
  replacePathSepForRegex,
  separateMessageFromStack,
  warnAboutUnrecognizedOptions };