var fs = require('fs');
var path = require('path');
var glob = require('glob');
var mkdirp = require('mkdirp');

var file = module.exports;

/**
 * Performs a glob search with the provided pattern and optional Hash of
 * options. Options can be any option supported by
 * [glob](https://github.com/isaacs/node-glob#options)
 *
 * @param {String} pattern
 * @param {Object} options
 */

file.expand = function expand(pattern, options) {
  return glob.sync(pattern, options);
};

/**
 * Performs a glob search with the provided pattern and optional Hash of
 * options, filtering results to only return files (not directories). Options
 * can be any option supported by
 * [glob](https://github.com/isaacs/node-glob#options)
 *
 * @param {String} pattern
 * @param {Object} options
 */

file.expandFiles = function expandFiles(pattern, options) {
  options = options || {};
  var cwd = options.cwd || process.cwd();
  return this.expand(pattern, options).filter(function (filepath) {
    return fs.statSync(path.join(cwd, filepath)).isFile();
  });
};

/**
 * Checks a given file path being absolute or not.
 * Borrowed from grunt's file API.
 */

file.isPathAbsolute = function () {
  var filepath = path.join.apply(path, arguments);
  return path.resolve(filepath) === filepath;
};

file.mkdir = mkdirp.sync.bind(mkdirp);