"use strict";

/**
 * Module dependencies.
 */
var _ = require("lodash"),
  glob = require("glob");

/**
 * Get files by glob patterns
 */
module.exports.getGlobbedFiles = function (globPatterns, removeRoot) {
  // For context switching
  var _this = this;

  // URL paths regex
  var urlRegex = new RegExp("^(?:[a-z]+:)?\/\/", "i");

  // The output array
  var output = [];

  // If glob pattern is array so we use each pattern in a recursive way, otherwise we use glob
  if (_.isArray(globPatterns)) {
    globPatterns.forEach(function (globPattern) {
      output = _.union(output, _this.getGlobbedFiles(globPattern, removeRoot));
    });
  } else if (_.isString(globPatterns)) {
    if (urlRegex.test(globPatterns)) {
      output.push(globPatterns);
    } else {
      var files = glob.sync(globPatterns);

      if (removeRoot) {
        files = files.map(function (file) {
          return file.replace(removeRoot, "");
        });
      }

      output = _.union(output, files);
    }
  }

  return output;
};