"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = isTaxID;

var _assertString = _interopRequireDefault(require("./util/assertString"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

/**
 * An Employer Identification Number (EIN), also known as a Federal Tax Identification Number,
 *  is used to identify a business entity.
 *
 * NOTES:
 *  - Prefix 47 is being reserved for future use
 *  - Prefixes 26, 27, 45, 46 and 47 were previously assigned by the Philadelphia campus.
 *
 * See `http://www.irs.gov/Businesses/Small-Businesses-&-Self-Employed/How-EINs-are-Assigned-and-Valid-EIN-Prefixes`
 * for more information.
 */

/**
 * Campus prefixes according to locales
 */
var campusPrefix = {
  'en-US': {
    andover: ['10', '12'],
    atlanta: ['60', '67'],
    austin: ['50', '53'],
    brookhaven: ['01', '02', '03', '04', '05', '06', '11', '13', '14', '16', '21', '22', '23', '25', '34', '51', '52', '54', '55', '56', '57', '58', '59', '65'],
    cincinnati: ['30', '32', '35', '36', '37', '38', '61'],
    fresno: ['15', '24'],
    internet: ['20', '26', '27', '45', '46', '47'],
    kansas: ['40', '44'],
    memphis: ['94', '95'],
    ogden: ['80', '90'],
    philadelphia: ['33', '39', '41', '42', '43', '46', '48', '62', '63', '64', '66', '68', '71', '72', '73', '74', '75', '76', '77', '81', '82', '83', '84', '85', '86', '87', '88', '91', '92', '93', '98', '99'],
    sba: ['31']
  }
};

function getPrefixes(locale) {
  var prefixes = [];

  for (var location in campusPrefix[locale]) {
    // https://github.com/gotwarlost/istanbul/blob/master/ignoring-code-for-coverage.md#ignoring-code-for-coverage-purposes
    // istanbul ignore else
    if (campusPrefix[locale].hasOwnProperty(location)) {
      prefixes.push.apply(prefixes, _toConsumableArray(campusPrefix[locale][location]));
    }
  }

  prefixes.sort();
  return prefixes;
} // tax id regex formats for various locales


var taxIdFormat = {
  'en-US': /^\d{2}[- ]{0,1}\d{7}$/
};

function isTaxID(str) {
  var locale = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'en-US';
  (0, _assertString.default)(str);

  if (locale in taxIdFormat) {
    if (!taxIdFormat[locale].test(str)) {
      return false;
    }

    return getPrefixes(locale).indexOf(str.substr(0, 2)) !== -1;
  }

  throw new Error("Invalid locale '".concat(locale, "'"));
}

module.exports = exports.default;
module.exports.default = exports.default;