/* eslint-disable */

/**
 * Get the index to use for pluralization.
 * The plural rules are derived from code of the Zend Framework.
 *
 * @category    Zend
 * @package     Zend_Locale
 * @public      https://github.com/zendframework/zf1/blob/master/library/Zend/Translate/Plural.php
 * @copyright   2005-2015 Zend Technologies USA Inc. http://www.zend.com
 * @license     http://framework.zend.com/license     New BSD License
 *
 * @param  {String}  locale
 * @param  {Number}  number
 * @return {Number}
 */
export function getPluralIndex(locale: string, number: number) {
  locale = locale.replace('-', '_');

  if (locale === 'pt_BR') {
    // temporary set a locale for brazilian
    locale = 'xbr';
  }

  if (locale.length > 3) {
    locale = locale.substring(0, locale.lastIndexOf('_'));
  }

  switch (locale) {
    case 'az':
    case 'bo':
    case 'dz':
    case 'id':
    case 'ja':
    case 'jv':
    case 'ka':
    case 'km':
    case 'kn':
    case 'ko':
    case 'ms':
    case 'th':
    case 'tr':
    case 'vi':
    case 'zh':
      return 0;
    case 'af':
    case 'bn':
    case 'bg':
    case 'ca':
    case 'da':
    case 'de':
    case 'el':
    case 'en':
    case 'eo':
    case 'es':
    case 'et':
    case 'eu':
    case 'fa':
    case 'fi':
    case 'fo':
    case 'fur':
    case 'fy':
    case 'gl':
    case 'gu':
    case 'ha':
    case 'he':
    case 'hu':
    case 'is':
    case 'it':
    case 'ku':
    case 'lb':
    case 'ml':
    case 'mn':
    case 'mr':
    case 'nah':
    case 'nb':
    case 'ne':
    case 'nl':
    case 'nn':
    case 'no':
    case 'om':
    case 'or':
    case 'pa':
    case 'pap':
    case 'ps':
    case 'pt':
    case 'so':
    case 'sq':
    case 'sv':
    case 'sw':
    case 'ta':
    case 'te':
    case 'tk':
    case 'ur':
    case 'zu':
      return number === 1 ? 0 : 1;
    case 'am':
    case 'bh':
    case 'fil':
    case 'fr':
    case 'gun':
    case 'hi':
    case 'ln':
    case 'mg':
    case 'nso':
    case 'xbr':
    case 'ti':
    case 'wa':
      return number === 0 || number === 1 ? 0 : 1;
    case 'be':
    case 'bs':
    case 'hr':
    case 'ru':
    case 'sr':
    case 'uk':
      return number % 10 === 1 && number % 100 !== 11
        ? 0
        : number % 10 >= 2 && number % 10 <= 4 && (number % 100 < 10 || number % 100 >= 20)
        ? 1
        : 2;
    case 'cs':
    case 'sk':
      return number === 1 ? 0 : number >= 2 && number <= 4 ? 1 : 2;
    case 'ga':
      return number === 1 ? 0 : number === 2 ? 1 : 2;
    case 'lt':
      return number % 10 === 1 && number % 100 !== 11
        ? 0
        : number % 10 >= 2 && (number % 100 < 10 || number % 100 >= 20)
        ? 1
        : 2;
    case 'sl':
      return number % 100 === 1 ? 0 : number % 100 === 2 ? 1 : number % 100 === 3 || number % 100 === 4 ? 2 : 3;
    case 'mk':
      return number % 10 === 1 ? 0 : 1;
    case 'mt':
      return number === 1
        ? 0
        : number === 0 || (number % 100 > 1 && number % 100 < 11)
        ? 1
        : number % 100 > 10 && number % 100 < 20
        ? 2
        : 3;
    case 'lv':
      return number === 0 ? 0 : number % 10 === 1 && number % 100 !== 11 ? 1 : 2;
    case 'pl':
      return number === 1
        ? 0
        : number % 10 >= 2 && number % 10 <= 4 && (number % 100 < 12 || number % 100 > 14)
        ? 1
        : 2;
    case 'cy':
      return number === 1 ? 0 : number === 2 ? 1 : number === 8 || number === 11 ? 2 : 3;
    case 'ro':
      return number === 1 ? 0 : number === 0 || (number % 100 > 0 && number % 100 < 20) ? 1 : 2;
    case 'ar':
      return number === 0
        ? 0
        : number === 1
        ? 1
        : number === 2
        ? 2
        : number >= 3 && number <= 10
        ? 3
        : number >= 11 && number <= 99
        ? 4
        : 5;
    default:
      return 0;
  }
}