// ==UserScript==
// @name         Subscene
// @namespace    https://github.com/fabiencrassat
// @version      0.1.3
// @description  Filter with english language!
// @author       Fabien Crassat <fabien@crassat.com>
// @match        https://subscene.com/*
// @grant        none
// @require      https://cdn.jsdelivr.net/npm/js-cookie@2/src/js.cookie.min.js
// @downloadURL https://update.greasyfork.icu/scripts/367393/Subscene.user.js
// @updateURL https://update.greasyfork.icu/scripts/367393/Subscene.meta.js
// ==/UserScript==

/* global Cookies */
'use strict';

const SEPARATOR_VALUES = ',';

const languages = {
  arePresents() {
    const languageFilterCookie = Cookies.get(languages.key);
    if (!languageFilterCookie) {
      return false;
    }
    if (languageFilterCookie !== languages.getKeyValues()) {
      return false;
    }
    return true;
  },
  domain: '.subscene.com',
  getKeyValues() {
    return Object.keys(languages.values).join(SEPARATOR_VALUES);
  },
  key: 'LanguageFilter',
  path: '/',
  setCookie() {
    Cookies.set(languages.key, languages.getKeyValues(), {
      domain: languages.domain,
      path: languages.path,
      secure: true
    });
  },
  values: {
    13: 'english'
  }
};

(function subscene() {
  /* Main */
  if (languages.arePresents()) {
    return;
  }
  languages.setCookie();
  location.reload();
}());