module.exports = class PersistentOps {
  getLatestComment(comments) {
    if (comments && comments.length > 0) { return comments[comments.length - 1].body; }
  }

  setCookie(cname, cvalue, exdays) {
    const d = new Date();
    d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
    const expires = `expires=${d.toUTCString()}`;
    document.cookie = `${cname}=${cvalue};${expires};path=/`;
  }

  getCookie(cname) {
    const name = `${cname}=`;
    const decodedCookie = decodeURIComponent(document.cookie);
    const ca = decodedCookie.split(';');
    for (let i = 0; i < ca.length; i++) {
      let c = ca[i];
      while (c.charAt(0) == ' ') {
        c = c.substring(1);
      }
      if (c.indexOf(name) == 0) {
        return c.substring(name.length, c.length);
      }
    }
    return '';
  }
};