/*
  Sortt

  @License MIT
  @Author 6543
*/

//creat global function with main routine
window.sortt=function(normsort,revsort,isdefault){
  //sortTable [normsort] (revsort) (isdefault)

  //normsort is needet
  if (typeof normsort  === 'undefined') return false;

  //default values of optinal parameters
  if (typeof revsort  === 'undefined') revsort = "";
  if (typeof isdefault  === 'undefined') isdefault = false;
  if (!(typeof isdefault  === 'boolean')) isdefault = false;

  // parse URL
  /*  script check if url has already a sort=
        NO: if sort=“” indikates default (with * prefix) set url_sort=
        YES: set url_sort variable
  */
  let url = new URL(window.location);
  let url_sort = url.searchParams.get("sort");
  if ((url_sort === null) && isdefault) url_sort = normsort;

  // generate new URL
  /*  script check if url_sort and sort attribute is same
        NO: generate URL with sort param
        YES: check if reverse attribute exist -> YES: generate URL with reverse sort param
  */

  if (url_sort != normsort) {
    url.searchParams.delete("sort");
    url.searchParams.append("sort",normsort);
  } else if (revsort != "") {
    url.searchParams.delete("sort");
    url.searchParams.append("sort",revsort);
  }

  //open url
  window.location.replace(url.href);
};