/**
 * get position of input cursor
 */
export function getCursorsPosition(ctrl) {
  /* istanbul ignore if */
  if (!ctrl) {
    return 0;
  }
  let CaretPos = 0; // IE Support
  /* istanbul ignore next */
  if (document.selection) {
    ctrl.focus();
    const Sel = document.selection.createRange();
    Sel.moveStart('character', -ctrl.value.length);
    CaretPos = Sel.text.length;
  } else if (ctrl.selectionStart || ctrl.selectionStart === '0') {
    // Firefox support
    CaretPos = ctrl.selectionStart;
  }
  return CaretPos;
}

let timer = null;
/**
 * set position of input cursor
 */
export function setCursorsPosition(ctrl, pos) {
  /* istanbul ignore if */
  if (!ctrl) {
    return;
  }
  /* istanbul ignore if */
  if (timer) {
    clearTimeout(timer);
  }

  timer = setTimeout(() => {
    /* istanbul ignore next */
    if (ctrl.setSelectionRange) {
      ctrl.focus();
      ctrl.setSelectionRange(pos, pos);
    } else if (ctrl.createTextRange) {
      const range = ctrl.createTextRange();
      range.collapse(true);
      range.moveEnd('character', pos);
      range.moveStart('character', pos);
      range.select();
    }
  }, 50);
}