!7

sclass NotebookLidStatus extends DynBigNumber {
  transient Bool last;
  transient long openSince;
  
  void start {
    super.start();
    setDescription("Notebook Lid");
    ownTimer(doEvery(2.0, r updateMe));
  }
  
  void update {
    Bool open = isNotebookLidOpen();
    if (isTrue(open) && isFalse(openLast))
      openSince = now();
    openLast = open;
    setValue(now() < openSince + 10000 ? "JUST OPENED"
      : nullFalseTrue(open, "?", "CLOSED", "OPEN"));
  }
}