private void doVoidTicket() {
    try {
      Ticket selectedTicket = getFirstSelectedTicket();

      if (selectedTicket == null) {
        return;
      }

      if (!selectedTicket.getTotalAmount().equals(selectedTicket.getDueAmount())) {
        POSMessageDialog.showMessage(POSConstants.PARTIAL_PAID_VOID_ERROR);
        return;
      }

      Ticket ticketToVoid = TicketDAO.getInstance().loadFullTicket(selectedTicket.getId());

      VoidTicketDialog voidTicketDialog = new VoidTicketDialog(Application.getPosWindow(), true);
      voidTicketDialog.setTicket(ticketToVoid);
      voidTicketDialog.open();

      if (!voidTicketDialog.isCanceled()) {
        updateView();
      }
    } catch (Exception e) {
      POSMessageDialog.showError(POSConstants.ERROR_MESSAGE, e);
    }
  }
  private void doSplitTicket() {
    try {
      Ticket selectedTicket = getFirstSelectedTicket();

      if (selectedTicket == null) {
        return;
      }

      if (!selectedTicket.getTotalAmount().equals(selectedTicket.getDueAmount())) {
        POSMessageDialog.showMessage(POSConstants.PARTIAL_PAID_VOID_ERROR);
        return;
      }

      // initialize the ticket.
      Ticket ticket = TicketDAO.getInstance().loadFullTicket(selectedTicket.getId());

      SplitTicketDialog dialog = new SplitTicketDialog();
      dialog.setTicket(ticket);
      dialog.open();

      updateView();
    } catch (Exception e) {
      POSMessageDialog.showError(POSConstants.ERROR_MESSAGE, e);
    }
  }
  private void doReopenTicket() {
    try {

      int ticketId = NumberSelectionDialog2.takeIntInput(POSConstants.ENTER_TICKET_ID);

      if (ticketId == -1) {
        return;
      }

      Ticket ticket = TicketService.getTicket(ticketId);

      if (ticket == null) {
        throw new PosException(
            POSConstants.NO_TICKET_WITH_ID + " " + ticketId + " " + POSConstants.FOUND);
      }

      if (!ticket.isClosed()) {
        throw new PosException(POSConstants.TICKET_IS_NOT_CLOSED);
      }

      String ticketTotalAmount =
          Application.getCurrencySymbol()
              + " "
              + NumberUtil.formatToCurrency(ticket.getTotalAmount());
      String amountMessage =
          "<span style='color: red; font-weight: bold;'>" + ticketTotalAmount + "</span>";
      String message =
          "<html><body>Ticket amount is "
              + ticketTotalAmount
              + ". To reopen ticket, you need to refund that amount to system.<br/>Please press <b>OK</b> after you refund amount "
              + amountMessage
              + "</body></html>";

      int option =
          JOptionPane.showOptionDialog(
              this,
              message,
              "Alert!",
              JOptionPane.OK_CANCEL_OPTION,
              JOptionPane.INFORMATION_MESSAGE,
              null,
              null,
              null);
      if (option != JOptionPane.OK_OPTION) {
        return;
      }

      TicketService.refundTicket(ticket);
      editTicket(ticket);

    } catch (PosException e) {
      POSMessageDialog.showError(this, e.getLocalizedMessage());
    } catch (Exception e) {
      POSMessageDialog.showError(this, POSConstants.ERROR_MESSAGE, e);
    }
  }