/*
 * Deskflow -- mouse and keyboard sharing utility
 * Copyright (C) 2021 Symless Ltd.
 *
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file LICENSE that should have accompanied this file.
 *
 * This package is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "TrayIcon.h"

#include "common/constants.h"
#include "gui/Logger.h"

namespace deskflow::gui {

const auto kShowRetryInterval = 1000;

void TrayIcon::setIcon(const QIcon &icon)
{
  m_icon = icon;
  if (m_pTrayIcon && !icon.isNull()) {
    m_pTrayIcon->setIcon(icon);
  }
}

void TrayIcon::showRetryLoop()
{
  // HACK: apparently this is needed to create a dbus connection, and the hide
  // is needed to make use of the object so the dbus connection doesn't get
  // optimized away by the compiler.
  // TODO: we should verify that this hack actually works.
  QSystemTrayIcon trayIcon;
  trayIcon.hide();

  if (QSystemTrayIcon::isSystemTrayAvailable()) {
    m_pTrayIcon->show();
  } else {
    // on some platforms, it's not always possible to create the tray when the
    // app starts, so keep trying until it is possible.
    logVerbose(QString("system tray not ready yet, retrying in %1 ms").arg(kShowRetryInterval));
    QTimer::singleShot(kShowRetryInterval, this, &TrayIcon::showRetryLoop);
  }
}

void TrayIcon::create(const QList<QAction *> &actions)
{
  m_pTrayIconMenu = std::make_unique<QMenu>();

  for (auto action : actions) {
    if (action) {
      m_pTrayIconMenu->addAction(action);
    } else {
      m_pTrayIconMenu->addSeparator();
    }
  }

  m_pTrayIcon = std::make_unique<QSystemTrayIcon>();
  setIcon(m_icon);

  connect(m_pTrayIcon.get(), &QSystemTrayIcon::activated, this, &TrayIcon::activated);

  m_pTrayIcon->setContextMenu(m_pTrayIconMenu.get());
  m_pTrayIcon->setToolTip(kAppName);

  showRetryLoop();
}

} // namespace deskflow::gui
