// SPDX-License-Identifier: LGPL-3.0-or-later

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright (C) 2013 - 2024, nymea GmbH
* Copyright (C) 2024 - 2025, chargebyte austria GmbH
*
* This file is part of nymea.
*
* nymea is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* nymea 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with nymea. If not, see <https://www.gnu.org/licenses/>.
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

#ifndef TIMEMANAGER_H
#define TIMEMANAGER_H

#include <QTimer>
#include <QObject>
#include <QDateTime>
#include <QTimeZone>

namespace nymeaserver {

class TimeManager : public QObject
{
    Q_OBJECT
public:
    explicit TimeManager(QObject *parent = nullptr);

    QDateTime currentDateTime() const;

    // For testability only
    void stopTimer();
    void setTime(const QDateTime &dateTime);

signals:
    void tick();
    void dateTimeChanged(const QDateTime &dateTime);

protected:
    void timerEvent(QTimerEvent *event) override;

private:
    int m_timerId = 0;
    QDateTime m_lastEvent;

    // For testability
    qint64 m_overrideDifference = 0;
};

}

#endif // TIMEMANAGER_H