/*

    Copyright (c) 2017, Lukas Holecek <hluk@email.cz>

    This file is part of CopyQ.

    CopyQ is free software: you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation, either version 3 of the License, or

    (at your option) any later version.

    CopyQ 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 CopyQ.  If not, see <http://www.gnu.org/licenses/>.

*/

#ifndef APPLICATIONEXCEPTIONHANDLER_H

#define APPLICATIONEXCEPTIONHANDLER_H

#include <QObject>

#include <exception>

class QCoreApplication;

class QEvent;

void logException(const char *what = nullptr);

namespace detail {

class ApplicationExceptionHandlerBase : public QObject

{

    Q_OBJECT

protected:

    /// Exit application (thread-safe).

    void exit(int exitCode);

private slots:

    void exitSlot(int exitCode);

};

} // namespace detail

template <typename QtApplication>

class ApplicationExceptionHandler : public detail::ApplicationExceptionHandlerBase, public QtApplication

{

public:

    ApplicationExceptionHandler(int &argc, char **argv)

        : QtApplication(argc, argv)

    {

    }

    bool notify(QObject *receiver, QEvent *event) override

    {

        try {

            return QtApplication::notify(receiver, event);

        } catch (const std::exception &e) {

            logException(e.what());

        } catch (...) {

            logException();

        }

        detail::ApplicationExceptionHandlerBase::exit(1);

        return true;

    }

};

#endif // APPLICATIONEXCEPTIONHANDLER_H