FlarmnetDB.h

/***************************************************************************
 *   Copyright (C) 2021-2026 by Stefan Kebekus                             *
 *   stefan.kebekus@gmail.com                                              *
 *                                                                         *
 *   This program 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.                                   *
 *                                                                         *
 *   This program 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, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
 
#pragma once
 
#include <QCache>
#include <QObject>
 
#include "dataManagement/Downloadable_SingleFile.h"
 
namespace Traffic {
 

class FlarmnetDB : public QObject {
    Q_OBJECT
 
public:
    FlarmnetDB(QObject* parent=nullptr);
 
    ~FlarmnetDB() override = default;
 
    //
    // Methods
    //

    Q_INVOKABLE QString registration(const QString& key);
 
private slots:
    // The title says everything
    void clearCache();
 
    // The title says everything
    void deferredInitialization();
 
    // The title says everything
    void findFlarmnetDBDownloadable();
 
private:
    Q_DISABLE_COPY_MOVE(FlarmnetDB)
 
    auto registrationFromFile(const QString& key) -> QString;
 
    // Writes a placeholder database file with an old modification time, so
    // that the real database is downloaded at the next update check.
    void writePlaceholderFile(const QString& fileName);
 
    QPointer<DataManagement::Downloadable_SingleFile> flarmnetDBDownloadable;
 
    QCache<QString, QString> m_cache;
};
 
} // namespace Traffic