/*
    QAD - Qt ADvanced

	Ivan Pelipenko peri4ko@yandex.ru

    This program 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.

    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 Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef osm_downloader_h
#define osm_downloader_h

#include "osm_types_p.h"

#include <QMutex>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QNetworkRequest>
#include <QPixmap>
#include <QQueue>
#include <QThread>
#include <QWaitCondition>

class MapView;

class OSMDownloader: public QThread {
	Q_OBJECT

public:
	explicit OSMDownloader(MapView * p);
	~OSMDownloader();

	bool queueTile(OSM::TileIndex index, bool force = false);
	void queueTiles(QList<OSM::TileIndex> indeces);
	void clearQueue();

private:
	void run() override;
	void requestTile(OSM::TileIndex index);

	MapView * parent;
	QNetworkAccessManager * nam = nullptr;
	QString provider;
	QWaitCondition cond;
	QMutex cond_mutex;
	QQueue<OSM::TileIndex> queue;
	QSet<quint64> in_progress;

public slots:

private slots:

signals:
	void tileDone();
};


#endif