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/*
# Copyright (c) 2010,2011 - RZ Uni Freiburg
# Copyright (c) 2010,2011 - OpenSLX Project
#
# This program/file is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your feedback to feedback@openslx.org
#
# General information about OpenSLX can be found under http://openslx.org
#
#
# 	   Helper class managing downloads.
#
*/

#ifndef DOWNLOADMANAGER_H
#define DOWNLOADMANAGER_H

#include "fbgui.h"
#include <QObject>
#include <QDir>
#include <QMap>
#include <QtNetwork>
#include <QTime>

extern bool debug;
extern QUrl baseURL;
extern QString binPath;
extern QString downloadPath;
extern int updateInterval;


class downloadManager : public QObject
{
	Q_OBJECT

public:
	downloadManager();

private:
	void processDownloadRequest(QUrl& url);
	QNetworkAccessManager* qnam;
	QQueue<QUrl> dlQ;
	QNetworkRequest request;
	QNetworkReply* currentDownload;
	QFile outfile;
	QDir downloadDir;
	QTime dltime;
	bool dip;
	int currentProgress, lastProgress;

	static int downloaded;
	QString currentTargetFilename;

signals:
	void finished();
	void downloadInfo(QString filename, double filesize);
	void updateProgress(int percent, double speed, QString unit);
	void downloadQueueEmpty();

public slots:
	void downloadFile(QUrl& fileUrl);
	void downloadFile(QString& fileUrl);

private slots:
	void startNextDownload();
	void downloadReady();
	void processMetaInfo();
	void downloadProgress(qint64 bytesIn, qint64 bytesTotal);
	void downloadFinished();
};

#endif // DOWNLOADMANAGER_H