/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 2
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#ifndef BACKENDS_CLOUD_DOWNLOADREQUEST_H
#define BACKENDS_CLOUD_DOWNLOADREQUEST_H

#include "backends/networking/curl/request.h"
#include "backends/networking/curl/networkreadstream.h"
#include "backends/cloud/storage.h"
#include "common/file.h"

namespace Cloud {

#define DOWNLOAD_REQUEST_BUFFER_SIZE 1 * 1024 * 1024

class DownloadRequest: public Networking::Request {
	Storage::BoolCallback _boolCallback;
	Common::DumpFile *_localFile;
	Common::String _remoteFileId;
	Storage *_storage;
	Networking::NetworkReadStream *_remoteFileStream;
	Request *_workingRequest;
	bool _ignoreCallback;
	byte *_buffer;

	void start();
	void streamCallback(Networking::NetworkReadStreamResponse response);
	void streamErrorCallback(Networking::ErrorResponse error);
	void finishDownload(bool success);
	virtual void finishError(Networking::ErrorResponse error);

public:
	DownloadRequest(Storage *storage, Storage::BoolCallback callback, Networking::ErrorCallback ecb, Common::String remoteFileId, Common::DumpFile *dumpFile);
	virtual ~DownloadRequest();

	virtual void handle();
	virtual void restart();

	/** Returns a number in range [0, 1], where 1 is "complete". */
	double getProgress() const;
};

} // End of namespace Cloud

#endif