/**

 * vim: set ts=4 :

 * =============================================================================

 * SourceMod Updater Extension

 * Copyright (C) 2004-2009 AlliedModders LLC.  All rights reserved.

 * =============================================================================

 *

 * This program is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, version 3.0, as published by the

 * Free Software Foundation.

 * 

 * 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, see <http://www.gnu.org/licenses/>.

 *

 * As a special exception, AlliedModders LLC gives you permission to link the

 * code of this program (as well as its derivative works) to "Half-Life 2," the

 * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

 * by the Valve Corporation.  You must obey the GNU General Public License in

 * all respects for all other code used.  Additionally, AlliedModders LLC grants

 * this exception to all derivative works.  AlliedModders LLC defines further

 * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

 * or <http://www.sourcemod.net/license.php>.

 *

 * Version: $Id$

 */

#ifndef _INCLUDE_SOURCEMOD_UPDATER_H_

#define _INCLUDE_SOURCEMOD_UPDATER_H_

#include <IWebternet.h>

#include <ITextParsers.h>

#include <sh_string.h>

#include "MemoryDownloader.h"

using namespace SourceHook;

struct UpdatePart

{

	UpdatePart* next;

	char *file;

	char *data;

	size_t length;

};

namespace SourceMod

{

	class UpdateReader : 

		public ITextListener_SMC

	{

	public:

		UpdateReader();

		~UpdateReader();

	public: /* ITextListener_SMC */

		void ReadSMC_ParseStart();

		SMCResult ReadSMC_NewSection(const SMCStates *states, const char *name);

		SMCResult ReadSMC_KeyValue(const SMCStates *states, const char *key, const char *value);

		SMCResult ReadSMC_LeavingSection(const SMCStates *states);

	public:

		void PerformUpdate(const char *url);

		UpdatePart *DetachParts();

	private:

		void HandleFile();

		void HandleFolder(const char *folder);

		void LinkPart(UpdatePart *part);

	private:

		IWebTransfer *xfer;

		MemoryDownloader mdl;

		unsigned int ustate;

		unsigned int ignoreLevel;

		SourceHook::String curfile;

		SourceHook::String url;

		char checksum[33];

		UpdatePart *partFirst;

		UpdatePart *partLast;

		const char *update_url;

	};

}

#endif /* _INCLUDE_SOURCEMOD_UPDATER_H_ */