/**
 * vim: set ts=4 :
 * ================================================================
 * SourceMod
 * Copyright (C) 2004-2007 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_SYSTEM_LIBRARY_H_
#define _INCLUDE_SOURCEMOD_SYSTEM_LIBRARY_H_

#include <ILibrarySys.h>
#include "sm_platform.h"

using namespace SourceMod;

#if defined PLATFORM_WINDOWS
typedef HMODULE		LibraryHandle;
#elif defined PLATFORM_POSIX
typedef void *		LibraryHandle;
#endif

class CDirectory : public IDirectory
{
public:
	CDirectory(const char *path);
	~CDirectory();
public:
	bool MoreFiles();
	void NextEntry();
	const char *GetEntryName();
	bool IsEntryDirectory();
	bool IsEntryFile();
	bool IsEntryValid();
public:
	bool IsValid();
private:
#if defined PLATFORM_WINDOWS
	HANDLE m_dir;
	WIN32_FIND_DATAA m_fd;
#elif defined PLATFORM_POSIX
	DIR *m_dir;
	struct dirent *ep;
	char m_origpath[PLATFORM_MAX_PATH];
#endif
};

class CLibrary : public ILibrary
{
public:
	CLibrary(LibraryHandle me);
	~CLibrary();
public:
	void CloseLibrary();
	void *GetSymbolAddress(const char *symname);
private:
	LibraryHandle m_lib;
};

class LibrarySystem : public ILibrarySys
{
public:
	ILibrary *OpenLibrary(const char *path, char *error, size_t maxlength);
	IDirectory *OpenDirectory(const char *path);
	void CloseDirectory(IDirectory *dir);
	bool PathExists(const char *path);
	bool IsPathFile(const char *path);
	bool IsPathDirectory(const char *path);
	void GetPlatformError(char *error, size_t maxlength);
	size_t PathFormat(char *buffer, size_t len, const char *fmt, ...);
	const char *GetFileExtension(const char *filename);
	bool CreateFolder(const char *path);
	size_t GetFileFromPath(char *buffer, size_t maxlength, const char *path);
};

extern LibrarySystem g_LibSys;

#endif //_INCLUDE_SOURCEMOD_SYSTEM_LIBRARY_H_