/**

 * vim: set ts=4 :

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

 * SourceMod (C)2004-2008 AlliedModders LLC.  All rights reserved.

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

 *

 * This file is part of the SourceMod/SourcePawn SDK.

 *

 * 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: $Id$

 */

#if defined _files_included

 #endinput

#endif

#define _files_included

/**

 * @global All paths in SourceMod natives are relative to the mod folder 

 * unless otherwise noted.

 *

 * Most functions in SourceMod (at least, ones that deal with direct 

 * file manipulation) will support an alternate path specification.

 *

 * If the path starts with the string "file://" and the PathType is 

 * not relative, then the "file://" portion is stripped off, and the 

 * rest of the path is used without any modification (except for 

 * correcting slashes).  This can be used to override the path 

 * builder to supply alternate absolute paths.  Examples:

 *

 * file://C:/Temp/file.txt

 * file:///tmp/file.txt

 */

/**

 * File inode types.

 */

enum FileType

{

	FileType_Unknown = 0,	/* Unknown file type (device/socket) */

	FileType_Directory = 1,	/* File is a directory */

	FileType_File = 2,		/* File is a file */

};

/**

 * File time modes.

 */

enum FileTimeMode

{

	FileTime_LastAccess = 0,	/* Last access (does not work on FAT) */

	FileTime_Created = 1,		/* Creation (does not work on FAT) */

	FileTime_LastChange = 2,	/* Last modification */

};

#define PLATFORM_MAX_PATH		256		/**< Maximum path length. */

#define SEEK_SET 0						/**< Seek from start. */

#define SEEK_CUR 1						/**< Seek from current position. */

#define SEEK_END 2						/**< Seek from end position. */

/**

 * Path types.

 */

enum PathType

{

	Path_SM,		/**< SourceMod root folder */	

};

/**

 * Builds a path relative to the SourceMod folder.  This should be used instead of 

 * directly referencing addons/sourcemod, in case users change the name of their 

 * folder layout.

 *

 * @param type			Type of path to build as the base.

 * @param buffer		Buffer to store the path.

 * @param maxlength		Maximum length of buffer.

 * @param fmt			Format string.

 * @param ...			Format arguments.

 * @return				Number of bytes written to buffer (not including null terminator).

 */

native BuildPath(PathType:type, String:buffer[], maxlength, const String:fmt[], any:...);

/**

 * Opens a directory/folder for contents enumeration.

 *

 * @note Directories are closed with CloseHandle().

 * @note Directories Handles can be cloned.

 * @note OpenDirectory() supports the "file://" notation.

 *

 * @param path			Path to open.

 * @return				A Handle to the directory, INVALID_HANDLE on open error.

 */

native Handle:OpenDirectory(const String:path[]);

/**

 * Reads the current directory entry as a local filename, then moves to the next file.

 *

 * @note Contents of buffers are undefined when returning false.

 * @note Both the '.' and '..' automatic directory entries will be retrieved for Windows and Linux.

 * 

 * @param dir			Handle to a directory.

 * @param buffer		String buffer to hold directory name.

 * @param maxlength		Maximum size of string buffer.

 * @param type			Optional variable to store the file type.

 * @return				True on success, false if there are no more files to read.

 * @error				Invalid or corrupt Handle. 

 */

native bool:ReadDirEntry(Handle:dir, String:buffer[], maxlength, &FileType:type=FileType_Unknown);

/**

 * Opens a file.

 *

 * @note Files are closed with CloseHandle().

 * @note File Handles can be cloned.

 * @note OpenFile() supports the "file://" notation.

 *

 * @param file			File to open.

 * @param mode			Open mode.

 * @return				A Handle to the file, INVALID_HANDLE on open error.

 */

native Handle:OpenFile(const String:file[], const String:mode[]);

/**

 * Deletes a file.

 *

 * @param path			Path of the file to delete.

 * @return				True on success, false otherwise.

 */

native bool:DeleteFile(const String:path[]);

/**

 * Reads a line from a text file.

 *

 * @param hndl			Handle to the file.

 * @param buffer		String buffer to hold the line.

 * @param maxlength		Maximum size of string buffer.	

 * @return				True on success, false otherwise.

 */

native bool:ReadFileLine(Handle:hndl, String:buffer[], maxlength);

/**

 * Reads binary data from a file.

 *

 * @param hndl			Handle to the file.

 * @param items			Array to store each item read.  

 * @param num_items		Number of items to read into the array.

 * @param size			Size of each element, in bytes, to be read.

 *						Valid sizes are 1, 2, or 4.

 * @return				Number of elements read, or -1 on error.

 */

native ReadFile(Handle:hndl, items[], num_items, size);

/**

 * Reads a UTF8 or ANSI string from a file.

 *

 * @param hndl			Handle to the file.

 * @param buffer		Buffer to store the string.

 * @param max_size		Maximum size of the string buffer.

 * @param read_count	If -1, reads until a null terminator is encountered in 

 *						the file.  Otherwise, read_count bytes are read 

 *						into the buffer provided.  In this case the buffer 

 *						is not explicitly null terminated, and the buffer 

 *						will contain any null terminators read from the file.

 * @return				Number of characters written to the buffer, or -1 

 *						if an error was encountered.

 * @error				Invalid Handle, or read_count > max_size.

 */

native ReadFileString(Handle:hndl, String:buffer[], max_size, read_count=-1);

/**

 * Writes binary data to a file.

 *

 * @param hndl			Handle to the file.

 * @param items			Array of items to write.  The data is read directly. 

 *						That is, in 1 or 2-byte mode, the lower byte(s) in 

 *						each cell are used directly, rather than performing 

 *						any casts from a 4-byte number to a smaller number.

 * @param num_items		Number of items in the array.

 * @param size			Size of each item in the array in bytes.  

 *						Valid sizes are 1, 2, or 4.

 * @return				True on success, false on error.

 * @error				Invalid Handle.

 */

native bool:WriteFile(Handle:hndl, const items[], num_items, size);

/**

 * Writes a binary string to a file.

 *

 * @param hndl			Handle to th efile.

 * @param buffer		String to write.

 * @param term			True to append NUL terminator, false otherwise.

 * @return				True on success, false on error.

 * @error				Invalid Handle.

 */

native bool:WriteFileString(Handle:hndl, const String:buffer[], bool:term);

/**

 * Writes a line of text to a text file.  A newline is automatically appended.

 *

 * @param hndl			Handle to the file.

 * @param format		Formatting rules.

 * @param ...			Variable number of format parameters.

 * @return				True on success, false otherwise.

 * @error				Invalid Handle.

 */

native bool:WriteFileLine(Handle:hndl, const String:format[], any:...);

/**

 * Reads a single binary cell from a file.

 *

 * @param hndl			Handle to the file.

 * @param data			Variable to store the data read.

 * @param size			Size of the data to read in bytes.  Valid 

 *						sizes are 1, 2, or 4 bytes.

 * @return				Number of elements read (max 1), or -1 on error.

 * @error				Invalid Handle.

 */

stock ReadFileCell(Handle:hndl, &data, size)

{

	new array[1], ret;

	if ((ret = ReadFile(hndl, array, 1, size)) == 1)

	{

		data = array[0];

	}

	return ret;

}

/**

 * Writes a single binary cell to a file.

 *

 * @param hndl			Handle to the file.

 * @param data			Cell to write to the file.

 * @param size			Size of the data to read in bytes.  Valid 

 *						sizes are 1, 2, or 4 bytes.  If the size 

 *						is less than 4 bytes, the data is truncated 

 *						rather than casted.  That is, only the lower 

 *						bits will be read.

 * @return				True on success, false on error.

 * @error				Invalid Handle.

 */

stock bool:WriteFileCell(Handle:hndl, data, size)

{

	new array[1];

	array[0] = data;

	return WriteFile(hndl, array, 1, size);

}

/**

 * Tests if the end of file has been reached.

 *

 * @param file			Handle to the file.

 * @return				True if end of file has been reached, false otherwise.

 * @error				Invalid Handle.

 */

native bool:IsEndOfFile(Handle:file);

/**

 * Sets the file position indicator.

 *

 * @param file			Handle to the file.

 * @param position		Position relative to what is specified in whence.

 * @param where			SEEK_ constant value of where to see from.

 * @return				True on success, false otherwise.

 * @error				Invalid Handle.

 */

native bool:FileSeek(Handle:file, position, where);

/**

 * Get current position in the file.

 *

 * @param file			Handle to the file.

 * @return				Value for the file position indicator.

 * @error				Invalid Handle.

 */

native FilePosition(Handle:file);

/**

 * Checks if a file exists.

 *

 * @param path			Path to the file.

 * @param use_valve_fs	If true, the Valve file system will be used instead.

 *						This can be used to check for the existance of files 

 *						inside GCFs or the game cache, rather than solely files 

 *						that are on disk.

 * @return				True if the file exists, false otherwise.

 */

native bool:FileExists(const String:path[], bool:use_valve_fs=false);

/**

 * Renames a file.

 *

 * @param newpath		New path to the file.

 * @param oldpath		Path to the existing file.

 * @return				True on success, false otherwise.

 */

native bool:RenameFile(const String:newpath[], const String:oldpath[]);

/**

 * Checks if a directory exists.

 *

 * @param path			Path to the directory.

 * @return				True if the directory exists, false otherwise.

 */

native bool:DirExists(const String:path[]);

/**

 * Get the file size in bytes.

 *

 * @param path			Path to the file.

 * @return				File size in bytes, -1 if file not found.

 */

native FileSize(const String:path[]);

/**

 * Flushes a file's buffered output; any buffered output

 * is immediately written to the file.

 *

 * @param file			Handle to the file.

 * @return				True on success, false on failure.

 */

native FlushFile(Handle:file);

/**

 * Removes a directory.

 * @note On most Operating Systems you cannot remove a directory which has files inside it.

 *

 * @param path			Path to the directory.

 * @return				True on success, false otherwise.

 */

native bool:RemoveDir(const String:path[]);

#define FPERM_U_READ		0x0100	/* User can read. */

#define FPERM_U_WRITE		0x0080	/* User can write. */

#define FPERM_U_EXEC		0x0040	/* User can exec. */

#define FPERM_G_READ		0x0020	/* Group can read. */

#define FPERM_G_WRITE		0x0010	/* Group can write. */

#define FPERM_G_EXEC		0x0008	/* Group can exec. */

#define FPERM_O_READ		0x0004	/* Anyone can read. */

#define FPERM_O_WRITE		0x0002	/* Anyone can write. */

#define FPERM_O_EXEC		0x0001	/* Anyone can exec. */

/**

 * Creates a directory.

 *

 * @param path			Path to create.

 * @param mode			Permissions (default is o=rx,g=rx,u=rwx).  Note that folders must have 

 *						the execute bit set on Linux.  On Windows, the mode is ignored.

 */

native bool:CreateDirectory(const String:path[], mode);

/**

 * Returns a file timestamp as a unix timestamp.

 *

 * @param file			File name.

 * @param tmode			Time mode.

 * @return				Time value, or -1 on failure.

 */

native GetFileTime(const String:file[], FileTimeMode:tmode);

/**

 * Same as LogToFile(), except uses an open file Handle.  The file must 

 * be opened in text appending mode.

 *

 * @param hndl			Handle to the file.

 * @param message		Message format.

 * @param ...			Message format parameters.

 * @noreturn

 * @error				Invalid Handle.

 */

native LogToOpenFile(Handle:hndl, const String:message[], any:...);

/**

 * Same as LogToFileEx(), except uses an open file Handle.  The file must 

 * be opened in text appending mode.

 *

 * @param hndl			Handle to the file.

 * @param message		Message format.

 * @param ...			Message format parameters.

 * @noreturn

 * @error				Invalid Handle.

 */

native LogToOpenFileEx(Handle:hndl, const String:message[], any:...);