/*
Copyright (C) 2006 StrmnNrmn

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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

#include "stdafx.h"
#include "System/IO.h"

#include <Shlwapi.h>
#include <io.h>


namespace IO
{
	namespace File
	{
		bool	Move( const char * p_existing, const char * p_new )
		{
			return ::MoveFile( p_existing, p_new ) ? true : false;
		}

		bool	Delete( const char * p_file )
		{
			return ::DeleteFile( p_file ) ? true : false;
		}

		bool	Exists( const char * p_path )
		{
			return ::PathFileExists( p_path ) ? true : false;
		}
	}
	namespace Directory
	{
		bool	Create( const char * p_path )
		{
			return ::CreateDirectory( p_path, NULL ) ? true : false;
		}

		bool	EnsureExists( const char * p_path )
		{
			if ( IsDirectory(p_path) )
				return true;

			// Make sure parent exists,
			IO::Filename	p_path_parent;
			IO::Path::Assign( p_path_parent, p_path );
			IO::Path::RemoveBackslash( p_path_parent );
			if( IO::Path::RemoveFileSpec( p_path_parent ) )
			{
				//
				//	Recursively create parents. Need to be careful of stack overflow
				//
				if( !EnsureExists( p_path_parent ) )
					return false;
			}

			return Create( p_path );
		}

		bool	IsDirectory( const char * p_path )
		{
			return ::PathIsDirectory( p_path ) ? true : false;
		}
	}

	namespace Path
	{
		char *	Combine( char * p_dest, const char * p_dir, const char * p_file )
		{
			return ::PathCombine( p_dest, p_dir, p_file );
		}

		bool	Append( char * p_path, const char * p_more )
		{
			return ::PathAppend( p_path, p_more ) ? true : false;
		}

		const char *  FindExtension( const char * p_path )
		{
			return ::PathFindExtension( p_path );
		}

		const char *	FindFileName( const char * p_path )
		{
			return ::PathFindFileName( p_path );
		}

		char *	RemoveBackslash( char * p_path )
		{
			return ::PathRemoveBackslash( p_path );
		}

		bool	RemoveFileSpec( char * p_path )
		{
			return ::PathRemoveFileSpec( p_path ) ? true : false;
		}

		void	RemoveExtension( char * p_path )
		{
			::PathRemoveExtension( p_path );
		}

		void	AddExtension( char * p_path, const char * p_ext )
		{
			::PathAddExtension( p_path, p_ext );
		}
	}

	bool	FindFileOpen( const char * path, FindHandleT * handle, FindDataT & data )
	{
		IO::Filename name;
		Path::Combine(name, path, "*.*");
		_finddata_t	_data;
		*handle = _findfirst( name, &_data );

		if( *handle != -1 )
		{
			IO::Path::Assign( data.Name, _data.name );

			// Ignore hidden files (and '.' and '..')
			if (data.Name[0] == '.')
			{
				if (!FindFileNext(*handle, data))
				{
					FindFileClose(*handle);
					*handle = -1;
					return false;
				}
			}
			return true;
		}

		return false;
	}

	bool	FindFileNext( FindHandleT handle, FindDataT & data )
	{
		DAEDALUS_ASSERT( handle != -1, "Cannot search with invalid directory handle" );

		_finddata_t	_data;
		while ( _findnext( handle, &_data ) != -1)
		{
			// Ignore hidden files (and '.' and '..')
			if (_data.name[0] == '.')
				continue;

			IO::Path::Assign( data.Name, _data.name );
			return true;
		}

		return false;
	}

	bool	FindFileClose( FindHandleT handle )
	{
		DAEDALUS_ASSERT( handle != -1, "Trying to close an invalid directory handle" );

		return _findclose( handle ) != -1;
	}

}