/*
 * This file is a part of CMSLU -- Content Management System like Unix
 * and is not publicly distributed
 * 
 * Copyright (c) 2009, Tomasz Sowa
 * All rights reserved.
 * 
 */
 
#include "mountparser.h"
#include "data.h"



bool MountParser::IsWhite(int c)
{
	if( c==' ' || c=='\t' || c==13 )
		return true;
	
return false;
}


void MountParser::SkipWhite()
{
	while( IsWhite(*pinput) )
		++pinput;
}


void MountParser::SkipLine()
{
	while( *pinput && *pinput != 10 )
		++pinput;
		
	if( *pinput == 10 )
		++pinput;
}



void MountParser::ReadWord(std::string & res)
{
	res.clear();
	
	while( *pinput && *pinput!=10 && !IsWhite(*pinput) )
	{
		res += *pinput;
		++pinput;
	}
}



void MountParser::ReadMountType()
{
	SkipWhite();
	ReadWord(temp);

	if( temp == "cms" )
	{
		mount_type = Mount::cms;
		log << log3 << "MP: mount type: cms" << logend;	
	}
	else
	if( temp == "thread" )
	{
		mount_type = Mount::thread;
		log << log3 << "MP: mount type: thread" << logend;
	}
	else
	{
		err = Error::mount_unknown;
		log << log1 << "MP: unknown mount type: " << temp << logend;
	}
}



void MountParser::ReadMountPoint()
{
	SkipWhite();
	
	// !! narazie bez cudzyslowow
	ReadWord(temp);

	pdir = data.dirs.GetDir(temp);
	
	if( pdir )
	{
		log << log3 << "MP: mount point: " << temp << logend;	
	}
	else
	{
		err = Error::no_mountpoint;
		log << log1 << "MP: there is no such a mount point: " << temp << logend;
	}
}



void MountParser::ReadRow(std::map<long, Mount> & output)
{
	ReadMountType();	

	if( err == Error::ok )
		ReadMountPoint();


	if( err == Error::ok )
	{
		Mount m;
		m.dir_id = pdir->id;
		m.type   = mount_type;
		
		output.insert( std::make_pair(pdir->id, m) );
	}
	
	SkipLine();
}




Error MountParser::Parse(const std::string & input, std::map<long, Mount> & output)
{
	pinput = input.c_str();
	err    = Error::ok;
	output.clear();
	
	while( *pinput && err == Error::ok )
		ReadRow(output);
		
return err;
}