#include "bu/settingsdrivertaf.h"

#include "bu/file.h"
#include "bu/taf.h"

#include <stdlib.h>

Bu::SettingsDriverTaf::SettingsDriverTaf() :
	pRoot( NULL )
{
}

Bu::SettingsDriverTaf::~SettingsDriverTaf()
{
	if( !pRoot )
		return;

	Bu::File fOut( sPath, Bu::File::WriteNew );
	Bu::TafWriter tw( fOut );
	tw.writeGroup( pRoot );
	delete pRoot;
}

void Bu::SettingsDriverTaf::init( const Bu::UtfString &sCompany,
		const Bu::UtfString &sProduct )
{
	Bu::UtfString us( getenv("HOME") );
	us += "/.config/";
	us += sCompany;
	us += "/";
	us += sProduct;
	sPath = us.get();
	try
	{
		Bu::File fIn( sPath, Bu::File::Read|Bu::File::Create );
		Bu::TafReader tr( fIn );
		pRoot = tr.readGroup();
	}
	catch(...)
	{
	}
	if( !pRoot )
	{
		pRoot = new Bu::TafGroup( sProduct.get() );
	}
}

void Bu::SettingsDriverTaf::set( const Bu::UtfString &sKey,
		const Bu::UtfString &sValue )
{
	Bu::StringList lPath = sKey.get().split('/');
	Bu::StringList::iterator i = lPath.begin();
	Bu::StringList::iterator in;
	Bu::TafGroup *pGrp = pRoot;
	for(; i;)
	{
		in = i;
		in++;
		if( in )
		{
			if( pGrp->hasChild( *i ) )
				pGrp = (Bu::TafGroup *)pGrp->getChild( *i );
			else
				pGrp = pGrp->addGroup( *i );
		}
		else
		{
			pGrp->addProperty( *i, sValue.get() );
		}
		i = in;
	}
}

Bu::UtfString Bu::SettingsDriverTaf::get( const Bu::UtfString &sKey,
		const Bu::UtfString &sValue )
{
	Bu::StringList lPath = sKey.get().split('/');
	Bu::StringList::iterator i = lPath.begin();
	Bu::StringList::iterator in;
	Bu::TafGroup *pGrp = pRoot;
	for(; i;)
	{
		in = i;
		in++;
		if( in )
		{
			if( pGrp->hasChild( *i ) )
				pGrp = (Bu::TafGroup *)pGrp->getChild( *i );
			else
				return sValue;
		}
		else
		{
			if( pGrp->hasProperty( *i ) )
				return pGrp->getProperty( *i );
			else
				return sValue;
		}
		i = in;
	}
}