/*
    Object Viewer Qt
    Copyright (C) 2010 Dzmitry Kamiahin <dnk-88@tut.by>

    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 3 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, see <http://www.gnu.org/licenses/>.

*/

#ifndef CONFIGURATION_H
#define CONFIGURATION_H

#include <nel/misc/types_nl.h>

// STL includes
#include <map>

// NeL includes
#include <nel/misc/config_file.h>
#include <nel/misc/rgba.h>
#include <nel/misc/ucstring.h>

// Project includes
#include "callback.h"

#define NLQT_CONFIG_FILE "object_viewer.cfg"

namespace NLQT {

typedef CCallback<void, NLMISC::CConfigFile::CVar &> CConfigCallback;

/**
@class CConfiguration
@date 2010-02-05 15:44GMT
@author Jan Boon (Kaetemi)
@brief Read / write settings from the configuration file
@details Load the configuration file, and then read/write settings.
As well as automatic reading of the search paths and their sets.
*/
class CConfiguration
{
public:
	CConfiguration();
	virtual ~CConfiguration();

	void init();
	void release();
	
	void updateUtilities();
	void configSearchPaths();
	void configRemapExtensions();

	void setAndCallback(const std::string &varName, CConfigCallback configCallback);
	void setCallback(const std::string &varName, CConfigCallback configCallback);
	void dropCallback(const std::string &varName);
	
	float getValue(const std::string &varName, float defaultValue);
	double getValue(const std::string &varName, double defaultValue);
	int getValue(const std::string &varName, int defaultValue);
	std::string getValue(const std::string &varName, const std::string &defaultValue);
	ucstring getValue(const std::string &varName, const ucstring &defaultValue);
	bool getValue(const std::string &varName, bool defaultValue);
	NLMISC::CRGBA getValue(const std::string &varName, const NLMISC::CRGBA &defaultValue);
	NLMISC::CRGBA getValue(const NLMISC::CConfigFile::CVar &var, const NLMISC::CRGBA &defaultValue);
	
	inline NLMISC::CConfigFile &getConfigFile() { return ConfigFile; }

private:
	static void cbConfigCallback(NLMISC::CConfigFile::CVar &var);

	void cfcbSearchPaths(NLMISC::CConfigFile::CVar &var);

	CConfiguration(const CConfiguration &);
	CConfiguration &operator=(const CConfiguration &);

	NLMISC::CConfigFile ConfigFile;
	std::map<std::string, CConfigCallback> ConfigCallbacks;
	
};/* class CConfiguration */

} /* namespace NLQT */

#endif // CONFIGURATION_H