/*]  Copyright (c) 2009-2010, Charles McGarvey  [**************************
**]  All rights reserved.
*
* vi:ts=4 sw=4 tw=75
*
* Distributable under the terms and conditions of the 2-clause BSD license;
* see the file COPYING for a complete text of the license.
*
**************************************************************************/

#ifndef _MOOF_ERROR_HH_
#define _MOOF_ERROR_HH_

#include <cstring>			// strncpy
#include <exception>
#include <string>


namespace Mf {


class Error : public std::exception
{
public:

	enum Code
	{
		UNINITIALIZED = -1,			// -
		NONE = 0,					// -
		ALC_INIT,					// description
		FASTEVENTS_INIT,			// description
		FILE_NOT_FOUND,				// path of missing file
		OPENAL_INIT,				// description
		RESOURCE_NOT_FOUND,			// name of missing resource
		SCRIPT_ERROR,				// description
		SDL_INIT,					// description
		SDL_VIDEOMODE,				// -
		UNKNOWN_AUDIO_FORMAT,		// name of resource
		UNKNOWN_IMAGE_FORMAT,		// name of resource
	};

	explicit Error(unsigned code = NONE, const std::string& what = "")
	{
		init(code, what);
	}
	virtual ~Error() throw() {}

	void init(unsigned code = NONE, const std::string& what = "")
	{
		strncpy(mWhat, what.c_str(), sizeof(mWhat)-1);
		mWhat[sizeof(mWhat)-1] = '\0';
		mCode = code;
	}

	virtual void raise() const
	{
		throw *this;
	}

	unsigned code() const throw()
	{
		return mCode;
	}

	const char* what() const throw()
	{
		return mWhat;
	}

	operator bool () const
	{
		// resolves to true if error code is not NONE
		return mCode != NONE;
	}

	void reset() throw()
	{
		mCode = NONE;
		mWhat[0] = '\0';
	}

private:

	unsigned	mCode;
	char		mWhat[1024];
};


} // namespace Mf

#endif // _MOOF_ERROR_HH_