#ifndef SYSTEM_LOG_H
#define SYSTEM_LOG_H

#include <string>
#include <stdarg.h>

namespace sp {

namespace log { class Writer; }

class Log
{
public :
	enum Type {
		T_INFO		= 0,
		T_WARNING	= 1 << 0,
		T_CRITICAL	= 1 << 1,
		T_ERROR		= 1 << 2,
		T_DEBUG		= 1 << 3
	};

	static void setWriter(log::Writer* writer);

	static void info(const char *format, ...);

	static void warn(const char *format, ...);

	static int error(const char *format, ...);

	static void debug(const char *format, ...);

private :

	static void writeln(Type type, const char *fmt, va_list args);

	static log::Writer* _writer;
};

} // namespace sp

#endif /* SYSTEM_LOG_H */