#ifndef LOGGER_H #define LOGGER_H #include #include using namespace std; enum LogLevel { DEBUG, INFO, WARNING, ERROR, CRITICAL }; class Logger { public: static Logger* getInstance(); ~Logger() = default; /** * Do not allow copies. */ Logger(const Logger& obj) = delete; /** * Set the log level. * @param the log level to set to. */ void setLevel(LogLevel); /** * Log a message at a certain log level. * @param The level to log this message. If the level is lower than the * level set by `setLevel`, then the message is not logged. * @param The message to log. */ void log(LogLevel, const string &); private: Logger() = default; static Logger* logger_instance; static LogLevel level; static string level_to_string(LogLevel); static int level_to_int(LogLevel); }; #endif /* LOGGER_H_INCLUDED */