public enum LogLevel {
    Info,
    Warning,
    Error,
}

public class Logger {
    String prefix;

    public constructor(String prefix) {
        self.prefix = prefix;
    }

    public void info(self*, String message) {
        self.log(LogLevel::Info, message);
    }

    public void warning(self*, String message) {
        self.log(LogLevel::Warning, message);
    }

    public void error(self*, String message) {
        self.log(LogLevel::Error, message);
    }

    void log(self*, LogLevel level, String message) {
        match(level) {
            LogLevel::Info => {
                println!("[INFO] {} {}", self.prefix, message);
            }

            LogLevel::Warning => {
                println!("[WARN] {} {}", self.prefix, message);
            }

            LogLevel::Error => {
                println!("[ERROR] {} {}", self.prefix, message);
            }
        }
    }
}