Logger.h

/*
 * Copyright (C) 2025, Robert Patterson
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#pragma once
 
#include <functional>
#include <iostream>
#include <string>
 
namespace musx {
namespace util {
 
class Logger {
public:
    enum class LogLevel {
        Info,       
        Warning,    
        Error,      
        Verbose     
    };
    enum class LogLevel {…};
 
    using LogCallback = std::function<void(Logger::LogLevel, const std::string&)>;
 
    static void setCallback(LogCallback callback) {
        getInstance().m_callback = callback;
    }
    static void setCallback(LogCallback callback) {…}
 
    static LogCallback getCallback() {
        return getInstance().m_callback;
    }
    static LogCallback getCallback() {…}
 
    static void log(LogLevel level, const std::string& message) {
        if (getInstance().m_callback) {
            getInstance().m_callback(level, message);
        } else {
            std::cerr << message << std::endl;
        }
    }
    static void log(LogLevel level, const std::string& message) {…}
 
private:
    Logger() = default;
 
    static Logger& getInstance() {
        static Logger instance;
        return instance;
    }
 
    LogCallback m_callback;
};
class Logger {…};
 
} // namespace util
} // namespace musx