Logger.h

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#pragma once

#include <iostream>
#include <fstream>
#include <string>

namespace NuTo
{
class Logger
{

public:
    Logger(std::string prefix = "", bool isQuiet = true);

    void OpenFile(std::string filename);

    void CloseFile();

    void SetQuiet(bool isQuiet);

    template <typename T>
    void Out(const T& rObject, bool withNewline = false)
    {
        std::string optionalPrefix = OptionalPrefix();
        if (!mIsQuiet)
        {
            std::cout << optionalPrefix << rObject;
            std::cout.flush();
        }
        if (mLogFile.is_open())
        {
            mLogFile << optionalPrefix << rObject;
            mLogFile.flush();
        }
        mPrintPrefix = withNewline;
    }

    std::string OptionalPrefix();

    void Info() const
    {
        std::cout << "LogFileName " << mLogFileName << " is quiet " << mIsQuiet << std::endl;
    }


protected:
    std::ofstream mLogFile; 
    std::string mLogFileName; 
    bool mIsQuiet = false; 

    std::string mPrefix; 
    bool mPrintPrefix = true;
};

template <typename T>
inline Logger& operator<<(Logger& rLogger, const T& t)
{
    rLogger.Out(t);
    return rLogger;
}

Logger& operator<<(Logger& rLogger, const char& t);
Logger& operator<<(Logger& rLogger, const std::string& t);
Logger& operator<<(Logger& rLogger, const char* t);

struct Log
{
    static Logger Debug; // prefix "Debug| "
    static Logger Info; // prefix "Info|  "
    static Logger Error; // prefix "Error| "
};
} // namespace NuTo