LogHelper.hpp

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#pragma once

#include <string>
#include <sstream>

#include <fstream>
#include <iostream>

#include <boost/shared_ptr.hpp>
#include <boost/filesystem/path.hpp>

#include "typedef.hpp"

namespace ISM {

using boost::filesystem::path;

enum LogLevel {LOG_FATAL, LOG_ERROR, LOG_WARNING, LOG_INFO, LOG_DEBUG};

    class LogHelper
    {

    public:
        LogHelper(path logFilePath, LogLevel level);

        const static char* LOG_COLOR_DEFAULT;
        const static char* LOG_COLOR_BLUE;
        const static char* LOG_COLOR_RED;
        const static char* LOG_COLOR_GREEN;
        const static char* LOG_COLOR_YELLOW;
        const static char* LOG_COLOR_MAGENTA;

        static void init(path logFilePath, LogLevel level);
        static void close();
        static LogHelperPtr getInstance();

        static void logMessage(const std::string & message, LogLevel logLevel = LOG_INFO, const char* logColor = LOG_COLOR_DEFAULT);
        static void logLine(LogLevel logLevel = LOG_INFO);
                static void displayProgress(double progress);

    private:
        static LogHelperPtr mInstance;

        std::ofstream mLogFile;
        LogLevel mLogLevel;

                static unsigned int mBarWidth;

        void log(const std::string & message, LogLevel logLevel = LOG_INFO, const char *logColor = LOG_COLOR_DEFAULT);
        LogHelper(const LogHelper&);
        LogHelper& operator =(const LogHelper&);

        std::string getLogLevelString(LogLevel level);
        std::string getTimeString();

    };


}