util.h

#ifndef UTIL_H
#define UTIL_H

#include<string>
#include<fstream>

class Util
{
    public:
    static std::string convertToTime(long int input_seconds);
    static std::string getProgressBar(std::string percent);
    static std::ifstream getStream(std::string path);
};

std::string Util::convertToTime(long int input_seconds)
{
    long minutes = input_seconds/60;
    long hours = minutes/60;
    long seconds = input_seconds%60;
    minutes = minutes%60;
    std::string result = std::to_string(hours) + ":" + std::to_string(minutes) + ":" + std::to_string(seconds);
    return result;
}

std::string Util::getProgressBar(std::string percent)
{
    std::string result = "0% ";
    int _size = 50;
    int boundaries = (stof(percent)/100)*_size;
    
    for(int i = 0; i < _size; i++)
    {
        if (i < boundaries)
        {
            result += "|";
        }
        else
        {
            result +=" ";
        }
    }
    result += " " + percent.substr(0,4) + "/100%";
    return result;
}

std::ifstream Util::getStream(std::string path)
{
    std::ifstream stream(path);
    if(!stream)
    {
        throw std::runtime_error("Non-exisiting PID");
    }
        return stream;
}

#endif