util.h

#pragma once
#include<fstream>
#include<string>

class Util{
    public:
        static std::ifstream getStream(std::string path);
        static std::string convertTime(long int input_seconds);
        static std::string getProgressBar(std::string percent);
};
std::ifstream Util::getStream(std::string path){
    std::ifstream stream(path);
    if(!stream){
        throw std::runtime_error("Non -existing PID");
    }
    return stream;
}
std::string Util::convertTime(long int input_seconds){
    long hours = input_seconds / 3600;
    long minutes = (input_seconds % 3600) / 60;  
    long seconds = int(input_seconds%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){
    try {
        float percentValue = stof(percent);
        
        
        if(percentValue < 0) percentValue = 0;
        if(percentValue > 100) percentValue = 100;
        
        
        char buffer[16];
        snprintf(buffer, sizeof(buffer), "%.1f", percentValue);
        
        std::string result = std::string(buffer) + "% ";  
        int _size = 50;
        int boundaries = (percentValue / 100.0) * _size;
        
        for(int i=0; i<_size; ++i){
            if(i < boundaries) 
                result += "|";
            else 
                result += " ";
        }
        return result;
    } catch(...) {
        return "0% [ERROR]";
    }
}