Command.h

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#pragma once

#include <cstdio>
#include <cerrno>
#include <cstring>
#include <iostream>
#include <memory>
#include <stdexcept>
#include <string>
#include <array>
#include "Utilities.h"

namespace rose {

    class Command {
    protected:
        std::string mResult{};      

        struct PipeClose {
            int exitStatus{};           

            void operator()(FILE *pipe) {
                exitStatus = pclose(pipe);
            }
        };

        PipeClose mPipeClose{};                     
        std::unique_ptr<FILE, PipeClose> mPipe;     

    public:
        Command() = delete;

        explicit Command(const char* command) : mPipe(popen(command, "r"), mPipeClose){

        }

        int wait() {
            std::array<char, 128> buffer{};

            while (fgets(buffer.data(), buffer.size(), mPipe.get()) != nullptr) {
                mResult += buffer.data();
            }

            mPipe.release();

            return statusCode();
        }

        int statusCode() {
            return mPipeClose.exitStatus;
        }

        const std::string& result() const { return mResult; }
    };
}