#include <iostream>
#include <fstream>
#include "TFile.h"
#include "TH1F.h"

void convert_to_text() {

    // Open the ROOT file
    TFile* file = TFile::Open("test.root");

    // Check if the file is open
    if (!file) {
        std::cerr << "Error: failed to open the ROOT file." << std::endl;
        return 1;
    }

    // Get the histogram from the ROOT file
    TH1F* hist = (TH1F*)file->Get("hprt");

    // Check if the histogram exists
    if (!hist) {
        std::cerr << "Error: failed to get the histogram from the ROOT file." << std::endl;
        file->Close();
        return 1;
    }

    // Open the output text file
    std::ofstream outFile("test.dat");

    // Check if the output file is open
    if (!outFile) {
        std::cerr << "Error: failed to open the output file." << std::endl;
        file->Close();
        return 1;
    }

    // Write the bin edges and bin contents to the output file
    for (int i = 1; i <= hist->GetNbinsX(); i++) {
//      outFile << hist->GetBinCenter(i) << "\t" << hist->GetBinContent(i) << std::endl;
        outFile << hist->GetBinContent(i) << std::endl;
    }

    // Close the files
    outFile.close();
    file->Close();

    return 0;
}