# grub2_music_maker.cpp - takes a MIDI file as input, converts it to text notes, and writes it to GRUB_INIT_TUNE in /etc/default/grub -- V1.0

#include <iostream>
#include <fstream>
#include <vector>

int main(int argc, char *argv[]) {
    if (argc < 2) {
        std::cout << "Usage: " << argv[0] << " <input MIDI file>" << std::endl;
        return 1;
    }

    std::ifstream midiFile(argv[1], std::ios::binary);
    if (!midiFile.is_open()) {
        std::cerr << "Error opening MIDI file" << std::endl;
        return 1;
    }

    // Read MIDI file and convert to plain text notes
    std::vector<char> notes;
    char note;
    while (midiFile.read(&note, 1)) {
        notes.push_back(note);
    }

    // Save notes to the GRUB2 bootloader
    std::ofstream grubFile("/etc/default/grub");
    if (!grubFile.is_open()) {
        std::cerr << "Error opening GRUB file" << std::endl;
        return 1;
    }

    grubFile << "GRUB_INIT_TUNE=\"";
    for (const char& n : notes) {
        grubFile << n;
    }
    grubFile << "\"" << std::endl;

    std::cout << "MIDI file converted to plain text notes and saved to GRUB2 bootloader" << std::endl;

    return 0;
}