std::ofstream SnailRunner::initializeLogFile() {

    const std::string filename_prefix = "snail_05_";
    const std::string filetype = ".txt";
    std::string filename = "";
    std::string lastfile = "";
    bool exit = false;
    int filenumber = 1;

    filename = filename_prefix + std::to_string(filenumber) + filetype;

    if (filenumber <= 9) {
        filename = filename_prefix + "00" + std::to_string(filenumber) + filetype;
    } else if (filenumber <= 99) {
        filename = filename_prefix + "0" + std::to_string(filenumber) + filetype;
    } else {
        filename = filename_prefix + std::to_string(filenumber) + filetype;
    }

    // Pruefen ob schon Logdateien vorhanden sind. Wenn ja dann aktuellste ermitteln.
    do {
        std::ifstream file;
        file.open(filename, std::ios::in);

        if (file.good()) {
            lastfile = filename;
            filenumber += 1;

            if (filenumber <= 9) {
                filename = filename_prefix + "00" + std::to_string(filenumber) + filetype;
            } else if (filenumber <= 99) {
                filename = filename_prefix + "0" + std::to_string(filenumber) + filetype;
            } else {
                filename = filename_prefix + std::to_string(filenumber) + filetype;
            }
        } else {
            exit = true;
            file.close();

            if (lastfile.empty()) { lastfile = "keine"; }
            std::cout << "Vorhandene Datei : " << lastfile << std::endl;
            std::cout << "Neue Datei : " << filename << std::endl;
        }
    } while (!exit);

    // Werte aus Datei lesen, falls vorhanden.
    if (!lastfile.empty()) {
        std::ifstream input;
        input.open(lastfile, std::ios::in);

        std::string inputline;
        std::getline(input, inputline);

        std::cout << inputline;
        input.close();
    }

    //std::cout << filenumber;

    std::ofstream output;
    output.open(filename, std::ios::out);

    /*
    if (datei.good()) {
    std::cout << "Datei wurde gefunden... Daten werden gelesen..." << std::endl;
    }
    else {
    std::cout << "Datei nicht vorhanden... wird jetzt erstellt..." << std::endl;
    datei.open(filename, std::ios::out);
    }
    */

    return output;
}