/**
 *   This file is part of RenderD7
 *   Copyright (C) 2021-2024 NPI-D7, tobid7
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <unistd.h>

#include <memory>
#include <renderd7/Time.hpp>
#include <string>

std::string RenderD7::FormatString(std::string fmt_str, ...) {
  va_list ap;
  char *fp = NULL;
  va_start(ap, fmt_str);
  vasprintf(&fp, fmt_str.c_str(), ap);
  va_end(ap);
  std::unique_ptr<char, decltype(free) *> formatted(fp, free);
  return std::string(formatted.get());
}

std::string RenderD7::GetTimeStr(void) {
  time_t unixTime;
  struct tm timeStruct;
  time(&unixTime);
  localtime_r(&unixTime, &timeStruct);
  return FormatString("%04i-%02i-%02i_%02i-%02i-%02i",
                      timeStruct.tm_year + 1900, timeStruct.tm_mon + 1,
                      timeStruct.tm_mday, timeStruct.tm_hour, timeStruct.tm_min,
                      timeStruct.tm_sec);
}