function pad(value) {
  return String(value).padStart(2, "0");
}

function formatCountdown(totalSeconds) {
  const safe = Math.max(0, Math.floor(totalSeconds || 0));
  const minutes = Math.floor(safe / 60);
  const seconds = safe % 60;
  return `${pad(minutes)}:${pad(seconds)}`;
}

function formatTime(timestamp) {
  const date = new Date(timestamp);
  return `${pad(date.getHours())}:${pad(date.getMinutes())}`;
}

function randomCode() {
  return String(Math.floor(100000 + Math.random() * 900000));
}

function clone(value) {
  return JSON.parse(JSON.stringify(value));
}

module.exports = {
  formatCountdown,
  formatTime,
  randomCode,
  clone
};