formatPlayerTime.ts

const SECOND = 1000;
const MINUTE = 60 * SECOND;
const HOUR = 60 * MINUTE;

export function formatPlayerTime(ms: number, options?: {withHour?: boolean}) {
  if (ms <= 0) {
    if (!!options?.withHour) {
      return '00:00:00';
    }

    return '00:00';
  }

  const hour = Math.floor(ms / HOUR);
  ms = ms % HOUR;
  const minute = Math.floor(ms / MINUTE);
  ms = ms % MINUTE;
  const secondWithMs = ms / SECOND;
  const second = Math.floor(secondWithMs);

  if (hour || !!options?.withHour) {
    return `${padZero(hour)}:${padZero(minute)}:${padZero(second)}`;
  }

  return `${padZero(minute)}:${padZero(second)}`;
}

function padZero(num: number, len = 2): string {
  let str = String(num);
  const threshold = Math.pow(10, len - 1);
  if (num < threshold) {
    while (String(threshold).length > str.length) {
      str = `0${num}`;
    }
  }
  return str;
}