export const uuidv4 = () => {
  return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function (c) {
    const r = Math.trunc(Math.random() * 16);
    const v = c == "x" ? r : (r & 0x3) | 0x8;
    return v.toString(16);
  });
};

export const uuidv7 = () => {
  return "tttttttt-tttt-7xxx-yxxx-xxxxxxxxxxxx"
    .replace(/[xy]/g, function (c) {
      const r = Math.trunc(Math.random() * 16);
      const v = c == "x" ? r : (r & 0x3) | 0x8;
      return v.toString(16);
    })
    .replace(/^[t]{8}-[t]{4}/, function () {
      const unixtimestamp = Date.now().toString(16).padStart(12, "0");
      return unixtimestamp.slice(0, 8) + "-" + unixtimestamp.slice(8);
    });
};