UUID plus timestamp to ULID

output.txt

┌──────────────┬────────────────────────────────────────┐
│   (index)    │                 Values                 │
├──────────────┼────────────────────────────────────────┤
│  timestamp   │             1678742260622              │
│     uuid     │ 'f0df59ea-bfe2-43a8-98d4-8213348daeb6' │
│     ulid     │      '01GVEDC2WE8EM9HN422CT8VBNP'      │
│ decodedTime  │             1678742260622              │
│ originalUuid │ '0186DCD6-0B8E-43A8-98D4-8213348DAEB6' │
└──────────────┴────────────────────────────────────────┘

uuid-to-ulid.ts

import { Ulid, Uuid4 } from "id128";
import { factory, decodeTime } from 'ulid'

const genUlid = factory();

function convertUuidToUlid(
  timestamp: Date, 
  canonicalUuid: string,
): Ulid {
  const uuid = Uuid4.fromCanonical(canonicalUuid);
  const convertedUlid = Ulid.fromRaw(uuid.toRaw())
  const ulidTimestamp = genUlid(timestamp.valueOf()).slice(0, 10)
  const ulidRandom = convertedUlid.toCanonical().slice(10);
  
  return Ulid.fromCanonical(ulidTimestamp + ulidRandom)
}

const timestamp = new Date()
const uuid = 'f0df59ea-bfe2-43a8-98d4-8213348daeb6'
const ulid = convertUuidToUlid(timestamp, uuid)
const originalUuid = Uuid4.fromRaw(ulid.toRaw());

console.table({
  timestamp: timestamp.valueOf(),
  uuid,
  ulid: ulid.toCanonical(),
  decodedTime: decodeTime(ulid.toCanonical()),
  originalUuid: originalUuid.toCanonical(),
});