@homebridge-plugins/homebridge-ewelink/lib/fakegato/uuid.js

Homebridge plugin to integrate eWeLink devices into HomeKit.

// https://github.com/homebridge/HAP-NodeJS/blob/master/src/lib/util/uuid.ts

const uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i
const shortRegex = /^[0-9a-f]{1,8}$/i

function isValid(UUID) {
  return uuidRegex.test(UUID)
}

function toLongFormUUID(uuid, base = '-0000-1000-8000-0026BB765291') {
  if (isValid(uuid)) {
    return uuid.toUpperCase()
  }
  if (!shortRegex.test(uuid)) {
    throw new TypeError('uuid was not a valid UUID or short form UUID')
  }
  if (!isValid(`00000000${base}`)) {
    throw new TypeError('base was not a valid base UUID')
  }
  return ((`00000000${uuid}`).slice(-8) + base).toUpperCase()
}

function toShortFormUUID(uuid, base = '-0000-1000-8000-0026BB765291') {
  uuid = toLongFormUUID(uuid, base)
  return uuid.substring(0, 8)
}

export { toLongFormUUID, toShortFormUUID }