import uuid from 'react-native-uuid'

import {device} from '#/storage'

/**
 * A locally-generated, locally-stored device identifier. This never leaves the
 * device — it is only used to disambiguate which device created a synced draft
 * (see `#/view/com/composer/drafts`) and to surface in the About screen for
 * debugging. It is not sent to any analytics or telemetry service.
 */
export async function ensureDeviceId() {
  const existing = getDeviceId()
  if (existing) return existing
  const id = uuid.v4()
  device.set(['deviceId'], id)
  return id
}

export function getDeviceId() {
  return device.get(['deviceId'])
}