// Push device registration — the CREDENTIAL-FREE half.
//
// After the OS issues a push token (via `expo-notifications`), the app upserts a
// `_voltro_devices` row so the server can later fan a notification out to it. The
// SENDER (APNs/FCM/Expo push) is server-side and creds-gated — see
// plans/open/mobile/02-push-pipeline.md. This module only builds the row, purely,
// so it is testable without a device.
//
// `userId` / `tenantId` are deliberately NOT set here: the server stamps them
// from the authenticated request (never trusted from the client).
import {
  resolveDeviceRegistration,
  type DeviceRegistration,
  type DevicePlatform,
  type DeviceRegistrationEnv,
} from '@voltro/react-native'

/**
 * Build the registration row from an Expo push token + platform. Pure given an
 * `env` (inject `now` / `locale` / `timezone` in tests); in a real runtime the
 * locale/timezone defaults come from the device.
 */
export const buildDeviceRegistration = (
  expoPushToken: string,
  platform: DevicePlatform,
  env?: DeviceRegistrationEnv,
): DeviceRegistration =>
  resolveDeviceRegistration(
    { deviceToken: expoPushToken, platform, metadata: { via: 'expo' } },
    env,
  )