export type DatabaseOperationWarnings = { listenerError?: string; schedulerError?: string }
interface Dependencies {
  stopListener: () => Promise<void> | void
  stopScheduler: () => Promise<void> | void
  startListener: () => Promise<void> | void
  startScheduler: () => Promise<void> | void
}
/** Restart both consumers independently; secondary errors cannot erase a completed command. */
export async function executeDatabaseOperation<T extends object>(run: () => Promise<T>, deps: Dependencies): Promise<T & DatabaseOperationWarnings> {
  let result: T | undefined, failed = false, failure: unknown
  const warnings: DatabaseOperationWarnings = {}
  try {
    await deps.stopListener()
    await deps.stopScheduler()
    result = await run()
  } catch (error) { failed = true; failure = error }
  finally {
    try { await deps.startListener() } catch { warnings.listenerError = "Не удалось перезапустить приём NetFlow" }
    try { await deps.startScheduler() } catch { warnings.schedulerError = "Не удалось перезапустить планировщик" }
  }
  if (failed) throw failure
  return { ...result!, ...warnings }
}