import 'dart:async';

import '../../../fly/state/settings_overlay.dart';

/// How long a written camera setting may stay unconfirmed before the HUD
/// shows the camera's own value again.
const Duration cameraSettle = Duration(seconds: 3);

/// Writes one camera (or gimbal) setting the way every camera-menu row does
/// (plan P4): show [pending] at once, send, roll back with [onError] if the
/// component refuses, and drop the pending value after [cameraSettle] in any
/// case — by then it has reported the new value (which replaces it) or ignored
/// the write (and the row snaps back to what it really is).
Future<void> writeCameraSetting(
  SettingsOverlay camera, {
  required String label,
  required Map<String, Object?> pending,
  required Future<void> Function() send,
  required void Function(String label, Object error) onError,
}) async {
  camera.setPending(pending);
  try {
    await send();
  } catch (e) {
    camera.dropPending(pending.keys);
    onError(label, e);
    return;
  }
  Timer(cameraSettle, () => camera.dropPending(pending.keys));
}