limitPerDay static method

Future<void> limitPerDay(String actionKey, FutureOr<void> perform(), { int maxPerDay = 5, FutureOr<void> unauthorized()?, })

Limit the number of times an action can be performed in a day. Provide an actionKey for the action you want to limit. Provide a perform callback to execute if the user is authorized. Provide a maxPerDay to limit the number of times the action can be performed. Provide an unauthorized callback to execute if the limit is reached.

Implementation

static Future<void> limitPerDay(
  String actionKey,
  FutureOr<void> Function() perform, {
  int maxPerDay = 5,
  FutureOr<void> Function()? unauthorized,
}) async {
  final key = 'action_$actionKey';
  final today = DateTime.now().toDateString();

  final stored = await NyStorage.readJson(key);
  final isNewDay = stored == null || stored['date'] != today;
  final count = isNewDay ? 0 : (stored['count'] as int? ?? 0);

  if (count >= maxPerDay) {
    await unauthorized?.call();
    return;
  }

  await NyStorage.saveJson(key, {'date': today, 'count': count + 1});
  await perform();
}