vjrj
9c449964fd
A silent safety net against in-app data loss or DB corruption, with zero friction. Driven off the app lifecycle (startup + when hidden), it writes a sealed .tanemaki copy into the app's private storage once a week, keeping the newest 3 (rotating). Reuses the manual backup's encryption via the extracted ExportImportService.buildSealedBackup(); never throws, so a failed copy can't crash startup or backgrounding. Not registered on web (no file storage). Settings shows a quiet reassurance line with the date of the last automatic copy (localised via intl), hidden where no automatic backup exists.
24 lines
864 B
Dart
24 lines
864 B
Dart
import '../security/secret_store.dart';
|
|
|
|
/// Remembers when the last automatic backup ran, so the app only makes a fresh
|
|
/// copy once the interval has elapsed. Backed by the OS keystore (via
|
|
/// [SecretStore]) to honour the "no plaintext at rest" rule — mirrors
|
|
/// [OnboardingStore]; there is no shared_preferences here.
|
|
class AutoBackupStore {
|
|
AutoBackupStore(this._store);
|
|
|
|
final SecretStore _store;
|
|
|
|
static const _lastKey = 'tane.auto_backup.last';
|
|
|
|
/// When the last automatic backup succeeded, or null if none has run yet.
|
|
Future<DateTime?> lastBackupAt() async {
|
|
final raw = await _store.read(_lastKey);
|
|
if (raw == null) return null;
|
|
return DateTime.tryParse(raw);
|
|
}
|
|
|
|
/// Records that an automatic backup succeeded at [when].
|
|
Future<void> markBackupAt(DateTime when) =>
|
|
_store.write(_lastKey, when.toIso8601String());
|
|
}
|