fix: cloud sync (#769)

lib/data/model/app/bak/backup.dart

@@ -0,0 +1,237 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:fl_lib/fl_lib.dart';
+import 'package:json_annotation/json_annotation.dart';
+import 'package:logging/logging.dart';
+import 'package:server_box/data/model/server/private_key_info.dart';
+import 'package:server_box/data/model/server/server_private_info.dart';
+import 'package:server_box/data/model/server/snippet.dart';
+import 'package:server_box/data/res/misc.dart';
+import 'package:server_box/data/res/store.dart';
+
+part 'backup.g.dart';
+
+const backupFormatVersion = 1;
+
+final _logger = Logger('Backup');
+
+@JsonSerializable()
+class Backup implements Mergeable {
+  // backup format version
+  final int version;
+  final String date;
+  final List<Spi> spis;
+  final List<Snippet> snippets;
+  final List<PrivateKeyInfo> keys;
+  final Map<String, dynamic> container;
+  final Map<String, dynamic> history;
+  final int? lastModTime;
+  final Map<String, dynamic>? settings;
+
+  const Backup({
+    required this.version,
+    required this.date,
+    required this.spis,
+    required this.snippets,
+    required this.keys,
+    required this.container,
+    required this.history,
+    required this.settings,
+    this.lastModTime,
+  });
+
+  factory Backup.fromJson(Map<String, dynamic> json) => _$BackupFromJson(json);
+
+  Map<String, dynamic> toJson() => _$BackupToJson(this);
+
+  static Future<Backup> loadFromStore() async {
+    final lastModTime = Stores.lastModTime;
+    return Backup(
+      version: backupFormatVersion,
+      date: DateTime.now().toString().split('.').firstOrNull ?? '',
+      spis: Stores.server.fetch(),
+      snippets: Stores.snippet.fetch(),
+      keys: Stores.key.fetch(),
+      container: Stores.container.getAllMap(),
+      lastModTime: lastModTime,
+      history: Stores.history.getAllMap(),
+      settings: Stores.setting.getAllMap(),
+    );
+  }
+
+  static Future<String> backup([String? name]) async {
+    final bak = await Backup.loadFromStore();
+    final result = _diyEncrypt(json.encode(bak.toJson()));
+    final path = Paths.doc.joinPath(name ?? Miscs.bakFileName);
+    await File(path).writeAsString(result);
+    return path;
+  }
+
+  @override
+  Future<void> merge({bool force = false}) async {
+    final curTime = Stores.lastModTime;
+    final bakTime = lastModTime ?? 0;
+    final shouldRestore = force || curTime < bakTime;
+    if (!shouldRestore) {
+      _logger.info('No need to restore, local is newer');
+      return;
+    }
+
+    // Snippets
+    if (force) {
+      for (final s in snippets) {
+        Stores.snippet.box.put(s.name, s);
+      }
+    } else {
+      final nowSnippets = Stores.snippet.box.keys.toSet();
+      final bakSnippets = snippets.map((e) => e.name).toSet();
+      final newSnippets = bakSnippets.difference(nowSnippets);
+      final delSnippets = nowSnippets.difference(bakSnippets);
+      final updateSnippets = nowSnippets.intersection(bakSnippets);
+      for (final s in newSnippets) {
+        Stores.snippet.box.put(s, snippets.firstWhere((e) => e.name == s));
+      }
+      for (final s in delSnippets) {
+        Stores.snippet.box.delete(s);
+      }
+      for (final s in updateSnippets) {
+        Stores.snippet.box.put(s, snippets.firstWhere((e) => e.name == s));
+      }
+    }
+
+    // ServerPrivateInfo
+    if (force) {
+      for (final s in spis) {
+        Stores.server.box.put(s.id, s);
+      }
+    } else {
+      final nowSpis = Stores.server.box.keys.toSet();
+      final bakSpis = spis.map((e) => e.id).toSet();
+      final newSpis = bakSpis.difference(nowSpis);
+      final delSpis = nowSpis.difference(bakSpis);
+      final updateSpis = nowSpis.intersection(bakSpis);
+      for (final s in newSpis) {
+        Stores.server.box.put(s, spis.firstWhere((e) => e.id == s));
+      }
+      for (final s in delSpis) {
+        Stores.server.box.delete(s);
+      }
+      for (final s in updateSpis) {
+        Stores.server.box.put(s, spis.firstWhere((e) => e.id == s));
+      }
+    }
+
+    // PrivateKeyInfo
+    if (force) {
+      for (final s in keys) {
+        Stores.key.box.put(s.id, s);
+      }
+    } else {
+      final nowKeys = Stores.key.box.keys.toSet();
+      final bakKeys = keys.map((e) => e.id).toSet();
+      final newKeys = bakKeys.difference(nowKeys);
+      final delKeys = nowKeys.difference(bakKeys);
+      final updateKeys = nowKeys.intersection(bakKeys);
+      for (final s in newKeys) {
+        Stores.key.box.put(s, keys.firstWhere((e) => e.id == s));
+      }
+      for (final s in delKeys) {
+        Stores.key.box.delete(s);
+      }
+      for (final s in updateKeys) {
+        Stores.key.box.put(s, keys.firstWhere((e) => e.id == s));
+      }
+    }
+
+    // History
+    if (force) {
+      Stores.history.box.putAll(history);
+    } else {
+      final nowHistory = Stores.history.box.keys.toSet();
+      final bakHistory = history.keys.toSet();
+      final newHistory = bakHistory.difference(nowHistory);
+      final delHistory = nowHistory.difference(bakHistory);
+      final updateHistory = nowHistory.intersection(bakHistory);
+      for (final s in newHistory) {
+        Stores.history.box.put(s, history[s]);
+      }
+      for (final s in delHistory) {
+        Stores.history.box.delete(s);
+      }
+      for (final s in updateHistory) {
+        Stores.history.box.put(s, history[s]);
+      }
+    }
+
+    // Container
+    if (force) {
+      Stores.container.box.putAll(container);
+    } else {
+      final nowContainer = Stores.container.box.keys.toSet();
+      final bakContainer = container.keys.toSet();
+      final newContainer = bakContainer.difference(nowContainer);
+      final delContainer = nowContainer.difference(bakContainer);
+      final updateContainer = nowContainer.intersection(bakContainer);
+      for (final s in newContainer) {
+        Stores.container.box.put(s, container[s]);
+      }
+      for (final s in delContainer) {
+        Stores.container.box.delete(s);
+      }
+      for (final s in updateContainer) {
+        Stores.container.box.put(s, container[s]);
+      }
+    }
+
+    // Settings
+    final settings_ = settings;
+    if (settings_ != null) {
+      if (force) {
+        Stores.setting.box.putAll(settings_);
+      } else {
+        final nowSettings = Stores.setting.box.keys.toSet();
+        final bakSettings = settings_.keys.toSet();
+        final newSettings = bakSettings.difference(nowSettings);
+        final delSettings = nowSettings.difference(bakSettings);
+        final updateSettings = nowSettings.intersection(bakSettings);
+        for (final s in newSettings) {
+          Stores.setting.box.put(s, settings_[s]);
+        }
+        for (final s in delSettings) {
+          Stores.setting.box.delete(s);
+        }
+        for (final s in updateSettings) {
+          Stores.setting.box.put(s, settings_[s]);
+        }
+      }
+    }
+
+    Provider.reload();
+    RNodes.app.notify();
+
+    _logger.info('Restore success');
+  }
+
+  factory Backup.fromJsonString(String raw) =>
+      Backup.fromJson(json.decode(_diyDecrypt(raw)));
+}
+
+String _diyEncrypt(String raw) => json.encode(
+      raw.codeUnits.map((e) => e * 2 + 1).toList(growable: false),
+    );
+
+String _diyDecrypt(String raw) {
+  try {
+    final list = json.decode(raw);
+    final sb = StringBuffer();
+    for (final e in list) {
+      sb.writeCharCode((e - 1) ~/ 2);
+    }
+    return sb.toString();
+  } catch (e, trace) {
+    Loggers.app.warning('Backup decrypt failed', e, trace);
+    rethrow;
+  }
+}
+

lib/data/model/app/bak/backup.g.dart

@@ -0,0 +1,37 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'backup.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+Backup _$BackupFromJson(Map<String, dynamic> json) => Backup(
+  version: (json['version'] as num).toInt(),
+  date: json['date'] as String,
+  spis: (json['spis'] as List<dynamic>)
+      .map((e) => Spi.fromJson(e as Map<String, dynamic>))
+      .toList(),
+  snippets: (json['snippets'] as List<dynamic>)
+      .map((e) => Snippet.fromJson(e as Map<String, dynamic>))
+      .toList(),
+  keys: (json['keys'] as List<dynamic>)
+      .map((e) => PrivateKeyInfo.fromJson(e as Map<String, dynamic>))
+      .toList(),
+  container: json['container'] as Map<String, dynamic>,
+  history: json['history'] as Map<String, dynamic>,
+  settings: json['settings'] as Map<String, dynamic>?,
+  lastModTime: (json['lastModTime'] as num?)?.toInt(),
+);
+
+Map<String, dynamic> _$BackupToJson(Backup instance) => <String, dynamic>{
+  'version': instance.version,
+  'date': instance.date,
+  'spis': instance.spis,
+  'snippets': instance.snippets,
+  'keys': instance.keys,
+  'container': instance.container,
+  'history': instance.history,
+  'lastModTime': instance.lastModTime,
+  'settings': instance.settings,
+};

lib/data/model/app/bak/backup2.dart

@@ -0,0 +1,89 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:fl_lib/fl_lib.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:logging/logging.dart';
+import 'package:server_box/data/res/misc.dart';
+import 'package:server_box/data/res/store.dart';
+
+part 'backup2.freezed.dart';
+part 'backup2.g.dart';
+
+final _loggerV2 = Logger('BackupV2');
+
+@freezed
+abstract class BackupV2 with _$BackupV2 implements Mergeable {
+  const BackupV2._();
+
+  /// Construct a backup with the latest format (v2).
+  ///
+  /// All `Map<String, dynamic>` are:
+  /// ```json
+  /// {
+  ///   "key1": Model{},
+  ///   "_lastModTime": {
+  ///     "key1": 1234567890,
+  ///   },
+  /// }
+  /// ```
+  const factory BackupV2({
+    required int version,
+    required int date,
+    required Map<String, Object?> spis,
+    required Map<String, Object?> snippets,
+    required Map<String, Object?> keys,
+    required Map<String, Object?> container,
+    required Map<String, Object?> history,
+    required Map<String, Object?> settings,
+  }) = _BackupV2;
+
+  factory BackupV2.fromJson(Map<String, dynamic> json) => _$BackupV2FromJson(json);
+
+  @override
+  Future<void> merge({bool force = false}) async {
+    _loggerV2.info('Merging...');
+
+    // Merge each store
+    await Mergeable.mergeStore(backupData: spis, store: Stores.server, force: force);
+    await Mergeable.mergeStore(backupData: snippets, store: Stores.snippet, force: force);
+    await Mergeable.mergeStore(backupData: keys, store: Stores.key, force: force);
+    await Mergeable.mergeStore(backupData: container, store: Stores.container, force: force);
+    await Mergeable.mergeStore(backupData: history, store: Stores.history, force: force);
+    await Mergeable.mergeStore(backupData: settings, store: Stores.setting, force: force);
+
+    // Reload providers and notify listeners
+    Provider.reload();
+    RNodes.app.notify();
+
+    _loggerV2.info('Merge completed');
+  }
+
+  static const formatVer = 2;
+
+  static Future<BackupV2> loadFromStore() async {
+    return BackupV2(
+      version: formatVer,
+      date: DateTimeX.timestamp,
+      spis: Stores.server.getAllMap(includeInternalKeys: true),
+      snippets: Stores.snippet.getAllMap(includeInternalKeys: true),
+      keys: Stores.key.getAllMap(includeInternalKeys: true),
+      container: Stores.container.getAllMap(includeInternalKeys: true),
+      history: Stores.history.getAllMap(includeInternalKeys: true),
+      settings: Stores.setting.getAllMap(includeInternalKeys: true),
+    );
+  }
+
+  static Future<String> backup([String? name]) async {
+    final bak = await BackupV2.loadFromStore();
+    final result = json.encode(bak.toJson());
+    final path = Paths.doc.joinPath(name ?? Miscs.bakFileName);
+    await File(path).writeAsString(result);
+    return path;
+  }
+
+  factory BackupV2.fromJsonString(String jsonString) {
+    final map = json.decode(jsonString) as Map<String, dynamic>;
+    return BackupV2.fromJson(map);
+  }
+}

lib/data/model/app/bak/backup2.freezed.dart

@@ -0,0 +1,372 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target, unnecessary_question_mark
+
+part of 'backup2.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+  'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models',
+);
+
+BackupV2 _$BackupV2FromJson(Map<String, dynamic> json) {
+  return _BackupV2.fromJson(json);
+}
+
+/// @nodoc
+mixin _$BackupV2 {
+  int get version => throw _privateConstructorUsedError;
+  int get date => throw _privateConstructorUsedError;
+  Map<String, Object?> get spis => throw _privateConstructorUsedError;
+  Map<String, Object?> get snippets => throw _privateConstructorUsedError;
+  Map<String, Object?> get keys => throw _privateConstructorUsedError;
+  Map<String, Object?> get container => throw _privateConstructorUsedError;
+  Map<String, Object?> get history => throw _privateConstructorUsedError;
+  Map<String, Object?> get settings => throw _privateConstructorUsedError;
+
+  /// Serializes this BackupV2 to a JSON map.
+  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
+
+  /// Create a copy of BackupV2
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  $BackupV2CopyWith<BackupV2> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $BackupV2CopyWith<$Res> {
+  factory $BackupV2CopyWith(BackupV2 value, $Res Function(BackupV2) then) =
+      _$BackupV2CopyWithImpl<$Res, BackupV2>;
+  @useResult
+  $Res call({
+    int version,
+    int date,
+    Map<String, Object?> spis,
+    Map<String, Object?> snippets,
+    Map<String, Object?> keys,
+    Map<String, Object?> container,
+    Map<String, Object?> history,
+    Map<String, Object?> settings,
+  });
+}
+
+/// @nodoc
+class _$BackupV2CopyWithImpl<$Res, $Val extends BackupV2>
+    implements $BackupV2CopyWith<$Res> {
+  _$BackupV2CopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  /// Create a copy of BackupV2
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? version = null,
+    Object? date = null,
+    Object? spis = null,
+    Object? snippets = null,
+    Object? keys = null,
+    Object? container = null,
+    Object? history = null,
+    Object? settings = null,
+  }) {
+    return _then(
+      _value.copyWith(
+            version: null == version
+                ? _value.version
+                : version // ignore: cast_nullable_to_non_nullable
+                      as int,
+            date: null == date
+                ? _value.date
+                : date // ignore: cast_nullable_to_non_nullable
+                      as int,
+            spis: null == spis
+                ? _value.spis
+                : spis // ignore: cast_nullable_to_non_nullable
+                      as Map<String, Object?>,
+            snippets: null == snippets
+                ? _value.snippets
+                : snippets // ignore: cast_nullable_to_non_nullable
+                      as Map<String, Object?>,
+            keys: null == keys
+                ? _value.keys
+                : keys // ignore: cast_nullable_to_non_nullable
+                      as Map<String, Object?>,
+            container: null == container
+                ? _value.container
+                : container // ignore: cast_nullable_to_non_nullable
+                      as Map<String, Object?>,
+            history: null == history
+                ? _value.history
+                : history // ignore: cast_nullable_to_non_nullable
+                      as Map<String, Object?>,
+            settings: null == settings
+                ? _value.settings
+                : settings // ignore: cast_nullable_to_non_nullable
+                      as Map<String, Object?>,
+          )
+          as $Val,
+    );
+  }
+}
+
+/// @nodoc
+abstract class _$$BackupV2ImplCopyWith<$Res>
+    implements $BackupV2CopyWith<$Res> {
+  factory _$$BackupV2ImplCopyWith(
+    _$BackupV2Impl value,
+    $Res Function(_$BackupV2Impl) then,
+  ) = __$$BackupV2ImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call({
+    int version,
+    int date,
+    Map<String, Object?> spis,
+    Map<String, Object?> snippets,
+    Map<String, Object?> keys,
+    Map<String, Object?> container,
+    Map<String, Object?> history,
+    Map<String, Object?> settings,
+  });
+}
+
+/// @nodoc
+class __$$BackupV2ImplCopyWithImpl<$Res>
+    extends _$BackupV2CopyWithImpl<$Res, _$BackupV2Impl>
+    implements _$$BackupV2ImplCopyWith<$Res> {
+  __$$BackupV2ImplCopyWithImpl(
+    _$BackupV2Impl _value,
+    $Res Function(_$BackupV2Impl) _then,
+  ) : super(_value, _then);
+
+  /// Create a copy of BackupV2
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? version = null,
+    Object? date = null,
+    Object? spis = null,
+    Object? snippets = null,
+    Object? keys = null,
+    Object? container = null,
+    Object? history = null,
+    Object? settings = null,
+  }) {
+    return _then(
+      _$BackupV2Impl(
+        version: null == version
+            ? _value.version
+            : version // ignore: cast_nullable_to_non_nullable
+                  as int,
+        date: null == date
+            ? _value.date
+            : date // ignore: cast_nullable_to_non_nullable
+                  as int,
+        spis: null == spis
+            ? _value._spis
+            : spis // ignore: cast_nullable_to_non_nullable
+                  as Map<String, Object?>,
+        snippets: null == snippets
+            ? _value._snippets
+            : snippets // ignore: cast_nullable_to_non_nullable
+                  as Map<String, Object?>,
+        keys: null == keys
+            ? _value._keys
+            : keys // ignore: cast_nullable_to_non_nullable
+                  as Map<String, Object?>,
+        container: null == container
+            ? _value._container
+            : container // ignore: cast_nullable_to_non_nullable
+                  as Map<String, Object?>,
+        history: null == history
+            ? _value._history
+            : history // ignore: cast_nullable_to_non_nullable
+                  as Map<String, Object?>,
+        settings: null == settings
+            ? _value._settings
+            : settings // ignore: cast_nullable_to_non_nullable
+                  as Map<String, Object?>,
+      ),
+    );
+  }
+}
+
+/// @nodoc
+@JsonSerializable()
+class _$BackupV2Impl extends _BackupV2 {
+  const _$BackupV2Impl({
+    required this.version,
+    required this.date,
+    required final Map<String, Object?> spis,
+    required final Map<String, Object?> snippets,
+    required final Map<String, Object?> keys,
+    required final Map<String, Object?> container,
+    required final Map<String, Object?> history,
+    required final Map<String, Object?> settings,
+  }) : _spis = spis,
+       _snippets = snippets,
+       _keys = keys,
+       _container = container,
+       _history = history,
+       _settings = settings,
+       super._();
+
+  factory _$BackupV2Impl.fromJson(Map<String, dynamic> json) =>
+      _$$BackupV2ImplFromJson(json);
+
+  @override
+  final int version;
+  @override
+  final int date;
+  final Map<String, Object?> _spis;
+  @override
+  Map<String, Object?> get spis {
+    if (_spis is EqualUnmodifiableMapView) return _spis;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableMapView(_spis);
+  }
+
+  final Map<String, Object?> _snippets;
+  @override
+  Map<String, Object?> get snippets {
+    if (_snippets is EqualUnmodifiableMapView) return _snippets;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableMapView(_snippets);
+  }
+
+  final Map<String, Object?> _keys;
+  @override
+  Map<String, Object?> get keys {
+    if (_keys is EqualUnmodifiableMapView) return _keys;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableMapView(_keys);
+  }
+
+  final Map<String, Object?> _container;
+  @override
+  Map<String, Object?> get container {
+    if (_container is EqualUnmodifiableMapView) return _container;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableMapView(_container);
+  }
+
+  final Map<String, Object?> _history;
+  @override
+  Map<String, Object?> get history {
+    if (_history is EqualUnmodifiableMapView) return _history;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableMapView(_history);
+  }
+
+  final Map<String, Object?> _settings;
+  @override
+  Map<String, Object?> get settings {
+    if (_settings is EqualUnmodifiableMapView) return _settings;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableMapView(_settings);
+  }
+
+  @override
+  String toString() {
+    return 'BackupV2(version: $version, date: $date, spis: $spis, snippets: $snippets, keys: $keys, container: $container, history: $history, settings: $settings)';
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$BackupV2Impl &&
+            (identical(other.version, version) || other.version == version) &&
+            (identical(other.date, date) || other.date == date) &&
+            const DeepCollectionEquality().equals(other._spis, _spis) &&
+            const DeepCollectionEquality().equals(other._snippets, _snippets) &&
+            const DeepCollectionEquality().equals(other._keys, _keys) &&
+            const DeepCollectionEquality().equals(
+              other._container,
+              _container,
+            ) &&
+            const DeepCollectionEquality().equals(other._history, _history) &&
+            const DeepCollectionEquality().equals(other._settings, _settings));
+  }
+
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  int get hashCode => Object.hash(
+    runtimeType,
+    version,
+    date,
+    const DeepCollectionEquality().hash(_spis),
+    const DeepCollectionEquality().hash(_snippets),
+    const DeepCollectionEquality().hash(_keys),
+    const DeepCollectionEquality().hash(_container),
+    const DeepCollectionEquality().hash(_history),
+    const DeepCollectionEquality().hash(_settings),
+  );
+
+  /// Create a copy of BackupV2
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$BackupV2ImplCopyWith<_$BackupV2Impl> get copyWith =>
+      __$$BackupV2ImplCopyWithImpl<_$BackupV2Impl>(this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$$BackupV2ImplToJson(this);
+  }
+}
+
+abstract class _BackupV2 extends BackupV2 {
+  const factory _BackupV2({
+    required final int version,
+    required final int date,
+    required final Map<String, Object?> spis,
+    required final Map<String, Object?> snippets,
+    required final Map<String, Object?> keys,
+    required final Map<String, Object?> container,
+    required final Map<String, Object?> history,
+    required final Map<String, Object?> settings,
+  }) = _$BackupV2Impl;
+  const _BackupV2._() : super._();
+
+  factory _BackupV2.fromJson(Map<String, dynamic> json) =
+      _$BackupV2Impl.fromJson;
+
+  @override
+  int get version;
+  @override
+  int get date;
+  @override
+  Map<String, Object?> get spis;
+  @override
+  Map<String, Object?> get snippets;
+  @override
+  Map<String, Object?> get keys;
+  @override
+  Map<String, Object?> get container;
+  @override
+  Map<String, Object?> get history;
+  @override
+  Map<String, Object?> get settings;
+
+  /// Create a copy of BackupV2
+  /// with the given fields replaced by the non-null parameter values.
+  @override
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  _$$BackupV2ImplCopyWith<_$BackupV2Impl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

lib/data/model/app/bak/backup2.g.dart

@@ -0,0 +1,31 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'backup2.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_$BackupV2Impl _$$BackupV2ImplFromJson(Map<String, dynamic> json) =>
+    _$BackupV2Impl(
+      version: (json['version'] as num).toInt(),
+      date: (json['date'] as num).toInt(),
+      spis: json['spis'] as Map<String, dynamic>,
+      snippets: json['snippets'] as Map<String, dynamic>,
+      keys: json['keys'] as Map<String, dynamic>,
+      container: json['container'] as Map<String, dynamic>,
+      history: json['history'] as Map<String, dynamic>,
+      settings: json['settings'] as Map<String, dynamic>,
+    );
+
+Map<String, dynamic> _$$BackupV2ImplToJson(_$BackupV2Impl instance) =>
+    <String, dynamic>{
+      'version': instance.version,
+      'date': instance.date,
+      'spis': instance.spis,
+      'snippets': instance.snippets,
+      'keys': instance.keys,
+      'container': instance.container,
+      'history': instance.history,
+      'settings': instance.settings,
+    };

lib/data/model/app/bak/utils.dart

@@ -0,0 +1,15 @@
+import 'package:fl_lib/fl_lib.dart';
+import 'package:server_box/data/model/app/bak/backup.dart';
+import 'package:server_box/data/model/app/bak/backup2.dart';
+
+abstract final class MergeableUtils {
+  static (Mergeable, String) fromJsonString(String json) {
+    try {
+      final bak = BackupV2.fromJsonString(json);
+      return (bak, DateTime.fromMillisecondsSinceEpoch(bak.date).hms());
+    } catch (e) {
+      final bak = Backup.fromJsonString(json);
+      return (bak, bak.date);
+    }
+  }
+}