#268 groups: serialization

lib/model/grouping/common.dart

@@ -29,22 +29,17 @@ class FilterGrouping<T extends GroupBaseFilter> with ChangeNotifier {
   final T Function(Uri uri, SetOrFilter filter) _createGroupFilter;
   final Map<Uri, Set<Uri>> _groups = {};
 
+  Map<Uri, Set<Uri>> get allGroups => Map.unmodifiable(_groups);
+
   FilterGrouping._private(this._host, this._createGroupFilter) {
     if (kFlutterMemoryAllocationsEnabled) ChangeNotifier.maybeDispatchObjectCreation(this);
   }
 
-  static FilterGrouping? forUri(Uri uri) {
+  void init(Map<Uri, Set<Uri>> groups) {
-    switch (uri.host) {
+    _groups.clear();
-      case hostAlbums:
+    _groups.addAll(groups);
-        return albumGrouping;
-      default:
-        return null;
-    }
   }
 
-  void clear() => _groups.clear();
-
-  // TODO TLAD [nested] invalidate summary for derived filters (parent groups, dynamic albums)
   void addToGroup(Set<Uri> childrenUris, Uri? destinationGroup) {
     _removeFromGroups(childrenUris);
     if (destinationGroup != null) {
@@ -60,10 +55,10 @@ class FilterGrouping<T extends GroupBaseFilter> with ChangeNotifier {
 
   void rename(Uri oldUri, Uri newUri) {
     final childrenUris = _groups[oldUri];
-    if (childrenUris != null) {
+    if (childrenUris == null) return;
-      // local copy to prevent concurrent modification
+
-      addToGroup(Set.of(childrenUris), newUri);
+    // local copy to prevent concurrent modification
-    }
+    addToGroup(Set.of(childrenUris), newUri);
     eventBus.fire(GroupUriChangedEvent(oldUri, newUri));
   }
 
@@ -243,10 +238,19 @@ class FilterGrouping<T extends GroupBaseFilter> with ChangeNotifier {
     return null;
   }
 
+  static FilterGrouping? forUri(Uri uri) {
+    switch (uri.host) {
+      case hostAlbums:
+        return albumGrouping;
+      default:
+        return null;
+    }
+  }
+
   // serialization
 
   static String toJson(Map<Uri, Set<Uri>> groups) => jsonEncode(groups.map((parentUri, childrenUris) {
-        return MapEntry(parentUri.toString(), childrenUris.map((v) => v.toString()));
+        return MapEntry(parentUri.toString(), childrenUris.map((v) => v.toString()).toList());
       }));
 
   static Map<Uri, Set<Uri>>? fromJson(String? jsonString) {

lib/model/settings/modules/filter_grids.dart

@@ -7,9 +7,9 @@ import 'package:aves_model/aves_model.dart';
 import 'package:synchronized/synchronized.dart';
 
 mixin FilterGridsSettings on SettingsAccess {
-  AlbumChipSectionFactor get albumSectionFactor => getEnumOrDefault(SettingKeys.albumGroupFactorKey, SettingsDefaults.albumGroupFactor, AlbumChipSectionFactor.values);
+  AlbumChipSectionFactor get albumSectionFactor => getEnumOrDefault(SettingKeys.albumSectionFactorKey, SettingsDefaults.albumGroupFactor, AlbumChipSectionFactor.values);
 
-  set albumSectionFactor(AlbumChipSectionFactor newValue) => set(SettingKeys.albumGroupFactorKey, newValue.toString());
+  set albumSectionFactor(AlbumChipSectionFactor newValue) => set(SettingKeys.albumSectionFactorKey, newValue.toString());
 
   ChipSortFactor get albumSortFactor => getEnumOrDefault(SettingKeys.albumSortFactorKey, SettingsDefaults.chipListSortFactor, ChipSortFactor.values);
 
@@ -59,7 +59,11 @@ mixin FilterGridsSettings on SettingsAccess {
 
   void setShowTitleQuery(String routeName, bool newValue) => set(SettingKeys.showTitleQueryPrefixKey + routeName, newValue);
 
-  // TODO TLAD [nested] save/load
+  Map<Uri, Set<Uri>> get albumGroups => FilterGrouping.fromJson(getString(SettingKeys.albumGroupsKey)) ?? {};
+
+  set albumGroups(Map<Uri, Set<Uri>> groups) => set(SettingKeys.albumGroupsKey, FilterGrouping.toJson(groups));
+
+  // listening
 
   final _lockForPins = Lock();
 
@@ -97,4 +101,6 @@ mixin FilterGridsSettings on SettingsAccess {
       }
     });
   }
+
+  void saveAlbumGroups() => albumGroups = albumGrouping.allGroups;
 }

lib/model/settings/modules/navigation.dart

@@ -77,6 +77,8 @@ mixin NavigationSettings on SettingsAccess {
 
   set drawerPageBookmarks(List<String> newValue) => set(SettingKeys.drawerPageBookmarksKey, newValue);
 
+  // listening
+
   final _lockForBookmarks = Lock();
 
   Future<void> updateBookmarkedDynamicAlbums(Map<DynamicAlbumFilter, DynamicAlbumFilter?> changes) async {

lib/model/settings/settings.dart

@@ -69,9 +69,20 @@ class Settings with ChangeNotifier, SettingsAccess, SearchSettings, AppSettings,
   Future<void> init({required bool monitorPlatformSettings}) async {
     await store.init();
     resetAppliedLocale();
+    _unregister();
+    _register(monitorPlatformSettings);
+    initAppSettings();
+  }
+
+  void _unregister() {
+    albumGrouping.removeListener(saveAlbumGroups);
     _subscriptions
       ..forEach((sub) => sub.cancel())
       ..clear();
+  }
+
+  void _register(bool monitorPlatformSettings) {
+    albumGrouping.addListener(saveAlbumGroups);
     _subscriptions.add(dynamicAlbums.eventBus.on<DynamicAlbumChangedEvent>().listen((e) {
       final changes = e.changes;
       updateBookmarkedDynamicAlbums(changes);
@@ -86,7 +97,6 @@ class Settings with ChangeNotifier, SettingsAccess, SearchSettings, AppSettings,
     if (monitorPlatformSettings) {
       _subscriptions.add(_platformSettingsChangeChannel.receiveBroadcastStream().listen((event) => _onPlatformSettingsChanged(event as Map?)));
     }
-    initAppSettings();
   }
 
   Future<void> reload() => store.reload();
@@ -387,12 +397,13 @@ class Settings with ChangeNotifier, SettingsAccess, SearchSettings, AppSettings,
             case SettingKeys.collectionSortFactorKey:
             case SettingKeys.thumbnailLocationIconKey:
             case SettingKeys.thumbnailTagIconKey:
-            case SettingKeys.albumGroupFactorKey:
+            case SettingKeys.albumSectionFactorKey:
             case SettingKeys.albumSortFactorKey:
             case SettingKeys.countrySortFactorKey:
             case SettingKeys.stateSortFactorKey:
             case SettingKeys.placeSortFactorKey:
             case SettingKeys.tagSortFactorKey:
+            case SettingKeys.albumGroupsKey:
             case SettingKeys.imageBackgroundKey:
             case SettingKeys.videoAutoPlayModeKey:
             case SettingKeys.videoBackgroundModeKey:

lib/model/source/media_store_source.dart

@@ -6,6 +6,7 @@ import 'package:aves/model/entry/entry.dart';
 import 'package:aves/model/entry/origins.dart';
 import 'package:aves/model/favourites.dart';
 import 'package:aves/model/filters/covered/stored_album.dart';
+import 'package:aves/model/grouping/common.dart';
 import 'package:aves/model/settings/settings.dart';
 import 'package:aves/model/source/analysis_controller.dart';
 import 'package:aves/model/source/collection_source.dart';
@@ -59,6 +60,7 @@ class MediaStoreSource extends CollectionSource {
     await localMediaDb.init();
     await vaults.init();
     await favourites.init();
+    albumGrouping.init(settings.albumGroups);
     await covers.init();
     await dynamicAlbums.init();
 

lib/widgets/debug/settings.dart

@@ -77,6 +77,7 @@ class _DebugSettingsSectionState extends State<DebugSettingsSection> with Automa
                   'systemLocales': '${WidgetsBinding.instance.platformDispatcher.locales}',
                   'topEntryIds': '${settings.topEntryIds}',
                   'longPressTimeout': '${settings.longPressTimeout}',
+                  'albumGroups': toMultiline(settings.albumGroups.entries),
                 },
               ),
             ),

plugins/aves_model/lib/src/settings/keys.dart

@@ -76,7 +76,7 @@ class SettingKeys {
   static const showThumbnailVideoDurationKey = 'show_thumbnail_video_duration';
 
   // filter grids
-  static const albumGroupFactorKey = 'album_group_factor';
+  static const albumSectionFactorKey = 'album_section_factor';
   static const albumSortFactorKey = 'album_sort_factor';
   static const countrySortFactorKey = 'country_sort_factor';
   static const stateSortFactorKey = 'state_sort_factor';
@@ -87,6 +87,7 @@ class SettingKeys {
   static const stateSortReverseKey = 'state_sort_reverse';
   static const placeSortReverseKey = 'place_sort_reverse';
   static const tagSortReverseKey = 'tag_sort_reverse';
+  static const albumGroupsKey = 'album_groups';
   static const pinnedFiltersKey = 'pinned_filters';
   static const hiddenFiltersKey = 'hidden_filters';
   static const deactivatedHiddenFiltersKey = 'deactivated_hidden_filters';

test/model/filters_test.dart

@@ -35,7 +35,7 @@ void main() {
   });
 
   tearDown(() async {
-    albumGrouping.clear();
+    albumGrouping.init({});
     await getIt.reset();
   });
 

test/model/grouping/common_test.dart

@@ -23,7 +23,7 @@ void main() {
   });
 
   tearDown(() async {
-    albumGrouping.clear();
+    albumGrouping.init({});
     await dynamicAlbums.clear();
     await getIt.reset();
   });