mirror of
https://github.com/KevinMidboe/immich.git
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feature(mobile): sync assets, albums & users to local database on device (#1759)
* feature(mobile): sync assets, albums & users to local database on device * try to fix tests * move DB sync operations to new SyncService * clear db on user logout * fix reason for endless loading timeline * fix error when deleting album * fix thumbnail of device albums * add a few comments * fix Hive box not open in album service when loading local assets * adjust tests to int IDs * fix bug: show all albums when Recent is selected * update generated api * reworked Recents album isAll handling * guard against wrongly interleaved sync operations * fix: timeline asset ordering (sort asset state by created at) * fix: sort assets in albums by created at
This commit is contained in:
Fynn Petersen-Frey
committed by
GitHub
GitHub
parent
8f11529a75
commit
8708867c1c
558
mobile/lib/shared/services/sync.service.dart
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558
mobile/lib/shared/services/sync.service.dart
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@@ -0,0 +1,558 @@
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import 'dart:async';
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import 'package:collection/collection.dart';
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import 'package:flutter/foundation.dart';
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import 'package:hooks_riverpod/hooks_riverpod.dart';
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import 'package:immich_mobile/shared/models/album.dart';
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import 'package:immich_mobile/shared/models/asset.dart';
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import 'package:immich_mobile/shared/models/exif_info.dart';
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import 'package:immich_mobile/shared/models/store.dart';
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import 'package:immich_mobile/shared/models/user.dart';
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import 'package:immich_mobile/shared/providers/db.provider.dart';
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import 'package:immich_mobile/utils/async_mutex.dart';
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import 'package:immich_mobile/utils/diff.dart';
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import 'package:immich_mobile/utils/tuple.dart';
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import 'package:isar/isar.dart';
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import 'package:openapi/api.dart';
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import 'package:photo_manager/photo_manager.dart';
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final syncServiceProvider =
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Provider((ref) => SyncService(ref.watch(dbProvider)));
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class SyncService {
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final Isar _db;
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final AsyncMutex _lock = AsyncMutex();
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SyncService(this._db);
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// public methods:
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/// Syncs users from the server to the local database
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/// Returns `true`if there were any changes
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Future<bool> syncUsersFromServer(List<User> users) async {
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users.sortBy((u) => u.id);
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final dbUsers = await _db.users.where().sortById().findAll();
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final List<int> toDelete = [];
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final List<User> toUpsert = [];
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final changes = diffSortedListsSync(
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users,
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dbUsers,
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compare: (User a, User b) => a.id.compareTo(b.id),
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both: (User a, User b) {
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if (a.updatedAt != b.updatedAt) {
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toUpsert.add(a);
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return true;
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}
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return false;
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},
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onlyFirst: (User a) => toUpsert.add(a),
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onlySecond: (User b) => toDelete.add(b.isarId),
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);
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if (changes) {
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await _db.writeTxn(() async {
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await _db.users.deleteAll(toDelete);
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await _db.users.putAll(toUpsert);
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});
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}
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return changes;
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}
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/// Syncs remote assets owned by the logged-in user to the DB
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/// Returns `true` if there were any changes
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Future<bool> syncRemoteAssetsToDb(List<Asset> remote) =>
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_lock.run(() => _syncRemoteAssetsToDb(remote));
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/// Syncs remote albums to the database
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/// returns `true` if there were any changes
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Future<bool> syncRemoteAlbumsToDb(
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List<AlbumResponseDto> remote, {
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required bool isShared,
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required FutureOr<AlbumResponseDto> Function(AlbumResponseDto) loadDetails,
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}) =>
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_lock.run(() => _syncRemoteAlbumsToDb(remote, isShared, loadDetails));
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/// Syncs all device albums and their assets to the database
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/// Returns `true` if there were any changes
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Future<bool> syncLocalAlbumAssetsToDb(List<AssetPathEntity> onDevice) =>
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_lock.run(() => _syncLocalAlbumAssetsToDb(onDevice));
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/// returns all Asset IDs that are not contained in the existing list
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List<int> sharedAssetsToRemove(
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List<Asset> deleteCandidates,
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List<Asset> existing,
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) {
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if (deleteCandidates.isEmpty) {
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return [];
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}
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deleteCandidates.sort(Asset.compareById);
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existing.sort(Asset.compareById);
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return _diffAssets(existing, deleteCandidates, compare: Asset.compareById)
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.third
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.map((e) => e.id)
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.toList();
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}
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// private methods:
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/// Syncs remote assets to the databas
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/// returns `true` if there were any changes
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Future<bool> _syncRemoteAssetsToDb(List<Asset> remote) async {
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final User user = Store.get(StoreKey.currentUser);
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final List<Asset> inDb = await _db.assets
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.filter()
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.ownerIdEqualTo(user.isarId)
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.sortByDeviceId()
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.thenByLocalId()
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.findAll();
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remote.sort(Asset.compareByDeviceIdLocalId);
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final diff = _diffAssets(remote, inDb, remote: true);
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if (diff.first.isEmpty && diff.second.isEmpty && diff.third.isEmpty) {
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return false;
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}
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final idsToDelete = diff.third.map((e) => e.id).toList();
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try {
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await _db.writeTxn(() => _db.assets.deleteAll(idsToDelete));
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await _upsertAssetsWithExif(diff.first + diff.second);
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} on IsarError catch (e) {
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debugPrint(e.toString());
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}
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return true;
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}
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/// Syncs remote albums to the database
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/// returns `true` if there were any changes
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Future<bool> _syncRemoteAlbumsToDb(
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List<AlbumResponseDto> remote,
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bool isShared,
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FutureOr<AlbumResponseDto> Function(AlbumResponseDto) loadDetails,
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) async {
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remote.sortBy((e) => e.id);
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final baseQuery = _db.albums.where().remoteIdIsNotNull().filter();
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final QueryBuilder<Album, Album, QAfterFilterCondition> query;
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if (isShared) {
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query = baseQuery.sharedEqualTo(true);
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} else {
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final User me = Store.get(StoreKey.currentUser);
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query = baseQuery.owner((q) => q.isarIdEqualTo(me.isarId));
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}
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final List<Album> dbAlbums = await query.sortByRemoteId().findAll();
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final List<Asset> toDelete = [];
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final List<Asset> existing = [];
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final bool changes = await diffSortedLists(
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remote,
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dbAlbums,
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compare: (AlbumResponseDto a, Album b) => a.id.compareTo(b.remoteId!),
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both: (AlbumResponseDto a, Album b) =>
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_syncRemoteAlbum(a, b, toDelete, existing, loadDetails),
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onlyFirst: (AlbumResponseDto a) =>
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_addAlbumFromServer(a, existing, loadDetails),
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onlySecond: (Album a) => _removeAlbumFromDb(a, toDelete),
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);
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if (isShared && toDelete.isNotEmpty) {
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final List<int> idsToRemove = sharedAssetsToRemove(toDelete, existing);
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if (idsToRemove.isNotEmpty) {
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await _db.writeTxn(() => _db.assets.deleteAll(idsToRemove));
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}
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} else {
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assert(toDelete.isEmpty);
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}
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return changes;
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}
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/// syncs albums from the server to the local database (does not support
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/// syncing changes from local back to server)
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/// accumulates
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Future<bool> _syncRemoteAlbum(
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AlbumResponseDto dto,
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Album album,
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List<Asset> deleteCandidates,
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List<Asset> existing,
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FutureOr<AlbumResponseDto> Function(AlbumResponseDto) loadDetails,
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) async {
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if (!_hasAlbumResponseDtoChanged(dto, album)) {
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return false;
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}
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dto = await loadDetails(dto);
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if (dto.assetCount != dto.assets.length) {
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return false;
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}
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final assetsInDb =
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await album.assets.filter().sortByDeviceId().thenByLocalId().findAll();
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final List<Asset> assetsOnRemote = dto.getAssets();
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assetsOnRemote.sort(Asset.compareByDeviceIdLocalId);
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final d = _diffAssets(assetsOnRemote, assetsInDb);
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final List<Asset> toAdd = d.first, toUpdate = d.second, toUnlink = d.third;
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// update shared users
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final List<User> sharedUsers = album.sharedUsers.toList(growable: false);
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sharedUsers.sort((a, b) => a.id.compareTo(b.id));
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dto.sharedUsers.sort((a, b) => a.id.compareTo(b.id));
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final List<String> userIdsToAdd = [];
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final List<User> usersToUnlink = [];
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diffSortedListsSync(
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dto.sharedUsers,
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sharedUsers,
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compare: (UserResponseDto a, User b) => a.id.compareTo(b.id),
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both: (a, b) => false,
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onlyFirst: (UserResponseDto a) => userIdsToAdd.add(a.id),
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onlySecond: (User a) => usersToUnlink.add(a),
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);
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// for shared album: put missing album assets into local DB
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final resultPair = await _linkWithExistingFromDb(toAdd);
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await _upsertAssetsWithExif(resultPair.second);
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final assetsToLink = resultPair.first + resultPair.second;
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final usersToLink = (await _db.users.getAllById(userIdsToAdd)).cast<User>();
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album.name = dto.albumName;
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album.shared = dto.shared;
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album.modifiedAt = DateTime.parse(dto.updatedAt).toUtc();
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if (album.thumbnail.value?.remoteId != dto.albumThumbnailAssetId) {
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album.thumbnail.value = await _db.assets
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.where()
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.remoteIdEqualTo(dto.albumThumbnailAssetId)
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.findFirst();
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}
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// write & commit all changes to DB
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try {
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await _db.writeTxn(() async {
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await _db.assets.putAll(toUpdate);
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await album.thumbnail.save();
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await album.sharedUsers
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.update(link: usersToLink, unlink: usersToUnlink);
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await album.assets.update(link: assetsToLink, unlink: toUnlink.cast());
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await _db.albums.put(album);
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});
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} on IsarError catch (e) {
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debugPrint(e.toString());
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}
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if (album.shared || dto.shared) {
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final userId = Store.get<User>(StoreKey.currentUser)!.isarId;
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final foreign =
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await album.assets.filter().not().ownerIdEqualTo(userId).findAll();
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existing.addAll(foreign);
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// delete assets in DB unless they belong to this user or part of some other shared album
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deleteCandidates.addAll(toUnlink.where((a) => a.ownerId != userId));
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}
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return true;
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}
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/// Adds a remote album to the database while making sure to add any foreign
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/// (shared) assets to the database beforehand
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/// accumulates assets already existing in the database
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Future<void> _addAlbumFromServer(
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AlbumResponseDto dto,
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List<Asset> existing,
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FutureOr<AlbumResponseDto> Function(AlbumResponseDto) loadDetails,
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) async {
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if (dto.assetCount != dto.assets.length) {
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dto = await loadDetails(dto);
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}
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if (dto.assetCount == dto.assets.length) {
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// in case an album contains assets not yet present in local DB:
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// put missing album assets into local DB
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final result = await _linkWithExistingFromDb(dto.getAssets());
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existing.addAll(result.first);
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await _upsertAssetsWithExif(result.second);
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final Album a = await Album.remote(dto);
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await _db.writeTxn(() => _db.albums.store(a));
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}
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}
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/// Accumulates all suitable album assets to the `deleteCandidates` and
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/// removes the album from the database.
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Future<void> _removeAlbumFromDb(
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Album album,
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List<Asset> deleteCandidates,
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) async {
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if (album.isLocal) {
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// delete assets in DB unless they are remote or part of some other album
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deleteCandidates.addAll(
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await album.assets.filter().remoteIdIsNull().findAll(),
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);
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} else if (album.shared) {
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final User user = Store.get(StoreKey.currentUser);
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// delete assets in DB unless they belong to this user or are part of some other shared album
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deleteCandidates.addAll(
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await album.assets.filter().not().ownerIdEqualTo(user.isarId).findAll(),
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);
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}
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final bool ok = await _db.writeTxn(() => _db.albums.delete(album.id));
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assert(ok);
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}
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/// Syncs all device albums and their assets to the database
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/// Returns `true` if there were any changes
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Future<bool> _syncLocalAlbumAssetsToDb(List<AssetPathEntity> onDevice) async {
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onDevice.sort((a, b) => a.id.compareTo(b.id));
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final List<Album> inDb =
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await _db.albums.where().localIdIsNotNull().sortByLocalId().findAll();
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final List<Asset> deleteCandidates = [];
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final List<Asset> existing = [];
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final bool anyChanges = await diffSortedLists(
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onDevice,
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inDb,
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compare: (AssetPathEntity a, Album b) => a.id.compareTo(b.localId!),
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both: (AssetPathEntity ape, Album album) =>
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_syncAlbumInDbAndOnDevice(ape, album, deleteCandidates, existing),
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onlyFirst: (AssetPathEntity ape) => _addAlbumFromDevice(ape, existing),
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onlySecond: (Album a) => _removeAlbumFromDb(a, deleteCandidates),
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);
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final pair = _handleAssetRemoval(deleteCandidates, existing);
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if (pair.first.isNotEmpty || pair.second.isNotEmpty) {
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await _db.writeTxn(() async {
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await _db.assets.deleteAll(pair.first);
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await _db.assets.putAll(pair.second);
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});
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}
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return anyChanges;
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}
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/// Syncs the device album to the album in the database
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/// returns `true` if there were any changes
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/// Accumulates asset candidates to delete and those already existing in DB
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Future<bool> _syncAlbumInDbAndOnDevice(
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AssetPathEntity ape,
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Album album,
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List<Asset> deleteCandidates,
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List<Asset> existing, [
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bool forceRefresh = false,
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]) async {
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if (!forceRefresh && !await _hasAssetPathEntityChanged(ape, album)) {
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return false;
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}
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if (!forceRefresh && await _syncDeviceAlbumFast(ape, album)) {
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return true;
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}
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// general case, e.g. some assets have been deleted
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final inDb = await album.assets.filter().sortByLocalId().findAll();
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final List<Asset> onDevice = await ape.getAssets();
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onDevice.sort(Asset.compareByLocalId);
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final d = _diffAssets(onDevice, inDb, compare: Asset.compareByLocalId);
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final List<Asset> toAdd = d.first, toUpdate = d.second, toDelete = d.third;
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final result = await _linkWithExistingFromDb(toAdd);
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deleteCandidates.addAll(toDelete);
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existing.addAll(result.first);
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album.name = ape.name;
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album.modifiedAt = ape.lastModified!;
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if (album.thumbnail.value != null &&
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toDelete.contains(album.thumbnail.value)) {
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album.thumbnail.value = null;
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}
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try {
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await _db.writeTxn(() async {
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await _db.assets.putAll(result.second);
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await _db.assets.putAll(toUpdate);
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await album.assets
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.update(link: result.first + result.second, unlink: toDelete);
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await _db.albums.put(album);
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album.thumbnail.value ??= await album.assets.filter().findFirst();
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await album.thumbnail.save();
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});
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} on IsarError catch (e) {
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debugPrint(e.toString());
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}
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return true;
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}
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/// fast path for common case: only new assets were added to device album
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/// returns `true` if successfull, else `false`
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Future<bool> _syncDeviceAlbumFast(AssetPathEntity ape, Album album) async {
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final int totalOnDevice = await ape.assetCountAsync;
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final AssetPathEntity? modified = totalOnDevice > album.assetCount
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? await ape.fetchPathProperties(
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filterOptionGroup: FilterOptionGroup(
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updateTimeCond: DateTimeCond(
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min: album.modifiedAt.add(const Duration(seconds: 1)),
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max: ape.lastModified!,
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),
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),
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)
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: null;
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if (modified == null) {
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return false;
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}
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final List<Asset> newAssets = await modified.getAssets();
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if (totalOnDevice != album.assets.length + newAssets.length) {
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return false;
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}
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album.modifiedAt = ape.lastModified!.toUtc();
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final result = await _linkWithExistingFromDb(newAssets);
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try {
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await _db.writeTxn(() async {
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await _db.assets.putAll(result.second);
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await album.assets.update(link: result.first + result.second);
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await _db.albums.put(album);
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});
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} on IsarError catch (e) {
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debugPrint(e.toString());
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}
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return true;
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}
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/// Adds a new album from the device to the database and Accumulates all
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/// assets already existing in the database to the list of `existing` assets
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Future<void> _addAlbumFromDevice(
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AssetPathEntity ape,
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List<Asset> existing,
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) async {
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final Album a = Album.local(ape);
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final result = await _linkWithExistingFromDb(await ape.getAssets());
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await _upsertAssetsWithExif(result.second);
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existing.addAll(result.first);
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a.assets.addAll(result.first);
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a.assets.addAll(result.second);
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final thumb = result.first.firstOrNull ?? result.second.firstOrNull;
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a.thumbnail.value = thumb;
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try {
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await _db.writeTxn(() => _db.albums.store(a));
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} on IsarError catch (e) {
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debugPrint(e.toString());
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}
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}
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/// Returns a tuple (existing, updated)
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Future<Pair<List<Asset>, List<Asset>>> _linkWithExistingFromDb(
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List<Asset> assets,
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) async {
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if (assets.isEmpty) {
|
||||
return const Pair([], []);
|
||||
}
|
||||
final List<Asset> inDb = await _db.assets
|
||||
.where()
|
||||
.anyOf(
|
||||
assets,
|
||||
(q, Asset e) => q.localIdDeviceIdEqualTo(e.localId, e.deviceId),
|
||||
)
|
||||
.sortByDeviceId()
|
||||
.thenByLocalId()
|
||||
.findAll();
|
||||
assets.sort(Asset.compareByDeviceIdLocalId);
|
||||
final List<Asset> existing = [], toUpsert = [];
|
||||
diffSortedListsSync(
|
||||
inDb,
|
||||
assets,
|
||||
compare: Asset.compareByDeviceIdLocalId,
|
||||
both: (Asset a, Asset b) {
|
||||
if ((a.isLocal || !b.isLocal) &&
|
||||
(a.isRemote || !b.isRemote) &&
|
||||
a.updatedAt == b.updatedAt) {
|
||||
existing.add(a);
|
||||
return false;
|
||||
} else {
|
||||
toUpsert.add(b.updateFromDb(a));
|
||||
return true;
|
||||
}
|
||||
},
|
||||
onlyFirst: (Asset a) => throw Exception("programming error"),
|
||||
onlySecond: (Asset b) => toUpsert.add(b),
|
||||
);
|
||||
return Pair(existing, toUpsert);
|
||||
}
|
||||
|
||||
/// Inserts or updates the assets in the database with their ExifInfo (if any)
|
||||
Future<void> _upsertAssetsWithExif(List<Asset> assets) async {
|
||||
if (assets.isEmpty) {
|
||||
return;
|
||||
}
|
||||
final exifInfos = assets.map((e) => e.exifInfo).whereNotNull().toList();
|
||||
try {
|
||||
await _db.writeTxn(() async {
|
||||
await _db.assets.putAll(assets);
|
||||
for (final Asset added in assets) {
|
||||
added.exifInfo?.id = added.id;
|
||||
}
|
||||
await _db.exifInfos.putAll(exifInfos);
|
||||
});
|
||||
} on IsarError catch (e) {
|
||||
debugPrint(e.toString());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns a triple(toAdd, toUpdate, toRemove)
|
||||
Triple<List<Asset>, List<Asset>, List<Asset>> _diffAssets(
|
||||
List<Asset> assets,
|
||||
List<Asset> inDb, {
|
||||
bool? remote,
|
||||
int Function(Asset, Asset) compare = Asset.compareByDeviceIdLocalId,
|
||||
}) {
|
||||
final List<Asset> toAdd = [];
|
||||
final List<Asset> toUpdate = [];
|
||||
final List<Asset> toRemove = [];
|
||||
diffSortedListsSync(
|
||||
inDb,
|
||||
assets,
|
||||
compare: compare,
|
||||
both: (Asset a, Asset b) {
|
||||
if (a.updatedAt.isBefore(b.updatedAt) ||
|
||||
(!a.isLocal && b.isLocal) ||
|
||||
(!a.isRemote && b.isRemote)) {
|
||||
toUpdate.add(b.updateFromDb(a));
|
||||
debugPrint("both");
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
},
|
||||
onlyFirst: (Asset a) {
|
||||
if (remote == true && a.isLocal) {
|
||||
if (a.remoteId != null) {
|
||||
a.remoteId = null;
|
||||
toUpdate.add(a);
|
||||
}
|
||||
} else if (remote == false && a.isRemote) {
|
||||
if (a.isLocal) {
|
||||
a.isLocal = false;
|
||||
toUpdate.add(a);
|
||||
}
|
||||
} else {
|
||||
toRemove.add(a);
|
||||
}
|
||||
},
|
||||
onlySecond: (Asset b) => toAdd.add(b),
|
||||
);
|
||||
return Triple(toAdd, toUpdate, toRemove);
|
||||
}
|
||||
|
||||
/// returns a tuple (toDelete toUpdate) when assets are to be deleted
|
||||
Pair<List<int>, List<Asset>> _handleAssetRemoval(
|
||||
List<Asset> deleteCandidates,
|
||||
List<Asset> existing,
|
||||
) {
|
||||
if (deleteCandidates.isEmpty) {
|
||||
return const Pair([], []);
|
||||
}
|
||||
deleteCandidates.sort(Asset.compareById);
|
||||
existing.sort(Asset.compareById);
|
||||
final triple =
|
||||
_diffAssets(existing, deleteCandidates, compare: Asset.compareById);
|
||||
return Pair(triple.third.map((e) => e.id).toList(), triple.second);
|
||||
}
|
||||
|
||||
/// returns `true` if the albums differ on the surface
|
||||
Future<bool> _hasAssetPathEntityChanged(AssetPathEntity a, Album b) async {
|
||||
return a.name != b.name ||
|
||||
a.lastModified != b.modifiedAt ||
|
||||
await a.assetCountAsync != b.assetCount;
|
||||
}
|
||||
|
||||
/// returns `true` if the albums differ on the surface
|
||||
bool _hasAlbumResponseDtoChanged(AlbumResponseDto dto, Album a) {
|
||||
return dto.assetCount != a.assetCount ||
|
||||
dto.albumName != a.name ||
|
||||
dto.albumThumbnailAssetId != a.thumbnail.value?.remoteId ||
|
||||
dto.shared != a.shared ||
|
||||
DateTime.parse(dto.updatedAt).toUtc() != a.modifiedAt.toUtc();
|
||||
}
|
||||
Reference in New Issue
Block a user