feat(mobile): hash assets in isolate (#18924)

mobile/lib/utils/migration.dart

@@ -1,10 +1,13 @@
 // ignore_for_file: avoid-unsafe-collection-methods
 
 import 'dart:async';
+import 'dart:convert';
 import 'dart:io';
 
+import 'package:drift/drift.dart';
 import 'package:flutter/foundation.dart';
 import 'package:immich_mobile/domain/models/store.model.dart';
+import 'package:immich_mobile/domain/utils/background_sync.dart';
 import 'package:immich_mobile/entities/album.entity.dart';
 import 'package:immich_mobile/entities/android_device_asset.entity.dart';
 import 'package:immich_mobile/entities/asset.entity.dart';
@@ -13,14 +16,16 @@ import 'package:immich_mobile/entities/ios_device_asset.entity.dart';
 import 'package:immich_mobile/entities/store.entity.dart';
 import 'package:immich_mobile/infrastructure/entities/device_asset.entity.dart';
 import 'package:immich_mobile/infrastructure/entities/exif.entity.dart';
+import 'package:immich_mobile/infrastructure/entities/local_asset.entity.drift.dart';
 import 'package:immich_mobile/infrastructure/entities/store.entity.dart';
 import 'package:immich_mobile/infrastructure/entities/user.entity.dart';
+import 'package:immich_mobile/infrastructure/repositories/db.repository.dart';
 import 'package:immich_mobile/utils/diff.dart';
 import 'package:isar/isar.dart';
 // ignore: import_rule_photo_manager
 import 'package:photo_manager/photo_manager.dart';
 
-const int targetVersion = 11;
+const int targetVersion = 12;
 
 Future<void> migrateDatabaseIfNeeded(Isar db) async {
   final int version = Store.get(StoreKey.version, targetVersion);
@@ -45,7 +50,15 @@ Future<void> migrateDatabaseIfNeeded(Isar db) async {
     await _migrateDeviceAsset(db);
   }
 
-  final shouldTruncate = version < 8 && version < targetVersion;
+  if (version < 12 && (!kReleaseMode)) {
+    final backgroundSync = BackgroundSyncManager();
+    await backgroundSync.syncLocal();
+    final drift = Drift();
+    await _migrateDeviceAssetToSqlite(db, drift);
+    await drift.close();
+  }
+
+  final shouldTruncate = version < 8 || version < targetVersion;
   if (shouldTruncate) {
     await _migrateTo(db, targetVersion);
   }
@@ -154,6 +167,28 @@ Future<void> _migrateDeviceAsset(Isar db) async {
   });
 }
 
+Future<void> _migrateDeviceAssetToSqlite(Isar db, Drift drift) async {
+  final isarDeviceAssets =
+      await db.deviceAssetEntitys.where().sortByAssetId().findAll();
+  await drift.batch((batch) {
+    for (final deviceAsset in isarDeviceAssets) {
+      final companion = LocalAssetEntityCompanion(
+        updatedAt: Value(deviceAsset.modifiedTime),
+        id: Value(deviceAsset.assetId),
+        checksum: Value(base64.encode(deviceAsset.hash)),
+      );
+      batch.insert<$LocalAssetEntityTable, LocalAssetEntityData>(
+        drift.localAssetEntity,
+        companion,
+        onConflict: DoUpdate(
+          (_) => companion,
+          where: (old) => old.updatedAt.equals(deviceAsset.modifiedTime),
+        ),
+      );
+    }
+  });
+}
+
 class _DeviceAsset {
   final String assetId;
   final List<int>? hash;