feat(mobile): efficient asset sync (#3945)

* feat(mobile): efficient asset sync

mobile/lib/shared/providers/app_state.provider.dart

@@ -1,4 +1,6 @@
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/modules/album/providers/album.provider.dart';
+import 'package:immich_mobile/modules/album/providers/shared_album.provider.dart';
 import 'package:immich_mobile/modules/backup/background_service/background.service.dart';
 import 'package:immich_mobile/modules/backup/models/backup_state.model.dart';
 import 'package:immich_mobile/modules/backup/providers/backup.provider.dart';
@@ -11,6 +13,7 @@ import 'package:immich_mobile/modules/settings/providers/notification_permission
 import 'package:immich_mobile/shared/providers/asset.provider.dart';
 import 'package:immich_mobile/shared/providers/release_info.provider.dart';
 import 'package:immich_mobile/shared/providers/server_info.provider.dart';
+import 'package:immich_mobile/shared/providers/tab.provider.dart';
 import 'package:immich_mobile/shared/providers/websocket.provider.dart';
 import 'package:immich_mobile/shared/services/immich_logger.service.dart';
 import 'package:permission_handler/permission_handler.dart';
@@ -47,8 +50,18 @@ class AppStateNotiifer extends StateNotifier<AppStateEnum> {
     if (isAuthenticated && (permission.isGranted || permission.isLimited)) {
       ref.read(backupProvider.notifier).resumeBackup();
       ref.read(backgroundServiceProvider).resumeServiceIfEnabled();
-      ref.watch(assetProvider.notifier).getAllAsset();
-      ref.watch(serverInfoProvider.notifier).getServerVersion();
+      ref.read(serverInfoProvider.notifier).getServerVersion();
+      switch (ref.read(tabProvider)) {
+        case TabEnum.home:
+          ref.read(assetProvider.notifier).getAllAsset();
+        case TabEnum.search:
+        // nothing to do
+        case TabEnum.sharing:
+          ref.read(assetProvider.notifier).getPartnerAssets();
+          ref.read(sharedAlbumProvider.notifier).getAllSharedAlbums();
+        case TabEnum.library:
+          ref.read(albumProvider.notifier).getAllAlbums();
+      }
     }
 
     ref.watch(websocketProvider.notifier).connect();

mobile/lib/shared/providers/asset.provider.dart

@@ -27,6 +27,7 @@ class AssetNotifier extends StateNotifier<bool> {
   final log = Logger('AssetNotifier');
   bool _getAllAssetInProgress = false;
   bool _deleteInProgress = false;
+  bool _getPartnerAssetsInProgress = false;
 
   AssetNotifier(
     this._assetService,
@@ -49,15 +50,10 @@ class AssetNotifier extends StateNotifier<bool> {
         await clearAssetsAndAlbums(_db);
         log.info("Manual refresh requested, cleared assets and albums from db");
       }
-      await _userService.refreshUsers();
       final bool newRemote = await _assetService.refreshRemoteAssets();
       final bool newLocal = await _albumService.refreshDeviceAlbums();
       debugPrint("newRemote: $newRemote, newLocal: $newLocal");
-      final List<User> partners =
-          await _db.users.filter().isPartnerSharedWithEqualTo(true).findAll();
-      for (User u in partners) {
-        await _assetService.refreshRemoteAssets(u);
-      }
+
       log.info("Load assets: ${stopwatch.elapsedMilliseconds}ms");
     } finally {
       _getAllAssetInProgress = false;
@@ -65,6 +61,27 @@ class AssetNotifier extends StateNotifier<bool> {
     }
   }
 
+  Future<void> getPartnerAssets([User? partner]) async {
+    if (_getPartnerAssetsInProgress) return;
+    try {
+      final stopwatch = Stopwatch()..start();
+      _getPartnerAssetsInProgress = true;
+      if (partner == null) {
+        await _userService.refreshUsers();
+        final List<User> partners =
+            await _db.users.filter().isPartnerSharedWithEqualTo(true).findAll();
+        for (User u in partners) {
+          await _assetService.refreshRemoteAssets(u);
+        }
+      } else {
+        await _assetService.refreshRemoteAssets(partner);
+      }
+      log.info("Load partner assets: ${stopwatch.elapsedMilliseconds}ms");
+    } finally {
+      _getPartnerAssetsInProgress = false;
+    }
+  }
+
   Future<void> clearAllAsset() {
     return clearAssetsAndAlbums(_db);
   }

mobile/lib/shared/providers/tab.provider.dart

@@ -0,0 +1,13 @@
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+
+enum TabEnum {
+  home,
+  search,
+  sharing,
+  library,
+}
+
+/// Provides the currently active tab
+final tabProvider = StateProvider<TabEnum>(
+  (ref) => TabEnum.home,
+);