Factor responsibilities into respecive sync services

lib/services/local_sync_service.dart

@@ -143,6 +143,18 @@ class LocalSyncService {
     }
   }
 
+  bool hasGrantedPermissions() {
+    return _prefs.getBool(kHasGrantedPermissionsKey) ?? false;
+  }
+
+  Future<void> setPermissionGranted() async {
+    await _prefs.setBool(kHasGrantedPermissionsKey, true);
+  }
+
+  bool hasCompletedFirstImport() {
+    return _prefs.getBool(kHasCompletedFirstImportKey) ?? false;
+  }
+
   Future<void> _loadAndStorePhotos(
     int fromTime,
     int toTime,

lib/services/sync_service.dart

@@ -135,11 +135,6 @@ class SyncService {
     return _syncStopRequested;
   }
 
-  bool hasCompletedFirstImport() {
-    return _prefs.getBool(LocalSyncService.kHasCompletedFirstImportKey) ??
-        false;
-  }
-
   bool isSyncInProgress() {
     return _existingSync != null;
   }
@@ -148,12 +143,8 @@ class SyncService {
     return _lastSyncStatusEvent;
   }
 
-  bool hasGrantedPermissions() {
-    return _prefs.getBool(LocalSyncService.kHasGrantedPermissionsKey) ?? false;
-  }
-
   Future<void> onPermissionGranted() async {
-    await _prefs.setBool(LocalSyncService.kHasGrantedPermissionsKey, true);
+    await _localSyncService.setPermissionGranted();
     Bus.instance.fire(PermissionGrantedEvent());
     _doSync();
   }
@@ -173,7 +164,7 @@ class SyncService {
 
   Future<void> _doSync() async {
     await _localSyncService.sync();
-    if (hasCompletedFirstImport()) {
+    if (_localSyncService.hasCompletedFirstImport()) {
       await _remoteSyncService.sync();
     }
   }

lib/ui/home_widget.dart

@@ -5,6 +5,7 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter/widgets.dart';
+import 'package:logging/logging.dart';
 import 'package:move_to_background/move_to_background.dart';
 import 'package:photos/core/configuration.dart';
 import 'package:photos/core/event_bus.dart';
@@ -18,8 +19,10 @@ import 'package:photos/events/tab_changed_event.dart';
 import 'package:photos/events/trigger_logout_event.dart';
 import 'package:photos/events/user_logged_out_event.dart';
 import 'package:photos/models/selected_files.dart';
+import 'package:photos/services/local_sync_service.dart';
 import 'package:photos/services/sync_service.dart';
 import 'package:photos/services/update_service.dart';
+import 'package:photos/services/user_service.dart';
 import 'package:photos/ui/app_update_dialog.dart';
 import 'package:photos/ui/backup_folder_selection_page.dart';
 import 'package:photos/ui/collections_gallery_widget.dart';
@@ -29,14 +32,12 @@ import 'package:photos/ui/gallery.dart';
 import 'package:photos/ui/gallery_app_bar_widget.dart';
 import 'package:photos/ui/gallery_footer_widget.dart';
 import 'package:photos/ui/grant_permissions_widget.dart';
+import 'package:photos/ui/landing_page_widget.dart';
 import 'package:photos/ui/loading_photos_widget.dart';
 import 'package:photos/ui/memories_widget.dart';
-import 'package:photos/services/user_service.dart';
 import 'package:photos/ui/nav_bar.dart';
 import 'package:photos/ui/settings_button.dart';
 import 'package:photos/ui/shared_collections_gallery.dart';
-import 'package:logging/logging.dart';
-import 'package:photos/ui/landing_page_widget.dart';
 import 'package:photos/ui/sync_indicator.dart';
 import 'package:photos/utils/dialog_util.dart';
 import 'package:photos/utils/navigation_util.dart';
@@ -202,10 +203,10 @@ class _HomeWidgetState extends State<HomeWidget> {
     if (!Configuration.instance.hasConfiguredAccount()) {
       return LandingPageWidget();
     }
-    if (!SyncService.instance.hasGrantedPermissions()) {
+    if (!LocalSyncService.instance.hasGrantedPermissions()) {
       return GrantPermissionsWidget();
     }
-    if (!SyncService.instance.hasCompletedFirstImport()) {
+    if (!LocalSyncService.instance.hasCompletedFirstImport()) {
       return LoadingPhotosWidget();
     }