files: Cleanup repo and update deps

Author: dvd-bnc

lib/assets/icons/file.png

@@ -4,83 +4,34 @@ import 'package:files/backend/database/helper.dart';
 import 'package:files/backend/database/model.dart';
 import 'package:files/backend/folder_provider.dart';
 import 'package:files/backend/stat_cache_proxy.dart';
-import 'package:flutter/material.dart';
 import 'package:path/path.dart' as p;
 import 'package:path_provider/path_provider.dart';
+import 'package:ubuntu_service/ubuntu_service.dart';
 
-class _ProvidersSingleton {
-  _ProvidersSingleton._();
-
-  bool _inited = false;
-
-  late Isar? _isar;
-  late FolderProvider? _folderProvider;
-  late EntityStatCacheHelper? _helper;
-  late StatCacheProxy? _cacheProxy;
-
-  Isar get isar {
-    _checkForAvailability();
-    return _isar!;
-  }
-
-  FolderProvider get folderProvider {
-    _checkForAvailability();
-    return _folderProvider!;
-  }
-
-  EntityStatCacheHelper get helper {
-    _checkForAvailability();
-    return _helper!;
-  }
-
-  StatCacheProxy get cacheProxy {
-    _checkForAvailability();
-    return _cacheProxy!;
-  }
-
-  void _checkForAvailability() {
-    if (!_inited) throw Exception("Providers not inited or disposed");
-  }
-
-  static final _ProvidersSingleton instance = _ProvidersSingleton._();
-
-  Future<void> _init() async {
-    if (_inited) return;
-    WidgetsFlutterBinding.ensureInitialized();
-    final dir = await getApplicationDocumentsDirectory();
-    _isar = await Isar.open(
-      [EntityStatSchema],
-      directory: isarPath(dir),
-    );
-    _folderProvider = await FolderProvider.init();
-    _helper = EntityStatCacheHelper();
-    _cacheProxy = StatCacheProxy();
-    _inited = true;
-  }
-
-  Future<void> _dispose() async {
-    await isar.close();
-    _folderProvider = null;
-    _helper = null;
-    _cacheProxy = null;
-    _inited = false;
-  }
-
-  String isarPath(Directory dir) {
-    final String path = p.join(dir.path, 'isar');
-    if (!Directory(path).existsSync()) Directory(path).create();
-    return path;
-  }
+String _isarPath(Directory dir) {
+  final String path = p.join(dir.path, 'isar');
+  if (!Directory(path).existsSync()) Directory(path).create();
+  return path;
 }
 
-Future<void> initProviders() async => _ProvidersSingleton.instance._init();
-
-Future<void> disposeProviders() async => _ProvidersSingleton.instance._dispose();
+Future<void> initProviders() async {
+  final dir = await getApplicationDocumentsDirectory();
+  final isar = await Isar.open(
+    [EntityStatSchema],
+    directory: _isarPath(dir),
+  );
+  final folderProvider = await FolderProvider.init();
+
+  registerServiceInstance<Isar>(isar);
+  registerServiceInstance<FolderProvider>(folderProvider);
+  registerService<EntityStatCacheHelper>(EntityStatCacheHelper.new);
+  registerService<StatCacheProxy>(StatCacheProxy.new);
+}
 
-Isar get isar => _ProvidersSingleton.instance.isar;
+Isar get isar => getService<Isar>();
 
-FolderProvider get folderProvider => _ProvidersSingleton.instance.folderProvider;
+FolderProvider get folderProvider => getService<FolderProvider>();
 
-EntityStatCacheHelper get helper => _ProvidersSingleton.instance.helper;
+EntityStatCacheHelper get helper => getService<EntityStatCacheHelper>();
 
-StatCacheProxy get cacheProxy => _ProvidersSingleton.instance.cacheProxy;
+StatCacheProxy get cacheProxy => getService<StatCacheProxy>();

lib/assets/icons/folder.png

@@ -14,10 +14,6 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-//credits: @HrX03 for basic UI https://github.com/HrX03/Flux
-
-import 'dart:async';
-
 import 'package:animations/animations.dart';
 import 'package:files/backend/providers.dart';
 import 'package:files/backend/utils.dart';
@@ -27,18 +23,13 @@ import 'package:files/widgets/tab_strip.dart';
 import 'package:files/widgets/workspace.dart';
 import 'package:flutter/material.dart';
 
-// ignore: avoid_void_async
-void main() async {
+Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
-  await init();
+  await initProviders();
 
   runApp(const Files());
 }
 
-Future<void> init() async {
-  await initProviders();
-}
-
 class Files extends StatelessWidget {
   const Files({super.key});