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lib/services/warmup_service.dart

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+// Dart imports:
+import 'dart:async';
+
+// Flutter imports:
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:hive_ce/hive.dart';
+
+import 'package:injectable/injectable.dart';
+import 'package:remever/common/resources.dart';
+import 'package:remever/components/notifiers/app_settings.dart';
+import 'package:remever/components/notifiers/home_screen_data.dart';
+import 'package:remever/helpers/hive_creator.dart';
+import 'package:remever/i18n/strings.g.dart';
+import 'package:remever/interfaces/warmup_service.dart';
+import 'package:remever/models/adapters/app_locale_adapter.dart';
+import 'package:remever/models/adapters/theme_mode_adapter.dart';
+
+import '../inject.dart';
+import 'core/enc_keys_service.dart';
+import 'core/lang_service.dart';
+import 'core/theme_service.dart';
+
+///
+/// Сервис прогрева приложения
+///
+@Singleton()
+class WarmupService {
+  WarmupService(this._themeService, this._langService, this._encKeysService);
+
+  /// Сервисы
+  final ThemeService _themeService;
+  final LangService _langService;
+  final EncKeysService _encKeysService;
+
+  /// [Completer] для прогрева приложения
+  final Completer<bool> _firstStartCompleter = Completer<bool>();
+  Completer<bool> get firstStartCompleter => _firstStartCompleter;
+
+  @PostConstruct(preResolve: true)
+  Future<void> common() async {
+    await _registerHiveAdapters();
+    await _openHiveBoxes();
+    await _registerNotifiers();
+  }
+
+  ///
+  /// Инициализация для запуска приложения
+  ///
+  Future<void> firstStart() async {
+    await _setStoragesValue();
+  }
+
+  ///
+  /// Проставнока изначальных значений хранилищ
+  ///
+  Future<void> _setStoragesValue() async {
+    final List<IWarmupService> services = <IWarmupService>[
+      _themeService,
+      _langService,
+    ];
+
+    for (final IWarmupService service in services) {
+      await service.init();
+    }
+  }
+
+  ///
+  /// Регистрация [Hive] адаптеров
+  ///
+  Future<void> _registerHiveAdapters() async {
+    Hive.registerAdapter<ThemeMode>(ThemeModeAdapter());
+    Hive.registerAdapter<AppLocale>(AppLocaleAdapter());
+  }
+
+  ///
+  /// Открытие [Hive] хранилищ
+  ///
+  Future<void> _openHiveBoxes() async {
+    final Map<String, HiveCreator<dynamic>> storageNames =
+        <String, HiveCreator<dynamic>>{
+          Storage.storageAuth: HiveCreator<String>(),
+          Storage.hiveThemeMode: HiveCreator<ThemeMode>(),
+          Storage.hiveLang: HiveCreator<AppLocale>(),
+        };
+
+    for (MapEntry<String, HiveCreator<dynamic>> storage
+        in storageNames.entries) {
+      final String name = storage.key;
+      final Uint8List key = await _encKeysService.getKey(name);
+
+      await storage.value.open(name, HiveAesCipher(key));
+    }
+  }
+
+  ///
+  /// Регистрация нотификаторов
+  ///
+  Future<void> _registerNotifiers() async {
+    getIt.registerLazySingleton<AppSettingsNotifier>(
+      () => AppSettingsNotifier(debugMode: kDebugMode),
+    );
+
+    getIt.registerLazySingleton<CollectionData>(() => CollectionData());
+  }
+}