Complete refactoring SFM App Source Code

lib/product/cache/local_manager.dart

@@ -0,0 +1,42 @@
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../constant/enums/local_keys_enums.dart';
+
+class LocaleManager {
+  LocaleManager._init() {
+    SharedPreferences.getInstance().then((value) {
+      _preferences = value;
+    });
+  }
+  static final LocaleManager _instance = LocaleManager._init();
+
+  SharedPreferences? _preferences;
+
+  static LocaleManager get instance => _instance;
+
+  static Future prefrencesInit() async {
+    instance._preferences ??= await SharedPreferences.getInstance();
+  }
+
+  void setString(PreferencesKeys key, String value) async {
+    await _preferences?.setString(key.toString(), value);
+  }
+
+  void setInt(PreferencesKeys key, int value) async {
+    await _preferences?.setInt(key.toString(), value);
+  }
+
+  Future<void> setStringValue(PreferencesKeys key, String value) async {
+    await _preferences!.setString(key.toString(), value);
+  }
+
+  String getStringValue(PreferencesKeys key) =>
+      _preferences?.getString(key.toString()) ?? '';
+  
+  int getIntValue(PreferencesKeys key) =>
+      _preferences?.getInt(key.toString()) ?? 0;
+
+  Future<void> deleteStringValue(PreferencesKeys key) async {
+    await _preferences!.remove(key.toString());
+  }
+}