Initial commit

lib/features/login/bloc/local_authentication_cubit.dart

@@ -0,0 +1,24 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:flutter_paperless_mobile/core/model/error_message.dart';
+import 'package:flutter_paperless_mobile/di_initializer.dart';
+import 'package:local_auth/local_auth.dart';
+
+class LocalAuthenticationCubit extends Cubit<LocalAuthenticationState> {
+  LocalAuthenticationCubit() : super(LocalAuthenticationState(false));
+
+  Future<void> authorize(String localizedMessage) async {
+    final isAuthenticationSuccessful = await getIt<LocalAuthentication>()
+        .authenticate(localizedReason: localizedMessage);
+    if (isAuthenticationSuccessful) {
+      emit(LocalAuthenticationState(true));
+    } else {
+      throw const ErrorMessage(ErrorCode.biometricAuthenticationFailed);
+    }
+  }
+}
+
+class LocalAuthenticationState {
+  final bool isAuthorized;
+
+  LocalAuthenticationState(this.isAuthorized);
+}