Frontend first draft

frontend/pshared/lib/service/device_id.dart

@@ -0,0 +1,24 @@
+import 'package:uuid/uuid.dart';
+
+import 'package:logging/logging.dart';
+
+import 'package:pshared/config/web.dart';
+import 'package:pshared/service/secure_storage.dart';
+
+
+class DeviceIdManager {
+  static final _logger = Logger('service.device_id');
+
+  static final String _key = Constants.deviceIdStorageKey;
+  static Future<String> getDeviceId() async {
+    String? deviceId = await SecureStorageService.get(_key);
+
+    if (deviceId == null) {
+      _logger.fine('Device id is not set, generating new');
+      deviceId = (const Uuid()).v4(); 
+      await SecureStorageService.set(_key, deviceId);
+    }
+
+    return deviceId;
+  }
+}