Compass app (#2446)

compass_app/app/lib/data/repositories/itinerary_config/itinerary_config_repository.dart

@@ -0,0 +1,17 @@
+// Copyright 2024 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import '../../../domain/models/itinerary_config/itinerary_config.dart';
+import '../../../utils/result.dart';
+
+/// Data source for the current [ItineraryConfig]
+abstract class ItineraryConfigRepository {
+  /// Get current [ItineraryConfig], may be empty if no configuration started.
+  /// Method is async to support writing to database, file, etc.
+  Future<Result<ItineraryConfig>> getItineraryConfig();
+
+  /// Sets [ItineraryConfig], overrides the previous one stored.
+  /// Returns Result.Ok if set is successful.
+  Future<Result<void>> setItineraryConfig(ItineraryConfig itineraryConfig);
+}

compass_app/app/lib/data/repositories/itinerary_config/itinerary_config_repository_memory.dart

@@ -0,0 +1,27 @@
+// Copyright 2024 The Flutter team. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+
+import '../../../domain/models/itinerary_config/itinerary_config.dart';
+import '../../../utils/result.dart';
+import 'itinerary_config_repository.dart';
+
+/// In-memory implementation of [ItineraryConfigRepository].
+class ItineraryConfigRepositoryMemory implements ItineraryConfigRepository {
+  ItineraryConfig? _itineraryConfig;
+
+  @override
+  Future<Result<ItineraryConfig>> getItineraryConfig() async {
+    return Result.ok(_itineraryConfig ?? const ItineraryConfig());
+  }
+
+  @override
+  Future<Result<bool>> setItineraryConfig(
+    ItineraryConfig itineraryConfig,
+  ) async {
+    _itineraryConfig = itineraryConfig;
+    return Result.ok(true);
+  }
+}