load a fake list of destinations

compass_app/app/lib/common/config/dependencies.dart

@@ -1,5 +1,6 @@
 import 'package:compass_app/features/results/business/usecases/search_destination_usecase.dart';
 import 'package:compass_app/features/results/data/destination_repository.dart';
+import 'package:compass_app/features/results/data/destination_repository_local.dart';
 import 'package:compass_app/features/results/presentation/results_viewmodel.dart';
 import 'package:provider/provider.dart';
 import 'package:provider/single_child_widget.dart';
@@ -7,7 +8,8 @@ import 'package:provider/single_child_widget.dart';
 // Configure dependencies
 List<SingleChildWidget> get providers {
   // These dependencies don't need to be in the widget tree (yet?)
-  final destinationRepository = DestinationRepository();
+  final destinationRepository = DestinationRepositoryLocal();
+  // Configure usecase to use the local data repository implementation
   final searchDestinationUsecase = SearchDestinationUsecase(
     repository: destinationRepository,
   );

compass_app/app/lib/features/results/business/model/destination.dart

@@ -34,4 +34,16 @@ class Destination {
   String toString() {
     return 'Destination{ref: $ref, name: $name, country: $country, continent: $continent, knownFor: $knownFor, tags: $tags, imageUrl: $imageUrl}';
   }
+
+  factory Destination.fromJson(Map<String, dynamic> json) {
+    return Destination(
+      ref: json['ref'] as String,
+      name: json['name'] as String,
+      country: json['country'] as String,
+      continent: json['continent'] as String,
+      knownFor: json['knownFor'] as String,
+      tags: (json['tags'] as List<dynamic>).map((e) => e as String).toList(),
+      imageUrl: json['imageUrl'] as String,
+    );
+  }
 }

compass_app/app/lib/features/results/data/destination_repository.dart

@@ -3,14 +3,7 @@ import 'package:compass_app/features/results/business/model/destination.dart';
 import 'package:flutter/material.dart';
 
 /// Data source with all possible destinations
-class DestinationRepository {
+abstract class DestinationRepository {
   /// Get complete list of destinations
-  Future<Result<List<Destination>>> getDestinations() {
-    // TODO: Load some data
-    return Future.delayed(
-      // Simulate loading from network
-      const Duration(milliseconds: 1000),
-      () => Result.ok([]),
-    );
-  }
+  Future<Result<List<Destination>>> getDestinations();
 }

compass_app/app/lib/features/results/data/destination_repository_local.dart

@@ -0,0 +1,34 @@
+import 'dart:convert';
+
+import 'package:compass_app/common/utils/result.dart';
+import 'package:compass_app/features/results/business/model/destination.dart';
+import 'package:compass_app/features/results/data/destination_repository.dart';
+
+import 'package:flutter/services.dart' show rootBundle;
+
+/// Local implementation of DestinationRepository
+/// Uses data from assets folder
+class DestinationRepositoryLocal implements DestinationRepository {
+  @override
+  Future<Result<List<Destination>>> getDestinations() async {
+    try {
+      final localData = await _loadAsset();
+      final list = _parse(localData);
+      return Result.ok(list);
+    } on Exception catch (error) {
+      return Result.error(error);
+    }
+  }
+
+  Future<String> _loadAsset() async {
+    return await rootBundle.loadString('assets/destinations.json');
+  }
+
+  List<Destination> _parse(String localData) {
+    final parsed = (jsonDecode(localData) as List).cast<Map<String, dynamic>>();
+
+    return parsed
+        .map<Destination>((json) => Destination.fromJson(json))
+        .toList();
+  }
+}

compass_app/app/lib/features/results/presentation/result_card.dart

@@ -0,0 +1,10 @@
+import 'package:flutter/material.dart';
+
+class ResultCard extends StatelessWidget {
+  const ResultCard({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const Placeholder();
+  }
+}

compass_app/app/pubspec.yaml

@@ -19,3 +19,5 @@ dev_dependencies:
 
 flutter:
   uses-material-design: true
+  assets:
+    - assets/destinations.json

compass_app/app/test/features/results/data/destination_repository_local_test.dart

@@ -0,0 +1,27 @@
+
+import 'package:compass_app/common/utils/result.dart';
+import 'package:compass_app/features/results/data/destination_repository_local.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('DestinationRepositoryLocal tests', () {
+    // To load assets
+    TestWidgetsFlutterBinding.ensureInitialized();
+
+    final repository = DestinationRepositoryLocal();
+
+    test('should load and parse', () async {
+      // Should load the json and parse it
+      final result = await repository.getDestinations();
+      expect(result, isA<Ok>());
+
+      // Check that the list is complete
+      final list = result.asOk.value;
+      expect(list.length, 137);
+
+      // Check first item
+      final destination = list.first;
+      expect(destination.name, 'Alaska');
+    });
+  });
+}