feat(wip): Update entities and adopt a proper repository workflow for trip "obtention"

2025-12-29 00:23:10 +01:00
parent 239b63ca81
commit 81ed2fd8c3
34 changed files with 1929 additions and 1925 deletions
--- a/frontend/lib/data/datasources/trip_remote_datasource.dart
+++ b/frontend/lib/data/datasources/trip_remote_datasource.dart
@@ -0,0 +1,142 @@
+import 'dart:convert';
+import 'dart:developer';
+
+import 'package:dio/dio.dart';
+
+abstract class TripRemoteDataSource {
+  /// Fetch available landmarks for the provided preferences/start payload.
+  Future<List<Map<String, dynamic>>> fetchLandmarks(Map<String, dynamic> body);
+
+  /// Create a new trip using the optimizer payload (that includes landmarks).
+  Future<Map<String, dynamic>> createTrip(Map<String, dynamic> body);
+
+  /// Fetch an existing trip by UUID
+  Future<Map<String, dynamic>> fetchTrip(String uuid);
+}
+
+class TripRemoteDataSourceImpl implements TripRemoteDataSource {
+  final Dio dio;
+
+  TripRemoteDataSourceImpl({required this.dio});
+
+  @override
+  Future<List<Map<String, dynamic>>> fetchLandmarks(Map<String, dynamic> body) async {
+    final response = await dio.post('/get/landmarks', data: body);
+    if (response.statusCode != 200) {
+      throw Exception('Server error fetching landmarks: ${response.statusCode}');
+    }
+
+    if (response.data is! List) {
+      throw Exception('Unexpected landmarks response format');
+    }
+
+    return _normalizeLandmarks(List<dynamic>.from(response.data as List));
+  }
+
+  @override
+  Future<Map<String, dynamic>> createTrip(Map<String, dynamic> body) async {
+    log('Creating trip with body: $body');
+    // convert body to actual json
+    String bodyJson = jsonEncode(body);
+    log('Trip request JSON: $bodyJson');
+    final response = await dio.post('/optimize/trip', data: body);
+    if (response.statusCode != 200) {
+      throw Exception('Server error: ${response.statusCode}');
+    }
+
+    if (response.data is! Map<String, dynamic>) {
+      throw Exception('Unexpected response format');
+    }
+
+    final Map<String, dynamic> json = Map<String, dynamic>.from(response.data as Map);
+
+    _ensureLandmarks(json);
+    if (json.containsKey('landmarks') && json['landmarks'] is List) {
+      return json;
+    }
+
+    final String? firstUuid = json['first_landmark_uuid'] as String?;
+    if (firstUuid == null) {
+      return json;
+    }
+
+    final List<Map<String, dynamic>> landmarks = [];
+    String? next = firstUuid;
+    while (next != null) {
+      final lm = await _fetchLandmarkByUuid(next);
+      landmarks.add(lm);
+      final dynamic nxt = lm['next_uuid'];
+      next = (nxt is String) ? nxt : null;
+    }
+
+    json['landmarks'] = landmarks;
+    return json;
+  }
+
+  @override
+  Future<Map<String, dynamic>> fetchTrip(String uuid) async {
+    final response = await dio.get('/trip/$uuid');
+    if (response.statusCode != 200) {
+      throw Exception('Server error: ${response.statusCode}');
+    }
+    if (response.data is! Map<String, dynamic>) {
+      throw Exception('Unexpected response format');
+    }
+
+    final Map<String, dynamic> json = Map<String, dynamic>.from(response.data as Map);
+    // Normalize same as createTrip: if trip contains first_landmark_uuid, expand chain
+    if (json.containsKey('landmarks') && json['landmarks'] is List) {
+      _ensureLandmarks(json);
+      return json;
+    }
+
+    final String? firstUuid = json['first_landmark_uuid'] as String?;
+    if (firstUuid == null) return json;
+
+    final List<Map<String, dynamic>> landmarks = [];
+    String? next = firstUuid;
+    while (next != null) {
+      final lm = await _fetchLandmarkByUuid(next);
+      landmarks.add(lm);
+      final dynamic nxt = lm['next_uuid'];
+      next = (nxt is String) ? nxt : null;
+    }
+
+    json['landmarks'] = landmarks;
+    return json;
+  }
+
+  // Fetch a single landmark by uuid via the /landmark/{landmark_uuid} endpoint
+  Future<Map<String, dynamic>> _fetchLandmarkByUuid(String uuid) async {
+    final response = await dio.get('/landmark/$uuid');
+    if (response.statusCode != 200) {
+      throw Exception('Failed to fetch landmark $uuid: ${response.statusCode}');
+    }
+    if (response.data is! Map<String, dynamic>) {
+      throw Exception('Unexpected landmark response format');
+    }
+    return _normalizeLandmark(Map<String, dynamic>.from(response.data as Map));
+  }
+
+  static void _ensureLandmarks(Map<String, dynamic> json) {
+    final raw = json['landmarks'];
+    if (raw is List) {
+      json['landmarks'] = _normalizeLandmarks(raw);
+    }
+  }
+
+  static List<Map<String, dynamic>> _normalizeLandmarks(List<dynamic> rawList) {
+    return rawList
+        .map((item) => _normalizeLandmark(Map<String, dynamic>.from(item as Map)))
+        .toList();
+  }
+
+  static Map<String, dynamic> _normalizeLandmark(Map<String, dynamic> source) {
+    final normalized = Map<String, dynamic>.from(source);
+    final typeValue = normalized['type'];
+    if (typeValue is String) {
+      normalized['type'] = {'type': typeValue};
+    }
+    return normalized;
+  }
+}