support new fields in adding

lib/services/data_service/data_service_trips.dart

@@ -4,16 +4,25 @@ extension DataServiceTrips on DataService {
   Future<void> fetchTripDetails() async {
     _isTripDetailsLoading = true;
     try {
-      final json = await api.get('/trips/legs-and-stats');
-      if (json is List) {
-        final tripMap = json.map((e) => TripDetail.fromJson(e)).toList();
-        _tripDetails = [...tripMap]..sort((a, b) => b.id.compareTo(a.id));
-      } else {
-        _tripDetails = [];
-      }
+      final json = await api.get('/trips/info');
+      final tripDetails = _parseTripInfoList(json);
+      _tripDetails = [...tripDetails]..sort((a, b) => b.id.compareTo(a.id));
+      _tripList = tripDetails
+          .map(
+            (detail) => TripSummary(
+              tripId: detail.id,
+              tripName: detail.name,
+              tripMileage: detail.mileage,
+              legCount: detail.legCount,
+              locoStats: detail.locoStats,
+            ),
+          )
+          .toList()
+        ..sort((a, b) => b.tripId.compareTo(a.tripId));
     } catch (e) {
       debugPrint('Failed to fetch trip_map: $e');
       _tripDetails = [];
+      _tripList = [];
     } finally {
       _isTripDetailsLoading = false;
       _notifyAsync();
@@ -23,48 +32,17 @@ extension DataServiceTrips on DataService {
   Future<List<TripLocoStat>> fetchTripLocoStats(int tripId) async {
     try {
       final json = await api.get('/trips/stats/$tripId');
-      return _parseTripLocoStats(json);
+      return TripLocoStat.listFromJson(json);
     } catch (e) {
       debugPrint('Failed to fetch trip loco stats: $e');
       return [];
     }
   }
 
-  List<TripLocoStat> _parseTripLocoStats(dynamic json) {
-    List<dynamic>? list;
-    if (json is List) {
-      list = json.expand((e) => e is List ? e : [e]).toList();
-    } else if (json is Map) {
-      for (final key in ['locos', 'stats', 'data', 'trip_locos']) {
-        final candidate = json[key];
-        if (candidate is List) {
-          list = candidate.expand((e) => e is List ? e : [e]).toList();
-          break;
-        }
-      }
-    }
-    if (list == null) return [];
-    return list
-        .whereType<Map<String, dynamic>>()
-        .map((e) => TripLocoStat.fromJson(e))
-        .toList();
-  }
-
   Future<void> fetchTrips() async {
     try {
-      final json = await api.get('/trips/mileage');
-      Iterable<dynamic>? raw;
-      if (json is List) {
-        raw = json;
-      } else if (json is Map) {
-        for (final key in ['trips', 'trip_data', 'data']) {
-          final value = json[key];
-          if (value is List) {
-            raw = value;
-            break;
-          }
-        }
-      }
+      final json = await api.get('/trips/info');
+      final raw = _extractTrips(json);
       if (raw != null) {
         final tripMap = raw
             .whereType<Map<String, dynamic>>()
@@ -119,8 +97,9 @@ extension DataServiceTrips on DataService {
   }
 
   void upsertTripSummary(TripSummary trip) {
-    final existingIndex =
-        _tripList.indexWhere((element) => element.tripId == trip.tripId);
+    final existingIndex = _tripList.indexWhere(
+      (element) => element.tripId == trip.tripId,
+    );
     if (existingIndex >= 0) {
       _tripList[existingIndex] = trip;
     } else {
@@ -129,4 +108,24 @@ extension DataServiceTrips on DataService {
     _tripList.sort((a, b) => b.tripId.compareTo(a.tripId));
     _notifyAsync();
   }
+
+  Iterable<dynamic>? _extractTrips(dynamic json) {
+    if (json is List) return json;
+    if (json is Map) {
+      for (final key in ['trips', 'trip_data', 'data', 'trip_info']) {
+        final value = json[key];
+        if (value is List) return value;
+      }
+    }
+    return null;
+  }
+
+  List<TripDetail> _parseTripInfoList(dynamic json) {
+    final raw = _extractTrips(json);
+    if (raw == null) return const [];
+    return raw
+        .whereType<Map<String, dynamic>>()
+        .map((e) => TripDetail.fromJson(e))
+        .toList();
+  }
 }