add android bundle release

lib/objects/objects.dart

@@ -66,6 +66,29 @@ DateTime _asDateTime(dynamic value, [DateTime? fallback]) {
   return parsed ?? (fallback ?? DateTime.fromMillisecondsSinceEpoch(0));
 }
 
+DateTime? _asNullableDateTime(dynamic value) {
+  if (value == null) return null;
+  if (value is DateTime) return value;
+  return DateTime.tryParse(value.toString());
+}
+
+int compareTripsByDateDesc(
+  DateTime? aDate,
+  DateTime? bDate,
+  int aId,
+  int bId,
+) {
+  if (aDate != null && bDate != null) {
+    final cmp = bDate.compareTo(aDate);
+    if (cmp != 0) return cmp;
+  } else if (aDate != null) {
+    return -1;
+  } else if (bDate != null) {
+    return 1;
+  }
+  return bId.compareTo(aId);
+}
+
 class DestinationObject {
   const DestinationObject(
     this.label,
@@ -443,7 +466,7 @@ class LocoSummary extends Loco {
        );
 
   factory LocoSummary.fromJson(Map<String, dynamic> json) => LocoSummary(
-    locoId: json['loco_id'] ?? json['id'] ?? 0,
+    locoId: _asInt(json['loco_id'] ?? json['id']),
     locoType: json['type'] ?? json['loco_type'] ?? '',
     locoNumber: json['number'] ?? json['loco_number'] ?? '',
     locoName: json['name'] ?? json['loco_name'] ?? "",
@@ -722,9 +745,12 @@ class TripSummary {
   final double tripMileage;
   final int legCount;
   final List<TripLocoStat> locoStats;
+  final DateTime? startDate;
+  final DateTime? endDate;
 
   int get locoHadCount => locoStats.length;
   int get winnersCount => locoStats.where((e) => e.won).length;
+  DateTime? get primaryDate => endDate ?? startDate;
 
   TripSummary({
     required this.tripId,
@@ -732,20 +758,72 @@ class TripSummary {
     required this.tripMileage,
     this.legCount = 0,
     List<TripLocoStat>? locoStats,
+    this.startDate,
+    this.endDate,
   }) : locoStats = locoStats ?? const [];
 
-  factory TripSummary.fromJson(Map<String, dynamic> json) => TripSummary(
-    tripId: _asInt(json['trip_id']),
-    tripName: _asString(json['trip_name']),
-    tripMileage: _asDouble(json['trip_mileage']),
-    legCount: _asInt(
-      json['leg_count'],
-      (json['trip_legs'] as List?)?.length ?? 0,
-    ),
-    locoStats: TripLocoStat.listFromJson(
-      json['stats'] ?? json['trip_locos'] ?? json['locos'],
-    ),
-  );
+  static int compareByDateDesc(TripSummary a, TripSummary b) =>
+      compareTripsByDateDesc(a.primaryDate, b.primaryDate, a.tripId, b.tripId);
+
+  factory TripSummary.fromJson(Map<String, dynamic> json) {
+    DateTime? startDate;
+    DateTime? endDate;
+
+    DateTime? parseDate(dynamic value) => _asNullableDateTime(value);
+
+    for (final key in [
+      'trip_begin_time',
+      'trip_start',
+      'trip_start_time',
+      'trip_date',
+      'start_date',
+      'date',
+    ]) {
+      startDate ??= parseDate(json[key]);
+    }
+
+    for (final key in [
+      'trip_end_time',
+      'trip_finish_time',
+      'trip_end',
+      'end_date',
+    ]) {
+      endDate ??= parseDate(json[key]);
+    }
+
+    if (json['trip_legs'] is List) {
+      for (final leg in json['trip_legs'] as List) {
+        DateTime? begin;
+        if (leg is TripLeg) {
+          begin = leg.beginTime;
+        } else if (leg is Map) {
+          begin = parseDate(leg['leg_begin_time']);
+        }
+        if (begin == null) continue;
+        if (startDate == null || begin.isBefore(startDate)) {
+          startDate = begin;
+        }
+        if (endDate == null || begin.isAfter(endDate)) {
+          endDate = begin;
+        }
+      }
+    }
+
+    return TripSummary(
+      tripId: _asInt(json['trip_id']),
+      tripName: _asString(json['trip_name']),
+      tripMileage: _asDouble(json['trip_mileage']),
+      legCount: _asInt(
+        json['leg_count'],
+        (json['trip_legs'] as List?)?.length ?? 0,
+      ),
+      locoStats: TripLocoStat.listFromJson(
+        json['stats'] ?? json['trip_locos'] ?? json['locos'],
+      ),
+      startDate: startDate,
+      endDate: endDate,
+    );
+  }
 }
 
 class Leg {
@@ -941,6 +1019,34 @@ class TripDetail {
 
   int get locoHadCount => locoStats.length;
   int get winnersCount => locoStats.where((e) => e.won).length;
+  DateTime? get startDate {
+    DateTime? earliest;
+    for (final leg in legs) {
+      final begin = leg.beginTime;
+      if (begin == null) continue;
+      if (earliest == null || begin.isBefore(earliest)) {
+        earliest = begin;
+      }
+    }
+    return earliest;
+  }
+
+  DateTime? get endDate {
+    DateTime? latest;
+    for (final leg in legs) {
+      final begin = leg.beginTime;
+      if (begin == null) continue;
+      if (latest == null || begin.isAfter(latest)) {
+        latest = begin;
+      }
+    }
+    return latest;
+  }
+
+  DateTime? get primaryDate => endDate ?? startDate;
+
+  static int compareByDateDesc(TripDetail a, TripDetail b) =>
+      compareTripsByDateDesc(a.primaryDate, b.primaryDate, a.id, b.id);
 
   TripDetail({
     required this.id,