badge percentage support

lib/services/data_service/data_service_badges.dart

@@ -1,10 +1,18 @@
 part of 'data_service.dart';
 
 extension DataServiceBadges on DataService {
-  Future<void> fetchBadgeAwards() async {
+  Future<void> fetchBadgeAwards({
+    int offset = 0,
+    int limit = 50,
+    bool append = false,
+    String badgeCode = 'class_clearance',
+  }) async {
     _isBadgeAwardsLoading = true;
+    if (!append) _badgeAwards = [];
     try {
-      final json = await api.get('/badge/awards/me');
+      final json = await api.get(
+        '/badge/awards/me?limit=$limit&offset=$offset&badge_code=$badgeCode',
+      );
       List<dynamic>? list;
       if (json is List) {
         list = json;
@@ -21,22 +29,102 @@ extension DataServiceBadges on DataService {
           ?.whereType<Map<String, dynamic>>()
           .map(BadgeAward.fromJson)
           .toList();
-      if (parsed != null) {
-        parsed.sort((a, b) {
-          final aTs = a.awardedAt?.millisecondsSinceEpoch ?? 0;
-          final bTs = b.awardedAt?.millisecondsSinceEpoch ?? 0;
-          return bTs.compareTo(aTs);
-        });
-        _badgeAwards = parsed;
-      } else {
-        _badgeAwards = [];
-      }
+      final items = parsed ?? [];
+      _badgeAwards =
+          append ? [..._badgeAwards, ...items] : items;
+      _badgeAwards.sort((a, b) {
+        final aTs = a.awardedAt?.millisecondsSinceEpoch ?? 0;
+        final bTs = b.awardedAt?.millisecondsSinceEpoch ?? 0;
+        return bTs.compareTo(aTs);
+      });
+      _badgeAwardsHasMore = items.length >= limit;
     } catch (e) {
       debugPrint('Failed to fetch badge awards: $e');
-      _badgeAwards = [];
+      if (!append) _badgeAwards = [];
+      _badgeAwardsHasMore = false;
     } finally {
       _isBadgeAwardsLoading = false;
       _notifyAsync();
     }
   }
+
+  Future<void> fetchClassClearanceProgress({
+    int offset = 0,
+    int limit = 20,
+    bool append = false,
+  }) async {
+    _isClassClearanceProgressLoading = true;
+    if (!append) _classClearanceProgress = [];
+    try {
+      final json =
+          await api.get('/badge/completion/class?limit=$limit&offset=$offset');
+      List<dynamic>? list;
+      if (json is List) {
+        list = json;
+      } else if (json is Map) {
+        for (final key in ['progress', 'data', 'items', 'classes']) {
+          final value = json[key];
+          if (value is List) {
+            list = value;
+            break;
+          }
+        }
+      }
+      final parsed = list
+          ?.whereType<Map<String, dynamic>>()
+          .map(ClassClearanceProgress.fromJson)
+          .toList();
+      final items = parsed ?? [];
+      _classClearanceProgress =
+          append ? [..._classClearanceProgress, ...items] : items;
+      _classClearanceHasMore = items.length >= limit;
+    } catch (e) {
+      debugPrint('Failed to fetch class clearance progress: $e');
+      if (!append) _classClearanceProgress = [];
+      _classClearanceHasMore = false;
+    } finally {
+      _isClassClearanceProgressLoading = false;
+      _notifyAsync();
+    }
+  }
+
+  Future<void> fetchLocoClearanceProgress({
+    int offset = 0,
+    int limit = 20,
+    bool append = false,
+  }) async {
+    _isLocoClearanceProgressLoading = true;
+    if (!append) _locoClearanceProgress = [];
+    try {
+      final json =
+          await api.get('/badge/completion/loco?limit=$limit&offset=$offset');
+      List<dynamic>? list;
+      if (json is List) {
+        list = json;
+      } else if (json is Map) {
+        for (final key in ['progress', 'data', 'items', 'locos']) {
+          final value = json[key];
+          if (value is List) {
+            list = value;
+            break;
+          }
+        }
+      }
+      final parsed = list
+          ?.whereType<Map<String, dynamic>>()
+          .map(LocoClearanceProgress.fromJson)
+          .toList();
+      final items = parsed ?? [];
+      _locoClearanceProgress =
+          append ? [..._locoClearanceProgress, ...items] : items;
+      _locoClearanceHasMore = items.length >= limit;
+    } catch (e) {
+      debugPrint('Failed to fetch loco clearance progress: $e');
+      if (!append) _locoClearanceProgress = [];
+      _locoClearanceHasMore = false;
+    } finally {
+      _isLocoClearanceProgressLoading = false;
+      _notifyAsync();
+    }
+  }
 }