Added components to article

lib/model/article.dart

@@ -1,5 +1,7 @@
 import 'package:hl_lieferservice/dto/article.dart';
 
+import 'component.dart';
+
 class Article {
   Article({
     required this.name,
@@ -11,13 +13,21 @@ class Article {
     required this.scannable,
     required this.scannedAmount,
     required this.scannedRemovedAmount,
+    required this.isParent,
+    this.components = const [],
     this.scannedDate,
-    this.removeNoteId
+    this.removeNoteId,
+    this.warehouseNr,
+    this.warehouseName,
   });
 
   final String name;
   final String articleNumber;
   final int internalId;
+  final bool isParent;
+  final List<Component> components;
+  final String? warehouseNr;
+  final String? warehouseName;
 
   int amount;
   double price;
@@ -36,7 +46,35 @@ class Article {
     return price * scannedAmount * ((100 + tax) / 100);
   }
 
+  /// Whether this article is fully scanned.
+  ///
+  /// For parent articles (Stückliste): delegates to components — all must be
+  /// individually scanned.  For regular articles: the classic amount check.
+  bool get isFullyScanned {
+    if (isParent && components.isNotEmpty) {
+      return components.every((c) => c.isFullyScanned);
+    }
+    return scannedAmount + scannedRemovedAmount >= amount;
+  }
+
+  /// Find a component by its article number, or `null` if none matches.
+  Component? findComponent(String articleNumber) {
+    for (final c in components) {
+      if (c.articleNumber == articleNumber) return c;
+    }
+    return null;
+  }
+
+  /// Whether this article *or* any of its components carries [articleNumber].
+  bool hasArticleNumber(String articleNumber) {
+    if (this.articleNumber == articleNumber) return true;
+    return components.any((c) => c.articleNumber == articleNumber);
+  }
+
   bool unscanned() {
+    if (isParent && components.isNotEmpty) {
+      return components.every((c) => c.scannedAmount == 0);
+    }
     return scannedAmount == 0;
   }
 
@@ -58,6 +96,11 @@ class Article {
       price: double.parse(dto.price == "" ? "0.0" : dto.price),
       scannable: dto.scannable,
       tax: double.parse(dto.taxRate == "" ? "19" : dto.taxRate),
+      isParent: dto.isParent,
+      components: dto.components?.map(Component.fromDTO).toList() ?? [],
+      warehouseNr: dto.warehouseNr?.isEmpty ?? true ? null : dto.warehouseNr,
+      warehouseName:
+          dto.warehouseName?.isEmpty ?? true ? null : dto.warehouseName,
     );
   }
 }