brand theme, allot of features, allot of bug fixes

lib/models/delivery.dart

@@ -36,6 +36,39 @@ class Delivery implements Serializable {
     required this.name,
   });
 
+  // Special warehouse ID constant
+  static const int warehouseDeliveryId = -1;
+
+  // Check if this is the warehouse delivery
+  bool get isWarehouseDelivery => id == warehouseDeliveryId;
+
+  // Create a static warehouse delivery item
+  static Delivery createWarehouseDelivery() {
+    return Delivery(
+      id: warehouseDeliveryId,
+      routeFragmentId: -1,
+      deliveryIndex: 999,
+      orders: const [],
+      deliveryAddress: const DeliveryAddress(
+        id: -1,
+        line1: '3550 Rue de Cherbourg Suite 108',
+        line2: '',
+        postalCode: 'G8Y 6S6',
+        city: 'Trois-Rivières',
+        subdivision: 'QC',
+        countryCode: 'CA',
+        latitude: 46.3384605,
+        longitude: -72.6080797,
+        formattedAddress: '3550 Rue de Cherbourg Suite 108, Trois-Rivières, QC G8Y 6S6',
+      ),
+      createdAt: DateTime.now().toIso8601String(),
+      delivered: false,
+      hasBeenSkipped: false,
+      isSkipped: false,
+      name: 'Return to Warehouse',
+    );
+  }
+
   factory Delivery.fromJson(Map<String, dynamic> json) {
     return Delivery(
       id: json['id'] as int,

lib/models/delivery_address.dart

@@ -2,41 +2,41 @@ import '../api/types.dart';
 
 class DeliveryAddress implements Serializable {
   final int id;
-  final String line1;
-  final String line2;
-  final String postalCode;
-  final String city;
-  final String subdivision;
-  final String countryCode;
+  final String? line1;
+  final String? line2;
+  final String? postalCode;
+  final String? city;
+  final String? subdivision;
+  final String? countryCode;
   final double? latitude;
   final double? longitude;
-  final String formattedAddress;
+  final String? formattedAddress;
 
   const DeliveryAddress({
     required this.id,
-    required this.line1,
-    required this.line2,
-    required this.postalCode,
-    required this.city,
-    required this.subdivision,
-    required this.countryCode,
+    this.line1,
+    this.line2,
+    this.postalCode,
+    this.city,
+    this.subdivision,
+    this.countryCode,
     this.latitude,
     this.longitude,
-    required this.formattedAddress,
+    this.formattedAddress,
   });
 
   factory DeliveryAddress.fromJson(Map<String, dynamic> json) {
     return DeliveryAddress(
       id: json['id'] as int,
-      line1: json['line1'] as String,
-      line2: json['line2'] as String,
-      postalCode: json['postalCode'] as String,
-      city: json['city'] as String,
-      subdivision: json['subdivision'] as String,
-      countryCode: json['countryCode'] as String,
+      line1: json['line1'] as String?,
+      line2: json['line2'] as String?,
+      postalCode: json['postalCode'] as String?,
+      city: json['city'] as String?,
+      subdivision: json['subdivision'] as String?,
+      countryCode: json['countryCode'] as String?,
       latitude: json['latitude'] as double?,
       longitude: json['longitude'] as double?,
-      formattedAddress: json['formattedAddress'] as String,
+      formattedAddress: json['formattedAddress'] as String?,
     );
   }