add fcs shipment in processing,update cargo types for carton

lib/pages/carton/packages_widget.dart

@@ -9,6 +9,7 @@ import '../../domain/entities/package.dart';
 import '../../domain/entities/user.dart';
 import '../main/util.dart';
 import '../widgets/continue_button.dart';
+import '../widgets/local_text.dart';
 import '../widgets/local_title.dart';
 import '../widgets/previous_button.dart';
 import 'model/package_selection_model.dart';
@@ -41,6 +42,7 @@ class _PackagesWidgetState extends State<PackagesWidget> {
   final _scrollController = ScrollController();
   bool _down = true;
   List<Package> _packages = [];
+  bool _isLoading = false;
 
   @override
   void initState() {
@@ -56,12 +58,14 @@ class _PackagesWidgetState extends State<PackagesWidget> {
 
   _init() async {
     _packages.clear();
+    _isLoading = true;
     var packageModel = context.read<PackageSelectionModel>();
     var list = await packageModel.getActivePackages(
         shipmentId: widget.shipment.id!,
         senderId: widget.sender.id!,
         consigneeId: widget.consignee.id!);
     _packages = List.from(list);
+    _isLoading = false;
     if (mounted) {
       setState(() {});
     }
@@ -93,6 +97,10 @@ class _PackagesWidgetState extends State<PackagesWidget> {
 
     final continueBtn = ContinueButton(
       onTap: () {
+        if (_packages.isEmpty) {
+          showMsgDialog(context, 'Error', "Please add the packages");
+          return false;
+        }
         if (widget.onContinue != null) {
           widget.onContinue!(_packages);
         }
@@ -135,21 +143,25 @@ class _PackagesWidgetState extends State<PackagesWidget> {
                       : const SizedBox(),
                 ),
                 Expanded(
-                  child: RefreshIndicator(
-                      color: primaryColor,
-                      onRefresh: () async {
-                        _init();
-                      },
-                      child: ListView.builder(
-                          padding: const EdgeInsets.only(top: 10),
-                          controller: _scrollController,
-                          shrinkWrap: true,
-                          physics: const AlwaysScrollableScrollPhysics(),
-                          itemBuilder: (context, index) {
-                            Package package = _packages[index];
-                            return packageRow(context, package);
+                  child: _packages.isEmpty && !_isLoading
+                      ? Center(
+                          child: LocalText(context, 'box.no_package',
+                              color: Colors.black, fontSize: 15))
+                      : RefreshIndicator(
+                          color: primaryColor,
+                          onRefresh: () async {
+                            _init();
                           },
-                          itemCount: _packages.length)),
+                          child: ListView.builder(
+                              padding: const EdgeInsets.only(top: 10),
+                              controller: _scrollController,
+                              shrinkWrap: true,
+                              physics: const AlwaysScrollableScrollPhysics(),
+                              itemBuilder: (context, index) {
+                                Package package = _packages[index];
+                                return packageRow(context, package);
+                              },
+                              itemCount: _packages.length)),
                 ),
               ],
             ),