update package and carton selection

lib/pages/carton/carton_editor.dart

@@ -13,10 +13,12 @@ import 'package:fcs/pages/widgets/progress.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_vector_icons/flutter_vector_icons.dart';
+import 'package:provider/provider.dart';
 import '../main/util.dart';
 import 'carton_package_form.dart';
 import 'carton_info.dart';
 import 'mix_carton/mix_carton_form.dart';
+import 'model/package_selection_model.dart';
 import 'widget/carton_row.dart';
 
 class CartonEditor extends StatefulWidget {
@@ -38,6 +40,7 @@ class _CartonEditorState extends State<CartonEditor> {
   User? _consignee;
   User? _sender;
   Carton? _carton;
+  bool _hasPackages = true;
 
   @override
   void initState() {
@@ -140,6 +143,12 @@ class _CartonEditorState extends State<CartonEditor> {
                   return;
                 }
 
+                if (!_hasPackages) {
+                  showMsgDialog(
+                      context, "Error", "No packages in sender and consignee");
+                  return;
+                }
+
                 Navigator.push(
                     context,
                     CupertinoPageRoute(
@@ -170,10 +179,12 @@ class _CartonEditorState extends State<CartonEditor> {
         )),
         IconButton(
             icon: Icon(Icons.search, color: Colors.black),
-            onPressed: () => searchUser(context, onUserSelect: (u) {
+            onPressed: () => searchUser(context, onUserSelect: (u) async {
                   setState(() {
                     this._consignee = u;
                   });
+
+                  _checkPackages();
                 }, popPage: true)),
       ],
     );
@@ -197,11 +208,12 @@ class _CartonEditorState extends State<CartonEditor> {
 
     final consigneeBox = Container(
       child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           consigneeSearchBox,
           consigneefcsIDBox,
           consigneePhoneBox,
-          consigneeNameBox
+          consigneeNameBox,
         ],
       ),
     );
@@ -216,10 +228,12 @@ class _CartonEditorState extends State<CartonEditor> {
         )),
         IconButton(
             icon: Icon(Icons.search, color: Colors.black),
-            onPressed: () => searchUser(context, onUserSelect: (u) {
+            onPressed: () => searchUser(context, onUserSelect: (u) async {
                   setState(() {
                     this._sender = u;
                   });
+
+                  _checkPackages();
                 }, popPage: true)),
       ],
     );
@@ -243,6 +257,7 @@ class _CartonEditorState extends State<CartonEditor> {
 
     final senderBox = Container(
       child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           senderSearchBox,
           senderIDBox,
@@ -268,14 +283,24 @@ class _CartonEditorState extends State<CartonEditor> {
             cartonTypeBox,
             isFromPackages
                 ? Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
                     children: [
                       LocalTitle(textKey: "box.select.sender_and_consignee"),
                       Row(
+                        crossAxisAlignment: CrossAxisAlignment.start,
                         children: [
                           Flexible(child: senderBox),
                           Flexible(child: consigneeBox)
                         ],
                       ),
+                      !_hasPackages
+                          ? Padding(
+                              padding: const EdgeInsets.only(top: 5),
+                              child: Text("No packages in sender and consignee",
+                                  style: TextStyle(
+                                      color: dangerColor, fontSize: 13)),
+                            )
+                          : const SizedBox()
                     ],
                   )
                 : Container(),
@@ -290,6 +315,18 @@ class _CartonEditorState extends State<CartonEditor> {
     );
   }
 
+  _checkPackages() async {
+    if (_sender != null && _consignee != null) {
+      var p = await context
+          .read<PackageSelectionModel>()
+          .getPackagesBySenderAndConsigneeId(
+              senderId: _sender!.id ?? "", consigneeId: _consignee!.id ?? "");
+      setState(() {
+        _hasPackages = p.isNotEmpty;
+      });
+    }
+  }
+
   List<Widget> _getCartons(BuildContext context, List<Carton> cartons) {
     return cartons.map((c) {
       return InkWell(