Fix scan bug

lib/providers/packages.dart

@@ -3,7 +3,9 @@ import 'dart:convert';
 import 'package:cssd/models/item_model.dart';
 import 'package:cssd/models/package_model.dart';
 import 'package:flutter_downloader/flutter_downloader.dart';
+import 'package:fluttertoast/fluttertoast.dart';
 import 'package:path_provider/path_provider.dart';
+import 'package:cssd/utils/scan.dart';
 
 import '../config/urls.dart';
 import '../config/user.dart';
@@ -78,16 +80,55 @@ class PackageProvider extends ChangeNotifier {
     }
   }
 
+  var isCurrectItem = false;
+
   changeItemValByScan(String value, int index) async {
     filteredItems?.forEach((item) {
       if (item.id == value) {
         itemValues[index].text = "${item.name} - ${item.udi}";
+        isCurrectItem = true;
       }
       print("item value : ${itemValues[index].text}");
     });
     notifyListeners();
   }
 
+  void scanItem(isEnabled, context, index) async {
+    await scan().then(
+      (String result) async {
+        if (result == 'cancel') {
+          if (index != 0) await removeItemVal();
+          print('cancel');
+        } else if (result == 'error') {
+          print('error');
+        } else if (result == 'access') {
+          print('access');
+        } else {
+          await changeItemValByScan(result, index);
+          isEnabled = false;
+          print("currect item : ${isCurrectItem}");
+          if (isCurrectItem) {
+            Fluttertoast.showToast(
+              msg: "Item added.",
+              toastLength: Toast.LENGTH_SHORT,
+              gravity: ToastGravity.BOTTOM,
+            );
+            scanItem(isEnabled, context, index += 1);
+            await addItemVal();
+            isCurrectItem = false;
+          } else {
+            Fluttertoast.showToast(
+              msg: "No item exists,try again!",
+              toastLength: Toast.LENGTH_SHORT,
+              gravity: ToastGravity.BOTTOM,
+            );
+            scanItem(isEnabled, context, index);
+          }
+        }
+      },
+    );
+  }
+
   String searchBoxValue = '';
   bool filterOn = false;
   List<PackageResultObject>? items;