fix : twice back press for exit application on live stock

packages/livestock/lib/presentation/page/root/view.dart

@@ -1,40 +1,41 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:rasadyar_core/core.dart';
 
 import 'logic.dart';
 
 class RootPage extends GetView<RootLogic> {
-  const RootPage({super.key});
+  RootPage({super.key});
+
+  DateTime? _lastBackPressed;
 
   @override
   Widget build(BuildContext context) {
     return ObxValue((currentIndex) {
       return PopScope(
         canPop: false,
-        onPopInvokedWithResult: (didPop, result) {
-          final navigatorKey = Get.nestedKey(currentIndex);
-          eLog('Pop invoked with result: $result, didPop: $didPop');
-          navigatorKey?.currentState?.pop();
+        onPopInvokedWithResult: (didPop, result) async {
+          final nestedKey = Get.nestedKey(controller.currentIndex.value);
+          final currentNavigator = nestedKey?.currentState;
 
-          /*eLog('Pop invoked with result: $result, didPop: $didPop');
-          iLog(Get.currentRoute);
-          iLog(Get.previousRoute);
-
-          final navigatorKey = Get.nestedKey(currentIndex);
-
-          if (currentIndex.value == 0 &&
-
-              navigatorKey != null &&
-              navigatorKey.currentState != null) {
-            if (navigatorKey.currentState!.canPop()) {
-              navigatorKey.currentState!.pop();
-              return;
+          if (currentNavigator?.canPop() ?? false) {
+            currentNavigator?.pop();
+          } else {
+            final now = DateTime.now();
+            if (_lastBackPressed == null ||
+                now.difference(_lastBackPressed!) > Duration(seconds: 2)) {
+              _lastBackPressed = now;
+              Get.snackbar(
+                'خروج از برنامه',
+                'برای خروج دوباره بازگشت را بزنید',
+                snackPosition: SnackPosition.TOP,
+                duration: Duration(seconds: 2),
+                backgroundColor: AppColor.warning,
+              );
+            } else {
+              await SystemNavigator.pop();
             }
-
-            if (!didPop) {
-              return;
-            }
-          }*/
+          }
         },
 
         child: Scaffold(