fix back button nav

Frontend/lib/mih_components/mih_package_components/mih_package.dart

@@ -1,4 +1,8 @@
+import 'package:flutter/services.dart';
+import 'package:go_router/go_router.dart';
+import 'package:ken_logger/ken_logger.dart';
 import 'package:mzansi_innovation_hub/main.dart';
+import 'package:mzansi_innovation_hub/mih_components/mih_package_components/mih_scack_bar.dart';
 import 'package:mzansi_innovation_hub/mih_packages/mih_home/components/mih_app_drawer.dart';
 import 'package:mzansi_innovation_hub/mih_components/mih_package_components/mih_package_tools.dart';
 import 'package:flutter/material.dart';
@@ -31,6 +35,7 @@ class _MihPackageState extends State<MihPackage>
     with SingleTickerProviderStateMixin {
   late PageController _pageController;
   late AnimationController _animationController;
+  DateTime? lastPressedAt;
 
   void unfocusAll() {
     FocusScope.of(context).unfocus();
@@ -113,6 +118,32 @@ class _MihPackageState extends State<MihPackage>
     Size screenSize = MediaQuery.of(context).size;
     return GestureDetector(
       onTap: unfocusAll,
+      child: PopScope(
+        canPop: false,
+        onPopInvokedWithResult: (bool didPop, Object? result) {
+          if (GoRouterState.of(context).name == 'mihHome') {
+            if (lastPressedAt == null ||
+                DateTime.now().difference(lastPressedAt!) >
+                    const Duration(seconds: 2)) {
+              // First press: show a message and update the timestamp.
+              lastPressedAt = DateTime.now();
+              ScaffoldMessenger.of(context).showSnackBar(
+                MihSnackBar(
+                  child: Text("Press back again to exit"),
+                ),
+              );
+            } else {
+              // Second press within 2 seconds: exit the app.
+              KenLogger.warning('Exiting app...'); // Your custom logger
+              SystemChannels.platform.invokeMethod('SystemNavigator.pop');
+            }
+          } else {
+            context.goNamed(
+              'mihHome',
+              extra: true,
+            );
+          }
+        },
         child: Scaffold(
           drawer: widget.actionDrawer,
           body: SafeArea(
@@ -180,6 +211,7 @@ class _MihPackageState extends State<MihPackage>
             ),
           ),
         ),
+      ),
     );
   }
 }

Frontend/lib/mih_components/mih_package_components/mih_scack_bar.dart

@@ -0,0 +1,18 @@
+import 'package:flutter/material.dart';
+
+SnackBar MihSnackBar({
+  required Widget child,
+}) {
+  return SnackBar(
+    content: child,
+    shape: StadiumBorder(),
+    behavior: SnackBarBehavior.floating,
+    duration: Duration(seconds: 2),
+    width: null,
+    action: SnackBarAction(
+      label: "Dismiss",
+      onPressed: () {},
+    ),
+    // elevation: 30,
+  );
+}