From 035639b30efdaf7d1b3b538a93b95045a7d1aced Mon Sep 17 00:00:00 2001
From: cania <cania@omahcitra.com>
Date: Thu, 13 Aug 2026 11:03:05 +0200
Subject: [PATCH] Settings: confirm dialog before enabling biometric; cancel
 reverts switch to OFF

---
 lib/settings_screen.dart | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/lib/settings_screen.dart b/lib/settings_screen.dart
index ea665ec..2f200e2 100644
--- a/lib/settings_screen.dart
+++ b/lib/settings_screen.dart
@@ -80,6 +80,33 @@ class _SettingsScreenState extends State<SettingsScreen> {
       });
       return;
     }
+    // When turning ON, ask for confirmation first. If cancelled, keep OFF.
+    if (value) {
+      final confirmed = await showDialog<bool>(
+        context: context,
+        builder: (ctx) => AlertDialog(
+          title: const Text('Aktifkan Sidik Jari?'),
+          content: const Text(
+              'Saat login, Anda akan diminta verifikasi sidik jari '
+              'untuk masuk tanpa mengisi email & password.'),
+          actions: [
+            TextButton(
+              onPressed: () => Navigator.of(ctx).pop(false),
+              child: const Text('Batal'),
+            ),
+            TextButton(
+              onPressed: () => Navigator.of(ctx).pop(true),
+              child: const Text('Aktifkan'),
+            ),
+          ],
+        ),
+      );
+      if (confirmed != true) {
+        // cancelled -> revert switch to OFF
+        if (mounted) setState(() => _biometricOn = false);
+        return;
+      }
+    }
     // Settings only sets the flag; actual biometric prompt happens at login.
     await widget.auth.setBiometricEnabled(value);
     if (mounted) {