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lib/components/sidebar_contents/gdpr_button.dart

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+import 'dart:async';
+import 'package:flutter/material.dart';
+import 'package:google_mobile_ads/google_mobile_ads.dart';
+import 'package:revoltvpn/logic/app_colors.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+/// GdprButton lets the user review or change their ad consent choices.
+///
+/// When tapped, it tries to show Google's UMP consent form so the user
+/// can adjust their preferences (personalized vs non-personalized ads).
+/// If the form isn't available (e.g. user is outside the EEA), it falls
+/// back to opening the privacy policy instead.
+class GdprButton extends StatelessWidget {
+  const GdprButton({super.key});
+
+  /// Public entry point so the sidebar (or any other widget) can trigger
+  /// the consent flow without embedding an IconButton.
+  static Future<void> showConsentForm() async {
+    try {
+      // If the form is already available, show it directly — no need to
+      // re-request consent info from Google's servers on every tap.
+      if (await ConsentInformation.instance.isConsentFormAvailable()) {
+        await _loadAndShowForm();
+        return;
+      }
+
+      // Form not available — refresh consent info first, then try again.
+      final completer = Completer<void>();
+      ConsentInformation.instance.requestConsentInfoUpdate(
+        ConsentRequestParameters(),
+        () async {
+          if (await ConsentInformation.instance.isConsentFormAvailable()) {
+            await _loadAndShowForm();
+          }
+          completer.complete();
+        },
+        (FormError error) {
+          debugPrint('[GDPR] Consent update error: ${error.message}');
+          _fallbackToPrivacyPolicy();
+          completer.complete();
+        },
+      );
+      await completer.future.timeout(
+        const Duration(seconds: 10),
+        onTimeout: _fallbackToPrivacyPolicy,
+      );
+    } catch (e) {
+      debugPrint('[GDPR] Error: $e');
+      _fallbackToPrivacyPolicy();
+    }
+  }
+
+  static Future<void> _loadAndShowForm() async {
+    final completer = Completer<void>();
+    ConsentForm.loadConsentForm(
+      (ConsentForm form) {
+        form.show((FormError? dismissError) {
+          if (dismissError != null) {
+            debugPrint('[GDPR] Form dismissed with error: ${dismissError.message}');
+          }
+          completer.complete();
+        });
+      },
+      (FormError loadError) {
+        debugPrint('[GDPR] Form load error: ${loadError.message}');
+        _fallbackToPrivacyPolicy();
+        completer.complete();
+      },
+    );
+    await completer.future.timeout(
+      const Duration(seconds: 120),
+      onTimeout: _fallbackToPrivacyPolicy,
+    );
+  }
+
+  static void _fallbackToPrivacyPolicy() async {
+    final Uri url = Uri.parse(
+      'https://github.com/esefxdz/ReVoltVPN/blob/main/PRIVACY_POLICY.md',
+    );
+    if (!await launchUrl(url, mode: LaunchMode.externalApplication)) {
+      debugPrint('Could not launch $url');
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return IconButton(
+      icon: const Icon(Icons.admin_panel_settings_outlined,
+          color: AppColors.textWhite, size: 28),
+      onPressed: showConsentForm,
+      tooltip: 'Ad consent & privacy choices',
+      splashRadius: 24,
+    );
+  }
+}