chore: Wait for secrets after bootstrap verification

lib/pages/bootstrap/bootstrap_dialog.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
 
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
@@ -419,8 +421,33 @@ class BootstrapDialogState extends State<BootstrapDialog> {
                                 },
                               );
                               if (req.error != null) return;
-                              await KeyVerificationDialog(request: req.result!)
-                                  .show(context);
+                              final success = await KeyVerificationDialog(
+                                request: req.result!,
+                              ).show(context);
+                              if (success != true) return;
+                              if (!mounted) return;
+
+                              final waitForSecret = Completer();
+                              final secretsSub = client
+                                  .encryption!.ssss.onSecretStored.stream
+                                  .listen((
+                                event,
+                              ) async {
+                                if (await client.encryption!.keyManager
+                                        .isCached() &&
+                                    await client.encryption!.crossSigning
+                                        .isCached()) {
+                                  waitForSecret.complete();
+                                }
+                              });
+
+                              final result = await showFutureLoadingDialog(
+                                context: context,
+                                future: () => waitForSecret.future,
+                              );
+                              await secretsSub.cancel();
+                              if (!mounted) return;
+                              if (!result.isError) _goBackAction(true);
                             },
                     ),
                     const SizedBox(height: 16),

lib/pages/key_verification/key_verification_dialog.dart

@@ -14,7 +14,7 @@ import 'package:fluffychat/widgets/avatar.dart';
 import 'package:fluffychat/widgets/future_loading_dialog.dart';
 
 class KeyVerificationDialog extends StatefulWidget {
-  Future<void> show(BuildContext context) => showAdaptiveDialog(
+  Future<bool?> show(BuildContext context) => showAdaptiveDialog<bool>(
         context: context,
         builder: (context) => this,
         barrierDismissible: false,
@@ -186,9 +186,9 @@ class KeyVerificationPageState extends State<KeyVerificationDialog> {
         );
         buttons.add(
           AdaptiveDialogAction(
-            onPressed: () => widget.request
-                .rejectVerification()
-                .then((_) => Navigator.of(context, rootNavigator: false).pop()),
+            onPressed: () => widget.request.rejectVerification().then(
+                  (_) => Navigator.of(context, rootNavigator: false).pop(false),
+                ),
             child: Text(
               L10n.of(context).reject,
               style: TextStyle(color: theme.colorScheme.error),
@@ -318,7 +318,8 @@ class KeyVerificationPageState extends State<KeyVerificationDialog> {
             child: Text(
               L10n.of(context).close,
             ),
-            onPressed: () => Navigator.of(context, rootNavigator: false).pop(),
+            onPressed: () =>
+                Navigator.of(context, rootNavigator: false).pop(true),
           ),
         );
         break;
@@ -342,7 +343,8 @@ class KeyVerificationPageState extends State<KeyVerificationDialog> {
             child: Text(
               L10n.of(context).close,
             ),
-            onPressed: () => Navigator.of(context, rootNavigator: false).pop(),
+            onPressed: () =>
+                Navigator.of(context, rootNavigator: false).pop(false),
           ),
         );
         break;