From 6299743a352dc57d7516dc4ac286ffe726e9452d Mon Sep 17 00:00:00 2001
From: Joseph Doherty <dohejw01@gmail.com>
Date: Sun, 24 May 2026 07:38:23 -0400
Subject: [PATCH] fix(centralui): show Next button after encrypted-bundle
 upload

Step 1's Next button was wrapped in `@if (_session is not null)`, which
hid it for encrypted bundles where the first LoadAsync call legitimately
leaves _session null until the passphrase is supplied at Step 2.
Trigger the Next-button region on `_bundleBytes is not null` instead,
showing a placeholder notice when the manifest isn't decrypted yet so
the user has a visible affordance to advance to the passphrase step.
---
 .../Pages/Design/TransportImport.razor        | 58 +++++++++++--------
 1 file changed, 34 insertions(+), 24 deletions(-)

diff --git a/src/ScadaLink.CentralUI/Components/Pages/Design/TransportImport.razor b/src/ScadaLink.CentralUI/Components/Pages/Design/TransportImport.razor
index 2321ffe..6977836 100644
--- a/src/ScadaLink.CentralUI/Components/Pages/Design/TransportImport.razor
+++ b/src/ScadaLink.CentralUI/Components/Pages/Design/TransportImport.razor
@@ -103,36 +103,46 @@
                 <div class="text-muted small fst-italic">Reading bundle…</div>
             }
 
-            @if (_session is not null)
+            @if (_bundleBytes is not null && _errorMessage is null)
             {
-                <dl class="row small mt-3" data-testid="manifest-summary">
-                    <dt class="col-sm-3">Source environment</dt>
-                    <dd class="col-sm-9"><code>@_session.Manifest.SourceEnvironment</code></dd>
+                @if (_session is not null)
+                {
+                    <dl class="row small mt-3" data-testid="manifest-summary">
+                        <dt class="col-sm-3">Source environment</dt>
+                        <dd class="col-sm-9"><code>@_session.Manifest.SourceEnvironment</code></dd>
 
-                    <dt class="col-sm-3">Exported by</dt>
-                    <dd class="col-sm-9">@_session.Manifest.ExportedBy</dd>
+                        <dt class="col-sm-3">Exported by</dt>
+                        <dd class="col-sm-9">@_session.Manifest.ExportedBy</dd>
 
-                    <dt class="col-sm-3">Created</dt>
-                    <dd class="col-sm-9">@_session.Manifest.CreatedAtUtc.ToString("u")</dd>
+                        <dt class="col-sm-3">Created</dt>
+                        <dd class="col-sm-9">@_session.Manifest.CreatedAtUtc.ToString("u")</dd>
 
-                    <dt class="col-sm-3">Content count</dt>
-                    <dd class="col-sm-9">@_session.Manifest.Contents.Count items</dd>
+                        <dt class="col-sm-3">Content count</dt>
+                        <dd class="col-sm-9">@_session.Manifest.Contents.Count items</dd>
 
-                    <dt class="col-sm-3">SHA-256</dt>
-                    <dd class="col-sm-9"><code class="small">@_session.Manifest.ContentHash</code></dd>
+                        <dt class="col-sm-3">SHA-256</dt>
+                        <dd class="col-sm-9"><code class="small">@_session.Manifest.ContentHash</code></dd>
 
-                    <dt class="col-sm-3">Encryption</dt>
-                    <dd class="col-sm-9">
-                        @if (_session.Manifest.Encryption is null)
-                        {
-                            <span class="text-warning">Unencrypted</span>
-                        }
-                        else
-                        {
-                            <span class="text-success">@_session.Manifest.Encryption.Algorithm</span>
-                        }
-                    </dd>
-                </dl>
+                        <dt class="col-sm-3">Encryption</dt>
+                        <dd class="col-sm-9">
+                            @if (_session.Manifest.Encryption is null)
+                            {
+                                <span class="text-warning">Unencrypted</span>
+                            }
+                            else
+                            {
+                                <span class="text-success">@_session.Manifest.Encryption.Algorithm</span>
+                            }
+                        </dd>
+                    </dl>
+                }
+                else
+                {
+                    <div class="alert alert-info mt-3" data-testid="encrypted-bundle-notice">
+                        <strong>Encrypted bundle uploaded.</strong>
+                        Click <strong>Next</strong> to enter the passphrase.
+                    </div>
+                }
 
                 <div class="d-flex justify-content-end mt-3">
                     <button class="btn btn-primary" @onclick="GoFromUploadAsync">Next</button>