From 3fbb53aab0793d452dfa8459a88a0c4bcb4edd21 Mon Sep 17 00:00:00 2001
From: Theaux Masquelier <43664045+Theauxm@users.noreply.github.com>
Date: Thu, 12 Mar 2026 10:44:21 -0600
Subject: [PATCH 1/2] feat: display host tracking fields in metadata pages

Show HostName and HostEnvironment on the metadata list and detail pages
so operators can see which host executed each train.
---
 .../Pages/Data/MetadataDetailPage.razor       | 31 +++++++++++++++++++
 .../Components/Pages/Data/MetadataPage.razor  | 10 ++++++
 2 files changed, 41 insertions(+)

diff --git a/src/Trax.Dashboard/Components/Pages/Data/MetadataDetailPage.razor b/src/Trax.Dashboard/Components/Pages/Data/MetadataDetailPage.razor
index c14f52d..b02477c 100644
--- a/src/Trax.Dashboard/Components/Pages/Data/MetadataDetailPage.razor
+++ b/src/Trax.Dashboard/Components/Pages/Data/MetadataDetailPage.razor
@@ -123,6 +123,37 @@
     </RadzenRow>
 </RadzenCard>
 
+@* ── Execution Host ── *@
+@if (_metadata.HostName is not null || _metadata.HostEnvironment is not null)
+{
+    <RadzenCard class="rz-mb-4">
+        <RadzenText TextStyle="TextStyle.H6" class="rz-mb-2">Execution Host</RadzenText>
+        <RadzenRow Gap="1rem">
+            <RadzenColumn Size="12" SizeMD="6" SizeLG="4">
+                <RadzenStack Gap="0.75rem">
+                    <FieldDisplay Label="Hostname" Value="@(_metadata.HostName ?? "—")" />
+                    <FieldDisplay Label="Environment" Value="@(_metadata.HostEnvironment ?? "—")" />
+                </RadzenStack>
+            </RadzenColumn>
+            <RadzenColumn Size="12" SizeMD="6" SizeLG="4">
+                <RadzenStack Gap="0.75rem">
+                    <FieldDisplay Label="Instance ID" Value="@(_metadata.HostInstanceId ?? "—")" />
+                </RadzenStack>
+            </RadzenColumn>
+            @if (!string.IsNullOrWhiteSpace(_metadata.HostLabels))
+            {
+                <RadzenColumn Size="12" SizeMD="6" SizeLG="4">
+                    <RadzenStack Gap="0.75rem">
+                        <FieldDisplay Label="Labels">
+                            <pre style="font-size: 0.75rem; margin: 0; white-space: pre-wrap; word-break: break-all;">@FormatJson(_metadata.HostLabels)</pre>
+                        </FieldDisplay>
+                    </RadzenStack>
+                </RadzenColumn>
+            }
+        </RadzenRow>
+    </RadzenCard>
+}
+
 @* ── Step Progress (only if in progress with a running step) ── *@
 @if (_metadata.TrainState == TrainState.InProgress && !string.IsNullOrWhiteSpace(_metadata.CurrentlyRunningStep))
 {
diff --git a/src/Trax.Dashboard/Components/Pages/Data/MetadataPage.razor b/src/Trax.Dashboard/Components/Pages/Data/MetadataPage.razor
index e2c7a62..652aa5d 100644
--- a/src/Trax.Dashboard/Components/Pages/Data/MetadataPage.razor
+++ b/src/Trax.Dashboard/Components/Pages/Data/MetadataPage.razor
@@ -96,6 +96,16 @@
                               Title="Manifest Id"
                               Width="140px"
                               Visible="false" />
+        <RadzenDataGridColumn TItem="Metadata"
+                              Property="HostEnvironment"
+                              Title="Host Env"
+                              Width="120px"
+                              Visible="false" />
+        <RadzenDataGridColumn TItem="Metadata"
+                              Property="HostName"
+                              Title="Host"
+                              Width="150px"
+                              Visible="false" />
     </Columns>
 </TraxDataGrid>
 

From edf2bf8dd8eddcd99daa5657269c67f17d38bb62 Mon Sep 17 00:00:00 2001
From: Theaux Masquelier <43664045+Theauxm@users.noreply.github.com>
Date: Thu, 12 Mar 2026 12:37:38 -0600
Subject: [PATCH 2/2] fix: set HasDataProvider in scheduler builder tests
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

AddScheduler() now validates that a data provider is configured.
These tests exercise the scheduling builder API (cycle detection,
input type validation) and don't need actual persistence — just
set the flag to satisfy the precondition.
---
 .../UnitTests/CyclicDependencyValidationTests.cs                | 2 +-
 .../UnitTests/InferredSchedulingApiTests.cs                     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/Trax.Dashboard.Tests.Integration/UnitTests/CyclicDependencyValidationTests.cs b/tests/Trax.Dashboard.Tests.Integration/UnitTests/CyclicDependencyValidationTests.cs
index 1ab3db4..0150a70 100644
--- a/tests/Trax.Dashboard.Tests.Integration/UnitTests/CyclicDependencyValidationTests.cs
+++ b/tests/Trax.Dashboard.Tests.Integration/UnitTests/CyclicDependencyValidationTests.cs
@@ -21,7 +21,7 @@ public class CyclicDependencyValidationTests
     public void SetUp()
     {
         _services = new ServiceCollection();
-        var root = new TraxBuilder(_services, new EffectRegistry());
+        var root = new TraxBuilder(_services, new EffectRegistry()) { HasDataProvider = true };
         _parentBuilder = root.AddEffects(effects => effects)
             .AddMediator(typeof(IFakeSchedulerTrainA).Assembly);
     }
diff --git a/tests/Trax.Dashboard.Tests.Integration/UnitTests/InferredSchedulingApiTests.cs b/tests/Trax.Dashboard.Tests.Integration/UnitTests/InferredSchedulingApiTests.cs
index 52e4f44..573e86a 100644
--- a/tests/Trax.Dashboard.Tests.Integration/UnitTests/InferredSchedulingApiTests.cs
+++ b/tests/Trax.Dashboard.Tests.Integration/UnitTests/InferredSchedulingApiTests.cs
@@ -22,7 +22,7 @@ public class InferredSchedulingApiTests
     public void SetUp()
     {
         _services = new ServiceCollection();
-        var root = new TraxBuilder(_services, new EffectRegistry());
+        var root = new TraxBuilder(_services, new EffectRegistry()) { HasDataProvider = true };
         _parentBuilder = root.AddEffects(effects => effects)
             .AddMediator(typeof(IFakeSchedulerTrainA).Assembly);
     }