G2.5-A2.1: command-bound high-speed stimulus witness

App.xaml.cs

@@ -46,6 +46,7 @@ protected override void OnStartup(StartupEventArgs e)
         // isolated dynamic-DataSet qualification; it is never invoked by normal startup,
         // Connect/Play, monitoring, reconnect or report-planner paths.
         DynamicReportQualificationUiBehavior.Install();
+        DynamicReportCommandBoundWitnessUiBehavior.Install();
         DispatcherUnhandledException += OnDispatcherUnhandledException;
         TaskScheduler.UnobservedTaskException += (_, args) => args.SetObserved();
 

ControlCommandWindow.A21Witness.cs

@@ -0,0 +1,13 @@
+using ArIED61850Tester.Models;
+
+namespace ArIED61850Tester;
+
+/// <summary>
+/// Read-only A2.1 adapter. This partial exposes context only; it adds no command
+/// behavior and leaves the existing IEC 61850 control transaction completely untouched.
+/// </summary>
+public partial class ControlCommandWindow
+{
+    internal SignalDefinition A21WitnessSignal => _signal;
+    internal Iec61850MonitorDevice A21WitnessDevice => _device;
+}

DynamicReportCommandBoundWitnessUiBehavior.cs

@@ -0,0 +1,130 @@
+using System.Threading;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+using ArIED61850Tester.Services;
+
+namespace ArIED61850Tester;
+
+internal static class DynamicReportCommandBoundWitnessUiBehavior
+{
+    private static int _installed;
+    private static int _busy;
+
+    public static void Install()
+    {
+        if (Interlocked.Exchange(ref _installed, 1) != 0)
+            return;
+
+        EventManager.RegisterClassHandler(
+            typeof(MainWindow),
+            Keyboard.PreviewKeyDownEvent,
+            new KeyEventHandler(OnPreviewKeyDown),
+            handledEventsToo: true);
+
+        // Observer-only bridge for the dedicated ControlCommandWindow path. WPF class
+        // handlers execute before the window's existing SendCommand_Click instance
+        // handler. We only publish immutable intent context; the control handler and
+        // its ExecuteControlAsync/SBOw/Operate sequence remain untouched.
+        EventManager.RegisterClassHandler(
+            typeof(Button),
+            Button.ClickEvent,
+            new RoutedEventHandler(OnAnyButtonClick),
+            handledEventsToo: true);
+    }
+
+    private static void OnAnyButtonClick(object sender, RoutedEventArgs e)
+    {
+        if (sender is not Button button || Window.GetWindow(button) is not ControlCommandWindow commandWindow)
+            return;
+
+        var label = button.Content?.ToString()?.Trim() ?? string.Empty;
+        if (!label.Equals("Send Command", StringComparison.OrdinalIgnoreCase) &&
+            !label.Equals("Send Test", StringComparison.OrdinalIgnoreCase))
+            return;
+
+        if (!commandWindow.CanSend)
+            return;
+
+        DynamicReportCommandIntentObservation.Publish(new DynamicReportObservedCommandIntent(
+            commandWindow.A21WitnessDevice,
+            commandWindow.A21WitnessSignal,
+            commandWindow.SelectedValue,
+            "ControlCommandWindow.RoutedButtonClick",
+            DateTimeOffset.UtcNow));
+    }
+
+    private static async void OnPreviewKeyDown(object sender, KeyEventArgs e)
+    {
+        if (sender is not MainWindow window ||
+            Keyboard.Modifiers != (ModifierKeys.Control | ModifierKeys.Shift) ||
+            e.Key != Key.F)
+            return;
+
+        e.Handled = true;
+        var device = window.SelectedDevice;
+        if (device is null)
+        {
+            MessageBox.Show(
+                window,
+                "Select one IEC 61850 IED first. G2.5-A2.1 is intentionally bound to one explicit IED and one explicit ARSAS command.",
+                "G2.5-A2.1 Command-Bound Witness",
+                MessageBoxButton.OK,
+                MessageBoxImage.Information);
+            return;
+        }
+
+        if (Interlocked.Exchange(ref _busy, 1) != 0)
+        {
+            MessageBox.Show(
+                window,
+                "G2.5-A2.1 is already armed/running.",
+                "G2.5-A2.1 Command-Bound Witness",
+                MessageBoxButton.OK,
+                MessageBoxImage.Information);
+            return;
+        }
+
+        try
+        {
+            var answer = MessageBox.Show(
+                window,
+                $"Arm G2.5-A2.1 command-bound high-speed stimulus witness for {device.Name} ({device.EndpointText})?\n\n" +
+                "READ-ONLY WITNESS + ONE EXISTING ARSAS CONTROL COMMAND\n\n" +
+                "A2.1 V2 opens one isolated read-only MMS association and captures a PRE-COMMAND baseline. It can observe BOTH the fast Command Panel and the dedicated Control Command dialog without changing either control transaction.\n\n" +
+                "After the status shows 'G2.5-A2.1 READY — ISSUE ONE ARSAS COMMAND', issue exactly ONE already-proven safe OPEN or CLOSE using the normal ARSAS Command Panel or dedicated Control Command dialog you normally use. Do NOT use an external/manual stimulus for this phase.\n\n" +
+                "The observer then narrows read-only sampling to at most six points around the exact ControlStatusReference. Existing ExecuteControlAsync, SBOw, Operate and CommandTermination behavior is NOT modified, delayed, wrapped or re-issued.\n\n" +
+                "Once 'G2.5-A2.1 COMMAND CAPTURED' appears, do not issue another command. If a transition is seen, A2.1 samples briefly to classify persistent/latched versus momentary/pulse behavior.\n\n" +
+                "The witness does not access/mutate RCB or DataSet state, does not send GI, does not save/advance the qualification profile, and production dynamic reporting remains OFF. Do not run another G2 hotkey while A2.1 is armed.\n\n" +
+                "Continue?",
+                "G2.5-A2.1 Command-Bound High-Speed Witness",
+                MessageBoxButton.YesNo,
+                MessageBoxImage.Warning,
+                MessageBoxResult.No);
+            if (answer != MessageBoxResult.Yes)
+                return;
+
+            window.LastStatusText = $"G2.5-A2.1 V2: opening isolated read-only MMS witness for {device.Name} and preparing pre-command baseline…";
+            var progress = new Progress<string>(text => window.LastStatusText = text);
+            var service = new DynamicReportCommandBoundStimulusWitnessServiceV2();
+            var result = await service.RunAsync(device, device.Signals.ToArray(), progress, CancellationToken.None);
+            window.LastStatusText = result.Summary;
+            var evidenceWindow = new DynamicReportQualificationResultWindow(result) { Owner = window };
+            evidenceWindow.ShowDialog();
+        }
+        catch (Exception ex)
+        {
+            window.LastStatusText = "G2.5-A2.1 V2 stopped locally; production dynamic reporting remains OFF.";
+            MessageBox.Show(
+                window,
+                "G2.5-A2.1 V2 stopped. The witness did not change production reporting policy.\n\n" + ex,
+                "G2.5-A2.1 Command-Bound Witness",
+                MessageBoxButton.OK,
+                MessageBoxImage.Error);
+        }
+        finally
+        {
+            Interlocked.Exchange(ref _busy, 0);
+        }
+    }
+}

DynamicReportQualificationResultWindow.G25A21.cs

@@ -0,0 +1,114 @@
+using System.Globalization;
+using System.Text;
+using ArIED61850Tester.Services;
+
+namespace ArIED61850Tester;
+
+internal partial class DynamicReportQualificationResultWindow
+{
+    internal DynamicReportQualificationResultWindow(DynamicReportCommandBoundStimulusWitnessResult result)
+    {
+        ArgumentNullException.ThrowIfNull(result);
+        InitializeComponent();
+
+        Title = "G2.5-A2.1 Command-Bound Stimulus Witness Evidence";
+        HeaderText.Text = "G2.5-A2.1 Command-Bound High-Speed Witness";
+        SummaryText.Text = result.Summary;
+        StateText.Text = result.IsSuccess
+            ? "Command-Bound Transition Proven"
+            : result.IsBlocked
+                ? "Blocked"
+                : "Command-Bound Transition Not Proven";
+        EvidenceTextBox.Text = BuildG25A21Evidence(result);
+
+        if (result.IsSuccess)
+            SetPassBadge();
+    }
+
+    private static string BuildG25A21Evidence(DynamicReportCommandBoundStimulusWitnessResult result)
+    {
+        var builder = new StringBuilder();
+        builder.AppendLine("ARSAS G2.5-A2.1 COMMAND-BOUND HIGH-SPEED STIMULUS WITNESS EVIDENCE");
+        builder.AppendLine(new string('=', 92));
+        builder.AppendLine($"Result: {result.Summary}");
+        builder.AppendLine($"Blocked: {result.IsBlocked}");
+        builder.AppendLine($"G2.5-A2.1 success: {result.IsSuccess}");
+        builder.AppendLine($"Stimulus witness proven: {result.StimulusWitnessProven}");
+
+        if (result.Identity is not null)
+        {
+            builder.AppendLine();
+            builder.AppendLine("IED IDENTITY");
+            builder.AppendLine($"Stable identity: {result.Identity.StableIdentityKey}");
+            builder.AppendLine($"Model fingerprint: {result.Identity.ModelFingerprint}");
+            builder.AppendLine($"Model: {result.Identity.Model}");
+            builder.AppendLine($"Firmware: {result.Identity.FirmwareRevision}");
+            builder.AppendLine($"Profile revision: {result.Identity.ProfileRevision}");
+        }
+
+        builder.AppendLine();
+        builder.AppendLine("COMMAND BINDING");
+        builder.AppendLine($"Input profile state: {result.InputProfile?.State.ToString() ?? "-"}");
+        builder.AppendLine($"Pre-command baseline captured: {result.BaselineCaptured}");
+        builder.AppendLine($"Command captured: {result.CommandCaptured}");
+        builder.AppendLine($"Command signal: {G25A21TextOrDash(result.CommandSignalReference)}");
+        builder.AppendLine($"ControlStatusReference: {G25A21TextOrDash(result.ControlStatusReference)}");
+        builder.AppendLine($"Control model: {G25A21TextOrDash(result.ControlModelText)}");
+        builder.AppendLine($"Pre-command baseline points: {result.PreCommandBaselineCount}");
+        builder.AppendLine($"Focused candidates: {result.FocusCandidateCount}");
+        builder.AppendLine($"Sample cycles: {result.SampleCycles}");
+        builder.AppendLine($"Read failures: {result.ReadFailures}");
+        builder.AppendLine($"Association healthy: {result.AssociationHealthy}");
+
+        builder.AppendLine();
+        builder.AppendLine("ELIGIBLE COMMAND-BOUND CANDIDATES");
+        if (result.EligibleCandidates.Count == 0)
+        {
+            builder.AppendLine("  none");
+        }
+        else
+        {
+            foreach (var candidate in result.EligibleCandidates)
+            {
+                builder.AppendLine($"  #{candidate.Rank} {candidate.Reference}");
+                builder.AppendLine($"     MMS: {candidate.MmsReference}");
+                builder.AppendLine($"     Exact ControlStatusReference: {candidate.ExactControlStatus}");
+                builder.AppendLine($"     Kind: {candidate.Kind}");
+                builder.AppendLine($"     Baseline -> final: {candidate.BaselineValue} -> {candidate.FinalValue}");
+                builder.AppendLine($"     Transitions: {candidate.TransitionCount}");
+                builder.AppendLine($"     Observed active/pulse duration ms: {G25A21FormatDuration(candidate.ObservedActiveMilliseconds)}");
+                foreach (var transition in candidate.Transitions)
+                    builder.AppendLine($"       {transition.ObservedAtUtc:O} | {transition.BeforeValue} -> {transition.AfterValue}");
+            }
+        }
+
+        builder.AppendLine();
+        builder.AppendLine("ALL FOCUSED OBSERVATIONS");
+        foreach (var candidate in result.Observations)
+        {
+            builder.AppendLine($"  exact={candidate.ExactControlStatus,-5} | transitions={candidate.TransitionCount,2} | {candidate.Kind,-20} | {candidate.Reference} | {candidate.BaselineValue} -> {candidate.FinalValue}");
+        }
+
+        builder.AppendLine();
+        builder.AppendLine("WIRE / DIAGNOSTIC EVIDENCE");
+        foreach (var line in result.EvidenceLines)
+            builder.AppendLine(line);
+
+        builder.AppendLine();
+        builder.AppendLine("SAFETY STATE");
+        builder.AppendLine("G2.5-A2.1 witness is read-only and does not alter, delay, wrap or re-issue the existing ARSAS control transaction.");
+        builder.AppendLine("The one OPEN/CLOSE command is the operator-requested existing ARSAS control action; the witness itself performs no control write.");
+        builder.AppendLine("G2.5-A2.1 does not access/mutate RCB/DataSet state, send GI, save the InformationReportProven profile, or enable production dynamic reporting.");
+        builder.AppendLine("G2.5-A2.1 PASS identifies a command-bound physical MMS candidate only; it does NOT prove spontaneous dchg reporting.");
+        builder.AppendLine("Production automatic dynamic reporting remains OFF.");
+        return builder.ToString();
+    }
+
+    private static string G25A21FormatDuration(double? milliseconds)
+        => milliseconds.HasValue
+            ? milliseconds.Value.ToString("0.0", CultureInfo.InvariantCulture)
+            : "-";
+
+    private static string G25A21TextOrDash(string? value)
+        => string.IsNullOrWhiteSpace(value) ? "-" : value.Trim();
+}