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feat(admin-ui): add /virtual-tags, /scripted-alarms, and /script-log pages (tasks #25, #26, #27)

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Gap 2 (#25): VirtualTagsTab.razor + /virtual-tags global page — list/create/toggle
virtual tags per draft generation with DataType, Script, trigger, Historize, Enabled
fields. Tab wired into DraftEditor.

Gap 3 (#26): ScriptedAlarmsTab.razor + /scripted-alarms global page — list/create
scripted alarms with AlarmType, Severity, MessageTemplate, PredicateScript,
HistorizeToAveva, Retain. SeverityBand helper shows Low/Medium/High/Critical label.
Tab wired into DraftEditor.

Gap 4 (#27): ScriptLogHub (SignalR IAsyncEnumerable stream) tails scripts-*.log with
optional ScriptName filter; ScriptLog.razor provides Start/Stop/Clear controls plus
level filter dropdown. Hub registered at /hubs/script-log in Program.cs.

Nav rail gains a "Scripting" eyebrow with entries for all three pages.
19 new unit tests for ScriptLogHub parse/filter/tail helpers (Category=Unit).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Joseph Doherty
2026-05-18 05:49:05 -04:00
parent bc8ff7a5fe
commit 41f133a337
10 changed files with 1548 additions and 0 deletions
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src/Server/ZB.MOM.WW.OtOpcUa.Admin/Components/Pages/ScriptLog.razor Normal file
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@page "/script-log"
@attribute [Microsoft.AspNetCore.Authorization.Authorize]
@rendermode RenderMode.InteractiveServer
@using Microsoft.AspNetCore.Components.Web
@using Microsoft.AspNetCore.SignalR.Client
@using ZB.MOM.WW.OtOpcUa.Admin.Hubs
@inject NavigationManager Nav
@implements IAsyncDisposable
<h1 class="page-title">Script log viewer</h1>
<p class="text-muted">
Live tail of the <code class="mono">scripts-*.log</code> file produced by the OPC UA Server's
Roslyn script runtime. Useful for diagnosing virtual-tag and scripted-alarm script errors in production.
Filter by script name to see only events from one script.
</p>
<div class="toolbar mb-3">
<input class="form-control form-control-sm"
style="max-width:22rem"
placeholder="Filter by script name (optional)"
@bind="_scriptNameFilter"
@bind:event="oninput"
disabled="@_streaming"/>
<select class="form-select form-select-sm ms-2" style="max-width:10rem" @bind="_minLevel" disabled="@_streaming">
<option value="VRB">All (VRB+)</option>
<option value="DBG">DBG+</option>
<option value="INF">INF+</option>
<option value="WRN">WRN+</option>
<option value="ERR">ERR+</option>
</select>
<button class="btn btn-sm btn-primary ms-2" @onclick="StartAsync" disabled="@_streaming">Start</button>
<button class="btn btn-sm btn-outline-secondary ms-1" @onclick="StopAsync" disabled="@(!_streaming)">Stop</button>
<button class="btn btn-sm btn-outline-danger ms-1" @onclick="ClearLines">Clear</button>
<span class="spacer"></span>
@if (_streaming)
{
<span class="chip chip-ok">Streaming</span>
}
else if (_stopped)
{
<span class="chip chip-idle">Stopped</span>
}
@if (_lines.Count > 0) { <span class="tb-count ms-2">@_lines.Count line@(_lines.Count == 1 ? "" : "s")</span> }
</div>
@if (_error is not null)
{
<section class="panel notice rise" style="animation-delay:.02s">
<span class="s-bad">@_error</span>
<button type="button" class="btn-close float-end" @onclick="() => _error = null"></button>
</section>
}
@if (_lines.Count == 0 && !_streaming && !_stopped)
{
<section class="panel notice rise" style="animation-delay:.04s">
Press <strong>Start</strong> to begin tailing the script log. The last @ScriptLogHub.TailSeedLines lines
are replayed first, then new lines appear as they are written by the OPC UA Server script runtime.
</section>
}
else if (_lines.Count == 0 && (_streaming || _stopped))
{
<section class="panel notice rise" style="animation-delay:.04s">
No matching log lines found. Check that the OPC UA Server is running and has executed at least one script,
and that the <code class="mono">ScriptLog:Directory</code> setting points to the correct log folder.
</section>
}
else
{
<section class="panel rise" style="animation-delay:.08s">
<div class="panel-head d-flex justify-content-between align-items-center">
<span>Script log</span>
<small class="text-muted">Latest @_lines.Count entries — oldest first</small>
</div>
<div class="table-wrap" style="max-height:60vh;overflow-y:auto" @ref="_tableContainer">
<table class="data-table" style="font-size:.85rem">
<thead>
<tr>
<th style="width:7rem">Level</th>
<th style="width:14rem">Script</th>
<th>Message</th>
</tr>
</thead>
<tbody>
@foreach (var line in _lines)
{
<tr class="@RowClass(line.Level)">
<td><span class="chip @LevelBadge(line.Level)">@line.Level</span></td>
<td><span class="mono small">@(line.ScriptName ?? "—")</span></td>
<td><span class="mono small" style="white-space:pre-wrap;word-break:break-all">@line.Raw</span></td>
</tr>
}
</tbody>
</table>
</div>
</section>
}
@code {
// Keep at most this many lines in-memory to avoid DOM growth.
private const int MaxLines = 1000;
private HubConnection? _hub;
private CancellationTokenSource? _streamCts;
private List<ScriptLogLine> _lines = [];
private string _scriptNameFilter = string.Empty;
private string _minLevel = "INF";
private bool _streaming;
private bool _stopped;
private string? _error;
private ElementReference _tableContainer;
private static readonly string[] LevelOrder = ["VRB", "DBG", "INF", "WRN", "ERR", "FTL"];
private async Task StartAsync()
{
_error = null;
_streaming = false;
_stopped = false;
try
{
_hub ??= new HubConnectionBuilder()
.WithUrl(Nav.ToAbsoluteUri("/hubs/script-log"))
.WithAutomaticReconnect()
.Build();
if (_hub.State == HubConnectionState.Disconnected)
await _hub.StartAsync();
_streamCts = new CancellationTokenSource();
_streaming = true;
// Fire-and-forget into the background; updates come via StateHasChanged.
_ = Task.Run(() => ConsumeStreamAsync(_streamCts.Token));
}
catch (Exception ex)
{
_error = $"Failed to connect to script log hub: {ex.Message}";
_streaming = false;
}
}
private async Task ConsumeStreamAsync(CancellationToken ct)
{
try
{
var stream = _hub!.StreamAsync<ScriptLogLine>(
"TailLogAsync", _scriptNameFilter, ct);
await foreach (var line in stream.WithCancellation(ct))
{
if (!PassesLevelFilter(line.Level)) continue;
await InvokeAsync(() =>
{
_lines.Add(line);
if (_lines.Count > MaxLines)
_lines.RemoveRange(0, _lines.Count - MaxLines);
StateHasChanged();
});
}
}
catch (OperationCanceledException) { /* normal stop */ }
catch (Exception ex)
{
await InvokeAsync(() =>
{
_error = $"Stream error: {ex.Message}";
_streaming = false;
_stopped = true;
StateHasChanged();
});
return;
}
await InvokeAsync(() =>
{
_streaming = false;
_stopped = true;
StateHasChanged();
});
}
private async Task StopAsync()
{
if (_streamCts is not null)
{
await _streamCts.CancelAsync();
_streamCts.Dispose();
_streamCts = null;
}
_streaming = false;
_stopped = true;
}
private void ClearLines()
{
_lines.Clear();
_stopped = false;
}
private bool PassesLevelFilter(string level)
{
var minIdx = Array.IndexOf(LevelOrder, _minLevel);
var lineIdx = Array.IndexOf(LevelOrder, level);
return lineIdx >= minIdx;
}
private static string LevelBadge(string level) => level switch
{
"ERR" or "FTL" => "chip-bad",
"WRN" => "chip-warn",
"INF" => "chip-ok",
_ => "chip-idle",
};
private static string RowClass(string level) => level switch
{
"ERR" or "FTL" => "table-danger",
"WRN" => "table-warning",
_ => string.Empty,
};
public async ValueTask DisposeAsync()
{
if (_streamCts is not null)
{
await _streamCts.CancelAsync();
_streamCts.Dispose();
}
if (_hub is not null)
{
await _hub.DisposeAsync();
_hub = null;
}
}
}