feat(central-ui): Notification KPIs page with per-site breakdown

This commit is contained in:
Joseph Doherty
2026-05-19 06:09:43 -04:00
parent 34e464edab
commit 22bac058dd
2 changed files with 357 additions and 0 deletions

View File

@@ -0,0 +1,209 @@
@page "/notifications/kpis"
@attribute [Authorize(Policy = ScadaLink.Security.AuthorizationPolicies.RequireDeployment)]
@using ScadaLink.Commons.Entities.Sites
@using ScadaLink.Commons.Interfaces.Repositories
@using ScadaLink.Commons.Messages.Notification
@using ScadaLink.Commons.Types.Notifications
@using ScadaLink.Communication
@inject CommunicationService CommunicationService
@inject ISiteRepository SiteRepository
@inject ILogger<NotificationKpis> Logger
<div class="container-fluid mt-3">
<div class="d-flex justify-content-between align-items-center mb-3">
<h4 class="mb-0">Notification KPIs</h4>
<button class="btn btn-outline-secondary btn-sm" @onclick="RefreshAll" disabled="@_loading">
@if (_loading) { <span class="spinner-border spinner-border-sm me-1" role="status"></span> }
Refresh
</button>
</div>
@* ── Global KPI tiles ── *@
@if (_kpiError != null)
{
<div class="alert alert-warning py-2">KPIs unavailable: @_kpiError</div>
}
else
{
<div class="row g-3 mb-4">
<div class="col-lg col-md-4 col-6">
<div class="card h-100">
<div class="card-body text-center py-3">
<h3 class="mb-0">@_kpi.QueueDepth</h3>
<small class="text-muted">Queue Depth</small>
</div>
</div>
</div>
<div class="col-lg col-md-4 col-6">
<div class="card h-100 @(_kpi.StuckCount > 0 ? "border-warning" : "")">
<div class="card-body text-center py-3">
<h3 class="mb-0 @(_kpi.StuckCount > 0 ? "text-warning" : "")">@_kpi.StuckCount</h3>
<small class="text-muted">Stuck</small>
</div>
</div>
</div>
<div class="col-lg col-md-4 col-6">
<div class="card h-100 @(_kpi.ParkedCount > 0 ? "border-danger" : "")">
<div class="card-body text-center py-3">
<h3 class="mb-0 @(_kpi.ParkedCount > 0 ? "text-danger" : "")">@_kpi.ParkedCount</h3>
<small class="text-muted">Parked</small>
</div>
</div>
</div>
<div class="col-lg col-md-4 col-6">
<div class="card h-100">
<div class="card-body text-center py-3">
<h3 class="mb-0 text-success">@_kpi.DeliveredLastInterval</h3>
<small class="text-muted">Delivered (last interval)</small>
</div>
</div>
</div>
<div class="col-lg col-md-4 col-6">
<div class="card h-100">
<div class="card-body text-center py-3">
<h3 class="mb-0">@FormatAge(_kpi.OldestPendingAge)</h3>
<small class="text-muted">Oldest Pending Age</small>
</div>
</div>
</div>
</div>
}
@* ── Per-site breakdown ── *@
<h5 class="mb-2">Per-site breakdown</h5>
@if (_perSiteError != null)
{
<div class="alert alert-warning py-2">Per-site KPIs unavailable: @_perSiteError</div>
}
else if (_perSite.Count == 0)
{
<div class="card">
<div class="card-body text-center text-muted py-4">
<div class="small">No per-site activity.</div>
</div>
</div>
}
else
{
<div class="table-responsive">
<table class="table table-sm table-hover align-middle">
<thead class="table-light">
<tr>
<th>Site</th>
<th class="text-end">Queue Depth</th>
<th class="text-end">Stuck</th>
<th class="text-end">Parked</th>
<th class="text-end">Delivered (last interval)</th>
<th class="text-end">Oldest Pending Age</th>
</tr>
</thead>
<tbody>
@foreach (var s in _perSite)
{
<tr @key="s.SourceSiteId" class="@(s.StuckCount > 0 ? "table-warning" : "")">
<td>@SiteName(s.SourceSiteId)</td>
<td class="text-end font-monospace">@s.QueueDepth</td>
<td class="text-end font-monospace @(s.StuckCount > 0 ? "text-warning" : "")">@s.StuckCount</td>
<td class="text-end font-monospace @(s.ParkedCount > 0 ? "text-danger" : "")">@s.ParkedCount</td>
<td class="text-end font-monospace text-success">@s.DeliveredLastInterval</td>
<td class="text-end font-monospace">@FormatAge(s.OldestPendingAge)</td>
</tr>
}
</tbody>
</table>
</div>
}
</div>
@code {
private List<Site> _sites = new();
private NotificationKpiResponse _kpi = new(string.Empty, true, null, 0, 0, 0, 0, null);
private string? _kpiError;
private IReadOnlyList<SiteNotificationKpiSnapshot> _perSite = Array.Empty<SiteNotificationKpiSnapshot>();
private string? _perSiteError;
private bool _loading;
protected override async Task OnInitializedAsync()
{
try
{
_sites = (await SiteRepository.GetAllSitesAsync()).ToList();
}
catch (Exception ex)
{
// Non-fatal — the per-site table falls back to raw site identifiers.
Logger.LogWarning(ex, "Failed to load sites for the KPI per-site breakdown.");
}
await RefreshAll();
}
private async Task RefreshAll()
{
_loading = true;
// Race-free despite both tasks mutating component fields: Blazor Server runs
// every continuation on the circuit's single-threaded synchronization context.
await Task.WhenAll(LoadGlobalKpis(), LoadPerSiteKpis());
_loading = false;
}
private async Task LoadGlobalKpis()
{
try
{
var response = await CommunicationService.GetNotificationKpisAsync(
new NotificationKpiRequest(Guid.NewGuid().ToString("N")));
if (response.Success)
{
_kpi = response;
_kpiError = null;
}
else
{
_kpiError = response.ErrorMessage ?? "KPI query failed.";
}
}
catch (Exception ex)
{
_kpiError = $"KPI query failed: {ex.Message}";
}
}
private async Task LoadPerSiteKpis()
{
try
{
var response = await CommunicationService.GetPerSiteNotificationKpisAsync(
new PerSiteNotificationKpiRequest(Guid.NewGuid().ToString("N")));
if (response.Success)
{
_perSite = response.Sites;
_perSiteError = null;
}
else
{
_perSiteError = response.ErrorMessage ?? "Per-site KPI query failed.";
}
}
catch (Exception ex)
{
_perSiteError = $"Per-site KPI query failed: {ex.Message}";
}
}
private string SiteName(string siteId) =>
_sites.FirstOrDefault(s => s.SiteIdentifier == siteId)?.Name ?? siteId;
private static string FormatAge(TimeSpan? age)
{
if (age == null) return "—";
var t = age.Value;
if (t.TotalSeconds < 60) return $"{(int)t.TotalSeconds}s";
if (t.TotalMinutes < 60) return $"{(int)t.TotalMinutes}m";
if (t.TotalHours < 24) return $"{(int)t.TotalHours}h";
return $"{(int)t.TotalDays}d";
}
}