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feat(notification-outbox): actor handler for per-site KPI requests

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This commit is contained in:
Joseph Doherty
2026-05-19 05:37:14 -04:00
parent adcab9dcfc
commit 1629a72093
2 changed files with 74 additions and 0 deletions
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32
src/ScadaLink.NotificationOutbox/NotificationOutboxActor.cs
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@@ -64,6 +64,7 @@ public class NotificationOutboxActor : ReceiveActor, IWithTimers
Receive<RetryNotificationRequest>(HandleRetry);
Receive<DiscardNotificationRequest>(HandleDiscard);
Receive<NotificationKpiRequest>(HandleKpiRequest);
Receive<PerSiteNotificationKpiRequest>(HandlePerSiteKpiRequest);
}
/// <summary>
@@ -609,6 +610,37 @@ public class NotificationOutboxActor : ReceiveActor, IWithTimers
snapshot.OldestPendingAge);
}
/// <summary>
/// Handles a per-site KPI request, computing the per-source-site outbox metrics with the
/// same stuck cutoff and delivered window as <see cref="HandleKpiRequest"/>.
/// </summary>
private void HandlePerSiteKpiRequest(PerSiteNotificationKpiRequest request)
{
var sender = Sender;
var now = DateTimeOffset.UtcNow;
var stuckCutoff = StuckCutoff(now);
var deliveredSince = now - _options.DeliveredKpiWindow;
ComputePerSiteKpisAsync(request.CorrelationId, stuckCutoff, deliveredSince).PipeTo(
sender,
success: response => response,
failure: ex => new PerSiteNotificationKpiResponse(
request.CorrelationId,
Success: false,
ErrorMessage: ex.GetBaseException().Message,
Sites: Array.Empty<SiteNotificationKpiSnapshot>()));
}
private async Task<PerSiteNotificationKpiResponse> ComputePerSiteKpisAsync(
string correlationId, DateTimeOffset stuckCutoff, DateTimeOffset deliveredSince)
{
using var scope = _serviceProvider.CreateScope();
var repository = scope.ServiceProvider.GetRequiredService<INotificationOutboxRepository>();
var sites = await repository.ComputePerSiteKpisAsync(stuckCutoff, deliveredSince);
return new PerSiteNotificationKpiResponse(correlationId, Success: true, ErrorMessage: null, sites);
}
/// <summary>
/// The instant before which a still-pending notification counts as stuck — <paramref name="now"/>
/// offset back by <see cref="NotificationOutboxOptions.StuckAgeThreshold"/>.