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scadalink-design/src/ScadaLink.AuditLog/Site/Telemetry/ISiteStreamAuditClient.cs

43 lines
2.1 KiB
C#

using ScadaLink.Communication.Grpc;
namespace ScadaLink.AuditLog.Site.Telemetry;
/// <summary>
/// Mockable abstraction over the central site-audit push surface that
/// <see cref="SiteAuditTelemetryActor"/> uses to forward <see cref="AuditEventBatch"/>
/// payloads. The production implementation is
/// <see cref="ClusterClientSiteAuditClient"/> — a ClusterClient-based client,
/// wired in the Host for site roles, that forwards batches to central via the
/// site's <c>SiteCommunicationActor</c>. Unit tests substitute via NSubstitute
/// against this interface so the actor never needs a live transport.
/// </summary>
public interface ISiteStreamAuditClient
{
/// <summary>
/// Forwards <paramref name="batch"/> to the central audit-ingest path. The
/// returned <see cref="IngestAck"/> carries the <c>accepted_event_ids</c>
/// the actor will flip to
/// <see cref="ScadaLink.Commons.Types.Enums.AuditForwardState.Forwarded"/>
/// in the site SQLite queue.
/// </summary>
Task<IngestAck> IngestAuditEventsAsync(AuditEventBatch batch, CancellationToken ct);
/// <summary>
/// Forwards the combined <see cref="CachedTelemetryBatch"/> (Audit Log #23)
/// to the central cached-telemetry ingest path. Each packet carries both the
/// audit row and the operational <c>SiteCalls</c> upsert; central writes both
/// in a single MS SQL transaction. Returns the same <see cref="IngestAck"/>
/// shape as <see cref="IngestAuditEventsAsync"/> so the site-side forwarder
/// can flip the underlying audit rows to
/// <see cref="ScadaLink.Commons.Types.Enums.AuditForwardState.Forwarded"/>
/// once central has acknowledged them.
/// </summary>
/// <remarks>
/// The production <see cref="ClusterClientSiteAuditClient"/> forwards over
/// the ClusterClient transport; the <see cref="NoOpSiteStreamAuditClient"/>
/// DI default (used by central and test composition roots) returns an empty
/// ack so no rows are flipped.
/// </remarks>
Task<IngestAck> IngestCachedTelemetryAsync(CachedTelemetryBatch batch, CancellationToken ct);
}