feature: Observability: Prometheus Metrics and Grafana

VigilCareClinicalAPI/Sepsis/SirsDetector.cs

@@ -1,5 +1,6 @@
 using System.Text.Json;
 using Microsoft.EntityFrameworkCore;
+using Serilog.Context;
 using StackExchange.Redis;
 
 public class SirsDetector
@@ -12,15 +13,18 @@ public class SirsDetector
     private readonly IConnectionMultiplexer _redis;
     private readonly IServiceProvider _services;
     private readonly ILogger<SirsDetector> _logger;
+    private readonly ClinicalMetrics _metrics;
 
     public SirsDetector(
         IConnectionMultiplexer redis,
         IServiceProvider services,
-        ILogger<SirsDetector> logger)
+        ILogger<SirsDetector> logger,
+        ClinicalMetrics metrics)
     {
         _redis = redis;
         _services = services;
         _logger = logger;
+        _metrics = metrics;
     }
 
     public async Task<SirsResult> ProcessObservationAsync(
@@ -151,10 +155,18 @@ public class SirsDetector
         await db.SaveChangesAsync(ct);
         await tx.CommitAsync(ct);
 
-        _logger.LogWarning(
-            "SEPSIS_WARNING alert {AlertId} created for encounter {EncounterId} " +
-            "— {Active}/4 SIRS criteria active",
-            alertId, encounterId, activeCount);
+        _metrics.SirsDetectionsTotal.Inc();
+        _metrics.ClinicalAlertsTotal
+            .WithLabels(AlertType.SepsisWarning.ToDbString(), AlertSeverity.Critical.ToDbString())
+            .Inc();
+
+        using (LogContext.PushProperty("EncounterId", encounterId))
+        using (LogContext.PushProperty("PatientId", patientId))
+        {
+            _logger.LogWarning(
+                "SEPSIS_WARNING created. ActiveCriteriaCount={Count} AlertId={AlertId}",
+                activeCount, alertId);
+        }
 
         return true;
     }