save progress

src/Scanner/StellaOps.Scanner.Worker/Metrics/ScanMetricsCollector.cs

@@ -7,6 +7,7 @@
 
 using System.Diagnostics;
 using Microsoft.Extensions.Logging;
+using StellaOps.Determinism.Abstractions;
 using StellaOps.Scanner.Storage.Models;
 using StellaOps.Scanner.Storage.Repositories;
 
@@ -20,6 +21,8 @@ public sealed class ScanMetricsCollector : IDisposable
 {
     private readonly IScanMetricsRepository _repository;
     private readonly ILogger<ScanMetricsCollector> _logger;
+    private readonly TimeProvider _timeProvider;
+    private readonly IGuidProvider _guidProvider;
 
     private readonly Guid _scanId;
     private readonly Guid _tenantId;
@@ -58,7 +61,9 @@ public sealed class ScanMetricsCollector : IDisposable
         Guid tenantId,
         string artifactDigest,
         string artifactType,
-        string scannerVersion)
+        string scannerVersion,
+        TimeProvider? timeProvider = null,
+        IGuidProvider? guidProvider = null)
     {
         _repository = repository ?? throw new ArgumentNullException(nameof(repository));
         _logger = logger ?? throw new ArgumentNullException(nameof(logger));
@@ -67,7 +72,9 @@ public sealed class ScanMetricsCollector : IDisposable
         _artifactDigest = artifactDigest ?? throw new ArgumentNullException(nameof(artifactDigest));
         _artifactType = artifactType ?? throw new ArgumentNullException(nameof(artifactType));
         _scannerVersion = scannerVersion ?? throw new ArgumentNullException(nameof(scannerVersion));
-        _metricsId = Guid.NewGuid();
+        _timeProvider = timeProvider ?? TimeProvider.System;
+        _guidProvider = guidProvider ?? SystemGuidProvider.Instance;
+        _metricsId = _guidProvider.NewGuid();
     }
 
     /// <summary>
@@ -80,7 +87,7 @@ public sealed class ScanMetricsCollector : IDisposable
     /// </summary>
     public void Start()
     {
-        _startedAt = DateTimeOffset.UtcNow;
+        _startedAt = _timeProvider.GetUtcNow();
         _totalStopwatch.Start();
         _logger.LogDebug("Started metrics collection for scan {ScanId}", _scanId);
     }
@@ -98,7 +105,7 @@ public sealed class ScanMetricsCollector : IDisposable
                 return NoOpDisposable.Instance;
             }
 
-            var tracker = new PhaseTracker(this, phaseName, DateTimeOffset.UtcNow);
+            var tracker = new PhaseTracker(this, phaseName, _timeProvider.GetUtcNow());
             _phases[phaseName] = tracker;
             _logger.LogDebug("Started phase {PhaseName} for scan {ScanId}", phaseName, _scanId);
             return tracker;
@@ -138,7 +145,7 @@ public sealed class ScanMetricsCollector : IDisposable
 
             _phases.Remove(phaseName);
 
-            var finishedAt = DateTimeOffset.UtcNow;
+            var finishedAt = _timeProvider.GetUtcNow();
             var phase = new ExecutionPhase
             {
                 MetricsId = _metricsId,
@@ -214,7 +221,7 @@ public sealed class ScanMetricsCollector : IDisposable
     public async Task CompleteAsync(CancellationToken cancellationToken = default)
     {
         _totalStopwatch.Stop();
-        var finishedAt = DateTimeOffset.UtcNow;
+        var finishedAt = _timeProvider.GetUtcNow();
 
         // Calculate phase timings
         var phases = BuildPhaseTimings();