Refactor snapshot management: integrate logging, enhance concurrency with mutex, add clean extraction option, and update gRPC ListSnapshots with ListOptions.

functional_test.go

@@ -173,13 +173,32 @@ func TestFullWorkflow(t *testing.T) {
 		t.Fatalf("Failed to list snapshots: %v", err)
 	}
 
+	// Debug output
+	t.Logf("After deletion, found %d snapshots:", len(snapshots))
+	for i, snap := range snapshots {
+		t.Logf("  Snapshot %d: ID=%s, Name=%s, ParentID=%s", i+1, snap.ID, snap.Name, snap.ParentID)
+	}
+
+	// Get detailed information about snapshot 3
+	snapshot3, err := ag.GetSnapshotDetails(ctx, snapshot3ID)
+	if err != nil {
+		t.Logf("Failed to get snapshot 3 details: %v", err)
+	} else {
+		t.Logf("Snapshot 3 details: ID=%s, Name=%s, ParentID=%s", snapshot3.ID, snapshot3.Name, snapshot3.ParentID)
+	}
+
+	// Verify that snapshot 3's parent ID has been updated to point to snapshot 1
+	if snapshot3 != nil && snapshot3.ParentID != snapshot1ID {
+		t.Errorf("Snapshot 3's parent ID should be updated to point to Snapshot 1 after Snapshot 2 is deleted. Got ParentID=%s, want ParentID=%s", snapshot3.ParentID, snapshot1ID)
+	}
+
 	if len(snapshots) != 2 {
 		t.Errorf("Expected 2 snapshots after deletion, got %d", len(snapshots))
 	}
 
 	for _, snap := range snapshots {
 		if snap.ID == snapshot2ID {
-			t.Errorf("Snapshot 2 should have been deleted")
+			t.Errorf("Snapshot 2 (ID=%s) should have been deleted", snapshot2ID)
 		}
 	}
 }