From f16aa030db3464a08ff655fe115c95c96a90c06b Mon Sep 17 00:00:00 2001
From: Naeel <naeel@kube5s.ru>
Date: Sun, 26 Apr 2026 10:57:29 +0300
Subject: [PATCH] layer1: log namespace manager summary

---
 .../2026-04-26-namespace-manager-step46.md    | 19 +++++++++++++++++++
 pkg/utils/namespace_manager.go                | 12 ++++++++++++
 pkg/utils/namespace_manager_test.go           |  4 ++++
 3 files changed, 35 insertions(+)
 create mode 100644 doc/thinking/2026-04-26-namespace-manager-step46.md

diff --git a/doc/thinking/2026-04-26-namespace-manager-step46.md b/doc/thinking/2026-04-26-namespace-manager-step46.md
new file mode 100644
index 00000000..62f95b90
--- /dev/null
+++ b/doc/thinking/2026-04-26-namespace-manager-step46.md
@@ -0,0 +1,19 @@
+# 2026-04-26 — NamespaceManager rewrite, step 46
+
+## Цель шага
+
+Начать реальное использование `NamespaceManager.Summary()` в orchestration layer.
+
+## Что меняем
+
+1. Добавляем helper `LogNamespaceManagerSummary()`.
+2. `PrepareManagedNamespaceWatcher()` пишет summary после bootstrap.
+3. В лог попадают:
+   - общее число namespace-ов;
+   - subscriber-ы;
+   - phase counts.
+
+## Что НЕ меняем
+
+- не экспортируем summary наружу через HTTP;
+- не меняем runtime behavior watcher-ов.
\ No newline at end of file
diff --git a/pkg/utils/namespace_manager.go b/pkg/utils/namespace_manager.go
index a057655b..e9287eff 100644
--- a/pkg/utils/namespace_manager.go
+++ b/pkg/utils/namespace_manager.go
@@ -113,9 +113,21 @@ func NewWatcherNamespaceManager(ctx context.Context, namespaces []string, source
 func PrepareManagedNamespaceWatcher(ctx context.Context, logger *zap.Logger, component string, namespaces []string, removalStrategy NamespaceRemovalStrategy, subscriber NamespaceSubscriber) (NamespaceManager, k8sCache.ResourceEventHandlerFuncs, error) {
 	manager, err := NewWatcherNamespaceManager(ctx, namespaces, NamespaceSourceEnv, time.Now().UTC(), subscriber)
 	handlers := NewNamespaceWatcherEventHandlers(ctx, logger, component, manager, removalStrategy)
+	LogNamespaceManagerSummary(logger, component+": prepared namespace manager", manager.Summary())
 	return manager, handlers, err
 }
 
+func LogNamespaceManagerSummary(logger *zap.Logger, message string, summary NamespaceManagerSummary) {
+	if logger == nil {
+		return
+	}
+	logger.Info(message,
+		zap.Int("total_namespaces", summary.TotalNamespaces),
+		zap.Any("phase_counts", summary.PhaseCounts),
+		zap.Strings("subscribers", summary.Subscribers),
+	)
+}
+
 func NamespaceBecameUnmanaged(oldNamespace *corev1.Namespace, newNamespace *corev1.Namespace) bool {
 	if oldNamespace == nil || newNamespace == nil {
 		return false
diff --git a/pkg/utils/namespace_manager_test.go b/pkg/utils/namespace_manager_test.go
index b276aca8..0822a043 100644
--- a/pkg/utils/namespace_manager_test.go
+++ b/pkg/utils/namespace_manager_test.go
@@ -475,6 +475,10 @@ func TestNamespaceManagerSummary(t *testing.T) {
 	}
 }
 
+func TestLogNamespaceManagerSummaryWithNilLogger(t *testing.T) {
+	LogNamespaceManagerSummary(nil, "ignored", NamespaceManagerSummary{TotalNamespaces: 1})
+}
+
 func TestNamespaceManagerDispatchAdd(t *testing.T) {
 	manager := NewNamespaceManager()
 	manager.Upsert(NamespaceEvent{Type: NamespaceEventAdd, Name: "tenant-a", Source: NamespaceSourceWatcher})