layer1: derive namespace phases step 10

doc/thinking/2026-04-26-namespace-manager-step10.md

@@ -0,0 +1,22 @@
+# 2026-04-26 — NamespaceManager rewrite, step 10
+
+## Цель шага
+
+Научить skeleton manager выводить общую phase namespace-а из part states.
+
+## Что меняем
+
+1. Добавляем константы состояний частей:
+   - `registering`
+   - `active`
+   - `failed`
+2. После `MarkPartState()` manager пересчитывает общую phase namespace-а.
+3. Добавляем unit tests на переходы:
+   - registering -> active
+   - failed -> NamespacePhaseFailed
+
+## Что НЕ меняем
+
+- не запускаем реальный reconcile loop;
+- не вызываем subscriber-ов автоматически;
+- не подключаем manager к runtime.

pkg/utils/namespace_manager.go

@@ -152,6 +152,7 @@ func (m *inMemoryNamespaceManager) MarkPartState(namespace string, part string,
 		state.UpdatedAt = time.Now().UTC()
 	}
 	record.RegisteredParts[part] = state
+	record.Phase = deriveNamespacePhase(record)
 	record.UpdatedAt = state.UpdatedAt
 	m.records[namespace] = record
 	return record.Clone(), true
@@ -166,4 +167,30 @@ func (m *inMemoryNamespaceManager) Remove(name string) bool {
 	}
 	delete(m.records, name)
 	return true
+}
+
+func deriveNamespacePhase(record NamespaceRecord) NamespacePhase {
+	if len(record.RegisteredParts) == 0 {
+		return record.Phase
+	}
+
+	hasRegistering := false
+	for _, part := range record.RegisteredParts {
+		switch part.State {
+		case NamespacePartStateFailed:
+			return NamespacePhaseFailed
+		case NamespacePartStateRegistering:
+			hasRegistering = true
+		case NamespacePartStateActive:
+			continue
+		default:
+			hasRegistering = true
+		}
+	}
+
+	if hasRegistering {
+		return NamespacePhaseRegistering
+	}
+
+	return NamespacePhaseActive
 }

pkg/utils/namespace_manager_model.go

@@ -2,6 +2,12 @@ package utils
 
 import "time"
 
+const (
+	NamespacePartStateRegistering string = "registering"
+	NamespacePartStateActive      string = "active"
+	NamespacePartStateFailed      string = "failed"
+)
+
 type NamespacePhase string
 
 const (

pkg/utils/namespace_manager_test.go

@@ -53,13 +53,16 @@ func TestNamespaceManagerMarkPartState(t *testing.T) {
 	manager := NewNamespaceManager()
 	manager.Upsert(NamespaceEvent{Type: NamespaceEventAdd, Name: "tenant-a", Source: NamespaceSourceWatcher})
 
-	record, ok := manager.MarkPartState("tenant-a", "router", NamespacePartState{State: "active"})
+	record, ok := manager.MarkPartState("tenant-a", "router", NamespacePartState{State: NamespacePartStateActive})
 	if !ok {
 		t.Fatalf("expected mark part state to succeed")
 	}
-	if record.RegisteredParts["router"].State != "active" {
+	if record.RegisteredParts["router"].State != NamespacePartStateActive {
 		t.Fatalf("expected router part state to be stored")
 	}
+	if record.Phase != NamespacePhaseActive {
+		t.Fatalf("expected phase to become active, got %s", record.Phase)
+	}
 }
 
 func TestNamespaceManagerRemove(t *testing.T) {
@@ -85,7 +88,7 @@ func TestNamespaceManagerSnapshotRecordsReturnsCopies(t *testing.T) {
 		Source: NamespaceSourceWatcher,
 		Labels: map[string]string{"fission.io/managed": "true"},
 	})
-	_, _ = manager.MarkPartState("tenant-a", "router", NamespacePartState{State: "active"})
+	_, _ = manager.MarkPartState("tenant-a", "router", NamespacePartState{State: NamespacePartStateActive})
 
 	records := manager.SnapshotRecords()
 	records[0].Labels["fission.io/managed"] = "false"
@@ -98,7 +101,7 @@ func TestNamespaceManagerSnapshotRecordsReturnsCopies(t *testing.T) {
 	if record.Labels["fission.io/managed"] != "true" {
 		t.Fatalf("expected snapshot records to be detached copies")
 	}
-	if record.RegisteredParts["router"].State != "active" {
+	if record.RegisteredParts["router"].State != NamespacePartStateActive {
 		t.Fatalf("expected part states to be detached copies")
 	}
 }
@@ -113,4 +116,25 @@ func TestNamespaceManagerSubscribers(t *testing.T) {
 	if !reflect.DeepEqual(expected, manager.SnapshotSubscribers()) {
 		t.Fatalf("expected subscribers %v, got %v", expected, manager.SnapshotSubscribers())
 	}
+}
+
+func TestNamespaceManagerMarkPartStateDerivesPhase(t *testing.T) {
+	manager := NewNamespaceManager()
+	manager.Upsert(NamespaceEvent{Type: NamespaceEventAdd, Name: "tenant-a", Source: NamespaceSourceWatcher})
+
+	record, ok := manager.MarkPartState("tenant-a", "router", NamespacePartState{State: NamespacePartStateRegistering})
+	if !ok {
+		t.Fatalf("expected registering state update to succeed")
+	}
+	if record.Phase != NamespacePhaseRegistering {
+		t.Fatalf("expected phase registering, got %s", record.Phase)
+	}
+
+	record, ok = manager.MarkPartState("tenant-a", "router", NamespacePartState{State: NamespacePartStateFailed})
+	if !ok {
+		t.Fatalf("expected failed state update to succeed")
+	}
+	if record.Phase != NamespacePhaseFailed {
+		t.Fatalf("expected phase failed, got %s", record.Phase)
+	}
 }