From 07eeac8bebebb14563bd699e20dc268490f20045 Mon Sep 17 00:00:00 2001
From: Nicu Hodos <nicu@hodos.ro>
Date: Sun, 5 Oct 2025 11:35:55 +0200
Subject: [PATCH] add support for using lambdas with captures as
 factory_builder functions

---
 library.json | 2 +-
 src/esp.h    | 3 +--
 src/ha.h     | 5 +++++
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/library.json b/library.json
index c170cb0..0a4a586 100644
--- a/library.json
+++ b/library.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://raw.githubusercontent.com/platformio/platformio-core/develop/platformio/assets/schema/library.json",
   "name": "ha-mqtt",
-  "version": "1.12.0",
+  "version": "1.13.0",
   "description": "Home Assistant classes for integration with MQTT auto discovery",
   "repository": {
     "type": "git",
diff --git a/src/esp.h b/src/esp.h
index 976785f..4753eca 100644
--- a/src/esp.h
+++ b/src/esp.h
@@ -42,8 +42,7 @@ namespace HaESP {
 
     template <class T>
     Builder<T>& heapStats(Builder<T>& builder) {
-        auto heap = new Sensor{ "Heap fragmentation", "heap_fragmentation" };
-        builder.addDiagnostic(Builder<Sensor>::instance(heap)
+        builder.addDiagnostic(Builder<Sensor>::instance(new Sensor{ "Heap fragmentation", "heap_fragmentation" })
             .withUnitMeasure("%")
             .withPrecision(0)
             .withValueTemplate("{{ value_json.fragmentation }}")
diff --git a/src/ha.h b/src/ha.h
index c07fa31..770fdbf 100644
--- a/src/ha.h
+++ b/src/ha.h
@@ -401,6 +401,7 @@ namespace Ha {
 
     template <class T>
     struct Builder : AbstractBuilder {
+        using factory_builder = std::function<Builder&(Builder&)>;
         T* cmp;
 
         Builder(T* cmp) : AbstractBuilder(), cmp(cmp) {}
@@ -496,6 +497,10 @@ namespace Ha {
             return factoryBuilder(*this);
         }
 
+        Builder& addPreconfigured(factory_builder factoryBuilder) {
+            return factoryBuilder(*this);
+        }
+
         Builder& addConfiguration(Component* c) {
             c->entityCategory = "config";
             return addSecondary(c);