From 962300712fc1d82abde307b3a8c0fb8868668515 Mon Sep 17 00:00:00 2001
From: Nicu Hodos <nicu@hodos.ro>
Date: Fri, 10 Oct 2025 18:28:27 +0200
Subject: [PATCH] use configTopic as a temporary object

---
 src/ha.h | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/ha.h b/src/ha.h
index 8ebbc6b..ad94e11 100644
--- a/src/ha.h
+++ b/src/ha.h
@@ -96,11 +96,15 @@ namespace Ha {
             char message[JSON_SIZE] = {};
             serializeJson(jsonDoc, message);
 
+            auto configTopic = buildConfigTopic();
             publisher(configTopic, message);
+            delete configTopic;
         }
 
         void publishCleanupConfig() {
+            auto configTopic = buildConfigTopic();
             publisher(configTopic, "");
+            delete configTopic;
         }
 
         void toJson(JsonDocument& jsonDoc) {
@@ -119,11 +123,8 @@ namespace Ha {
             jsonDoc["name"] = name;
            
             buildUniqueId(jsonDoc);
-            buildConfigTopic();
         }
     private:
-        char configTopic[TOPIC_SIZE] = {};
-
         void buildUniqueId(JsonDocument& jsonDoc) {
             char uniqueId[50];
             if (multiValueComponent && deviceClass) {
@@ -134,12 +135,14 @@ namespace Ha {
             jsonDoc["unique_id"] = uniqueId;
         }
 
-        void buildConfigTopic() {
+        const char* buildConfigTopic() {
+            char* configTopic = new char[TOPIC_SIZE];
             if (multiValueComponent && deviceClass) {
-                snprintf(configTopic, sizeof(configTopic), CONFIG_TOPIC"_%s""/config", type, deviceClass, id);
+                snprintf(configTopic, TOPIC_SIZE, CONFIG_TOPIC"_%s""/config", type, deviceClass, id);
             } else {
-                snprintf(configTopic, sizeof(configTopic), CONFIG_TOPIC"/config", type, id);
+                snprintf(configTopic, TOPIC_SIZE, CONFIG_TOPIC"/config", type, id);
             }
+            return configTopic;
         }
     };