empty list of components, it is not needed after the config has been

published on MQTT

src/list.h

@@ -13,7 +13,7 @@ struct List {
 
     void add(T* t) {
         Container* c = new Container{t};
-        first == nullptr ? first = c : last->next = c;
+        isEmpty() ? first = c : last->next = c;
         last = c;
     }
 
@@ -33,4 +33,8 @@ struct List {
         first = last = nullptr;
     }
 
+    bool isEmpty() {
+        return first == nullptr;
+    }
+
 };

src/mqtt.h

@@ -27,11 +27,10 @@ namespace Mqtt {
     }
 
     void publishInit() {
-        static bool firstTime = true;
+        if (!Component::components.isEmpty()) {
-        if (firstTime) {
             Component::components.forEach([](Component* c) { c->publishConfig(); });
+            Component::components.empty();
             HaESP::enableSensors();
-            firstTime = false;
         }
     }
 

test/native/test_list/main.cpp

@@ -30,6 +30,7 @@ void test_empty(void) {
     list.empty();
     TEST_ASSERT_EQUAL_PTR(nullptr, list.first);
     TEST_ASSERT_EQUAL_PTR(list.first, list.last);
+    TEST_ASSERT_TRUE(list.isEmpty());
 }
 
 int main(int argc, char **argv) {