Trigger alarm if door is open on armed

src/main.cpp

@@ -46,6 +46,7 @@ void reconnect()
         {
             Serial.println("connected");
             client.subscribe("door/lock");
+            client.subscribe("alarm/state");
         }
         else
         {
@@ -73,11 +74,33 @@ void callback(char* topic, byte* payload, unsigned int length) {
     }
     Serial.println();
 
-    if (doc["deviceId"] == deviceId && doc["lock"] == true) {
-        digitalWrite(RELAY_ACTIVATION_PIN, HIGH);   // Turn the relay on
-    } else {
-        digitalWrite(RELAY_ACTIVATION_PIN, LOW);  // Turn the relay off
+    if (strcmp(topic, "door/lock") == 0) 
+    {
+        if (doc["deviceId"] == deviceId && doc["lock"] == true) {
+            digitalWrite(RELAY_ACTIVATION_PIN, HIGH);
+        } else {
+            digitalWrite(RELAY_ACTIVATION_PIN, LOW);
+        }
+    }    
+    else if (strcmp(topic, "alarm/state") == 0)
+    {
+        if (strcmp(doc["status"], "Armed") == 0)
+        {
+            if (bool reed = digitalRead(REED_ACTIVATION_PIN) == 1)
+            {
+                DynamicJsonDocument doc(1024);
+
+                doc["deviceId"] = deviceId;
+                doc["open"] = reed;
+
+                char buffer[1024];
+                size_t n = serializeJson(doc, buffer);
+                
+                client.publish("door/status", buffer, n);
+            }   
+        }
     }
+    
 
 }
 
@@ -98,7 +121,7 @@ bool lastReed = 0;
 
 void loop()
 {
-    bool reed = !digitalRead(REED_ACTIVATION_PIN);
+    bool reed = digitalRead(REED_ACTIVATION_PIN);
     
     if (reed != lastReed)
     {