Refactor and POLL method

util.cpp

@@ -34,24 +34,30 @@ Response sendToHost(String content) {
 */
 Response regDevice(String name) {
   Response response = sendToHost("REG " + name);
-  if (!response.success || (response.content == ACCESS_DENINED)) {
+  if (response.content == ACCESS_DENINED) {
     response.success = false;
   }
   return response;
 }
 
 /* Poll Update
-   Command: "POLL [Device Name] [Access TOKEN] [Last status] [Optional Content]"
+   Command: "POLL [Access TOKEN] [Last status] [Optional Content]"
    Response:
-      Pool success:          "[New Status]"
+      poll success:          "[New Status]"
       Access Denined:        "Access Denined"
    Comment:
       Poll new command from server.
 */
-Response pollUpdate(PoolContent poolContent) {
-  Response response = sendToHost("POLL " + poolContent.toString());
-  if (!response.success || (response.content == ACCESS_DENINED)) {
-    response.success = false;
+PollResponse pollUpdate(PollContent pollContent) {
+  PollResponse pollResponse;
+  pollResponse.response = sendToHost("POLL " + pollContent.toString());
+  if (pollResponse.response.content == ACCESS_DENINED) {
+    pollResponse.response.success = false;
+  } else {
+    if (pollContent.lastStatus != pollResponse.response.content) {
+      pollResponse.changeStatus = true;
+      pollResponse.newStatus = pollResponse.response.content;
+    }
   }
-  return response;
+  return pollResponse;
 }

util.h

@@ -8,8 +8,8 @@
 #include "config.h"
 
 struct Response{
-  bool success;
-  String content;
+  bool success = false;
+  String content = "";
 };
 
 String appendHashToString(String content, String authString);
@@ -19,18 +19,22 @@ Response sendToHost(String content);
 
 Response regDevice(String name);
 
-struct PoolContent{
-  String deviceName = "";
+struct PollContent{
   String accessToken = "";
   String lastStatus = "";
   String optional = "";
   String toString(){
-    return deviceName  + " " +
-           accessToken + " " +
+    return accessToken + " " +
            lastStatus  + " " +
            optional;
   }
 };
 
+struct PollResponse{
+  Response response;
+  bool changeStatus = false;
+  String newStatus = "";
+};
+PollResponse pollUpdate(PollContent poolContent);
 
 #endif