feat: made ping system for automatic disconnection

events, and fixed some issues.

ref: N25B-150

main.py

@@ -24,15 +24,10 @@ def listen_for_messages(session):
     socket.connect("tcp://localhost:5556")
     socket.setsockopt_string(zmq.SUBSCRIBE, u"")  # u because Python 2 shenanigans
 
-    poller = zmq.Poller()
-    poller.register(socket, zmq.POLLIN)
-
-    logging.info("Listening for messages")
-
     # Let the CB know we're connected.
     pub = context.socket(zmq.PUB)
     pub.bind("tcp://*:5555")
-
+    
     time.sleep(1)
     print("Now attempting to send connection data to CB.")
     connection_data = {
@@ -45,16 +40,42 @@ def listen_for_messages(session):
     connection_json = json.dumps(connection_data)
     pub.send_string(connection_json)
     print("Send data: ", connection_json)
+    listening_loop(socket, pub)
 
+def listening_loop(socket, pub):
+
+    print("Entered listening loop.")
+    poller = zmq.Poller()
+    poller.register(socket, zmq.POLLIN)
+
+    logging.info("Listening for messages")
 
     while not state.exit_event.is_set():
         if not poller.poll(200): continue  # At most 200 ms delay after CTRL+C
         # We now know there's a message waiting for us
         message = socket.recv_string()
         logging.debug("Received message: {}".format(message))
+        handle_message(message, pub)
 
-        if session: say(session, message)
+def handle_message(msg, pub):
+    """
+    Parse the message and act accordingly to conditional statements.
+    """
+    msgs = msg.split(",") # Let's split the attributes
+    if msgs[0] == "ping": 
+            # return ping 
+            ping_data = {
+                    "event": "ping",
+                    "id": state.__getattribute__("id"),
+                }
+            ping_json = json.dumps(ping_data)
+            pub.send_string(ping_json)
+            logging.debug("Returned ping.")
+            return
 
+    # Other if statements such as `if msgs[0] == "say"`
+    return
+    
 def get_session():
     if "--qi-url" not in sys.argv:
         logging.info("No Qi URL argument given. Running in stand-alone mode.")
@@ -118,10 +139,8 @@ def main():
     state.name = name
 
     logging.info("Session ID: {} (from {})".format(unique_id, id_source))
-
     listen_for_messages(session)
 
-
 if __name__ == "__main__":
     try:
         state.initialize()