feat: send connection message when starting up

issue: N25B-150

main.py

@@ -1,18 +1,23 @@
 import sys
 import logging
-logging.
 
+import argparse
 import zmq
+import json
+import logging
+import hashlib
+import socket
+import time
 
 from src.audio_streaming import AudioStreaming
 from state import state
+from urlparse import urlparse
 
 
 def say(session, message):
     tts = session.service("ALTextToSpeech")
     tts.say(message)
 
-
 def listen_for_messages(session):
     context = zmq.Context()
     socket = context.socket(zmq.SUB)
@@ -23,6 +28,25 @@ def listen_for_messages(session):
     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 = {
+                    "event": "robot_connected",
+                    "id": state.__getattribute__("id"),
+                    "name": state.__getattribute__("name"),
+                    "port": state.__getattribute__("port")
+                }
+
+    connection_json = json.dumps(connection_data)
+    pub.send_string(connection_json)
+    print("Send data: ", connection_json)
+
+
     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
@@ -31,34 +55,71 @@ def listen_for_messages(session):
 
         if session: say(session, message)
 
-
 def get_session():
     if "--qi-url" not in sys.argv:
         logging.info("No Qi URL argument given. Running in stand-alone mode.")
-        return None
+        ip = resolve_local_ip()
+        port = -1
+        return None, ip, port
+    
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--qi-url", type=str, help="Qi URL argument")
+    parser.add_argument("--name", type=str, default="Robot without name", help="Optional robot name")
+    args = parser.parse_args()
+
+    name = args.name
+    parsed = urlparse(args.qi_url)
+    ip = parsed.hostname
+    port = parsed.port
+
+    # If URL uses localhost, get own ip instead
+    if ip in ("localhost", "127.0.0.1"):
+        ip = resolve_local_ip()
 
     try:
         import qi
     except ImportError:
         logging.info("Unable to import qi. Running in stand-alone mode.")
-        return None
+        return None, ip, port, name
 
     try:
         app = qi.Application()
         app.start()
-        return app.session
+        return app.session, ip, port, name
     except RuntimeError:
         logging.info("Unable to connect to the robot. Running in stand-alone mode.")
-        return None
+        return None, ip, port, name
 
 
+def resolve_local_ip():
+    """Return the actual local IP, not 127.0.0.1."""
+    try:
+        s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+        s.connect(("8.8.8.8", 80))  # Use a public IP just to resolve interface
+        ip = s.getsockname()[0]
+        s.close()
+        return ip
+    except Exception as e:
+        logging.warning("Could not resolve local IP: {}".format(e))
+        return "127.0.0.1"
+
 def main():
-    session = get_session()
+    session, ip, port, name = get_session()
 
-    audio_streamer = AudioStreaming()
-    audio_streamer.run()
+    # hash ip, port into id
+    id_source = "{}:{}".format(ip, port)
+    unique_id = hashlib.md5(id_source).hexdigest()
 
-    listen_for_messages(session)  # Runs indefinitely, until CTRL+C
+    print("created unique id: ", unique_id)
+
+    state.id = unique_id
+    state.port = port
+    state.ip = ip
+    state.name = name
+
+    logging.info("Session ID: {} (from {})".format(unique_id, id_source))
+
+    listen_for_messages(session)
 
 
 if __name__ == "__main__":

state.py

@@ -35,7 +35,7 @@ class State(object):
 
     def __getattribute__(self, name):
         # Enforce that the state is initialized before accessing any property (aside from the basic ones)
-        if name in ("initialize", "deinitialize", "is_initialized", "__dict__", "__class__"):
+        if name in ("initialize", "deinitialize", "is_initialized", "__dict__", "__class__", "id", "name", "ip", "port"):
             return object.__getattribute__(self, name)
 
         if not object.__getattribute__(self, "is_initialized"):