import zmq
import sys
import time

port = "5556"
if len(sys.argv) > 1:
    port = sys.argv[1]
    int(port)

# Make a context which we use to make sockets from
context = zmq.Context()
# Make a new socket. We want to publish on this socket.
socket = context.socket(zmq.PUB)
# Bind the socket (inside our program) to a port (on our machine)
# We can now send messages
socket.bind(f"tcp://*:{port}")

topic = "TIME"
while True:
    # Time to publish the latest time!
    messagedata = time.ctime()
    # Note the use of XXX_string here;
    # the non-_stringy methods only work with bytes.
    socket.send_string(f"{topic};{messagedata}")
    print(f"Published topic {topic}: {messagedata}")
    time.sleep(1)