# -*- coding: utf-8 -*-
"""Simple example demonstrating the use of the socket monitoring feature."""

# This file is part of pyzmq.
#
# Distributed under the terms of the New BSD License. The full
# license is in the file COPYING.BSD, distributed as part of this
# software.
from __future__ import print_function

__author__ = 'Guido Goldstein'

import json
import os
import struct
import sys
import threading
import time

import zmq
from zmq.utils.monitor import recv_monitor_message

line = lambda : print('-' * 40)

def logger(monitor):
    done = False
    while monitor.poll(timeout=5000):
        evt = recv_monitor_message(monitor)
        print(json.dumps(evt, indent=1))
        if evt['event'] == zmq.EVENT_MONITOR_STOPPED:
            break
    print()
    print("Logger done!")
    monitor.close()

print("libzmq-%s" % zmq.zmq_version())
if zmq.zmq_version_info() < (4,0):
    raise RuntimeError("monitoring in libzmq version < 4.0 is not supported")

print("Event names:")
for name in dir(zmq):
    if name.startswith('EVENT_'):
        print("%21s : %4i" % (name, getattr(zmq, name)))


ctx = zmq.Context().instance()
rep = ctx.socket(zmq.REP)
req = ctx.socket(zmq.REQ)

monitor = req.get_monitor_socket()

t = threading.Thread(target=logger, args=(monitor,))
t.start()

line()
print("bind req")
req.bind("tcp://127.0.0.1:6666")
req.bind("tcp://127.0.0.1:6667")
time.sleep(1)

line()
print("connect rep")
rep.connect("tcp://127.0.0.1:6667")
time.sleep(0.2)
rep.connect("tcp://127.0.0.1:6666")
time.sleep(1)

line()
print("disconnect rep")
rep.disconnect("tcp://127.0.0.1:6667")
time.sleep(1)
rep.disconnect("tcp://127.0.0.1:6666")
time.sleep(1)

line()
print("close rep")
rep.close()
time.sleep(1)

line()
print("close req")
req.close()
time.sleep(1)

line()
print("joining")
t.join()

print("END")
ctx.term()