tasks.py

import vars
import sys
import json
import time
import signal

from celery import Celery
from flask_socketio import SocketIO

sys.path.append(vars.rabbitmq_agents_loc)
import rc_util

broker_url = vars.broker_url
celery = Celery('flask_user_reg', broker=broker_url)

socketio = SocketIO(message_queue=vars.message_queue)
timeout = 30

def gen_f(room):
    def callback(channel, method, properties, body):
        msg = json.loads(body)
        username = msg['username']

        if msg['success']:
            print(f'Account for {username} has been created.')
            send_msg('account ready', room)
        else:
            print(f"There's some issue while creating account for {username}")
            errmsg = msg.get('errmsg', [])
            for err in errmsg:
                print(err)
            socketio.emit('account error', errmsg, room= room)

        rc_util.rc_rmq.stop_consume()
        rc_util.rc_rmq.delete_queue()
    return callback

def send_msg(event, room):
    socketio.emit(event, room=room)

def timeout_handler(signum, frame):
    print("Process timeout, there's might some issue with agents")
    socketio.emit('account error', errmsg, room= room)
    rc_util.rc_rmq.stop_consume()
    rc_util.rc_rmq.delete_queue()

@celery.task
def celery_create_account(json, session):
    room = session
    username= json['username'] 
    email= json['email']
    fullname= json['fullname']
    reason= json['reason']
    aup= json['aup']
    queuename= rc_util.encode_name(username)

    print(time.strftime("%m-%d-%Y_%H:%M:%S") + '\tUser ' + username + ' added to queue')
    send_msg('creating account', room)
    print(username)
    rc_util.add_account(username, queuename, email, fullname, reason, aup)
    print('sent account info')
    print('Waiting for completion...')
    rc_util.consume(queuename, routing_key=f'complete.{queuename}', callback=gen_f(room))