import txamqp
from twisted.internet.protocol import ClientCreator
from txamqp.protocol import AMQClient
from twisted.internet import defer, reactor
from txamqp.content import Content
from txamqp.client import TwistedDelegate
import time


def receive(msg, queue):
    print('receiving: %s' % msg.content.body)
    if msg.content.body == '9':
        reactor.stop()
    else:
        queue.get().addCallback(receive, queue)


@defer.inlineCallbacks
def authenticate(client, username, password):
    yield client.authenticate(username, password)
    channel = yield client.channel(1)
    yield channel.channel_open()

    #subscribe
    yield channel.queue_declare(queue='queue', auto_delete=True)
    reply = yield channel.basic_consume(queue='queue')
    queue = yield client.queue(reply.consumer_tag)
    queue.get().addCallback(receive, queue)

    # send messages
    for i in range(10):
        content = Content(str(i))
        channel.basic_publish(routing_key='queue', content=content)
        print('sending: %s' % i)


if __name__ == '__main__':
    import sys
    if len(sys.argv) != 7:
        print "%s host port vhost username password path_to_spec" % sys.argv[0]
        sys.exit(1)

    host = sys.argv[1]
    port = int(sys.argv[2])
    vhost = sys.argv[3]
    username = sys.argv[4]
    password = sys.argv[5]
    specFile = sys.argv[6]

    spec = txamqp.spec.load(specFile)

    delegate = TwistedDelegate()

    d = ClientCreator(reactor, AMQClient, delegate, vhost,
        spec).connectTCP(host, port)
    d.addCallback(authenticate, username, password)
    reactor.run()