from __future__ import absolute_import

from postmonkey import PostMonkey, MailChimpException
from django.core.management.base import BaseCommand
from django.conf import settings

import logging

from zerver.lib.queue import SimpleQueueClient

class Command(BaseCommand):
    pm = PostMonkey(settings.MAILCHIMP_API_KEY, timeout=10)

    def subscribe(self, ch, method, properties, data):
        try:
            self.pm.listSubscribe(
                    id=settings.ZULIP_FRIENDS_LIST_ID,
                    email_address=data['EMAIL'],
                    merge_vars=data['merge_vars'],
                    double_optin=False,
                    send_welcome=False)
        except MailChimpException, e:
            if e.code == 214:
                logging.warning("Attempted to sign up already existing email to list: %s" % (data['EMAIL'],))
            else:
                raise e

    def handle(self, *args, **options):
        q = SimpleQueueClient()
        q.register_json_consumer("signups", self.subscribe)
        q.start_consuming()