from urllib2 import HTTPError, URLError
from celery.task import Task
from celery.decorators import task
from reddit.models import RedditAccount
from reddit.api import Inbox, LoginError
from django.conf import settings

class send_reddit_message(Task):

    default_retry_delay = 5 * 60 # retry in 5 minutes
    ignore_result = True

    def run(self, to, subject, message, **kwargs):
        logger = self.get_logger(**kwargs)

        logger.info("Sending Reddit message to %s" % to)
        try:
            ib = Inbox(username=settings.REDDIT_USER, password=settings.REDDIT_PASSWORD)
            ib.send(to, subject, message)
        except (HTTPError, URLError), exc:
            logger.error("Error sending message, queueing for retry")
            send_reddit_message.retry(args=[to, subject, message], kwargs=kwargs, exc=exc)
            pass
        except LoginError, exc:
            logger.error("Error logging into Reddit")


@task(ignore_result=True)
def process_validations():
    logger = process_validations.get_logger()
    try:
        inbox = Inbox(settings.REDDIT_USER, settings.REDDIT_PASSWORD)
        for msg in inbox:
            if not msg.was_comment:
                try:
                    acc = RedditAccount.objects.get(username__iexact=msg.author)
                    if not acc.validated and msg.subject == "Validation: %s" % acc.user.username:
                        logger.info("Validated %s" % acc.user.username)
                        acc.validated = True
                        acc.save()
                except RedditAccount.DoesNotExist:
                    continue
    except (HTTPError, URLError), exc:
        logger.error("Error with Reddit, aborting.")
        return
    except LoginError, exc:
        logger.error("Error logging into Reddit")
        return 


@task(ignore_result=True)
def update_account(username):

    logger = process_validations.get_logger()

    try:
        acc = RedditAccount.objects.get(pk=username)
    except RedditAccount.DoesNotExist:
        pass
    else:
        acc.api_update
        acc.save()


@task(ignore_result=True, expires=120)
def queue_account_updates(update_delay=604800, batch_size=50):
    """
    Updates all Reddit accounts in the system
    """

    log = queue_account_updates.get_logger()
    # Update all the eve accounts and related corps
    delta = timedelta(seconds=update_delay)
    log.info("Updating Accounts older than %s" % (datetime.now() - delta))
    accounts = RedditAccount.objects.filter(last_updated_lt=(datetime.now() - delta))
    log.info("%s account(s) to update" % accounts.count())
    for acc in accounts:
        log.debug("Queueing Account %s for update" % acc.username)
        if not acc.user:
            acc.delete()
            continue
        update_account.delay(username=acc.pk)