from django.conf import settings
import logging
from datetime import datetime, timedelta
from celery.decorators import task
from eve_proxy.models import CachedDocument

@task(ignore_result=True)
def clear_stale_cache(cache_extension=0):
    log = clear_stale_cache.get_logger()

    time = datetime.utcnow() - timedelta(seconds=cache_extension)
    objs = CachedDocument.objects.filter(cached_until__lt=time)
    log.info('Removing %s stale cache documents' % objs.count())
    objs.delete()


@task(ignore_result=True)
def clear_old_logs():
    log = clear_old_logs.get_logger()

    time = datetime.utcnow() - timedelta(days=settings.EVE_PROXY_KEEP_LOGS)
    objs = ApiAccessLog.objects.filter(time_access__lt=time)
    log.info('Removing %s old access logs' % objs.count())
    objs.delete()