import os
import celery
import raven
from raven.contrib.celery import register_signal, register_logger_signal
# from celery.schedules import crontab
from django.conf import settings

# set the default Django settings module for the 'celery' program.
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'university.settings')


class Celery(celery.Celery):

    def on_configure(self):
        client = raven.Client(settings.SENTRY_DSN)

        # register a custom filter to filter out duplicate logs
        register_logger_signal(client)

        # hook into the Celery error handler
        register_signal(client)


app = Celery('university')

# Using a string here means the worker doesn't have to serialize
# the configuration object to child processes.
# - namespace='CELERY' means all celery-related configuration keys
#   should have a `CELERY_` prefix.
app.config_from_object('django.conf:settings', namespace='CELERY')

# Load task modules from all registered Django app configs.
app.autodiscover_tasks()


@app.on_after_configure.connect
def setup_periodic_tasks(sender, **kwargs):
    pass
    # sender.add_periodic_task(10.0, debug_task.s(), name='add every 10')

    # Calls test('world') every 30 seconds
    # sender.add_periodic_task(30.0, debug_task.s('world'), expires=10)

    # Executes every Monday morning at 7:30 a.m.
    # sender.add_periodic_task(
    #    crontab(hour=7, minute=30, day_of_week=1),
    #    test.s('Happy Mondays!'),
    # )


@app.task(bind=True, name='debug_task')
def debug_task(self):
    print('Request: {0!r}'.format(self.request))