from . import serializers
from . import tasks

ACTIVITY_TYPES = [
    'Accept',
    'Add',
    'Announce',
    'Arrive',
    'Block',
    'Create',
    'Delete',
    'Dislike',
    'Flag',
    'Follow',
    'Ignore',
    'Invite',
    'Join',
    'Leave',
    'Like',
    'Listen',
    'Move',
    'Offer',
    'Question',
    'Reject',
    'Read',
    'Remove',
    'TentativeReject',
    'TentativeAccept',
    'Travel',
    'Undo',
    'Update',
    'View',
]


OBJECT_TYPES = [
    'Article',
    'Audio',
    'Collection',
    'Document',
    'Event',
    'Image',
    'Note',
    'OrderedCollection',
    'Page',
    'Place',
    'Profile',
    'Relationship',
    'Tombstone',
    'Video',
] + ACTIVITY_TYPES


def deliver(activity, on_behalf_of, to=[]):
    return tasks.send.delay(
        activity=activity,
        actor_id=on_behalf_of.pk,
        to=to
    )


def accept_follow(follow):
    serializer = serializers.AcceptFollowSerializer(follow)
    return deliver(
        serializer.data,
        to=[follow.actor.url],
        on_behalf_of=follow.target)