import random
import string

from kubernetes import client

from ...common import utils


def random_string(size=9, chars=string.ascii_lowercase + string.digits):
    """Create a random string."""
    return "".join(random.choice(chars) for _ in range(size))


def rok_pvc_from_dict(vol, namespace):
    pvc = utils.pvc_from_dict(vol, namespace)
    pvc.metadata.name = "%s-%s" % (vol["name"], random_string())
    return pvc


def add_owner_reference(obj, nb):
    owner_reference = client.V1ObjectReference(
        api_version=nb["apiVersion"],
        kind=nb["kind"],
        name=nb["metadata"]["name"],
        uid=nb["metadata"]["uid"],
    )

    if not obj.metadata.owner_references:
        obj.metadata.owner_references = []
    obj.metadata.owner_references.append(owner_reference)