oncall-engine/engine/apps/labels/utils.py

import logging
import typing

from django.apps import apps  # noqa: I251
from django.conf import settings

if typing.TYPE_CHECKING:
    from apps.alerts.models import AlertGroup
    from apps.labels.models import AssociatedLabel
    from apps.user_management.models import Organization

logger = logging.getLogger(__name__)


LABEL_OUTDATED_TIMEOUT_MINUTES = 30
ASSOCIATED_MODEL_NAME = "AssociatedLabel"


def get_associating_label_model(obj_model_name: str) -> typing.Type["AssociatedLabel"]:
    associating_label_model_name = obj_model_name + ASSOCIATED_MODEL_NAME
    label_model = apps.get_model("labels", associating_label_model_name)
    return label_model


def is_labels_feature_enabled(organization: "Organization") -> bool:
    """
    is_labels_feature_enabled checks if env with labels feature is enabled and plugin is provisioned.
    """
    env_enabled = settings.FEATURE_LABELS_ENABLED_FOR_ALL or organization.id in settings.FEATURE_LABELS_ENABLED_PER_ORG
    return organization.is_grafana_labels_enabled and env_enabled


def get_labels_dict(labelable) -> dict[str, str]:
    """
    get_labels_dict returns dict of labels' key and values names for the given object
    """
    return {label.key.name: label.value.name for label in labelable.labels.all().select_related("key", "value")}


def get_alert_group_labels_dict(alert_group: "AlertGroup") -> dict[str, str]:
    """
    get_alert_group_labels_dict returns dict of labels' key and values names for the given alert group.
    It's different from get_labels_dict, because AlertGroupAssociated labels store key/value_name, not key/value_id
    """
    return {label.key_name: label.value_name for label in alert_group.labels.all()}