import logging

from django.db.models.signals import post_save
from django.dispatch import receiver

logger = logging.getLogger(__name__)


def _get_tenant_model():
    from django.apps import apps
    return apps.get_model("tenant", "Tenant")


def _register():
    Tenant = _get_tenant_model()

    @receiver(post_save, sender=Tenant)
    def on_tenant_created(sender, instance, created, **kwargs):
        if not created:
            return
        if instance.schema_name == "public":
            return

        from django_tenants.utils import schema_context

        from apps.permission.services import seed_default_roles
        from apps.setting.services import seed_default_lookups

        try:
            with schema_context(instance.schema_name):
                seed_default_roles(instance.schema_name)
                seed_default_lookups(instance.schema_name)
        except Exception:
            logger.exception(
                "Failed to seed defaults for tenant %s", instance.schema_name
            )