from ipam.models import VRF
from tenancy.models import Tenant

from extras.models import CustomField, CustomFieldValue

from startup_script_utils import load_yaml
import sys

vrfs = load_yaml('/opt/netbox/initializers/vrfs.yml')

if vrfs is None:
  sys.exit()

optional_assocs = {
  'tenant': (Tenant, 'name')
}

for params in vrfs:
  custom_fields = params.pop('custom_fields', None)

  for assoc, details in optional_assocs.items():
    if assoc in params:
      model, field = details
      query = { field: params.pop(assoc) }

      params[assoc] = model.objects.get(**query)

  vrf, created = VRF.objects.get_or_create(**params)

  if created:
    if custom_fields is not None:
      for cf_name, cf_value in custom_fields.items():
        custom_field = CustomField.objects.get(name=cf_name)
        custom_field_value = CustomFieldValue.objects.create(
          field=custom_field,
          obj=vrf,
          value=cf_value
        )

        vrf.custom_field_values.add(custom_field_value)

    print("📦 Created VRF", vrf.name)