# Copyright 2018 Beijing Lenovo Software Ltd.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

import socket

from oslo_config import cfg

from cyborg.common.i18n import _


opts = [
    cfg.ListOpt(
        'enabled_drivers',
        default=['fake_driver'],
        help=_(
            'The accelerator drivers enabled on this agent. Such '
            'as intel_fpga_driver, inspur_fpga_driver,'
            'nvidia_gpu_driver, intel_qat_driver,'
            'inspur_nvme_ssd_driver, xilinx_fpga_driver, etc.'
        ),
    ),
    cfg.IntOpt(
        'resource_provider_startup_retries',
        default=3,
        min=0,
        help=_(
            'Number of times to retry looking up the resource '
            'provider in Placement during agent startup. Uses '
            'exponential backoff (1s, 2s, 4s, ...) between '
            'attempts. Set to 0 to fail immediately without '
            'retrying.'
        ),
    ),
    cfg.StrOpt(
        'resource_provider_name',
        default=socket.getfqdn(),
        sample_default='compute.fully.qualified.name',
        help=_(
            'Name of the compute resource provider in Placement. '
            'This should match the hypervisor_hostname used by Nova '
            'for this compute host. Defaults to socket.getfqdn() '
            'which typically matches libvirt behavior. If resource '
            'provider lookup fails with this name, Cyborg will fall '
            'back to using CONF.host.'
        ),
    ),
]

opt_group = cfg.OptGroup(
    name='agent', title='Options for the cyborg-agent service'
)


AGENT_OPTS = opts


def register_opts(conf):
    conf.register_group(opt_group)
    conf.register_opts(opts, group=opt_group)


def list_opts():
    return {opt_group: AGENT_OPTS}
