import os

from ucloud.settings import settings
from ucloud.shared import shared


def update_config(section, kwargs):
    uncloud_config = shared.etcd_client.get(
        settings.config_key, value_in_json=True
    )
    if not uncloud_config:
        uncloud_config = {}
    else:
        uncloud_config = uncloud_config.value

    uncloud_config[section] = kwargs
    shared.etcd_client.put(
        settings.config_key, uncloud_config, value_in_json=True
    )


def configure_parser(parser):
    configure_subparsers = parser.add_subparsers(dest="subcommand")

    otp_parser = configure_subparsers.add_parser("otp")
    otp_parser.add_argument(
        "--verification-controller-url", required=True, metavar="URL"
    )
    otp_parser.add_argument(
        "--auth-name", required=True, metavar="OTP-NAME"
    )
    otp_parser.add_argument(
        "--auth-realm", required=True, metavar="OTP-REALM"
    )
    otp_parser.add_argument(
        "--auth-seed", required=True, metavar="OTP-SEED"
    )

    network_parser = configure_subparsers.add_parser("network")
    network_parser.add_argument(
        "--prefix-length", required=True, type=int
    )
    network_parser.add_argument("--prefix", required=True)
    network_parser.add_argument("--vxlan-phy-dev", required=True)

    netbox_parser = configure_subparsers.add_parser("netbox")
    netbox_parser.add_argument("--url", required=True)
    netbox_parser.add_argument("--token", required=True)

    ssh_parser = configure_subparsers.add_parser("ssh")
    ssh_parser.add_argument("--username", default="root")
    ssh_parser.add_argument(
        "--private-key-path",
        default=os.path.expanduser("~/.ssh/id_rsa"),
    )

    storage_parser = configure_subparsers.add_parser("storage")
    storage_parser.add_argument("--file-dir", required=True)
    storage_parser_subparsers = storage_parser.add_subparsers(
        dest="storage_backend"
    )

    filesystem_storage_parser = storage_parser_subparsers.add_parser(
        "filesystem"
    )
    filesystem_storage_parser.add_argument("--vm-dir", required=True)
    filesystem_storage_parser.add_argument("--image-dir", required=True)

    ceph_storage_parser = storage_parser_subparsers.add_parser("ceph")
    ceph_storage_parser.add_argument("--ceph-vm-pool", required=True)
    ceph_storage_parser.add_argument("--ceph-image-pool", required=True)


def main(**kwargs):
    subcommand = kwargs.pop("subcommand")
    if not subcommand:
        pass
    else:
        update_config(subcommand, kwargs)