# -*- encoding: utf-8 -*-
#
# Copyright 2013 Hewlett-Packard Development Company, L.P.
#
# 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.
"""
PXE Driver and supporting meta-classes.
"""

from ironic.common import exception
from ironic.drivers import base
from ironic.drivers.modules import ipminative
from ironic.drivers.modules import ipmitool
from ironic.drivers.modules import pxe
from ironic.drivers.modules import seamicro
from ironic.drivers.modules import ssh
from ironic.drivers import utils
from ironic.openstack.common import importutils


class PXEAndIPMIToolDriver(base.BaseDriver):
    """PXE + IPMITool driver.

    This driver implements the `core` functionality, combinding
    :class:`ironic.drivers.ipmi.IPMI` for power on/off and reboot with
    :class:`ironic.driver.pxe.PXE` for image deployment. Implementations are in
    those respective classes; this class is merely the glue between them.
    """

    def __init__(self):
        self.power = ipmitool.IPMIPower()
        self.deploy = pxe.PXEDeploy()
        self.pxe_vendor = pxe.VendorPassthru()
        self.ipmi_vendor = ipmitool.VendorPassthru()
        self.mapping = {'pass_deploy_info': self.pxe_vendor,
                        'set_boot_device': self.ipmi_vendor}
        self.vendor = utils.MixinVendorInterface(self.mapping)


class PXEAndSSHDriver(base.BaseDriver):
    """PXE + SSH driver.

    NOTE: This driver is meant only for testing environments.

    This driver implements the `core` functionality, combinding
    :class:`ironic.drivers.ssh.SSH` for power on/off and reboot of virtual
    machines tunneled over SSH, with :class:`ironic.driver.pxe.PXE` for image
    deployment. Implementations are in those respective classes; this class is
    merely the glue between them.
    """

    def __init__(self):
        self.power = ssh.SSHPower()
        self.deploy = pxe.PXEDeploy()
        self.vendor = pxe.VendorPassthru()


class PXEAndIPMINativeDriver(base.BaseDriver):
    """PXE + Native IPMI driver.

    This driver implements the `core` functionality, combining
    :class:`ironic.drivers.modules.ipminative.NativeIPMIPower` for power
    on/off and reboot with
    :class:`ironic.driver.modules.pxe.PXE` for image deployment.
    Implementations are in those respective classes;
    this class is merely the glue between them.
    """

    def __init__(self):
        self.power = ipminative.NativeIPMIPower()
        self.deploy = pxe.PXEDeploy()
        self.pxe_vendor = pxe.VendorPassthru()
        self.ipmi_vendor = ipminative.VendorPassthru()
        self.mapping = {'pass_deploy_info': self.pxe_vendor,
                        'set_boot_device': self.ipmi_vendor}
        self.vendor = utils.MixinVendorInterface(self.mapping)


class PXEAndSeaMicroDriver(base.BaseDriver):
    """PXE + SeaMicro driver.

    This driver implements the `core` functionality, combining
    :class:ironic.drivers.modules.seamicro.Power for power
    on/off and reboot with
    :class:ironic.driver.modules.pxe.PXE for image deployment.
    Implementations are in those respective classes;
    this class is merely the glue between them.
    """

    def __init__(self):
        if not importutils.try_import('seamicroclient'):
            raise exception.DriverLoadError(
                    driver=self.__class__.__name__,
                    reason="Unable to import seamicroclient library")
        self.power = seamicro.Power()
        self.deploy = pxe.PXEDeploy()
        self.seamicro_vendor = seamicro.VendorPassthru()
        self.pxe_vendor = pxe.VendorPassthru()
        self.mapping = {'pass_deploy_info': self.pxe_vendor,
                        'attach_volume': self.seamicro_vendor,
                        'set_boot_device': self.seamicro_vendor,
                        'set_node_vlan_id': self.seamicro_vendor}
        self.vendor = utils.MixinVendorInterface(self.mapping)