# Copyright 2013 Red Hat, Inc.
# All Rights Reserved.
#
#    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 mock
import testtools
from testtools import matchers

from ironicclient import exc
from ironicclient.tests.unit import utils
from ironicclient.v1 import driver


DRIVER1 = {
    'name': 'fake',
    'type': 'dynamic',
    'hosts': ['fake-host1', 'fake-host2'],
    'default_bios_interface': 'bios',
    'default_boot_interface': 'boot',
    'default_console_interface': 'console',
    'default_deploy_interface': 'deploy',
    'default_inspect_interface': 'inspect',
    'default_management_interface': 'management',
    'default_network_interface': 'network',
    'default_power_interface': 'power',
    'default_raid_interface': 'raid',
    'default_vendor_interface': 'vendor',
    'enabled_bios_interfaces': ['bios', 'bios2'],
    'enabled_boot_interfaces': ['boot', 'boot2'],
    'enabled_console_interfaces': ['console', 'console2'],
    'enabled_deploy_interfaces': ['deploy', 'deploy2'],
    'enabled_inspect_interfaces': ['inspect', 'inspect2'],
    'enabled_management_interfaces': ['management', 'management2'],
    'enabled_network_interfaces': ['network', 'network2'],
    'enabled_power_interfaces': ['power', 'power2'],
    'enabled_raid_interfaces': ['raid', 'raid2'],
    'enabled_vendor_interfaces': ['vendor', 'vendor2'],
}
DRIVER2 = {
    'name': 'pxe_ipminative',
    'type': 'classic',
    'hosts': ['fake-host1', 'fake-host2'],
}

DRIVER2_PROPERTIES = {
    "username": "username. Required.",
    "password": "password. Optional.",
    "address": "IP of the node. Required.",
}

DRIVER_VENDOR_PASSTHRU_METHOD = {"lookup": {"attach": "false",
                                            "http_methods": ["POST"],
                                            "description": "",
                                            "async": "false"}}
DRIVER2_RAID_LOGICAL_DISK_PROPERTIES = {
    "property1": "description1",
    "property2": "description2",
}

fake_responses = {
    '/v1/drivers':
    {
        'GET': (
            {},
            {'drivers': [DRIVER1]},
        ),
    },
    '/v1/drivers/%s' % DRIVER1['name']:
    {
        'GET': (
            {},
            DRIVER1
        ),
    },
    '/v1/drivers/%s/properties' % DRIVER2['name']:
    {
        'GET': (
            {},
            DRIVER2_PROPERTIES,
        ),
    },
    '/v1/drivers/%s/vendor_passthru/methods' % DRIVER1['name']:
    {
        'GET': (
            {},
            DRIVER_VENDOR_PASSTHRU_METHOD,
        ),
    },
    '/v1/drivers/%s/raid/logical_disk_properties' % DRIVER2['name']:
    {
        'GET': (
            {},
            DRIVER2_RAID_LOGICAL_DISK_PROPERTIES,
        ),
    },
}


class DriverManagerTest(testtools.TestCase):

    def setUp(self):
        super(DriverManagerTest, self).setUp()
        self.api = utils.FakeAPI(fake_responses)
        self.mgr = driver.DriverManager(self.api)

    def test_driver_list(self):
        drivers = self.mgr.list()
        expect = [
            ('GET', '/v1/drivers', {}, None),
        ]
        self.assertEqual(expect, self.api.calls)
        self.assertThat(drivers, matchers.HasLength(1))

    def test_driver_show(self):
        driver_ = self.mgr.get(DRIVER1['name'])
        expect = [
            ('GET', '/v1/drivers/%s' % DRIVER1['name'], {}, None)
        ]
        self.assertEqual(expect, self.api.calls)

        driver_attr = {}
        for attr in DRIVER1.keys():
            driver_attr[attr] = getattr(driver_, attr)

        self.assertEqual(DRIVER1, driver_attr)

    def test_driver_properties(self):
        properties = self.mgr.properties(DRIVER2['name'])
        expect = [
            ('GET', '/v1/drivers/%s/properties' % DRIVER2['name'], {}, None),
        ]
        self.assertEqual(expect, self.api.calls)
        self.assertEqual(DRIVER2_PROPERTIES, properties)

    def test_driver_raid_logical_disk_properties(self):
        properties = self.mgr.raid_logical_disk_properties(DRIVER2['name'])
        expect = [
            ('GET',
             '/v1/drivers/%s/raid/logical_disk_properties' % DRIVER2['name'],
             {}, None)]
        self.assertEqual(expect, self.api.calls)
        self.assertEqual(DRIVER2_RAID_LOGICAL_DISK_PROPERTIES, properties)

    @mock.patch.object(driver.DriverManager, '_list', autospec=True)
    def test_driver_raid_logical_disk_properties_indexerror(self, _list_mock):
        _list_mock.side_effect = IndexError

        properties = self.mgr.raid_logical_disk_properties(DRIVER2['name'])

        _list_mock.assert_called_once_with(
            self.mgr,
            '/v1/drivers/%s/raid/logical_disk_properties' % DRIVER2['name'])
        self.assertEqual({}, properties)

    @mock.patch.object(driver.DriverManager, 'update', autospec=True)
    def test_vendor_passthru_update(self, update_mock):
        # For now just mock the tests because vendor-passthru doesn't return
        # anything to verify.
        vendor_passthru_args = {'arg1': 'val1'}
        kwargs = {
            'driver_name': 'driver_name',
            'method': 'method',
            'args': vendor_passthru_args
            }

        final_path = 'driver_name/vendor_passthru/method'
        for http_method in ('POST', 'PUT', 'PATCH'):
            kwargs['http_method'] = http_method
            self.mgr.vendor_passthru(**kwargs)
            update_mock.assert_called_once_with(mock.ANY, final_path,
                                                vendor_passthru_args,
                                                http_method=http_method)
            update_mock.reset_mock()

    @mock.patch.object(driver.DriverManager, 'get', autospec=True)
    def test_vendor_passthru_get(self, get_mock):
        kwargs = {
            'driver_name': 'driver_name',
            'method': 'method',
            'http_method': 'GET',
            }

        final_path = 'driver_name/vendor_passthru/method'
        self.mgr.vendor_passthru(**kwargs)
        get_mock.assert_called_once_with(mock.ANY, final_path)

    @mock.patch.object(driver.DriverManager, 'delete', autospec=True)
    def test_vendor_passthru_delete(self, delete_mock):
        kwargs = {
            'driver_name': 'driver_name',
            'method': 'method',
            'http_method': 'DELETE',
            }

        final_path = 'driver_name/vendor_passthru/method'
        self.mgr.vendor_passthru(**kwargs)
        delete_mock.assert_called_once_with(mock.ANY, final_path)

    @mock.patch.object(driver.DriverManager, 'delete', autospec=True)
    def test_vendor_passthru_unknown_http_method(self, delete_mock):
        kwargs = {
            'driver_name': 'driver_name',
            'method': 'method',
            'http_method': 'UNKNOWN',
            }
        self.assertRaises(exc.InvalidAttribute, self.mgr.vendor_passthru,
                          **kwargs)

    def test_vendor_passthru_methods(self):
        vendor_methods = self.mgr.get_vendor_passthru_methods(DRIVER1['name'])
        expect = [
            ('GET', '/v1/drivers/%s/vendor_passthru/methods' % DRIVER1['name'],
             {}, None)
        ]
        self.assertEqual(expect, self.api.calls)
        self.assertEqual(DRIVER_VENDOR_PASSTHRU_METHOD, vendor_methods)
