# Copyright 2020 Inspur Electronic Information Industry Co.,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.

from unittest import mock

from oslo_serialization import jsonutils

from cyborg.accelerator.drivers.ssd import utils
from cyborg.accelerator.drivers.ssd.base import SSDDriver
from cyborg.accelerator.drivers.ssd.inspur.driver import InspurNVMeSSDDriver
from cyborg.tests import base


NVME_SSD_INFO = (
    "0000:db:00.0 Non-Volatile memory controller [0108]: Inspur "
    "Electronic Information Industry Co., Ltd. Device [1bd4:1001]"
    " (rev 02)\n0000:db:01.0 Non-Volatile memory controller "
    "[0108]: Inspur Electronic Information Industry Co., Ltd. "
    "Device [1bd4:1001] (rev 02)"
)


class stdout:
    def readlines(self):
        return [NVME_SSD_INFO]


class p:
    def __init__(self):
        self.stdout = stdout()

    def wait(self):
        pass


class TestSSDDriverUtils(base.TestCase):
    def setUp(self):
        super().setUp()
        self.p = p()

    @mock.patch('cyborg.accelerator.drivers.ssd.utils.lspci_privileged')
    def test_discover_vendors(self, mock_devices):
        mock_devices.return_value = self.p.stdout.readlines()
        ssd_vendors = utils.discover_vendors()
        self.assertEqual(1, len(ssd_vendors))

    @mock.patch('cyborg.accelerator.drivers.ssd.utils.lspci_privileged')
    def test_discover_with_inspur_ssd_driver(self, mock_devices_for_vendor):
        mock_devices_for_vendor.return_value = self.p.stdout.readlines()
        self.set_defaults(host='host-192-168-32-195', debug=True)
        vendor_id = '1bd4'
        ssd_list = InspurNVMeSSDDriver.discover(vendor_id)
        self.assertEqual(2, len(ssd_list))
        attach_handle_list = [
            {
                'attach_type': 'PCI',
                'attach_info': '{"bus": "db", '
                '"device": "00", '
                '"domain": "0000", '
                '"function": "0"}',
                'in_use': False,
            }
        ]
        attribute_list = [
            {'key': 'rc', 'value': 'CUSTOM_SSD'},
            {'key': 'trait0', 'value': 'CUSTOM_SSD_INSPUR'},
            {'key': 'trait1', 'value': 'CUSTOM_SSD_PRODUCT_ID_1001'},
        ]
        expected = {
            'vendor': '1bd4',
            'type': 'SSD',
            'std_board_info': {
                "controller": "Non-Volatile memory controller",
                "product_id": "1001",
            },
            'vendor_board_info': {"vendor_info": "ssd_vb_info"},
            'deployable_list': [
                {
                    'num_accelerators': 1,
                    'driver_name': 'INSPUR',
                    'name': 'host-192-168-32-195_0000:db:00.0',
                    'attach_handle_list': attach_handle_list,
                    'attribute_list': attribute_list,
                },
            ],
            'controlpath_id': {
                'cpid_info': '{"bus": "db", '
                '"device": "00", '
                '"domain": "0000", '
                '"function": "0"}',
                'cpid_type': 'PCI',
            },
        }
        ssd_obj = ssd_list[0]
        ssd_dict = ssd_obj.as_dict()
        ssd_dep_list = ssd_dict['deployable_list']
        ssd_attach_handle_list = ssd_dep_list[0].as_dict()[
            'attach_handle_list'
        ]
        ssd_attribute_list = ssd_dep_list[0].as_dict()['attribute_list']
        attri_obj_data = []
        [attri_obj_data.append(attr.as_dict()) for attr in ssd_attribute_list]
        attribute_actual_data = sorted(attri_obj_data, key=lambda i: i['key'])
        self.assertEqual(expected['vendor'], ssd_dict['vendor'])
        self.assertEqual(
            expected['controlpath_id'], ssd_dict['controlpath_id']
        )
        self.assertEqual(
            expected['std_board_info'],
            jsonutils.loads(ssd_dict['std_board_info']),
        )
        self.assertEqual(
            expected['vendor_board_info'],
            jsonutils.loads(ssd_dict['vendor_board_info']),
        )
        self.assertEqual(
            expected['deployable_list'][0]['num_accelerators'],
            ssd_dep_list[0].as_dict()['num_accelerators'],
        )
        self.assertEqual(
            expected['deployable_list'][0]['name'],
            ssd_dep_list[0].as_dict()['name'],
        )
        self.assertEqual(
            expected['deployable_list'][0]['driver_name'],
            ssd_dep_list[0].as_dict()['driver_name'],
        )
        self.assertEqual(
            attach_handle_list[0], ssd_attach_handle_list[0].as_dict()
        )
        self.assertEqual(attribute_list, attribute_actual_data)

    @mock.patch('cyborg.accelerator.drivers.ssd.utils.lspci_privileged')
    def test_discover_with_base_ssd_driver(self, mock_devices_for_vendor):
        mock_devices_for_vendor.return_value = self.p.stdout.readlines()
        with self.assertLogs(None, level='INFO') as cm:
            d = SSDDriver.create()
            ssd_list = d.discover()
        self.assertEqual(
            cm.output,
            [
                'INFO:cyborg.accelerator.drivers.ssd.base:The '
                'method "discover" is called in generic.SSDDriver'
            ],
        )
        self.assertEqual(2, len(ssd_list))
        self.assertEqual("1bd4", ssd_list[1].as_dict()['vendor'])
