# Copyright 2017 OVH SAS
# 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.

from openstack import exceptions
from openstack.network.v2 import qos_rule_type
from openstack.tests.unit import base


class TestQosRuleType(base.TestCase):
    rule_type_name = "bandwidth_limit"

    qos_extension = {
        "updated": "2015-06-08T10:00:00-00:00",
        "name": "Quality of Service",
        "links": [],
        "alias": "qos",
        "description": "The Quality of Service extension.",
    }
    qos_rule_type_details_extension = {
        "updated": "2017-06-22T10:00:00-00:00",
        "name": "Details of QoS rule types",
        "links": [],
        "alias": "qos-rule-type-details",
        "description": (
            "Expose details about QoS rule types supported by "
            "loaded backend drivers"
        ),
    }

    mock_rule_type_bandwidth_limit = {'type': 'bandwidth_limit'}
    mock_rule_type_dscp_marking = {'type': 'dscp_marking'}
    mock_rule_types = [
        mock_rule_type_bandwidth_limit,
        mock_rule_type_dscp_marking,
    ]

    mock_rule_type_details = {
        'drivers': [
            {
                'name': 'linuxbridge',
                'supported_parameters': [
                    {
                        'parameter_values': {'start': 0, 'end': 2147483647},
                        'parameter_type': 'range',
                        'parameter_name': 'max_kbps',
                    },
                    {
                        'parameter_values': ['ingress', 'egress'],
                        'parameter_type': 'choices',
                        'parameter_name': 'direction',
                    },
                    {
                        'parameter_values': {'start': 0, 'end': 2147483647},
                        'parameter_type': 'range',
                        'parameter_name': 'max_burst_kbps',
                    },
                ],
            }
        ],
        'type': rule_type_name,
    }

    def _compare_rule_types(self, exp, real):
        self.assertDictEqual(
            qos_rule_type.QoSRuleType(**exp).to_dict(computed=False),
            real.to_dict(computed=False),
        )

    def test_list_qos_rule_types(self):
        self.register_uris(
            [
                dict(
                    method='GET',
                    uri=self.get_mock_url(
                        'network', 'public', append=['v2.0', 'extensions']
                    ),
                    json={'extensions': [self.qos_extension]},
                ),
                dict(
                    method='GET',
                    uri=self.get_mock_url(
                        'network',
                        'public',
                        append=['v2.0', 'qos', 'rule-types'],
                    ),
                    json={'rule_types': self.mock_rule_types},
                ),
            ]
        )
        rule_types = self.cloud.list_qos_rule_types()
        for a, b in zip(self.mock_rule_types, rule_types):
            self._compare_rule_types(a, b)
        self.assert_calls()

    def test_list_qos_rule_types_no_qos_extension(self):
        self.register_uris(
            [
                dict(
                    method='GET',
                    uri=self.get_mock_url(
                        'network', 'public', append=['v2.0', 'extensions']
                    ),
                    json={'extensions': []},
                )
            ]
        )
        self.assertRaises(
            exceptions.SDKException, self.cloud.list_qos_rule_types
        )
        self.assert_calls()

    def test_get_qos_rule_type_details(self):
        self.register_uris(
            [
                dict(
                    method='GET',
                    uri=self.get_mock_url(
                        'network', 'public', append=['v2.0', 'extensions']
                    ),
                    json={
                        'extensions': [
                            self.qos_extension,
                            self.qos_rule_type_details_extension,
                        ]
                    },
                ),
                dict(
                    method='GET',
                    uri=self.get_mock_url(
                        'network', 'public', append=['v2.0', 'extensions']
                    ),
                    json={
                        'extensions': [
                            self.qos_extension,
                            self.qos_rule_type_details_extension,
                        ]
                    },
                ),
                dict(
                    method='GET',
                    uri=self.get_mock_url(
                        'network',
                        'public',
                        append=[
                            'v2.0',
                            'qos',
                            'rule-types',
                            self.rule_type_name,
                        ],
                    ),
                    json={'rule_type': self.mock_rule_type_details},
                ),
            ]
        )

        self._compare_rule_types(
            self.mock_rule_type_details,
            self.cloud.get_qos_rule_type_details(self.rule_type_name),
        )
        self.assert_calls()

    def test_get_qos_rule_type_details_no_qos_extension(self):
        self.register_uris(
            [
                dict(
                    method='GET',
                    uri=self.get_mock_url(
                        'network', 'public', append=['v2.0', 'extensions']
                    ),
                    json={'extensions': []},
                )
            ]
        )
        self.assertRaises(
            exceptions.SDKException,
            self.cloud.get_qos_rule_type_details,
            self.rule_type_name,
        )
        self.assert_calls()

    def test_get_qos_rule_type_details_no_qos_details_extension(self):
        self.register_uris(
            [
                dict(
                    method='GET',
                    uri=self.get_mock_url(
                        'network', 'public', append=['v2.0', 'extensions']
                    ),
                    json={'extensions': [self.qos_extension]},
                ),
                dict(
                    method='GET',
                    uri=self.get_mock_url(
                        'network', 'public', append=['v2.0', 'extensions']
                    ),
                    json={'extensions': [self.qos_extension]},
                ),
            ]
        )
        self.assertRaises(
            exceptions.SDKException,
            self.cloud.get_qos_rule_type_details,
            self.rule_type_name,
        )
        self.assert_calls()
