# 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.

from six.moves import http_client

from ironic.api.controllers.v1 import versions
from ironic.tests.unit.api import base


class TestRoot(base.BaseApiTest):

    def test_get_root(self):
        response = self.get_json('/', path_prefix='')
        # Check fields are not empty
        [self.assertNotIn(f, ['', []]) for f in response]

        self.assertEqual('OpenStack Ironic API', response['name'])
        self.assertTrue(response['description'])
        self.assertEqual([response['default_version']], response['versions'])

        version1 = response['default_version']
        self.assertEqual('v1', version1['id'])
        self.assertEqual('CURRENT', version1['status'])
        self.assertEqual(versions.min_version_string(),
                         version1['min_version'])
        self.assertEqual(versions.max_version_string(), version1['version'])

    def test_no_html_errors(self):
        response = self.get_json('/foo', expect_errors=True)
        self.assertEqual(http_client.NOT_FOUND, response.status_int)
        self.assertIn('Not Found', response.json['error_message'])
        self.assertNotIn('<html', response.json['error_message'])

    def test_no_html_errors2(self):
        response = self.delete('/v1', expect_errors=True)
        self.assertEqual(http_client.METHOD_NOT_ALLOWED, response.status_int)
        self.assertIn('Not Allowed', response.json['error_message'])
        self.assertNotIn('<html', response.json['error_message'])


class TestV1Root(base.BaseApiTest):

    def _test_get_root(self, headers=None, additional_expected_resources=None):
        if headers is None:
            headers = {}
        if additional_expected_resources is None:
            additional_expected_resources = []
        data = self.get_json('/', headers=headers)
        self.assertEqual('v1', data['id'])
        # Check fields are not empty
        for f in data:
            self.assertNotIn(f, ['', []])
        # Check if all known resources are present and there are no extra ones.
        not_resources = ('id', 'links', 'media_types', 'version')
        actual_resources = tuple(set(data) - set(not_resources))
        expected_resources = (['chassis', 'drivers', 'nodes', 'ports']
                              + additional_expected_resources)
        self.assertEqual(sorted(expected_resources), sorted(actual_resources))
        self.assertIn({'type': 'application/vnd.openstack.ironic.v1+json',
                       'base': 'application/json'}, data['media_types'])

        version1 = data['version']
        self.assertEqual('v1', version1['id'])
        self.assertEqual('CURRENT', version1['status'])
        self.assertEqual(versions.min_version_string(),
                         version1['min_version'])
        self.assertEqual(versions.max_version_string(), version1['version'])

    def test_get_v1_root(self):
        self._test_get_root()

    def test_get_v1_22_root(self):
        self._test_get_root(headers={'X-OpenStack-Ironic-API-Version': '1.22'},
                            additional_expected_resources=['heartbeat',
                                                           'lookup'])

    def test_get_v1_23_root(self):
        self._test_get_root(headers={'X-OpenStack-Ironic-API-Version': '1.23'},
                            additional_expected_resources=['heartbeat',
                                                           'lookup',
                                                           'portgroups'])

    def test_get_v1_32_root(self):
        self._test_get_root(headers={'X-OpenStack-Ironic-API-Version': '1.32'},
                            additional_expected_resources=['heartbeat',
                                                           'lookup',
                                                           'portgroups',
                                                           'volume'])