# 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
from webob import exc as webob_exc

from magnum.api.controllers import v1 as v1_api
from magnum.tests import base as test_base
from magnum.tests.unit.api import base as api_base


class TestRootController(api_base.FunctionalTest):
    def test_version(self):
        expected = {u'default_version':
                    {u'id': u'v1', u'links':
                     [{u'href': u'http://localhost/v1/', u'rel': u'self'}]},
                    u'description': u'Magnum is an OpenStack project which '
                    'aims to provide container management.',
                    u'name': u'OpenStack Magnum API',
                    u'versions': [{u'id': u'v1',
                                  u'links':
                                      [{u'href': u'http://localhost/v1/',
                                        u'rel': u'self'}]}]}

        response = self.app.get('/')
        self.assertEqual(expected, response.json)

    def test_v1_controller(self):
        expected = {
            u'media_types':
            [{u'base': u'application/json',
              u'type': u'application/vnd.openstack.magnum.v1+json'}],
            u'links': [{u'href': u'http://localhost/v1/',
                        u'rel': u'self'},
                       {u'href':
                        u'http://docs.openstack.org/developer'
                        '/magnum/dev/api-spec-v1.html',
                        u'type': u'text/html', u'rel': u'describedby'}],
            u'bays': [{u'href': u'http://localhost/v1/bays/',
                       u'rel': u'self'},
                      {u'href': u'http://localhost/bays/',
                       u'rel': u'bookmark'}],
            u'services': [{u'href': u'http://localhost/v1/services/',
                           u'rel': u'self'},
                          {u'href': u'http://localhost/services/',
                           u'rel': u'bookmark'}],
            u'baymodels': [{u'href': u'http://localhost/v1/baymodels/',
                            u'rel': u'self'},
                           {u'href': u'http://localhost/bays/',
                            u'rel': u'bookmark'}],
            u'pods': [{u'href': u'http://localhost/v1/pods/',
                       u'rel': u'self'},
                      {u'href': u'http://localhost/pods/',
                       u'rel': u'bookmark'}],
            u'rcs': [{u'href': u'http://localhost/v1/rcs/',
                      u'rel': u'self'},
                     {u'href': u'http://localhost/rcs/',
                      u'rel': u'bookmark'}],
            u'id': u'v1',
            u'containers': [{u'href': u'http://localhost/v1/containers/',
                             u'rel': u'self'},
                            {u'href': u'http://localhost/containers/',
                             u'rel': u'bookmark'}],
            u'x509keypairs': [{u'href': u'http://localhost/v1/x509keypairs/',
                               u'rel': u'self'},
                              {u'href': u'http://localhost/x509keypairs/',
                               u'rel': u'bookmark'}],
            u'certificates': [{u'href': u'http://localhost/v1/certificates/',
                               u'rel': u'self'},
                              {u'href': u'http://localhost/certificates/',
                               u'rel': u'bookmark'}]}

        response = self.app.get('/v1/')
        self.assertEqual(expected, response.json)

    def test_get_not_found(self):
        response = self.app.get('/a/bogus/url', expect_errors=True)
        assert response.status_int == 404


class TestV1Routing(api_base.FunctionalTest):

    def test_route_checks_version(self):
        self.get_json('/')
        self._check_version.assert_called_once_with(mock.ANY,
                                                    mock.ANY)


class TestCheckVersions(test_base.TestCase):

    def setUp(self):
        super(TestCheckVersions, self).setUp()

        class ver(object):
            major = None
            minor = None

        self.version = ver()

    def test_check_version_invalid_major_version(self):
        self.version.major = v1_api.BASE_VERSION + 1
        self.version.minor = v1_api.MIN_VER.minor
        self.assertRaises(webob_exc.HTTPNotAcceptable,
                          v1_api.Controller()._check_version,
                          self.version)

    def test_check_version_too_low(self):
        self.version.major = v1_api.BASE_VERSION
        self.version.minor = v1_api.MIN_VER.minor - 1
        self.assertRaises(webob_exc.HTTPNotAcceptable,
                          v1_api.Controller()._check_version,
                          self.version)

    def test_check_version_too_high(self):
        self.version.major = v1_api.BASE_VERSION
        self.version.minor = v1_api.MAX_VER.minor + 1
        e = self.assertRaises(webob_exc.HTTPNotAcceptable,
                              v1_api.Controller()._check_version,
                              self.version, {'fake-headers':
                                             v1_api.MAX_VER.minor})

        self.assertEqual(v1_api.MAX_VER.minor, e.headers['fake-headers'])

    def test_check_version_ok(self):
        self.version.major = v1_api.BASE_VERSION
        self.version.minor = v1_api.MIN_VER.minor
        v1_api.Controller()._check_version(self.version)