# 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 openstack.cloud
from openstack.tests import fakes
from openstack.tests.unit import base


class TestFlavors(base.TestCase):

    def test_create_flavor(self):

        self.register_uris([
            dict(method='POST',
                 uri='{endpoint}/flavors'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json={'flavor': fakes.FAKE_FLAVOR},
                 validate=dict(
                     json={
                         'flavor': {
                             "name": "vanilla",
                             "ram": 65536,
                             "vcpus": 24,
                             "swap": 0,
                             "os-flavor-access:is_public": True,
                             "rxtx_factor": 1.0,
                             "OS-FLV-EXT-DATA:ephemeral": 0,
                             "disk": 1600,
                             "id": None}}))])

        self.cloud.create_flavor(
            'vanilla', ram=65536, disk=1600, vcpus=24,
        )
        self.assert_calls()

    def test_delete_flavor(self):
        self.register_uris([
            dict(method='GET',
                 uri='{endpoint}/flavors/detail?is_public=None'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json={'flavors': fakes.FAKE_FLAVOR_LIST}),
            dict(method='DELETE',
                 uri='{endpoint}/flavors/{id}'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT, id=fakes.FLAVOR_ID))])
        self.assertTrue(self.cloud.delete_flavor('vanilla'))

        self.assert_calls()

    def test_delete_flavor_not_found(self):
        self.register_uris([
            dict(method='GET',
                 uri='{endpoint}/flavors/detail?is_public=None'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json={'flavors': fakes.FAKE_FLAVOR_LIST})])

        self.assertFalse(self.cloud.delete_flavor('invalid'))

        self.assert_calls()

    def test_delete_flavor_exception(self):
        self.register_uris([
            dict(method='GET',
                 uri='{endpoint}/flavors/detail?is_public=None'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json={'flavors': fakes.FAKE_FLAVOR_LIST}),
            dict(method='DELETE',
                 uri='{endpoint}/flavors/{id}'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT, id=fakes.FLAVOR_ID),
                 status_code=503)])

        self.assertRaises(openstack.cloud.OpenStackCloudException,
                          self.cloud.delete_flavor, 'vanilla')

    def test_list_flavors(self):
        uris_to_mock = [
            dict(method='GET',
                 uri='{endpoint}/flavors/detail?is_public=None'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json={'flavors': fakes.FAKE_FLAVOR_LIST}),
        ]
        self.register_uris(uris_to_mock)

        flavors = self.cloud.list_flavors()

        # test that new flavor is created correctly
        found = False
        for flavor in flavors:
            if flavor['name'] == 'vanilla':
                found = True
                break
        self.assertTrue(found)
        needed_keys = {'name', 'ram', 'vcpus', 'id', 'is_public', 'disk'}
        if found:
            # check flavor content
            self.assertTrue(needed_keys.issubset(flavor.keys()))
        self.assert_calls()

    def test_list_flavors_with_extra(self):
        uris_to_mock = [
            dict(method='GET',
                 uri='{endpoint}/flavors/detail?is_public=None'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json={'flavors': fakes.FAKE_FLAVOR_LIST}),
        ]
        uris_to_mock.extend([
            dict(method='GET',
                 uri='{endpoint}/flavors/{id}/os-extra_specs'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT, id=flavor['id']),
                 json={'extra_specs': {}})
            for flavor in fakes.FAKE_FLAVOR_LIST])
        self.register_uris(uris_to_mock)

        flavors = self.cloud.list_flavors(get_extra=True)

        # test that new flavor is created correctly
        found = False
        for flavor in flavors:
            if flavor['name'] == 'vanilla':
                found = True
                break
        self.assertTrue(found)
        needed_keys = {'name', 'ram', 'vcpus', 'id', 'is_public', 'disk'}
        if found:
            # check flavor content
            self.assertTrue(needed_keys.issubset(flavor.keys()))
        self.assert_calls()

    def test_get_flavor_by_ram(self):
        uris_to_mock = [
            dict(method='GET',
                 uri='{endpoint}/flavors/detail?is_public=None'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json={'flavors': fakes.FAKE_FLAVOR_LIST}),
        ]
        uris_to_mock.extend([
            dict(method='GET',
                 uri='{endpoint}/flavors/{id}/os-extra_specs'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT, id=flavor['id']),
                 json={'extra_specs': {}})
            for flavor in fakes.FAKE_FLAVOR_LIST])
        self.register_uris(uris_to_mock)

        flavor = self.cloud.get_flavor_by_ram(ram=250)
        self.assertEqual(fakes.STRAWBERRY_FLAVOR_ID, flavor['id'])

    def test_get_flavor_by_ram_and_include(self):
        uris_to_mock = [
            dict(method='GET',
                 uri='{endpoint}/flavors/detail?is_public=None'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json={'flavors': fakes.FAKE_FLAVOR_LIST}),
        ]
        uris_to_mock.extend([
            dict(method='GET',
                 uri='{endpoint}/flavors/{id}/os-extra_specs'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT, id=flavor['id']),
                 json={'extra_specs': {}})
            for flavor in fakes.FAKE_FLAVOR_LIST])
        self.register_uris(uris_to_mock)
        flavor = self.cloud.get_flavor_by_ram(ram=150, include='strawberry')
        self.assertEqual(fakes.STRAWBERRY_FLAVOR_ID, flavor['id'])

    def test_get_flavor_by_ram_not_found(self):
        self.register_uris([
            dict(method='GET',
                 uri='{endpoint}/flavors/detail?is_public=None'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json={'flavors': []})])
        self.assertRaises(
            openstack.cloud.OpenStackCloudException,
            self.cloud.get_flavor_by_ram,
            ram=100)

    def test_get_flavor_string_and_int(self):
        flavor_list_uri = '{endpoint}/flavors/detail?is_public=None'.format(
            endpoint=fakes.COMPUTE_ENDPOINT)
        flavor_resource_uri = '{endpoint}/flavors/1/os-extra_specs'.format(
            endpoint=fakes.COMPUTE_ENDPOINT)
        flavor_list_json = {'flavors': [fakes.make_fake_flavor(
            '1', 'vanilla')]}
        flavor_json = {'extra_specs': {}}

        self.register_uris([
            dict(method='GET', uri=flavor_list_uri, json=flavor_list_json),
            dict(method='GET', uri=flavor_resource_uri, json=flavor_json),
            dict(method='GET', uri=flavor_list_uri, json=flavor_list_json),
            dict(method='GET', uri=flavor_resource_uri, json=flavor_json)])

        flavor1 = self.cloud.get_flavor('1')
        self.assertEqual('1', flavor1['id'])
        flavor2 = self.cloud.get_flavor(1)
        self.assertEqual('1', flavor2['id'])

    def test_set_flavor_specs(self):
        extra_specs = dict(key1='value1')
        self.register_uris([
            dict(method='POST',
                 uri='{endpoint}/flavors/{id}/os-extra_specs'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT, id=1),
                 json=dict(extra_specs=extra_specs))])

        self.cloud.set_flavor_specs(1, extra_specs)
        self.assert_calls()

    def test_unset_flavor_specs(self):
        keys = ['key1', 'key2']
        self.register_uris([
            dict(method='DELETE',
                 uri='{endpoint}/flavors/{id}/os-extra_specs/{key}'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT, id=1, key=key))
            for key in keys])

        self.cloud.unset_flavor_specs(1, keys)
        self.assert_calls()

    def test_add_flavor_access(self):
        self.register_uris([
            dict(method='POST',
                 uri='{endpoint}/flavors/{id}/action'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT, id='flavor_id'),
                 json={
                     'flavor_access': [{
                         'flavor_id': 'flavor_id', 'tenant_id': 'tenant_id'}]},
                 validate=dict(
                     json={'addTenantAccess': {'tenant': 'tenant_id'}}))])

        self.cloud.add_flavor_access('flavor_id', 'tenant_id')
        self.assert_calls()

    def test_remove_flavor_access(self):
        self.register_uris([
            dict(method='POST',
                 uri='{endpoint}/flavors/{id}/action'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT, id='flavor_id'),
                 json={'flavor_access': []},
                 validate=dict(
                     json={'removeTenantAccess': {'tenant': 'tenant_id'}}))])

        self.cloud.remove_flavor_access('flavor_id', 'tenant_id')
        self.assert_calls()

    def test_list_flavor_access(self):
        self.register_uris([
            dict(method='GET',
                 uri='{endpoint}/flavors/vanilla/os-flavor-access'.format(
                     endpoint=fakes.COMPUTE_ENDPOINT),
                 json={
                     'flavor_access': [
                         {'flavor_id': 'vanilla', 'tenant_id': 'tenant_id'}]})
        ])
        self.cloud.list_flavor_access('vanilla')
        self.assert_calls()

    def test_get_flavor_by_id(self):
        flavor_uri = '{endpoint}/flavors/1'.format(
            endpoint=fakes.COMPUTE_ENDPOINT)
        flavor_json = {'flavor': fakes.make_fake_flavor('1', 'vanilla')}

        self.register_uris([
            dict(method='GET', uri=flavor_uri, json=flavor_json),
        ])

        flavor1 = self.cloud.get_flavor_by_id('1')
        self.assertEqual('1', flavor1['id'])
        self.assertEqual({}, flavor1.extra_specs)
        flavor2 = self.cloud.get_flavor_by_id('1')
        self.assertEqual('1', flavor2['id'])
        self.assertEqual({}, flavor2.extra_specs)

    def test_get_flavor_with_extra_specs(self):
        flavor_uri = '{endpoint}/flavors/1'.format(
            endpoint=fakes.COMPUTE_ENDPOINT)
        flavor_extra_uri = '{endpoint}/flavors/1/os-extra_specs'.format(
            endpoint=fakes.COMPUTE_ENDPOINT)
        flavor_json = {'flavor': fakes.make_fake_flavor('1', 'vanilla')}
        flavor_extra_json = {'extra_specs': {'name': 'test'}}

        self.register_uris([
            dict(method='GET', uri=flavor_uri, json=flavor_json),
            dict(method='GET', uri=flavor_extra_uri, json=flavor_extra_json),
        ])

        flavor1 = self.cloud.get_flavor_by_id('1', get_extra=True)
        self.assertEqual('1', flavor1['id'])
        self.assertEqual({'name': 'test'}, flavor1.extra_specs)
        flavor2 = self.cloud.get_flavor_by_id('1', get_extra=False)
        self.assertEqual('1', flavor2['id'])
        self.assertEqual({}, flavor2.extra_specs)
