# Copyright 2012 OpenStack Foundation
# 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 ceilometerclient.openstack.common.apiclient import client
from ceilometerclient.openstack.common.apiclient import fake_client
from ceilometerclient.tests.unit import utils
import ceilometerclient.v2.resources


fixtures = {
    '/v2/resources?meter_links=0': {
        'GET': (
            {},
            [
                {
                    'resource_id': 'a',
                    'project_id': 'project_bla',
                    'user_id': 'freddy',
                    'metadata': {'zxc_id': 'bla'},
                },
                {
                    'resource_id': 'b',
                    'project_id': 'dig_the_ditch',
                    'user_id': 'joey',
                    'metadata': {'zxc_id': 'foo'},
                },
            ]
        ),
    },
    '/v2/resources?q.field=resource_id&q.op=&q.type=&q.value=a&meter_links=0':
    {
        'GET': (
            {},
            [
                {
                    'resource_id': 'a',
                    'project_id': 'project_bla',
                    'user_id': 'freddy',
                    'metadata': {'zxc_id': 'bla'},
                },
            ]
        ),
    },
    '/v2/resources?meter_links=1': {
        'GET': (
            {},
            [
                {
                    'resource_id': 'c',
                    'project_id': 'project_blah',
                    'user_id': 'fred',
                    'metadata': {'zxc_id': 'blah'},
                },
                {
                    'resource_id': 'd',
                    'project_id': 'bury_the_ditch',
                    'user_id': 'jack',
                    'metadata': {'zxc_id': 'foobar'},
                },
            ]
        ),
    },
    '/v2/resources/a':
    {
        'GET': (
            {},
            {
                'resource_id': 'a',
                'project_id': 'project_bla',
                'user_id': 'freddy',
                'metadata': {'zxc_id': 'bla'},
            },
        ),
    },
}


class ResourceManagerTest(utils.BaseTestCase):

    def setUp(self):
        super(ResourceManagerTest, self).setUp()
        self.http_client = fake_client.FakeHTTPClient(fixtures=fixtures)
        self.api = client.BaseClient(self.http_client)
        self.mgr = ceilometerclient.v2.resources.ResourceManager(self.api)

    def test_list_all(self):
        resources = list(self.mgr.list())
        expect = [
            'GET', '/v2/resources?meter_links=0'
        ]
        self.http_client.assert_called(*expect)
        self.assertEqual(len(resources), 2)
        self.assertEqual(resources[0].resource_id, 'a')
        self.assertEqual(resources[1].resource_id, 'b')

    def test_list_all_with_links_enabled(self):
        resources = list(self.mgr.list(links=True))
        expect = [
            'GET', '/v2/resources?meter_links=1'
        ]
        self.http_client.assert_called(*expect)
        self.assertEqual(2, len(resources))
        self.assertEqual('c', resources[0].resource_id)
        self.assertEqual('d', resources[1].resource_id)

    def test_list_one(self):
        resource = self.mgr.get(resource_id='a')
        expect = [
            'GET', '/v2/resources/a'
        ]
        self.http_client.assert_called(*expect)
        self.assertIsNotNone(resource)
        self.assertEqual(resource.resource_id, 'a')

    def test_list_by_query(self):
        resources = list(self.mgr.list(q=[{"field": "resource_id",
                                           "value": "a"},
                                          ]))
        expect = [
            'GET', '/v2/resources?q.field=resource_id&q.op='
            '&q.type=&q.value=a&meter_links=0'
        ]
        self.http_client.assert_called(*expect)
        self.assertEqual(len(resources), 1)
        self.assertEqual(resources[0].resource_id, 'a')

    def test_get_from_resource_class(self):
        resource = self.mgr.get(resource_id='a')
        self.assertIsNotNone(resource)
        resource.get()
        expect = [
            'GET', '/v2/resources/a'
        ]
        self.http_client.assert_called(*expect, pos=0)
        self.http_client.assert_called(*expect, pos=1)
        self.assertEqual('a', resource.resource_id)
