# -*- encoding: utf-8 -*-
#
# Copyright © 2012 New Dream Network, LLC (DreamHost)
#
# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
#
# 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.
"""Test listing resources.
"""

import datetime
import logging
import testscenarios

from oslo.config import cfg

from ceilometer.publisher import rpc
from ceilometer import sample
from ceilometer.tests import db as tests_db

from .base import FunctionalTest

load_tests = testscenarios.load_tests_apply_scenarios

LOG = logging.getLogger(__name__)


class TestListResources(FunctionalTest,
                        tests_db.MixinTestsWithBackendScenarios):

    SOURCE_DATA = {'test_list_resources': {}}

    def test_empty(self):
        data = self.get_json('/resources')
        self.assertEqual([], data)

    def test_instance_no_metadata(self):
        sample1 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id',
            'project-id',
            'resource-id',
            timestamp=datetime.datetime(2012, 7, 2, 10, 40),
            resource_metadata=None,
            source='test',
        )
        msg = rpc.meter_message_from_counter(
            sample1,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg)

        data = self.get_json('/resources')
        self.assertEqual(1, len(data))

    def test_instances(self):
        sample1 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id',
            'project-id',
            'resource-id',
            timestamp=datetime.datetime(2012, 7, 2, 10, 40),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample',
                               },
            source='test',
        )
        msg = rpc.meter_message_from_counter(
            sample1,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg)

        sample2 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id',
            'project-id',
            'resource-id-alternate',
            timestamp=datetime.datetime(2012, 7, 2, 10, 41),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample2',
                               },
            source='test',
        )
        msg2 = rpc.meter_message_from_counter(
            sample2,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg2)

        data = self.get_json('/resources')
        self.assertEqual(2, len(data))

    def test_instances_one(self):
        sample1 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id',
            'project-id',
            'resource-id',
            timestamp=datetime.datetime(2012, 7, 2, 10, 40),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample',
                               },
            source='test',
        )
        msg = rpc.meter_message_from_counter(
            sample1,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg)

        sample2 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id',
            'project-id',
            'resource-id-alternate',
            timestamp=datetime.datetime(2012, 7, 2, 10, 41),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample2',
                               },
            source='test',
        )
        msg2 = rpc.meter_message_from_counter(
            sample2,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg2)

        data = self.get_json('/resources/resource-id')
        self.assertEqual('resource-id', data['resource_id'])

    def test_with_source(self):
        sample1 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id',
            'project-id',
            'resource-id',
            timestamp=datetime.datetime(2012, 7, 2, 10, 40),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample',
                               },
            source='test_list_resources',
        )
        msg = rpc.meter_message_from_counter(
            sample1,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg)

        sample2 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id2',
            'project-id',
            'resource-id-alternate',
            timestamp=datetime.datetime(2012, 7, 2, 10, 41),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample2',
                               },
            source='not-test',
        )
        msg2 = rpc.meter_message_from_counter(
            sample2,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg2)

        data = self.get_json('/resources', q=[{'field': 'source',
                                               'value': 'test_list_resources',
                                               }])
        ids = [r['resource_id'] for r in data]
        self.assertEqual(['resource-id'], ids)

    def test_with_invalid_resource_id(self):
        sample1 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id',
            'project-id',
            'resource-id-1',
            timestamp=datetime.datetime(2012, 7, 2, 10, 40),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample',
                               },
            source='test_list_resources',
        )
        msg = rpc.meter_message_from_counter(
            sample1,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg)

        sample2 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id2',
            'project-id',
            'resource-id-2',
            timestamp=datetime.datetime(2012, 7, 2, 10, 41),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample2',
                               },
            source='test_list_resources',
        )
        msg2 = rpc.meter_message_from_counter(
            sample2,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg2)

        resp1 = self.get_json('/resources/resource-id-1')
        self.assertEqual(resp1["resource_id"], "resource-id-1")

        resp2 = self.get_json('/resources/resource-id-2')
        self.assertEqual(resp2["resource_id"], "resource-id-2")

        resp3 = self.get_json('/resources/resource-id-3', expect_errors=True)
        self.assertEqual(resp3.status_code, 400)

    def test_with_user(self):
        sample1 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id',
            'project-id',
            'resource-id',
            timestamp=datetime.datetime(2012, 7, 2, 10, 40),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample',
                               },
            source='test_list_resources',
        )
        msg = rpc.meter_message_from_counter(
            sample1,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg)

        sample2 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id2',
            'project-id',
            'resource-id-alternate',
            timestamp=datetime.datetime(2012, 7, 2, 10, 41),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample2',
                               },
            source='not-test',
        )
        msg2 = rpc.meter_message_from_counter(
            sample2,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg2)

        data = self.get_json('/resources', q=[{'field': 'user_id',
                                               'value': 'user-id',
                                               }])
        ids = [r['resource_id'] for r in data]
        self.assertEqual(['resource-id'], ids)

    def test_with_project(self):
        sample1 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id',
            'project-id',
            'resource-id',
            timestamp=datetime.datetime(2012, 7, 2, 10, 40),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample',
                               },
            source='test_list_resources',
        )
        msg = rpc.meter_message_from_counter(
            sample1,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg)

        sample2 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id2',
            'project-id2',
            'resource-id-alternate',
            timestamp=datetime.datetime(2012, 7, 2, 10, 41),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample2',
                               },
            source='not-test',
        )
        msg2 = rpc.meter_message_from_counter(
            sample2,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg2)

        data = self.get_json('/resources', q=[{'field': 'project_id',
                                               'value': 'project-id',
                                               }])
        ids = [r['resource_id'] for r in data]
        self.assertEqual(['resource-id'], ids)

    def test_with_user_non_admin(self):
        sample1 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id2',
            'project-id2',
            'resource-id-alternate',
            timestamp=datetime.datetime(2012, 7, 2, 10, 41),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample1',
                               },
            source='not-test',
        )
        msg2 = rpc.meter_message_from_counter(
            sample1,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg2)

        data = self.get_json('/resources',
                             headers={"X-Roles": "Member",
                                      "X-Project-Id": "project-id2"})
        ids = set(r['resource_id'] for r in data)
        self.assertEqual(set(['resource-id-alternate']), ids)

    def test_with_user_wrong_tenant(self):
        sample1 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id2',
            'project-id2',
            'resource-id-alternate',
            timestamp=datetime.datetime(2012, 7, 2, 10, 41),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample1',
                               },
            source='not-test',
        )
        msg2 = rpc.meter_message_from_counter(
            sample1,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg2)

        data = self.get_json('/resources',
                             headers={"X-Roles": "Member",
                                      "X-Project-Id": "project-wrong"})
        ids = set(r['resource_id'] for r in data)
        self.assertEqual(set(), ids)

    def test_metadata(self):
        sample1 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id',
            'project-id',
            'resource-id',
            timestamp=datetime.datetime(2012, 7, 2, 10, 40),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample',
                               'dict_properties': {'key': 'value'},
                               'ignored_list': ['not-returned'],
                               },
            source='test',
        )
        msg = rpc.meter_message_from_counter(
            sample1,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg)

        data = self.get_json('/resources')
        metadata = data[0]['metadata']
        self.assertEqual(
            [(u'dict_properties.key', u'value'),
             (u'display_name', u'test-server'),
             (u'tag', u'self.sample')
             ],
            list(sorted(metadata.iteritems())))

    def test_resource_meter_links(self):
        sample1 = sample.Sample(
            'instance',
            'cumulative',
            '',
            1,
            'user-id',
            'project-id',
            'resource-id',
            timestamp=datetime.datetime(2012, 7, 2, 10, 40),
            resource_metadata={'display_name': 'test-server',
                               'tag': 'self.sample',
                               },
            source='test_list_resources',
        )
        msg = rpc.meter_message_from_counter(
            sample1,
            cfg.CONF.publisher_rpc.metering_secret,
        )
        self.conn.record_metering_data(msg)

        data = self.get_json('/resources')
        links = data[0]['links']
        self.assertEqual(len(links), 2)
        self.assertEqual(links[0]['rel'], 'self')
        self.assertTrue((self.PATH_PREFIX + '/resources/resource-id')
                        in links[0]['href'])
        self.assertEqual(links[1]['rel'], 'instance')
        self.assertTrue((self.PATH_PREFIX + '/meters/instance?'
                         'q.field=resource_id&q.value=resource-id')
                        in links[1]['href'])