# -*- coding: utf-8 -*-
# Copyright 2014-2016 OpenMarket Ltd
#
# 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 mock import Mock

from twisted.internet import defer

from synapse.handlers.directory import DirectoryHandler
from synapse.types import RoomAlias

from tests import unittest
from tests.utils import setup_test_homeserver


class DirectoryHandlers(object):
    def __init__(self, hs):
        self.directory_handler = DirectoryHandler(hs)


class DirectoryTestCase(unittest.TestCase):
    """ Tests the directory service. """

    @defer.inlineCallbacks
    def setUp(self):
        self.mock_federation = Mock()
        self.mock_registry = Mock()

        self.query_handlers = {}

        def register_query_handler(query_type, handler):
            self.query_handlers[query_type] = handler
        self.mock_registry.register_query_handler = register_query_handler

        hs = yield setup_test_homeserver(
            http_client=None,
            resource_for_federation=Mock(),
            federation_client=self.mock_federation,
            federation_registry=self.mock_registry,
        )
        hs.handlers = DirectoryHandlers(hs)

        self.handler = hs.get_handlers().directory_handler

        self.store = hs.get_datastore()

        self.my_room = RoomAlias.from_string("#my-room:test")
        self.your_room = RoomAlias.from_string("#your-room:test")
        self.remote_room = RoomAlias.from_string("#another:remote")

    @defer.inlineCallbacks
    def test_get_local_association(self):
        yield self.store.create_room_alias_association(
            self.my_room, "!8765qwer:test", ["test"]
        )

        result = yield self.handler.get_association(self.my_room)

        self.assertEquals({
            "room_id": "!8765qwer:test",
            "servers": ["test"],
        }, result)

    @defer.inlineCallbacks
    def test_get_remote_association(self):
        self.mock_federation.make_query.return_value = defer.succeed(
            {"room_id": "!8765qwer:test", "servers": ["test", "remote"]}
        )

        result = yield self.handler.get_association(self.remote_room)

        self.assertEquals({
            "room_id": "!8765qwer:test",
            "servers": ["test", "remote"],
        }, result)
        self.mock_federation.make_query.assert_called_with(
            destination="remote",
            query_type="directory",
            args={
                "room_alias": "#another:remote",
            },
            retry_on_dns_fail=False,
            ignore_backoff=True,
        )

    @defer.inlineCallbacks
    def test_incoming_fed_query(self):
        yield self.store.create_room_alias_association(
            self.your_room, "!8765asdf:test", ["test"]
        )

        response = yield self.query_handlers["directory"](
            {"room_alias": "#your-room:test"}
        )

        self.assertEquals({
            "room_id": "!8765asdf:test",
            "servers": ["test"],
        }, response)