# -*- 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.api.constants import EventTypes, Membership, RoomVersions
from synapse.types import RoomID, UserID

from tests import unittest
from tests.utils import create_room, setup_test_homeserver


class RoomMemberStoreTestCase(unittest.TestCase):
    @defer.inlineCallbacks
    def setUp(self):
        hs = yield setup_test_homeserver(
            self.addCleanup, resource_for_federation=Mock(), http_client=None
        )
        # We can't test the RoomMemberStore on its own without the other event
        # storage logic
        self.store = hs.get_datastore()
        self.event_builder_factory = hs.get_event_builder_factory()
        self.event_creation_handler = hs.get_event_creation_handler()

        self.u_alice = UserID.from_string("@alice:test")
        self.u_bob = UserID.from_string("@bob:test")

        # User elsewhere on another host
        self.u_charlie = UserID.from_string("@charlie:elsewhere")

        self.room = RoomID.from_string("!abc123:test")

        yield create_room(hs, self.room.to_string(), self.u_alice.to_string())

    @defer.inlineCallbacks
    def inject_room_member(self, room, user, membership, replaces_state=None):
        builder = self.event_builder_factory.new(
            RoomVersions.V1,
            {
                "type": EventTypes.Member,
                "sender": user.to_string(),
                "state_key": user.to_string(),
                "room_id": room.to_string(),
                "content": {"membership": membership},
            }
        )

        event, context = yield self.event_creation_handler.create_new_client_event(
            builder
        )

        yield self.store.persist_event(event, context)

        defer.returnValue(event)

    @defer.inlineCallbacks
    def test_one_member(self):
        yield self.inject_room_member(self.room, self.u_alice, Membership.JOIN)

        self.assertEquals(
            [self.room.to_string()],
            [
                m.room_id
                for m in (
                    yield self.store.get_rooms_for_user_where_membership_is(
                        self.u_alice.to_string(), [Membership.JOIN]
                    )
                )
            ],
        )