# Copyright 2014 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 twisted.internet import defer
from tests import unittest

from synapse.api.constants import EventTypes
from synapse.events import FrozenEvent
from synapse.handlers.federation import FederationHandler
from synapse.server import HomeServer

from mock import NonCallableMock, ANY, Mock

from ..utils import MockKey


class FederationTestCase(unittest.TestCase):

    def setUp(self):

        self.mock_config = NonCallableMock()
        self.mock_config.signing_key = [MockKey()]

        self.state_handler = NonCallableMock(spec_set=[
            "annotate_context_with_state",
        ])

        self.auth = NonCallableMock(spec_set=[
            "check",
            "check_host_in_room",
        ])

        self.hostname = "test"
        hs = HomeServer(
            self.hostname,
            db_pool=None,
            datastore=NonCallableMock(spec_set=[
                "persist_event",
                "store_room",
                "get_room",
                "get_destination_retry_timings",
                "set_destination_retry_timings",
            ]),
            resource_for_federation=NonCallableMock(),
            http_client=NonCallableMock(spec_set=[]),
            notifier=NonCallableMock(spec_set=["on_new_room_event"]),
            handlers=NonCallableMock(spec_set=[
                "room_member_handler",
                "federation_handler",
            ]),
            config=self.mock_config,
            auth=self.auth,
            state_handler=self.state_handler,
            keyring=Mock(),
        )

        self.datastore = hs.get_datastore()
        self.handlers = hs.get_handlers()
        self.notifier = hs.get_notifier()
        self.hs = hs

        self.handlers.federation_handler = FederationHandler(self.hs)

    @defer.inlineCallbacks
    def test_msg(self):
        pdu = FrozenEvent({
            "type": EventTypes.Message,
            "room_id": "foo",
            "content": {"msgtype": u"fooo"},
            "origin_server_ts": 0,
            "event_id": "$a:b",
            "user_id":"@a:b",
            "origin": "b",
            "auth_events": [],
            "hashes": {"sha256":"AcLrgtUIqqwaGoHhrEvYG1YLDIsVPYJdSRGhkp3jJp8"},
        })

        self.datastore.persist_event.return_value = defer.succeed(None)
        self.datastore.get_room.return_value = defer.succeed(True)
        self.auth.check_host_in_room.return_value = defer.succeed(True)

        def annotate(ev, context, old_state=None):
            context.current_state = {}
            context.auth_events = {}
            return defer.succeed(False)
        self.state_handler.annotate_context_with_state.side_effect = annotate

        yield self.handlers.federation_handler.on_receive_pdu(
            "fo", pdu, False
        )

        self.datastore.persist_event.assert_called_once_with(
            ANY,
            is_new_state=True,
            backfilled=False,
            current_state=None,
            context=ANY,
        )

        self.state_handler.annotate_context_with_state.assert_called_once_with(
            ANY,
            ANY,
            old_state=None,
        )

        self.auth.check.assert_called_once_with(ANY, auth_events={})

        self.notifier.on_new_room_event.assert_called_once_with(
            ANY,
            extra_users=[]
        )