# -*- coding: utf-8 -*-
# Copyright 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.

import logging

from six import string_types
from six.moves import http_client

from twisted.internet import defer

from synapse.api.errors import Codes, SynapseError
from synapse.http.servlet import (
    RestServlet,
    assert_params_in_dict,
    parse_json_object_from_request,
)

from ._base import client_patterns

logger = logging.getLogger(__name__)


class ReportEventRestServlet(RestServlet):
    PATTERNS = client_patterns("/rooms/(?P<room_id>[^/]*)/report/(?P<event_id>[^/]*)$")

    def __init__(self, hs):
        super(ReportEventRestServlet, self).__init__()
        self.hs = hs
        self.auth = hs.get_auth()
        self.clock = hs.get_clock()
        self.store = hs.get_datastore()

    @defer.inlineCallbacks
    def on_POST(self, request, room_id, event_id):
        requester = yield self.auth.get_user_by_req(request)
        user_id = requester.user.to_string()

        body = parse_json_object_from_request(request)
        assert_params_in_dict(body, ("reason", "score"))

        if not isinstance(body["reason"], string_types):
            raise SynapseError(
                http_client.BAD_REQUEST,
                "Param 'reason' must be a string",
                Codes.BAD_JSON,
            )
        if not isinstance(body["score"], int):
            raise SynapseError(
                http_client.BAD_REQUEST,
                "Param 'score' must be an integer",
                Codes.BAD_JSON,
            )

        yield self.store.add_event_report(
            room_id=room_id,
            event_id=event_id,
            user_id=user_id,
            reason=body["reason"],
            content=body,
            received_ts=self.clock.time_msec(),
        )

        return (200, {})


def register_servlets(hs, http_server):
    ReportEventRestServlet(hs).register(http_server)