# -*- 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.

from twisted.internet import defer

from synapse.http.servlet import (
    RestServlet, parse_string, parse_integer
)
from synapse.events.utils import (
    serialize_event, format_event_for_client_v2_without_room_id,
)

from ._base import client_v2_patterns

import logging

logger = logging.getLogger(__name__)


class NotificationsServlet(RestServlet):
    PATTERNS = client_v2_patterns("/notifications$", releases=())

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

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

        from_token = parse_string(request, "from", required=False)
        limit = parse_integer(request, "limit", default=50)

        limit = min(limit, 500)

        push_actions = yield self.store.get_push_actions_for_user(
            user_id, from_token, limit
        )

        receipts_by_room = yield self.store.get_receipts_for_user_with_orderings(
            user_id, 'm.read'
        )

        notif_event_ids = [pa["event_id"] for pa in push_actions]
        notif_events = yield self.store.get_events(notif_event_ids)

        returned_push_actions = []

        next_token = None

        for pa in push_actions:
            returned_pa = {
                "room_id": pa["room_id"],
                "profile_tag": pa["profile_tag"],
                "actions": pa["actions"],
                "ts": pa["received_ts"],
                "event": serialize_event(
                    notif_events[pa["event_id"]],
                    self.clock.time_msec(),
                    event_format=format_event_for_client_v2_without_room_id,
                ),
            }

            if pa["room_id"] not in receipts_by_room:
                returned_pa["read"] = False
            else:
                receipt = receipts_by_room[pa["room_id"]]

                returned_pa["read"] = (
                    receipt["topological_ordering"] >= pa["topological_ordering"] or (
                        receipt["topological_ordering"] == pa["topological_ordering"] and
                        receipt["stream_ordering"] >= pa["stream_ordering"]
                    )
                )
            returned_push_actions.append(returned_pa)
            next_token = pa["stream_ordering"]

        defer.returnValue((200, {
            "notifications": returned_push_actions,
            "next_token": next_token,
        }))


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

@@ -2727,27 +2727,25 @@
 ng%22%5D
- %3E= pa%5B%22topological
+, receipt%5B%22stream
 _ord
@@ -2755,13 +2755,8 @@
 ng%22%5D
- or (
 %0A   
@@ -2772,81 +2772,14 @@
     
-        receipt%5B%22topological_ordering%22%5D == pa%5B%22topological_ordering%22%5D and
+) %3E= (
 %0A   
@@ -2799,27 +2799,23 @@
     
-    receipt%5B%22stream
+pa%5B%22topological
 _ord
@@ -2821,19 +2821,17 @@
 dering%22%5D
- %3E=
+,
  pa%5B%22str
@@ -2849,30 +2849,8 @@
 g%22%5D%0A
-                    )%0A
     

Use tuple comparison