# -*- coding: utf-8 -*-
# Copyright 2014 matrix.org
#
# 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.
"""Contains constants from the specification."""


class Membership(object):

    """Represents the membership states of a user in a room."""
    INVITE = u"invite"
    JOIN = u"join"
    KNOCK = u"knock"
    LEAVE = u"leave"


class Feedback(object):

    """Represents the types of feedback a user can send in response to a
    message."""

    DELIVERED = u"d"
    READ = u"r"
    LIST = (DELIVERED, READ)


class PresenceState(object):
    """Represents the presence state of a user."""
    OFFLINE = 0
    BUSY = 1
    ONLINE = 2
    FREE_FOR_CHAT = 3