# matrix-appservice-kakaotalk - A Matrix-KakaoTalk puppeting bridge.
# Copyright (C) 2022 Tulir Asokan, Andrew Ferrazzutti
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.
from typing import Optional, Union

from attr import dataclass

from mautrix.types import SerializableAttrs

from ..bson import Long
from ..user.channel_user import ChannelUser
from ..attachment import Attachment
from .chat_type import ChatType


@dataclass
class ChatTypeComponent(SerializableAttrs):
    type: ChatType # Substitute for T, where T extends ChatType = ChatType

@dataclass(kw_only=True)
class Chat(ChatTypeComponent):
    text: Optional[str] = None
    attachment: Optional[Attachment] = None
    supplement: Optional[dict] = None


@dataclass
class TypedChat(Chat, ChatTypeComponent):
    """Substitute for TypedChat<T extends ChatType> = Chat & ChatTypeComponent<T>"""
    pass


@dataclass
class ChatLogged(SerializableAttrs):
    logId: Long

@dataclass
class ChatLoggedType(ChatLogged):
    type: ChatType

@dataclass
class ChatLogLinked(ChatLogged):
    prevLogId: Long


@dataclass
class ChatWritten(Chat):
    sender: ChannelUser
    sendAt: int
    messageId: Union[int, Long]


@dataclass
class Chatlog(ChatLogLinked, ChatWritten):
    pass


@dataclass
class TypedChatlog(Chatlog, TypedChat):
    """Substitute for TypedChatlog<T extends ChatType> = Chatlog & TypedChat<T>"""
    pass


@dataclass(kw_only=True)
class ChatOptions(SerializableAttrs):
    shout: Optional[bool] = None


__all__ = [
    "ChatTypeComponent",
    "Chat",
    "TypedChat",
    "ChatLogged",
    "ChatLoggedType",
    "ChatLogLinked",
    "ChatWritten",
    "Chatlog",
    "TypedChatlog",
    "ChatOptions",
]