#  Hydrogram - Telegram MTProto API Client Library for Python
#  Copyright (C) 2017-2023 Dan <https://github.com/delivrance>
#  Copyright (C) 2023-present Hydrogram <https://hydrogram.org>
#
#  This file is part of Hydrogram.
#
#  Hydrogram is free software: you can redistribute it and/or modify
#  it under the terms of the GNU Lesser General Public License as published
#  by the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  Hydrogram 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 Lesser General Public License for more details.
#
#  You should have received a copy of the GNU Lesser General Public License
#  along with Hydrogram.  If not, see <http://www.gnu.org/licenses/>.

from __future__ import annotations

import hydrogram
from hydrogram import raw


class LeaveChat:
    async def leave_chat(self: hydrogram.Client, chat_id: int | str, delete: bool = False):
        """Leave a group chat or channel.

        .. include:: /_includes/usable-by/users-bots.rst

        Parameters:
            chat_id (``int`` | ``str``):
                Unique identifier for the target chat or username of the target channel/supergroup
                (in the format @username).

            delete (``bool``, *optional*):
                Deletes the group chat dialog after leaving (for simple group chats, not supergroups).
                Defaults to False.

        Example:
            .. code-block:: python

                # Leave chat or channel
                await app.leave_chat(chat_id)

                # Leave basic chat and also delete the dialog
                await app.leave_chat(chat_id, delete=True)
        """
        peer = await self.resolve_peer(chat_id)

        if isinstance(peer, raw.types.InputPeerChannel):
            return await self.invoke(
                raw.functions.channels.LeaveChannel(channel=await self.resolve_peer(chat_id))
            )
        if isinstance(peer, raw.types.InputPeerChat):
            r = await self.invoke(
                raw.functions.messages.DeleteChatUser(
                    chat_id=peer.chat_id, user_id=raw.types.InputUserSelf()
                )
            )

            if delete:
                await self.invoke(raw.functions.messages.DeleteHistory(peer=peer, max_id=0))

            return r
        return None
