# Pyrogram - Telegram MTProto API Client Library for Python
# Copyright (C) 2017-2019 Dan Tès <https://github.com/delivrance>
#
# This file is part of Pyrogram.
#
# Pyrogram 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.
#
# Pyrogram 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 Pyrogram.  If not, see <http://www.gnu.org/licenses/>.

from typing import Union

from pyrogram.api import functions
from ...ext import BaseClient


class UnpinChatMessage(BaseClient):
    def unpin_chat_message(
        self,
        chat_id: Union[int, str]
    ) -> bool:
        """Unpin a message in a group, channel or your own chat.
        You must be an administrator in the chat for this to work and must have the "can_pin_messages" admin
        right in the supergroup or "can_edit_messages" admin right in the channel.

        Parameters:
            chat_id (``int`` | ``str``):
                Unique identifier (int) or username (str) of the target chat.

        Returns:
            ``bool``: True on success.

        Example:
            .. code-block:: python

                app.unpin_chat_message(chat_id)
        """
        self.send(
            functions.messages.UpdatePinnedMessage(
                peer=self.resolve_peer(chat_id),
                id=0
            )
        )

        return True