#!/usr/bin/env python
#
# A library that provides a Python interface to the Telegram Bot API
# Copyright (C) 2015-2022
# Leandro Toledo de Souza <devs@python-telegram-bot.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser 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 Lesser Public License for more details.
#
# You should have received a copy of the GNU Lesser Public License
# along with this program.  If not, see [http://www.gnu.org/licenses/].
"""This module contains an object that represents a Telegram WebhookInfo."""

from typing import Any, List, Optional, TYPE_CHECKING

from telegram import TelegramObject
from telegram.utils.types import JSONDict
from telegram.utils.helpers import from_timestamp

if TYPE_CHECKING:
    from telegram import Bot


class WebhookInfo(TelegramObject):
    """This object represents a Telegram WebhookInfo.

    Contains information about the current status of a webhook.

    Objects of this class are comparable in terms of equality. Two objects of this class are
    considered equal, if their :attr:`url`, :attr:`has_custom_certificate`,
    :attr:`pending_update_count`, :attr:`ip_address`, :attr:`last_error_date`,
    :attr:`last_error_message`, :attr:`max_connections` and :attr:`allowed_updates` are equal.

    Args:
        url (:obj:`str`): Webhook URL, may be empty if webhook is not set up.
        has_custom_certificate (:obj:`bool`): :obj:`True`, if a custom certificate was provided for
            webhook certificate checks.
        pending_update_count (:obj:`int`): Number of updates awaiting delivery.
        ip_address (:obj:`str`, optional): Currently used webhook IP address.
        last_error_date (:obj:`int`, optional): Unix time for the most recent error that happened
            when trying to deliver an update via webhook.
        last_error_message (:obj:`str`, optional): Error message in human-readable format for the
            most recent error that happened when trying to deliver an update via webhook.
        max_connections (:obj:`int`, optional): Maximum allowed number of simultaneous HTTPS
            connections to the webhook for update delivery.
        allowed_updates (List[:obj:`str`], optional): A list of update types the bot is subscribed
            to. Defaults to all update types, except :attr:`telegram.Update.chat_member`.
        last_synchronization_error_date (:obj:`int`, optional): Unix time of the most recent error
            that happened when trying to synchronize available updates with Telegram datacenters.

            .. versionadded:: 13.12

    Attributes:
        url (:obj:`str`): Webhook URL.
        has_custom_certificate (:obj:`bool`): If a custom certificate was provided for webhook.
        pending_update_count (:obj:`int`): Number of updates awaiting delivery.
        ip_address (:obj:`str`): Optional. Currently used webhook IP address.
        last_error_date (:obj:`int`): Optional. Unix time for the most recent error that happened.
        last_error_message (:obj:`str`): Optional. Error message in human-readable format.
        max_connections (:obj:`int`): Optional. Maximum allowed number of simultaneous HTTPS
            connections.
        allowed_updates (List[:obj:`str`]): Optional. A list of update types the bot is subscribed
            to. Defaults to all update types, except :attr:`telegram.Update.chat_member`.
        last_synchronization_error_date (:obj:`int`): Optional. Unix time of the most recent error
            that happened when trying to synchronize available updates with Telegram datacenters.

            .. versionadded:: 13.12

    """

    __slots__ = (
        'allowed_updates',
        'url',
        'max_connections',
        'last_error_date',
        'ip_address',
        'last_error_message',
        'pending_update_count',
        'has_custom_certificate',
        'last_synchronization_error_date',
        '_id_attrs',
    )

    def __init__(
        self,
        url: str,
        has_custom_certificate: bool,
        pending_update_count: int,
        last_error_date: int = None,
        last_error_message: str = None,
        max_connections: int = None,
        allowed_updates: List[str] = None,
        ip_address: str = None,
        last_synchronization_error_date: int = None,
        **_kwargs: Any,
    ):
        # Required
        self.url = url
        self.has_custom_certificate = has_custom_certificate
        self.pending_update_count = pending_update_count

        # Optional
        self.ip_address = ip_address
        self.last_error_date = last_error_date
        self.last_error_message = last_error_message
        self.max_connections = max_connections
        self.allowed_updates = allowed_updates
        self.last_synchronization_error_date = last_synchronization_error_date

        self._id_attrs = (
            self.url,
            self.has_custom_certificate,
            self.pending_update_count,
            self.ip_address,
            self.last_error_date,
            self.last_error_message,
            self.max_connections,
            self.allowed_updates,
        )

    @classmethod
    def de_json(cls, data: Optional[JSONDict], bot: 'Bot') -> Optional['WebhookInfo']:
        """See :meth:`telegram.TelegramObject.de_json`."""
        data = cls._parse_data(data)

        if not data:
            return None

        data['last_error_date'] = from_timestamp(data.get('last_error_date'))
        data['last_synchronization_error_date'] = from_timestamp(
            data.get('last_synchronization_error_date')
        )

        return cls(bot=bot, **data)
