#!/usr/bin/env python3
# The MIT License (MIT)
# Copyright (c) 2020 Dineshkarthik Raveendran

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
# OR OTHER DEALINGS IN THE SOFTWARE.
"""Random Wikipedia article Telegram bot."""
from telebot import TeleBot, types
import requests

bot = TeleBot("<YOUR_ACCESS_TOKEN>")


def get_article():
    resp = requests.get("https://en.wikipedia.org/wiki/Special:Random")
    article_name = resp.url.split("/")[-1]
    url = f"https://en.wikipedia.org/api/rest_v1/page/summary/{article_name}"
    return requests.get(url).json()


@bot.message_handler(commands=["random"])
def send_random_article(message):
    """/random."""
    article = get_article()
    msg_content = "<b>{0}</b> <a href='{1}'>&#8204;</a>\n{2}".format(
        article["title"],
        article.get("thumbnail", {}).get("source", ""),
        article["extract"],
    )
    markup = types.ReplyKeyboardMarkup(one_time_keyboard=True, row_width=1)
    markup.add("Read-Wiki", "Skip")
    msg = bot.send_message(
        message.chat.id, msg_content, reply_markup=markup, parse_mode="html",
    )
    bot.register_next_step_handler(msg, send_article_url, article["content_urls"])


def send_article_url(message, article_urls):
    if message.text == "Read-Wiki":
        bot.send_message(message.chat.id, article_urls["desktop"]["page"])


@bot.message_handler(commands=["start", "help"])
def send_instructions(message):
    """/start, /help"""
    msg_content = (
        "*Available commands:*\n\n" "/random - get summary of random Wikipedia article"
    )
    bot.send_message(
        message.chat.id, msg_content, parse_mode="markdown",
    )


bot.polling(none_stop=True)