'''
Proof of concept to send messages to bot, and get reply using keyboard buttons.

Based on:
https://docs.python-telegram-bot.org/en/stable/examples.inlinekeyboard.html
and a bit of:
https://docs.python-telegram-bot.org/en/stable/examples.echobot.html
'''


import logging

import yaml
from telegram import InlineKeyboardButton, ReplyKeyboardMarkup, Update

from telegram.ext import (
    Application,
    CommandHandler,
    ContextTypes,
    MessageHandler,
    filters,
)

logging.basicConfig(format="%(asctime)s - %(name)s - %(levelname)s - %(message)s", level=logging.INFO)
# set higher logging level for httpx to avoid all GET and POST requests being logged
logging.getLogger("httpx").setLevel(logging.WARNING)
logger = logging.getLogger(__name__)


async def start(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
    """Send message on `/start`."""

    # Get user that sent /start and log their name
    user = update.message.from_user
    logger.info("User %s started the conversation.", user.first_name)

    # Build InlineKeyboard where each button has a displayed text
    # and a string as callback_data

    # The keyboard is a list of button rows, where each row is in turn

    # a list (hence `[[...]]`).

    keyboard = [
        [
            InlineKeyboardButton("/1", callback_data='/2'),
            InlineKeyboardButton("/2", callback_data='/2'),
        ]
    ]

    reply_markup = ReplyKeyboardMarkup(keyboard)

    # Send message with text and appended InlineKeyboard

    await update.message.reply_text("Start handler, Choose a route", reply_markup=reply_markup)

    # Tell ConversationHandler that we're in state `FIRST` now

    return None


async def one(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
    """Send a message when the command /1 is issued."""

    await update.message.reply_text("First")


async def two(update: Update, context: ContextTypes.DEFAULT_TYPE) -> None:
    """Send a message when the command /2 is issued."""

    await update.message.reply_text("Second")


def main() -> None:
    """Run the bot."""

    # Create the Application and pass it your bot's token.
    with open("src/config.yml", "r") as file:
        config = yaml.safe_load(file)

    application = Application.builder().token(config["telegram"]["token"]).build()

    # Add command handlers
    application.add_handler(CommandHandler("1", one))
    application.add_handler(CommandHandler("2", two))
    # Everything except the commands match start
    application.add_handler(MessageHandler(filters.TEXT & ~filters.COMMAND, start))
    # Run the bot until the user presses Ctrl-C

    application.run_polling(allowed_updates=Update.ALL_TYPES)


if __name__ == "__main__":
    main()