import telebot
from telebot.types import Message

class CommandProcessor:
    """Processes user input and dispatches the data to other services."""

    bot: telebot.TeleBot

    def __init__(self, token: str):
        if token is None or len(token) == 0:
            raise ValueError("Token should not be empty")
        self.bot = telebot.TeleBot(token)

    def run(self):
        """Runs a bot and polls for new messages indefinitely."""
        self.bot.register_message_handler(commands=['help', 'start'], callback=self.__command_help)
        self.bot.register_message_handler(commands=['add'], callback=self.__add_feed)
        self.bot.register_message_handler(commands=['list'], callback=self.__list_feeds)
        self.bot.register_message_handler(commands=['del'], callback=self.__delete_feed)

        self.bot.infinity_polling()

    def __command_help(self, message: Message):
        self.bot.reply_to(message, 'Commands: "/add", "/list", "/del", "/help".')

    def __add_feed(self, message: Message):
        self.bot.reply_to(message, 'Feed added (stub)')

    def __list_feeds(self, message: Message):
        self.bot.reply_to(message, 'Your feeds: (stub)')

    def __delete_feed(self, message: Message):
        self.bot.reply_to(message, 'Feed deleted: (stub)')