#!/usr/bin/env python3

from telegram import Bot

from db import get_conn, Subscriber
from config import BOT_TOKEN, MANAGEMENT_CHAT


def send_users_list(bot: Bot = None, conn=None):
    if conn is None:
        conn = get_conn(read_only=True)

    if not bot:
        bot = Bot(BOT_TOKEN)

    subs = conn.root.subscribers.values()

    messages = [f'Count: {len(subs)}\n']
    for sub in subs:  # type: Subscriber
        msg = f'<code>{sub.uid:>14}</code> '
        if sub.uid < 0:
            msg += str(sub.name)
        else:
            msg += f'<a href="tg://user?id={sub.uid}">{sub.name}</a>'
        messages.append(msg)

    for i in range(0, len(messages), 40):
        bot.send_message(MANAGEMENT_CHAT, '\n'.join(messages[i:i+40]), parse_mode='html')

    print('User list was sent to the management chat')
    conn.close()


if __name__ == '__main__':
    send_users_list()