# PATH: bot/client.py
from logging import getLogger
from hydrogram import Client
from bot.config import Telegram

logger = getLogger("bot")

def create_client() -> Client:
    base = dict(
        name="app",
        api_id=Telegram.API_ID,
        api_hash=Telegram.API_HASH,
        in_memory=True,
        sleep_threshold=-1,
        max_concurrent_transmissions=10,
    )

    if Telegram.SESSION_STRING:
        logger.info("Using SESSION_STRING auth")
        return Client(session_string=Telegram.SESSION_STRING, **base)

    if not Telegram.BOT_TOKEN:
        raise RuntimeError("Missing BOT_TOKEN and SESSION_STRING is empty.")
    logger.info("Using BOT_TOKEN auth")
    return Client(bot_token=Telegram.BOT_TOKEN, **base)