import json

from orm.notification import Notification
from services.db import local_session
from services.rediscache import redis


def handle_reaction(notification: dict[str, str | int]):
    """создаеёт новое хранимое уведомление"""
    try:
        with local_session() as session:
            n = Notification(**notification)
            session.add(n)
            session.commit(n)
    except Exception as e:
        session.rollback()
        print(f"[listener.handle_reaction] error: {str(e)}")


def stop(pubsub):
    pubsub.unsubscribe()
    pubsub.close()


def start():
    pubsub = redis.pubsub()
    pubsub.subscribe("reaction")
    try:
        # Бесконечный цикл прослушивания
        while True:
            msg = pubsub.get_message()
            handle_reaction(json.loads(msg["data"]))
    except Exception:
        pass
    finally:
        stop(pubsub)