import logging
from redis.asyncio import Redis

from app.config import settings

logger = logging.getLogger(__name__)

redis_client: Redis | None = None


async def get_redis() -> Redis:
    global redis_client
    if redis_client is None:
        redis_client = Redis(
            host=settings.redis_host,
            port=settings.redis_port,
            password=settings.redis_password or None,
            db=settings.redis_db,
            decode_responses=True,
        )
    return redis_client


async def close_redis() -> None:
    global redis_client
    if redis_client:
        await redis_client.aclose()
        redis_client = None