from __future__ import annotations

import logging
from typing import Optional

from redis.asyncio import Redis

from app.config import get_settings

logger = logging.getLogger(__name__)


def create_redis_client(redis_url: str) -> Optional[Redis]:
    if not redis_url:
        logger.warning("REDIS_URL not configured, Redis features disabled")
        return None
    logger.info("Connecting to Redis at %s", redis_url.split("@")[-1] if "@" in redis_url else redis_url)
    return Redis.from_url(
        redis_url,
        max_connections=10,
        socket_connect_timeout=5,
        socket_timeout=5,
        retry_on_timeout=True,
        decode_responses=True,
    )


async def close_redis(redis: Optional[Redis]) -> None:
    if redis:
        await redis.aclose()
        logger.info("Redis connection closed")