# study/jikimo_sf/sf_mrs_connect/models/redis_utils.py
import redis, json, logging

_logger = logging.getLogger(__name__)

class RedisClient:
    def __init__(self, host='localhost', port=6379, db=0):
        try:
            self.client = redis.Redis(host=host, port=port, db=db, decode_responses=True)
        except Exception as e:
            _logger.error(f"Redis init error: {e}")
            self.client = None

    def get_json(self, key):
        if not self.client:
            return None
        try:
            data = self.client.get(key)
            return json.loads(data) if data else None
        except Exception as e:
            _logger.error(f"Redis GET error [{key}]: {e}")
            return None

    def set_json(self, key, value, ex=3600):
        if not self.client:
            return
        try:
            self.client.set(key, json.dumps(value, ensure_ascii=False), ex=ex)
        except Exception as e:
            _logger.error(f"Redis SET error [{key}]: {e}")