import redis

from ZhuQue.Config.config import Config

config = Config()


class RedisClient:
    def __new__(cls, *args, **kwargs):
        if not hasattr(cls, '_instance'):
            cls._instance = redis.Redis(*args, **kwargs)
        return cls._instance


def get_redis_connection():
    # 配置 Redis 连接池
    pool = redis.ConnectionPool(
        host=config.get('Redis', 'HOST'),  # Redis 服务器地址
        port=int(config.get('Redis', 'PORT')),  # Redis 服务器端口
        db=0,  # Redis 数据库索引
        max_connections=20  # 连接池最大连接数
    )

    # 返回一个 Redis 客户端实例
    return RedisClient(connection_pool=pool)