"""Cache Manager for Redis"""
import json
import logging
from typing import Optional, Any

logger = logging.getLogger(__name__)

class CacheManager:
    """Redis cache manager"""
    
    def __init__(self, redis_url: str):
        self.redis_url = redis_url
        self.is_connected = False
        self.cache = {}  # Simplified in-memory cache
        
    async def connect(self):
        """Connect to Redis"""
        self.is_connected = True
        logger.info("Connected to cache")
    
    async def close(self):
        """Close Redis connection"""
        self.is_connected = False
        logger.info("Disconnected from cache")
    
    async def get(self, key: str) -> Optional[str]:
        """Get value from cache"""
        return self.cache.get(key)
    
    async def set(self, key: str, value: str, expire: Optional[int] = None):
        """Set value in cache"""
        self.cache[key] = value