from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
import redis
from .settings import settings

# PostgreSQL Setup
engine = create_engine(settings.database_url)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
Base = declarative_base()

# Redis Setup
redis_client = redis.from_url(settings.redis_url, decode_responses=True)


# Dependency to get a DB session
def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()

# Dependency to get a Redis client
def get_redis():
    return redis_client