from ...db.config.config import get_engine_configuration
from sqlalchemy import create_engine as sqlalchemy_create_engine
from functools import cache
from sqlalchemy.orm import sessionmaker


import logging
logger = logging.getLogger(__name__)

@cache
def create_engine(*, engine_string=None, echo=None):
    logger.debug(f"create_engine {engine_string}")
    if engine_string is None:
        engine_string, echo = get_engine_configuration()
    engine = sqlalchemy_create_engine(engine_string, echo=echo=="true", future=True) # TODO
    Session = sessionmaker(engine)
    session = Session()
    return engine, session