from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import Session, sessionmaker

SQLALCHEMY_DATABASE_URL = "sqlite:///./data/timmy_calm.db"

engine = create_engine(SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False})

SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

Base = declarative_base()


def create_tables():
    """Create all tables defined by models that have imported Base."""
    Base.metadata.create_all(bind=engine)


def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()