from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
import os

DATABASE_URL = "sqlite:///./app/ml_models/financial_advisor.db"

# Create the directory for the database if it doesn't exist
os.makedirs(os.path.dirname(DATABASE_URL.split("///")[-1]), exist_ok=True)

engine = create_engine(
    DATABASE_URL, connect_args={"check_same_thread": False}
)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

Base = declarative_base()

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

def create_db_and_tables():
    Base.metadata.create_all(bind=engine)