from pathlib import Path
from sqlalchemy import create_engine
from sqlalchemy.orm import DeclarativeBase, Session, sessionmaker

DATA_DIR = Path(__file__).resolve().parent.parent.parent / "data"
DATA_DIR.mkdir(exist_ok=True)
DB_PATH = DATA_DIR / "planner.db"

engine = create_engine(f"sqlite:///{DB_PATH}", echo=False)
SessionLocal = sessionmaker(bind=engine, class_=Session, expire_on_commit=False)


class Base(DeclarativeBase):
    pass


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