# app/database.py
#!/usr/bin/env python3

from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
from app.config import settings

Base = declarative_base()
engine = create_engine(settings.database_url, connect_args={"check_same_thread": False})
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

def init_db():
    """Call this once (e.g. on startup) to create tables if they don't exist."""
    Base.metadata.create_all(bind=engine)

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