from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, DeclarativeBase
from dotenv import load_dotenv
import os

load_dotenv()

DATABASE_URL = os.getenv(
    "DATABASE_URL",
    "postgresql://payroll_user:changeme@localhost:5432/personal_payroll_db"
)

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


class Base(DeclarativeBase):
    pass


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