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

load_dotenv()

SQLALCHEMY_DATABASE_URL = os.getenv("DATABASE_URL")

engine = create_engine(
    SQLALCHEMY_DATABASE_URL,
    pool_pre_ping=True,
    pool_recycle=300,
    echo=False
)

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

Base = declarative_base()

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