database.py

# database.py

from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
import os

DATABASE_URL = os.getenv("DATABASE_URL", "sqlite:///./scam_detection.db")

engine = create_engine(
    DATABASE_URL,
    connect_args={"check_same_thread": False} if "sqlite" in DATABASE_URL else {}
)

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