import hashlib

from sqlalchemy import select
from sqlalchemy.orm import Session

from app.db.base import Base
from app.db.session import SessionLocal, engine
from app.models import TestUser


def init_db() -> None:
    Base.metadata.create_all(bind=engine)
    seed_test_data()


def seed_test_data() -> None:
    with SessionLocal() as db:
        existing_user = db.scalar(select(TestUser).where(TestUser.username == "admin_test"))
        if existing_user:
            return

        password_hash = hashlib.sha256("change_me_123".encode("utf-8")).hexdigest()
        db.add(TestUser(username="admin_test", password_hash=password_hash))
        db.commit()