from sqlalchemy import Column, Integer, String, DateTime
from datetime import datetime
import pytz
from utils.auth import Base

class AdminUser(Base):
    """
    SQLAlchemy model representing an admin user.

    Attributes:
        id (int): Primary key identifier.
        username (str): Unique admin username.
        password_hash (str): Hashed password for authentication.
        created_at (datetime): Timestamp of account creation (stored in Europe/Bratislava timezone).
    """
    __tablename__ = "admin_users"
    id = Column(Integer, primary_key=True)
    username = Column(String, unique=True, nullable=False)
    password_hash = Column(String, nullable=False)
    created_at = Column(DateTime, default=lambda: datetime.now(pytz.timezone('Europe/Bratislava')))