from sqlalchemy import Column, String, Boolean, DateTime
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.sql import func
import uuid
from app.database import Base


class User(Base):
    """User model for authentication and ownership."""

    __tablename__ = "users"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    username = Column(String(50), unique=True, nullable=False, index=True)
    email = Column(String(255), unique=True, nullable=False, index=True)
    password_hash = Column(String(255), nullable=False)
    is_admin = Column(Boolean, default=False, nullable=False)
    created_at = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now(), nullable=False)