from sqlalchemy import Column, String, Boolean, DateTime, ForeignKey
from sqlalchemy.sql import func
from sqlalchemy.orm import relationship
from app.core.database.db_session import Base

class Category(Base):
    __tablename__ = "categories"

    category_id = Column(String(26), primary_key=True)
    parent_category_id = Column(String(26), ForeignKey("categories.category_id", ondelete="SET NULL"), nullable=True)
    name = Column(String(100), nullable=False)
    slug = Column(String(100), unique=True, nullable=False)
    description = Column(String(500), nullable=True)
    image_url = Column(String(500), nullable=True)
    sort_order = Column(String(10), default="0")
    is_parent_feature = Column(Boolean, default=False, nullable=False)
    is_active = Column(Boolean, default=True)
    created_at = Column(DateTime, server_default=func.now())
    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())

    parent = relationship("Category", remote_side=[category_id], backref="children")