from sqlalchemy import Column, Integer, String, DateTime, Text
from sqlalchemy.orm import relationship
from datetime import datetime
from app.db.base import Base


class Category(Base):
    __tablename__ = "categories"

    id = Column(Integer, primary_key=True, index=True)
    name = Column(String, unique=True, index=True, nullable=False)
    description = Column(Text)
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    items = relationship("Item", back_populates="category")