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

class Brand(Base):
    __tablename__ = "brands"

    brand_id = Column(String(26), primary_key=True)
    name = Column(String(100), unique=True, nullable=False)
    slug = Column(String(100), unique=True, nullable=False)
    logo_url = Column(String(500), nullable=True)
    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())

    device_types_rel = relationship("BrandDeviceType", back_populates="brand", cascade="all, delete-orphan")

    @property
    def device_types(self):
        return [dt.device_type for dt in self.device_types_rel]