from sqlalchemy import ForeignKeyConstraint, Integer, PrimaryKeyConstraint, String, UniqueConstraint
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.orm.base import Mapped
from core.database import Base

class SClasses(Base):
    __tablename__ = 's_classes' #SClases
    __table_args__ = (        
        ForeignKeyConstraint(['tenant_id'], ['a76.tenants.id'], name='fk_sclasses_tenants'),
        ForeignKeyConstraint(['company_id'], ['a76.company.id'], name='fk_sclasses_company'),
        ForeignKeyConstraint(['class_id'], ['a76.clases.class_id'], name='fk_sclasses_classes'),
        PrimaryKeyConstraint('id', name='sclases_pk'),
        {'schema': 'a24'}
    )
    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    class_id: Mapped[int] = mapped_column(Integer, nullable=False) #Id de clase   
    tenant_id: Mapped[int] = mapped_column(Integer, nullable=False, index=True)
    company_id: Mapped[int] = mapped_column(Integer, nullable=True, index=True)
     
    stock_um: Mapped[str]  = mapped_column(String(5)) #Unidad de medida para existencia  
    us_tariff_code: Mapped[str]  = mapped_column(String(19)) #Fracción americana (USA)