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


class FractionRuleOctave(Base):
    __tablename__ = "fraction_rule_octave"
    __table_args__ = (
        PrimaryKeyConstraint('id', name='fraction_rule_octave_pkey'),
        UniqueConstraint('permission', 'line', 'fraction', name='uq_fraction_rule_octave_permission_line_fraction'),
        ForeignKeyConstraint(['tenant_id'], ['a76.tenants.id'], name='fk_fraction_rule_octave_tenant'),
        {"schema": "a76"}
    )
    
    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    permission: Mapped[str] = mapped_column(String(20))
    line: Mapped[int] = mapped_column(Integer)
    fraction: Mapped[str] = mapped_column(String(10))
    tenant_id: Mapped[int] = mapped_column(Integer, nullable=False, index=True)