from sqlalchemy import Column, Float, ForeignKey, String, UniqueConstraint

from app import db
from app.models.base import default_uuid


class LabProfileNorm(db.Model):
    """Min/max нормы показателя для профиля стада (server-only)."""

    __tablename__ = "lab_profile_norm"
    __table_args__ = (
        UniqueConstraint("profile_id", "indicator_key", name="uq_lab_profile_norm"),
    )

    id = Column(String(36), primary_key=True, default=default_uuid)
    profile_id = Column(
        String(36),
        ForeignKey("lab_animal_profile.id"),
        nullable=False,
        index=True,
    )
    indicator_key = Column(String(64), nullable=False)
    min_value = Column(Float, nullable=True)
    max_value = Column(Float, nullable=True)