from sqlalchemy import Column, Integer, String, Float, ForeignKey
from sqlalchemy.orm import relationship
from config.database import Base


class Parameter(Base):
    __tablename__ = "parameter"

    id = Column(Integer, primary_key=True, index=True)
    scenario_id = Column(Integer, ForeignKey("scenario.id"), nullable=False)
    name = Column(String, nullable=False)
    value = Column(Float, nullable=False)

    scenario = relationship("Scenario", back_populates="parameters")

    def __repr__(self):
        return f"<Parameter id={self.id} name={self.name} value={self.value}>"