from sqlalchemy import Boolean, Column, Float, Integer

from app import db
from .base import TimestampMixin


class HardwareSetting(db.Model, TimestampMixin):
    """Persistent runtime settings for scale calibration and simulation."""

    __tablename__ = "hardware_settings"

    id = Column(Integer, primary_key=True, default=1)
    counts_per_kg = Column(Float, nullable=False, default=1.0)
    tare_raw = Column(Float, nullable=False, default=0.0)
    simulation_mode = Column(Boolean, nullable=False, default=False, server_default="0")
    simulation_weight_kg = Column(Float, nullable=False, default=0.0, server_default="0")