use crate::transducer::InvalidValue;
use uom::si::electric_potential::volt;
use uom::si::quantities::{ElectricPotential, ThermodynamicTemperature};
use uom::si::thermodynamic_temperature::degree_celsius;

#[inline]
pub fn convert(
    voltage: ElectricPotential<f32>,
) -> Result<ThermodynamicTemperature<f32>, InvalidValue> {
    const MIN_VOLTS: f32 = -0.55;
    const MAX_VOLTS: f32 = 1.50;
    const SCALE_FACTOR: f32 = 100.0;

    let volts = voltage.get::<volt>();

    if volts >= MIN_VOLTS && volts <= MAX_VOLTS {
        let celsius = volts * SCALE_FACTOR;
        Ok(ThermodynamicTemperature::new::<degree_celsius>(celsius))
    } else {
        Err(InvalidValue)
    }
}