use std::fmt::{self, Display, Formatter};

#[derive(Copy, Clone, Debug, Default, Eq, PartialEq)]
pub enum Unit {
    CubicMetre,
    #[default]
    Litre,
    CubicCentimetre,
}

impl Unit {
    pub const ALL: [Self; 3] = [Self::CubicMetre, Self::Litre, Self::CubicCentimetre];
}

impl Display for Unit {
    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
        write!(
            f,
            "{}",
            match self {
                Self::CubicMetre => "m³",
                Self::Litre => "L",
                Self::CubicCentimetre => "cc",
            }
        )
    }
}