use std::fmt::{Display, Formatter, Result};
use std::ops::{Add, Sub, AddAssign, SubAssign, Div, Mul, DivAssign, MulAssign};

use crate::metric::Unit;
use crate::metric::Primitive;

use crate::declare_unit_basics;

#[derive(Copy, Clone, Debug, PartialOrd, PartialEq)]
pub enum Area {
    Base(f64, fn(f64) -> f64, &'static str),
    Canonical(f64),
    SquareMeter(f64),
    SquareMetre(f64),
}

impl Unit<Area> for Area {
    fn to_si_unit(&self) -> Area {
        match self {
            Area::Base(_, _, _) => self.clone(),
            Area::Canonical(value) => Area::Base(value.clone(), |x| x, "m²"),
            Area::SquareMeter(value) => Area::Base(value.clone(), |x| x, "m²"),
            Area::SquareMetre(value) => Area::Base(value.clone(), |x| x, "m²"),
        }
    }
}

declare_unit_basics!(Area);