1use rust_decimal::Decimal;
2
3use crate::{
4 impl_dec_newtype, json,
5 money::Cost,
6 number::{self, FromDecimal as _},
7 Money,
8};
9
10impl_dec_newtype!(Ampere, "A");
11impl_dec_newtype!(Kwh, "Kwh");
12impl_dec_newtype!(Kw, "Kw");
13
14#[derive(Debug, PartialEq, Eq, Clone, Copy, PartialOrd, Ord, Default)]
16#[cfg_attr(test, derive(serde::Deserialize))]
17pub struct Kwh(Decimal);
18
19impl Cost for Kwh {
20 fn cost(&self, money: Money) -> Money {
21 let cost = self.0.saturating_mul(money.into());
22 Money::from_decimal(cost)
23 }
24}
25
26impl Kwh {
27 pub fn watt_hours(self) -> Decimal {
28 self.0.saturating_mul(Decimal::from(1000))
29 }
30
31 #[expect(clippy::missing_panics_doc, reason = "divisor is non-zero")]
32 #[expect(clippy::unwrap_used, reason = "divisor is non-zero")]
33 pub fn from_watt_hours(num: Decimal) -> Self {
34 Self(num.checked_div(Decimal::from(1000)).unwrap())
35 }
36}
37
38#[derive(Debug, PartialEq, Eq, Clone, Copy, PartialOrd, Ord)]
40pub struct Kw(Decimal);
41
42#[derive(Debug, PartialEq, Eq, Clone, Copy, PartialOrd, Ord)]
44pub struct Ampere(Decimal);