harper_core/
currency.rs

1use is_macro::Is;
2use serde::{Deserialize, Serialize};
3
4use crate::Number;
5
6#[derive(Debug, Is, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Hash)]
7pub enum Currency {
8    // $
9    Dollar,
10    // ¢
11    Cent,
12    // €
13    Euro,
14    // ₽
15    Ruble,
16    // ₺
17    Lira,
18    // £
19    Pound,
20    // ¥
21    Yen,
22    // ฿
23    Baht,
24    // ₩
25    Won,
26    // ₭,
27    Kip,
28}
29
30impl Currency {
31    pub fn from_char(c: char) -> Option<Self> {
32        let cur = match c {
33            '$' => Self::Dollar,
34            '¢' => Self::Cent,
35            '€' => Self::Euro,
36            '₽' => Self::Ruble,
37            '₺' => Self::Lira,
38            '£' => Self::Pound,
39            '¥' => Self::Yen,
40            '฿' => Self::Baht,
41            '₩' => Self::Won,
42            '₭' => Self::Kip,
43            _ => return None,
44        };
45
46        Some(cur)
47    }
48
49    pub fn to_char(&self) -> char {
50        match self {
51            Self::Dollar => '$',
52            Self::Cent => '¢',
53            Self::Euro => '€',
54            Self::Ruble => '₽',
55            Self::Lira => '₺',
56            Self::Pound => '£',
57            Self::Yen => '¥',
58            Self::Baht => '฿',
59            Self::Won => '₩',
60            Self::Kip => '₭',
61        }
62    }
63
64    /// Format an amount of the specific currency.
65    pub fn format_amount(&self, amount: &Number) -> String {
66        let c = self.to_char();
67
68        let amount = amount.to_string();
69
70        match self {
71            Currency::Dollar => format!("{}{amount}", c),
72            Currency::Cent => format!("{amount}{}", c),
73            Currency::Euro => format!("{}{amount}", c),
74            Currency::Ruble => format!("{amount} {}", c),
75            Currency::Lira => format!("{amount} {}", c),
76            Currency::Pound => format!("{}{amount}", c),
77            Currency::Yen => format!("{} {amount}", c),
78            Currency::Baht => format!("{amount} {}", c),
79            Currency::Won => format!("{} {amount}", c),
80            Currency::Kip => format!("{}{amount}", c),
81        }
82    }
83}
harper_core/currency.rs

harper_core/
currency.rs
