core_invoice/
tax.rs

1/// Tax system on the invoice. PINT is the reason this is not "VAT or nothing".
2#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
3pub enum TaxSystem {
4    Vat,
5    Gst,
6    Sst,
7    Consumption,
8}
9
10impl TaxSystem {
11    pub fn as_str(self) -> &'static str {
12        match self {
13            Self::Vat => "VAT",
14            Self::Gst => "GST",
15            Self::Sst => "SST",
16            Self::Consumption => "CONSUMPTION",
17        }
18    }
19
20    pub fn parse(s: &str) -> Option<Self> {
21        match s.trim().to_ascii_uppercase().as_str() {
22            "VAT" | "VAT/CGST" => Some(Self::Vat),
23            "GST" => Some(Self::Gst),
24            "SST" | "SALES" | "SERVICE" => Some(Self::Sst),
25            "CONSUMPTION" | "CT" => Some(Self::Consumption),
26            _ => None,
27        }
28    }
29}
30
31/// A tax category on a line or breakdown (rate + system).
32#[derive(Debug, Clone, PartialEq, Eq)]
33pub struct TaxCategory {
34    pub system: TaxSystem,
35    pub code: String,
36    pub percent: rust_decimal::Decimal,
37}
38
39impl TaxCategory {
40    pub fn vat(code: impl Into<String>, percent: rust_decimal::Decimal) -> Self {
41        Self {
42            system: TaxSystem::Vat,
43            code: code.into(),
44            percent,
45        }
46    }
47
48    pub fn sst(code: impl Into<String>, percent: rust_decimal::Decimal) -> Self {
49        Self {
50            system: TaxSystem::Sst,
51            code: code.into(),
52            percent,
53        }
54    }
55
56    pub fn gst(code: impl Into<String>, percent: rust_decimal::Decimal) -> Self {
57        Self {
58            system: TaxSystem::Gst,
59            code: code.into(),
60            percent,
61        }
62    }
63}
core_invoice/tax.rs

core_invoice/
tax.rs
