feat(settings): invoicing, bills and contact settings (P4b S4.2)

Eleven settings the invoice and bill workflow reads: the number prefix and
first number, default terms, payment methods with their bank details and
QR links, a footer, the unsent and reminder day counts, the bill reminder
and discount-warning day counts, and the company's email and website that
the seller snapshot prints.

Three new kinds keep them exact: a count is a positive whole number, terms
are canonicalized through Terms so "net 30" is stored once as "Net 30"
(B-39), and a payment method list admits at most eight methods whose lines
are at most 120 characters. A routing number is nine digits, so an ach or
wire method's bank-detail lines are the one text exempt from the full-TIN
check (A-3); every other text in a method is scanned.

The keys need the documents_v2 feature (D-52): an older version doesn't
know them, and the settings replay refuses an unknown key as newer. The
constant, the known-features entry and the gate test land with this slice
(its 8.0.6 work); S4.3 adds the document write call sites and must not
redeclare them.

A settings file now exports the [invoicing] and [bills] tables, a payment
method as an inline table (never a [[payment_methods]] section that would
land outside its table), and imports them back to the same values. The
unknown-key test uses fax instead of website, which is now a setting.
This commit is contained in:
swaits committed 2026-10-27 03:44:24 -06:00
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@@ -417,3 +417,184 @@ fn dates_take_one_spelling() {
);
}
}
// ------------------------------------------------ P4b S4.2: the new kinds
/// `Kind::Count`: a positive whole number, in one canonical JSON number
/// (a settings file writes it as digits; the journal keeps the number).
#[test]
fn counts_are_positive_whole_numbers() {
let days = |v: Value| checked("invoicing.unsent_days", v);
assert_eq!(days(json!(2)), Ok(json!(2)));
assert_eq!(days(json!("14")), Ok(json!(14)));
assert_eq!(
checked("invoicing.first_number", json!(1000)),
Ok(json!(1000))
);
for bad in [
json!(0),
json!(-1),
json!("0"),
json!("-2"),
json!(1.5),
json!("2.0"),
json!("x"),
json!(true),
json!(null),
] {
assert!(days(bad.clone()).is_err(), "{bad}");
}
// Every day-count key takes the same kind.
for k in [
"invoicing.first_number",
"invoicing.unsent_days",
"invoicing.reminder_days",
"bills.remind_days",
"bills.discount_warn_days",
] {
assert_eq!(checked(k, json!(7)), Ok(json!(7)), "{k}");
assert!(checked(k, json!(0)).is_err(), "{k}");
}
}
/// `Kind::Terms`: canonicalized through [`ledger_core::Terms`], so two
/// spellings of one agreement are one value (rules.md B-39).
#[test]
fn terms_keep_one_canonical_spelling() {
let terms = |s: &str| checked("invoicing.default_terms", json!(s));
assert_eq!(terms("net 30"), Ok(json!("Net 30")));
assert_eq!(terms(" NET 15 EOM "), Ok(json!("Net 15 EOM")));
assert_eq!(terms("2/10 net 30"), Ok(json!("2/10 net 30")));
assert_eq!(terms("Due On Receipt"), Ok(json!("Due on receipt")));
assert_eq!(terms("due 2026-11-15"), Ok(json!("Due 2026-11-15")));
assert_eq!(terms("2.5/10 net 30"), Ok(json!("2.5/10 net 30")));
for bad in [
"net",
"Net 4000",
"Net -5",
"2/40 net 30",
"0/10 net 30",
"2/10 net 15 eom",
"2/10 net 30 extra",
"Due 9999-13-01",
"Due 2026-1-5",
"",
] {
assert!(terms(bad).is_err(), "{bad:?}");
}
}
/// `Kind::PaymentMethods` (A-3): a routing number is nine digits, so an
/// `ach` or `wire` method's bank-detail lines are the one text exempt from
/// the full-TIN check; every other text in the list is scanned. At most
/// eight methods, each line at most 120 characters.
#[test]
fn payment_methods_scan_every_text_but_ach_and_wire_lines() {
let methods = |v: Value| checked("invoicing.payment_methods", v);
for kind in ["ach", "wire"] {
let got = methods(json!([{
"kind": kind,
"label": "Bank transfer",
"lines": ["Routing 123456789", "Account 000123456789"],
}]))
.unwrap();
assert_eq!(got[0]["lines"][0], json!("Routing 123456789"), "{kind}");
assert_eq!(got[0]["lines"][1], json!("Account 000123456789"), "{kind}");
}
for bad in [
json!([{"kind": "link", "label": "123456789", "lines": []}]),
json!([{"kind": "link", "label": "Pay here", "lines": ["123456789"]}]),
json!([{"kind": "check", "label": "Check", "lines": ["pay to 123456789"]}]),
json!([{"kind": "other", "label": "Cash", "lines": [], "link": "123456789"}]),
] {
assert!(methods(bad.clone()).is_err(), "{bad}");
}
// Canonical: the kind's spelling and the texts are trimmed.
assert_eq!(
methods(json!([{"kind": "ACH", "label": " Bank ", "lines": [" 123456789 "], "qr": true}]))
.unwrap(),
json!([{"kind": "ach", "label": "Bank", "lines": ["123456789"], "qr": true}])
);
// Unknown kind and unknown field are refused.
assert!(methods(json!([{"kind": "barter", "label": "X", "lines": []}])).is_err());
assert!(
methods(json!([{"kind": "other", "label": "X", "lines": [], "note": "y"}])).is_err()
);
// At most eight methods.
let pool = |n: usize| {
Value::Array(
(0..n)
.map(|i| json!({"kind": "other", "label": format!("Method {i}"), "lines": []}))
.collect(),
)
};
assert!(methods(pool(8)).is_ok());
assert!(methods(pool(9)).is_err());
// Each line at most 120 characters.
let long = "x".repeat(121);
assert!(
methods(json!([{"kind": "other", "label": "M", "lines": [long]}])).is_err(),
"121 characters"
);
}
/// `invoicing.number_prefix` is 1 to 12 visible ASCII characters: a number
/// with a space or a control character in it reads wrong, and an empty
/// prefix is no prefix.
#[test]
fn number_prefix_is_short_visible_ascii() {
let prefix = |s: &str| checked("invoicing.number_prefix", json!(s));
for ok in ["INV-", "A", "2026/", "ABCDEFGHIJKL"] {
assert_eq!(prefix(ok), Ok(json!(ok)), "{ok:?}");
}
assert_eq!(prefix(" INV- "), Ok(json!("INV-")));
for bad in ["", " ", "ABCDEFGHIJKLM", "INV 1", "INV\t1", "Ünï"] {
assert!(prefix(bad).is_err(), "{bad:?}");
}
}
/// The company's contact details are simple company keys, so the seller
/// snapshot reads them through `Company::profile`.
#[test]
fn contact_details_are_in_the_company_profile() {
let s = settings(&[
("company.name", json!("Acme LLC")),
("company.email", json!("billing@acme.example")),
("company.website", json!("https://acme.example")),
]);
let profile: Vec<(String, String)> = s.company("USD").profile;
assert!(
profile.contains(&("email".into(), "billing@acme.example".into())),
"{profile:?}"
);
assert!(
profile.contains(&("website".into(), "https://acme.example".into())),
"{profile:?}"
);
}
/// Replay checks the new kinds by shape, never by a later version's
/// bounds: a count is a positive whole number, terms any string, and a
/// method list of objects with their fields (rules.md B-28).
#[test]
fn replay_shapes_the_new_kinds() {
let count = key("invoicing.unsent_days").unwrap();
assert!(shape(count, &json!(2)).is_ok());
assert!(shape(count, &json!("2")).is_ok());
assert!(shape(count, &json!(0)).is_err());
let terms = key("invoicing.default_terms").unwrap();
assert!(shape(terms, &json!("Net 30")).is_ok());
assert!(shape(terms, &json!("a spelling this version doesn't know")).is_ok());
assert!(shape(terms, &json!(30)).is_err());
let methods = key("invoicing.payment_methods").unwrap();
assert!(shape(methods, &json!([])).is_ok());
assert!(
shape(
methods,
&json!([{"kind": "ach", "label": "Bank", "lines": ["123456789"]}])
)
.is_ok()
);
assert!(shape(methods, &json!([{"kind": "ach", "label": "Bank"}])).is_err());
}