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feat(ui-common): shared currency formatting + DJF in CurrencySelector

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New lib/currency.ts is the single source of truth for currency
display across both freight web apps: symbol, name and decimals per
code (DJF is zero-decimal by convention, unlike ETB/USD). Portal's own
currency lib and backoffice's ad-hoc formatters are rewired onto this
in the next two commits instead of each guessing decimals.

CurrencySelector gets an allowDjf prop mirroring the existing allowUsd
gate, so import-shipment currency pickers can offer DJF the same way
they offer USD.

Claude-Session: https://claude.ai/code/session_01CZy77vCWhka3pnmVF9NDkL
This commit is contained in:
ghost2023
2026-09-04 11:53:01 +03:00
parent d8a12939ae
commit 5c59855b5b
3 changed files with 74 additions and 2 deletions
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43
packages/ui-common/src/lib/currency.ts Normal file
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/**
* The currency codes the freight apps support, and how each one displays —
* symbol, full name, decimal places. USD/ETB are conventional 2-decimal
* currencies; DJF (Djibouti Franc) is a zero-decimal currency by convention.
*
* Single source of truth for currency display across both freight web apps —
* import this instead of re-declaring a symbol map or a decimals rule.
*/
export const CURRENCY_META = {
ETB: { symbol: "Br", name: "Ethiopian Birr", decimals: 2 },
USD: { symbol: "$", name: "US Dollar", decimals: 2 },
DJF: { symbol: "Fdj", name: "Djibouti Franc", decimals: 0 },
} as const;
export type SupportedCurrency = keyof typeof CURRENCY_META;
export const CURRENCY_CODES = Object.keys(CURRENCY_META) as SupportedCurrency[];
/** Decimal places to render an amount in `code` with. Defaults to 2 for an unknown code. */
export function currencyDecimals(code?: string | null): number {
const meta = code ? CURRENCY_META[code as SupportedCurrency] : undefined;
return meta?.decimals ?? 2;
}
/** Display symbol for `code`. Falls back to printing the raw code. */
export function currencySymbol(code?: string | null): string {
const meta = code ? CURRENCY_META[code as SupportedCurrency] : undefined;
return meta?.symbol ?? code ?? "";
}
/**
* Format a money amount with its currency symbol, e.g. `Br 12,500.00` or
* `Fdj 2,194,318`. Unknown currency codes fall back to printing the raw code
* with 2 decimals.
*/
export function formatCurrency(amount: number, currency?: string | null): string {
const symbol = currencySymbol(currency);
const decimals = currencyDecimals(currency);
return `${symbol} ${Number(amount ?? 0).toLocaleString(undefined, {
minimumFractionDigits: decimals,
maximumFractionDigits: decimals,
})}`;
}