const SYMBOL_TO_CODE: Record<string, string> = {
$: "USD",
"€": "EUR",
"£": "GBP",
"¥": "JPY",
"₹": "INR",
"₪": "ILS",
};
const TRAILING_SYMBOL_REGEX = new RegExp(
`^(\\d+(?:\\.\\d+)?)[${Object.keys(SYMBOL_TO_CODE).join("")}]$`
);
export function getMonetaryValidationError(value: string): string | null {
const trailingMatch = TRAILING_SYMBOL_REGEX.exec(value);
if (trailingMatch) {
const amount = trailingMatch[1];
const symbol = value.slice(-1);
const code = SYMBOL_TO_CODE[symbol] || "USD";
const numericAmount = parseFloat(amount);
const formattedAmount = isNaN(numericAmount) ? amount : numericAmount.toFixed(2);
return (
`Invalid monetary format "${value}". ` +
`Paperless-NGX requires the currency code as a prefix, e.g. "${code}${formattedAmount}". ` +
`Use the format: {CURRENCY_CODE}{amount} (e.g., USD10.00, GBP123.45, EUR9.99).`
);
}
return null;
}
export function validateCustomFields(
custom_fields: { field: number; value: unknown }[] | undefined
) {
custom_fields
?.filter((cf) => typeof cf.value === "string")
.forEach((cf) => {
const monetaryError = getMonetaryValidationError(cf.value as string);
if (monetaryError) throw new Error(monetaryError);
});
}
