@accounter/server

Version:
22 lines • 968 B
JavaScript
export function validateDocumentVat(document, vatValue, onError, requireVat = false) {
    if (!document.total_amount) {
        onError(`Amount missing for invoice ID=${document.id}`);
        return false;
    }
    if (!document.vat_amount) {
        if (requireVat) {
            onError(`VAT amount missing for invoice ID=${document.id}`);
            return false;
        }
        return true;
    }
    const convertedVat = vatValue / (1 + vatValue);
    const tiplessTotalAmount = document.total_amount - (document.no_vat_amount ? Number(document.no_vat_amount) : 0);
    const vatDiff = Math.abs(tiplessTotalAmount * convertedVat - document.vat_amount);
    if (vatDiff > 0.005) {
        onError(`Expected VAT amount is not ${vatValue * 100}%, but got ${document.vat_amount / (tiplessTotalAmount - document.vat_amount)} for invoice ID=${document.id}`);
        return false;
    }
    return true;
}
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