ibantools-germany/dist/cjs/lib/methods/method33.js

IBAN Validator and Generator for German Bank Accounts

"use strict";
/**
 * ibantools-germany
 * Copyright (c) 2022-2026 Markus Baumer <markus@baumer.dev>
 * SPDX-License-Identifier: MIT OR MPL-2.0
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.method33Core = void 0;
const helper_1 = require("../helper");
const method06_1 = require("./method06");
const method33Core = (number, weights, modulo = 11, remainder0CheckDigit) => {
    const paddedNumber = (0, helper_1.paddedAccountNumber)(number);
    const digits = (0, helper_1.getDigits)(paddedNumber.slice(4, 10));
    const givenCheckDigit = digits.pop(); // Check digit is last digit
    const weightedDigits = (0, helper_1.weightDigitsRTL)(digits, weights);
    const sum = (0, helper_1.calculateSum)(weightedDigits);
    const { difference: calculatedCheckDigit, remainder } = (0, helper_1.moduloDifference)(sum, modulo, modulo);
    // Special sub case used in method51dCore, method85, method87c
    if (remainder0CheckDigit !== undefined && remainder === 0) {
        return givenCheckDigit === remainder0CheckDigit ? "VALID" : "INVALID";
    }
    return (0, method06_1.method06Result)(givenCheckDigit, calculatedCheckDigit);
};
exports.method33Core = method33Core;
exports.default = (number) => (0, exports.method33Core)(number, [2, 3, 4, 5, 6]);