@type-ddd/cnpj/util.js

Library that provides TypeScript type definitions for handling CNPJ (Cadastro Nacional da Pessoa Jurídica) in Domain-Driven Design contexts. It facilitates the validation and manipulation of CNPJ numbers, ensuring they adhere to the Brazilian legal standa

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isValidCnpjDigit = exports.removeSpecialCharsFromCnpj = exports.formatValueToCnpjPattern = void 0;
const removeSpecialCharsFromCnpjRegex = /[\.]|[-]|[\/]/g;
const formatValueToCnpjPattern = (cnpj) => {
    const cnpjValue = (0, exports.removeSpecialCharsFromCnpj)(cnpj);
    let formattedValue = '';
    let index = 0;
    while (formattedValue.length < 18 && index < 17) {
        if (index === 2 || index === 5) {
            formattedValue += '.';
        }
        else if (index === 8) {
            formattedValue += '/';
        }
        else if (index === 12) {
            formattedValue += '-';
        }
        formattedValue += cnpjValue[index];
        index++;
    }
    return formattedValue;
};
exports.formatValueToCnpjPattern = formatValueToCnpjPattern;
const removeSpecialCharsFromCnpj = (cnpj) => {
    return cnpj.replace(removeSpecialCharsFromCnpjRegex, '');
};
exports.removeSpecialCharsFromCnpj = removeSpecialCharsFromCnpj;
const getCnpjDigitsNumbers = (cnpj) => {
    const lastTwoNumbers = cnpj.slice(cnpj.length - 2);
    const penultimateDigit = parseInt(lastTwoNumbers[0]);
    const ultimateDigit = parseInt(lastTwoNumbers[1]);
    return {
        penultimateDigit,
        ultimateDigit,
    };
};
const transformCnpjInArrNumber = (cnpj) => {
    var arr = [];
    let index = 0;
    while (index < 12) {
        arr.push(parseInt(cnpj[index]));
        index++;
    }
    return arr;
};
const calculateCnpjDigits = (cnpjNumbers) => {
    const factor = 11;
    let index = cnpjNumbers.length - 1;
    let startAuxValue = 2;
    let totalForDigit = 0;
    while (index >= 0) {
        totalForDigit = totalForDigit + cnpjNumbers[index] * startAuxValue;
        startAuxValue = startAuxValue === 9 ? 2 : startAuxValue + 1;
        index--;
    }
    const calcPDigit = totalForDigit % factor;
    const resultPDigit = factor - calcPDigit;
    const zeroIfPGreaterThanNine = resultPDigit >= 9 ? 0 : resultPDigit;
    const penultimateDigit = zeroIfPGreaterThanNine;
    cnpjNumbers.push(penultimateDigit);
    index = cnpjNumbers.length - 1;
    startAuxValue = 2;
    totalForDigit = 0;
    while (index >= 0) {
        totalForDigit = totalForDigit + cnpjNumbers[index] * startAuxValue;
        startAuxValue = startAuxValue === 9 ? 2 : startAuxValue + 1;
        index--;
    }
    const calcUDigit = totalForDigit % factor;
    const resultUDigit = factor - calcUDigit;
    const zeroIfGreaterThanNine = resultUDigit > 9 ? 0 : resultUDigit;
    const ultimateDigit = zeroIfGreaterThanNine;
    return {
        penultimateDigit,
        ultimateDigit,
    };
};
const isValidCnpjDigit = (cnpj) => {
    const onlyNumbers = (0, exports.removeSpecialCharsFromCnpj)(cnpj);
    if (onlyNumbers.length !== 14) {
        return false;
    }
    const digits = getCnpjDigitsNumbers(onlyNumbers);
    const arrNumbers = transformCnpjInArrNumber(onlyNumbers);
    const validDigits = calculateCnpjDigits(arrNumbers);
    return (digits.penultimateDigit === validDigits.penultimateDigit &&
        digits.ultimateDigit === validDigits.ultimateDigit);
};
exports.isValidCnpjDigit = isValidCnpjDigit;
exports.default = exports.isValidCnpjDigit;