rutility/dist/validations.js

A JavaScript library for validating and formatting Chilean RUTs (Rol Único Tributario). It provides functions to add/remove dots and dashes, validate formats, and calculate check digits

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isFormat = exports.isValidRut = exports.calculateDv = void 0;
var utils_1 = require("./Utils/utils");
/**
 * Calculates the verification digit of a Chilean RUT (Rol Único Tributario).
 * @param {string | number} rut - The RUT in one of the following formats:
 *   - '12.345.678'
 *   - '12345678'
 *   - 12345678 (as a number)
 * @returns {string} The calculated verification digit or '0' if it's 11, 'K' if it's 10.
 * @throws {Error} If the RUT format is invalid. Acceptable formats are '26270086' or '26.270.086'.
 * @example
 * calculateDv('12.345.678'); // returns '5'
 * calculateDv('12345678'); // returns '5'
 * calculateDv(12345678); // returns '5'
 */
var calculateDv = function (rut) {
    var _a;
    if (typeof rut === 'number') {
        rut = rut.toString();
    }
    if (!(0, utils_1.isValidFormatWithOutDash)(rut)) {
        throw new Error("Invalid RUT format. Acceptable formats are '12.345.678' or '12345678'.");
    }
    var rutBase = rut.replace(/\./g, '');
    var series = [2, 3, 4, 5, 6, 7];
    var sum = rutBase
        .split('')
        .reverse()
        .reduce(function (acc, digit, idx) { return acc + parseInt(digit) * series[idx % series.length]; }, 0);
    var dvCalc = 11 - (sum % 11);
    var finalDv = { 11: '0', 10: 'K' };
    return (_a = finalDv[dvCalc]) !== null && _a !== void 0 ? _a : dvCalc.toString();
};
exports.calculateDv = calculateDv;
/**
 * Validates if a Chilean RUT (Rol Único Tributario) is valid.
 * @param {string} rut - The RUT in one of the following formats:
 *   - '12.345.678-9'
 *   - '12345678-9'
 * @returns {boolean} true if the RUT is valid, false otherwise.
 * @throws {Error} If the RUT format is invalid.
 */
var isValidRut = function (rut) {
    (0, utils_1.formatValidations)(rut);
    var digitsAndVerification = rut.replace(/[.-]/g, '');
    var digits = digitsAndVerification.slice(0, -1);
    var verificationDigit = digitsAndVerification.slice(-1);
    var calculatedVerificationDigit = (0, exports.calculateDv)(digits);
    return (verificationDigit.toLowerCase() ===
        calculatedVerificationDigit.toLowerCase());
};
exports.isValidRut = isValidRut;
exports.isFormat = {
    /**
     * Checks if a Chilean RUT has the correct format with dots and optional dash.
     * @param {string} rut - The RUT to be checked. Example: "12.345.678-9".
     * @returns {boolean} true if the RUT has the correct format, false otherwise. Example: true.
     */
    dot: function (rut) {
        return /^(?!0)(\d{1,3}(?:\.\d{3})*)$/.test(rut);
    },
    /**
     * Checks if a Chilean RUT has the correct format with dash at the end.
     * @param {string} rut - The RUT to be checked. Example: "12.345.678-9".
     * @returns {boolean} true if the RUT has the correct format, false otherwise. Example: true.
     */
    dash: function (rut) {
        return /^(?!0)\d{1,9}-(\d|k|K)$/i.test(rut);
    },
    /**
     * Checks if a Chilean RUT has the correct format with dots and dash, regardless of their order.
     * @param {string} rut - The RUT to be checked. Example: "12.345.678-9".
     * @returns {boolean} true if the RUT has the correct format, false otherwise. Example: true.
     */
    dotDash: function (rut) {
        return /^(?!0)(\d{1,3}(?:\.\d{3})*)-(\d|k|K)$/i.test(rut);
    }
};
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