music-codes/dist/ean.js

Small library for music codes (ISRC, ISWC, UPC)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseEAN = parseEAN;
exports.getEanFromPrefix = getEanFromPrefix;
const errors_js_1 = require("./errors.js");
const gtin_js_1 = require("./gtin.js");
const utils_js_1 = require("./utils.js");
/**
 * EAN is an alias for GTIN-13
 * @returns GTIN instance
 */
function parseEAN(ean, prefix) {
    if (!/^[\d]{13}$/.test(ean)) {
        throw new errors_js_1.ParseError(`Invalid EAN: ${ean}`);
    }
    return new gtin_js_1.GTIN(ean, prefix, true);
}
/**
 * EAN is an alias for GTIN-13
 * @returns GTIN instance
 */
function getEanFromPrefix(prefix) {
    if (prefix.length < 1) {
        throw new errors_js_1.ParseError(`Prefix is too short: ${prefix}`);
    }
    if (prefix.length > 12) {
        throw new errors_js_1.ParseError(`Prefix is too long: ${prefix}`);
    }
    const code = prefix.padEnd(12, '0');
    const checkDigit = (0, utils_js_1.getLuhnCheckDigit)(code);
    return new gtin_js_1.GTIN(`${code}${checkDigit}`, prefix, false);
}
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