kavehhn
f04c797be6
Express/MongoDB backend with JWT auth, RBAC, S3 uploads, notifications, and scheduled jobs.
29 lines
887 B
JavaScript
29 lines
887 B
JavaScript
// /utils/errorLocalization.js
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const errors = require('./errors.json');
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const config = require('../config/config');
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const resolveLanguage = (req) => {
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if (req && req.query && req.query.lang) {
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const lang = req.query.lang.toLowerCase();
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if (['fa', 'en'].includes(lang)) return lang;
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}
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if (req && req.headers && req.headers['accept-language']) {
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const headerLang = req.headers['accept-language'].toLowerCase();
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if (headerLang.includes('fa')) return 'fa';
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if (headerLang.includes('en')) return 'en';
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}
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return config.DEFAULT_LANG || 'en';
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};
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const getLocalizedErrorMessage = (errorCode, req = null) => {
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const lang = resolveLanguage(req);
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const errorDef = errors[errorCode] || errors.INTERNAL_SERVER_ERROR;
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return errorDef[lang] || errorDef.en || 'An unexpected error occurred.';
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};
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module.exports = {
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resolveLanguage,
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getLocalizedErrorMessage
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};
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