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/**
* Helpers para firmar y verificar tokens JWT.
*
* Responsabilidades:
* - signToken(payload) → firma un token HS256 con expiracion configurable.
* - verifyToken(token) → verifica firma, expiracion y algoritmo (solo HS256).
*
* Consumido por:
* - auth.service.js → al hacer login exitoso.
* - requireAuth.js → en cada peticion protegida.
*
* Configuracion:
* - JWT_SECRET : minimo 32 chars (validado en config.js).
* - JWT_EXPIRES_IN: default '1h'.
*/
import jwt from 'jsonwebtoken';
import { config } from '../config.js';
export const signToken = (payload) =>
jwt.sign(payload, config.JWT_SECRET, {
algorithm: 'HS256',
expiresIn: config.JWT_EXPIRES_IN,
});
export const verifyToken = (token) =>
jwt.verify(token, config.JWT_SECRET, { algorithms: ['HS256'] });