/**
 * ============================================
 * 🔧 utils.js — Utilidades compartidas
 * ============================================
 */

import fs from 'fs';
import path from 'path';
import { fileURLToPath } from 'url';

const __dirname = path.dirname(fileURLToPath(import.meta.url));

export function readConfig() {
  const raw = fs.readFileSync(path.join(__dirname, '../config.json'), 'utf-8');
  return JSON.parse(raw);
}

export function sleep(ms) {
  return new Promise(r => setTimeout(r, ms));
}

export function formatDuration(ms) {
  const s = Math.floor(ms / 1000);
  const m = Math.floor(s / 60);
  const h = Math.floor(m / 60);
  if (h > 0) return `${h}h ${m % 60}m ${s % 60}s`;
  if (m > 0) return `${m}m ${s % 60}s`;
  return `${s}s`;
}

export function truncate(str, max = 200) {
  if (!str) return '';
  return str.length > max ? str.substring(0, max) + '...' : str;
}

export function generateId() {
  return `${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
}

// Formatear timestamp legible
export function formatDate(isoString) {
  if (!isoString) return 'desconocido';
  return new Date(isoString).toLocaleDateString('es-ES', {
    day: '2-digit', month: '2-digit', year: 'numeric',
    hour: '2-digit', minute: '2-digit',
  });
}