fredy/lib/services/logger.js

/*
 * Copyright (c) 2026 by Christian Kellner.
 * Licensed under Apache-2.0 with Commons Clause and Attribution/Naming Clause
 */

const COLORS = {
  debug: '\x1b[36m',
  info: '\x1b[32m',
  warn: '\x1b[33m',
  error: '\x1b[31m',
  reset: '\x1b[0m',
};

const env = process.env.NODE_ENV || 'development';
const useColor = process.stdout.isTTY || process.stderr.isTTY;

function ts() {
  const d = new Date();
  const yyyy = d.getFullYear();
  const mm = String(d.getMonth() + 1).padStart(2, '0');
  const dd = String(d.getDate()).padStart(2, '0');
  const hh = String(d.getHours()).padStart(2, '0');
  const mi = String(d.getMinutes()).padStart(2, '0');
  const ss = String(d.getSeconds()).padStart(2, '0');
  return `${yyyy}-${mm}-${dd} ${hh}:${mi}:${ss}`;
}

function lvl(level) {
  const upper = level.toUpperCase();
  if (!useColor) return upper;
  return `${COLORS[level] || ''}${upper}${COLORS.reset}`;
}

/* eslint-disable no-console */
function log(level, ...args) {
  if (level === 'debug' && env !== 'development') {
    return; // Skip debug logs in non-development environments
  }

  const prefix = `[${ts()}] ${lvl(level)}:`;
  switch (level) {
    case 'debug':
      console.debug(prefix, ...args);
      break;
    case 'info':
      console.info(prefix, ...args);
      break;
    case 'warn':
      console.warn(prefix, ...args);
      break;
    case 'error':
      console.error(prefix, ...args);
      break;
    default:
      console.log(prefix, ...args);
  }
}

export default {
  debug: (...a) => log('debug', ...a),
  info: (...a) => log('info', ...a),
  warn: (...a) => log('warn', ...a),
  error: (...a) => log('error', ...a),
};