Paradise/tgui/packages/tgui-dev-server/logging.js

/**
 * @file
 * @copyright 2020 Aleksej Komarov
 * @license MIT
 */

const inception = Date.now();

// Runtime detection
const isNode = process?.release?.name === 'node';
let isChrome = false;
try {
  isChrome = window.navigator.userAgent.toLowerCase().includes('chrome');
} catch {}

// Timestamping function
function getTimestamp() {
  const timestamp = String(Date.now() - inception)
    .padStart(4, '0')
    .padStart(7, ' ');
  const seconds = timestamp.substr(0, timestamp.length - 3);
  const millis = timestamp.substr(-3);

  return `${seconds}.${millis}`;
}

const getPrefix = (() => {
  if (isNode) {
    // Escape sequences
    const ESC = {
      dimmed: '\x1b[38;5;240m',
      bright: '\x1b[37;1m',
      reset: '\x1b[0m',
    };
    return (ns) => [`${ESC.dimmed}${getTimestamp()} ${ESC.bright}${ns}${ESC.reset}`];
  }
  if (isChrome) {
    // Styles
    const styles = {
      dimmed: 'color: #888',
      bright: 'font-weight: bold',
    };
    return (ns) => [`%c${getTimestamp()}%c ${ns}`, styles.dimmed, styles.bright];
  }

  return (ns) => [`${getTimestamp()} ${ns}`];
})();

/**
 * Creates a logger object.
 */
export function createLogger(ns) {
  return {
    log: (...args) => console.log(...getPrefix(ns), ...args),
    trace: (...args) => console.trace(...getPrefix(ns), ...args),
    debug: (...args) => console.debug(...getPrefix(ns), ...args),
    info: (...args) => console.info(...getPrefix(ns), ...args),
    warn: (...args) => console.warn(...getPrefix(ns), ...args),
    error: (...args) => console.error(...getPrefix(ns), ...args),
  };
}

/**
 * Explicitly log with chosen namespace.
 */
export function directLog(ns, ...args) {
  console.log(...getPrefix(ns), ...args);
}