improve logging

lib/services/logger.js

@@ -1,15 +1,61 @@
-import winston from 'winston';
+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;
 
-const logger = winston.createLogger({
-  level: env !== 'development' ? 'info' : 'debug',
-  format: winston.format.combine(
-    winston.format.colorize(),
-    winston.format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
-    winston.format.printf(({ timestamp, level, message }) => `[${timestamp}] ${level}: ${message}`),
-  ),
-  transports: [new winston.transports.Console()],
-});
+function ts() {
+  const d = new Date();
+  const yyyy = d.getFullYear();
+  const mm = String(d.getMonth() + 1).padStart(2, '0');
+  const dd = String(d.getDate()).padStart(2, '0');
+  const hh = String(d.getHours()).padStart(2, '0');
+  const mi = String(d.getMinutes()).padStart(2, '0');
+  const ss = String(d.getSeconds()).padStart(2, '0');
+  return `${yyyy}-${mm}-${dd} ${hh}:${mi}:${ss}`;
+}
 
-export default logger;
+function lvl(level) {
+  const upper = level.toUpperCase();
+  if (!useColor) return upper;
+  return `${COLORS[level] || ''}${upper}${COLORS.reset}`;
+}
+
+/* eslint-disable no-console */
+function log(level, ...args) {
+  const prefix = `[${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),
+};
+
+// Beispiel:
+// import logger from './logger.js';
+// const a = 'fick';
+// const b = { tr: 'lolo' };
+// logger.info('hallo', a, b);
+// -> In IntelliJ siehst du das Objekt wie bei console.info, plus Prefix