Upload logger.js

logger.js

@@ -0,0 +1,66 @@
+import chalk from 'chalk';
+import moment from 'moment';
+
+const LogLevel = {
+INFO: 'INFO',
+WARN: 'WARN',
+ERROR: 'ERROR',
+DEBUG: 'DEBUG'
+};
+
+class Logger {
+static formatMessage(level, message) {
+  const timestamp = moment().format('YYYY-MM-DD HH:mm:ss');
+  
+  switch(level) {
+    case LogLevel.INFO:
+      return chalk.blue(`[${timestamp}] [${level}] ${message}`);
+    case LogLevel.WARN:
+      return chalk.yellow(`[${timestamp}] [${level}] ${message}`);
+    case LogLevel.ERROR:
+      return chalk.red(`[${timestamp}] [${level}] ${message}`);
+    case LogLevel.DEBUG:
+      return chalk.gray(`[${timestamp}] [${level}] ${message}`);
+    default:
+      return message;
+  }
+}
+
+static info(message, context) {
+  console.log(this.formatMessage(LogLevel.INFO, context ? `[${context}] ${message}` : message));
+}
+
+static warn(message, context) {
+  console.warn(this.formatMessage(LogLevel.WARN, context ? `[${context}] ${message}` : message));
+}
+
+static error(message, context, error = null) {
+  const errorMessage = error ? ` - ${error.message}` : '';
+  console.error(this.formatMessage(LogLevel.ERROR, `${context ? `[${context}] ` : ''}${message}${errorMessage}`));
+}
+
+static debug(message, context) {
+  if (process.env.NODE_ENV === 'development') {
+    console.debug(this.formatMessage(LogLevel.DEBUG, context ? `[${context}] ${message}` : message));
+  }
+}
+
+static requestLogger(req, res, next) {
+  const startTime = Date.now();
+  
+  res.on('finish', () => {
+    const duration = Date.now() - startTime;
+    const logMessage = `${req.method} ${req.path} - ${res.statusCode} (${duration}ms)`;
+    
+    if (res.statusCode >= 400) {
+      Logger.error(logMessage, undefined, 'HTTP');
+    } else {
+      Logger.info(logMessage, 'HTTP');
+    }
+  });
+
+  next();
+}
+}
+
+export default Logger;