token-guardian/src/utils/Logger.ts

A comprehensive solution for protecting and managing API tokens and secrets

/**
 * Log levels
 */
export type LogLevel = 'debug' | 'info' | 'warn' | 'error';

/**
 * Simple logger utility
 */
export class Logger {
  constructor(private level: LogLevel = 'info') {}

  public debug(message: string, meta?: Record<string, unknown>): void {
    if (this.shouldLog('debug')) {
      console.debug(this.format('DEBUG', message, meta));
    }
  }

  public info(message: string, meta?: Record<string, unknown>): void {
    if (this.shouldLog('info')) {
      console.info(this.format('INFO', message, meta));
    }
  }

  public warn(message: string, meta?: Record<string, unknown>): void {
    if (this.shouldLog('warn')) {
      console.warn(this.format('WARN', message, meta));
    }
  }

  public error(message: string, meta?: Record<string, unknown>): void {
    if (this.shouldLog('error')) {
      console.error(this.format('ERROR', message, meta));
    }
  }

  private shouldLog(level: LogLevel): boolean {
    const levels: LogLevel[] = ['debug', 'info', 'warn', 'error'];
    return levels.indexOf(level) >= levels.indexOf(this.level);
  }

  private format(level: string, message: string, meta?: Record<string, unknown>): string {
    const timestamp = new Date().toISOString();
    const metaStr = meta ? ` ${JSON.stringify(meta)}` : '';
    return `[${timestamp}] ${level}: ${message}${metaStr}`;
  }
}