All files / utils logger.js

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/**
 * Centralized Logging System
 * Replaces all console.log statements with structured logging
 */
 
const chalk = require('chalk');
const fs = require('fs-extra');
const path = require('path');
const os = require('os');
 
class Logger {
  constructor() {
    this.logLevel = process.env.VAULTACE_LOG_LEVEL || 'info';
    this.logFile = path.join(os.homedir(), '.vaultace', 'cli.log');
    this.levels = {
      debug: 0,
      info: 1,
      warn: 2,
      error: 3
    };
 
    // Ensure log directory exists
    fs.ensureDirSync(path.dirname(this.logFile));
  }
 
  shouldLog(level) {
    return this.levels[level] >= this.levels[this.logLevel];
  }
 
  formatMessage(level, message, context = {}) {
    const timestamp = new Date().toISOString();
    const formatted = {
      timestamp,
      level: level.toUpperCase(),
      message,
      context,
      pid: process.pid
    };
    return formatted;
  }
 
  writeToFile(formatted) {
    try {
      const logLine = JSON.stringify(formatted) + '\n';
      fs.appendFileSync(this.logFile, logLine);
    } catch (error) {
      // Fail silently for file logging to avoid infinite loops
    }
  }
 
  debug(message, context = {}) {
    if (!this.shouldLog('debug')) return;
 
    const formatted = this.formatMessage('debug', message, context);
    this.writeToFile(formatted);
 
    if (process.env.VAULTACE_VERBOSE) {
      console.log(chalk.gray(`[DEBUG] ${message}`));
      if (Object.keys(context).length > 0) {
        console.log(chalk.gray(JSON.stringify(context, null, 2)));
      }
    }
  }
 
  info(message, context = {}) {
    if (!this.shouldLog('info')) return;
 
    const formatted = this.formatMessage('info', message, context);
    this.writeToFile(formatted);
 
    console.log(chalk.blue(`[INFO] ${message}`));
    if (Object.keys(context).length > 0 && process.env.VAULTACE_VERBOSE) {
      console.log(chalk.gray(JSON.stringify(context, null, 2)));
    }
  }
 
  warn(message, context = {}) {
    if (!this.shouldLog('warn')) return;
 
    const formatted = this.formatMessage('warn', message, context);
    this.writeToFile(formatted);
 
    console.warn(chalk.yellow(`[WARN] ${message}`));
    if (Object.keys(context).length > 0) {
      console.warn(chalk.gray(JSON.stringify(context, null, 2)));
    }
  }
 
  error(message, context = {}) {
    if (!this.shouldLog('error')) return;
 
    const formatted = this.formatMessage('error', message, context);
    this.writeToFile(formatted);
 
    console.error(chalk.red(`[ERROR] ${message}`));
    if (Object.keys(context).length > 0) {
      console.error(chalk.gray(JSON.stringify(context, null, 2)));
    }
  }
 
  // Security audit logging
  security(event, details = {}) {
    const securityLog = this.formatMessage('security', event, {
      ...details,
      security_event: true,
      user: process.env.USER || 'unknown'
    });
 
    this.writeToFile(securityLog);
 
    if (process.env.VAULTACE_VERBOSE) {
      console.log(chalk.magenta(`[SECURITY] ${event}`));
    }
  }
 
  // Performance monitoring
  perf(operation, duration, details = {}) {
    this.debug(`Performance: ${operation} took ${duration}ms`, {
      operation,
      duration,
      ...details
    });
  }
 
  // API request logging
  apiRequest(method, url, status, duration) {
    this.debug(`API ${method} ${url} -> ${status} (${duration}ms)`, {
      type: 'api_request',
      method,
      url,
      status,
      duration
    });
  }
 
  // Command execution logging
  command(cmd, args, success) {
    this.info(`Command executed: ${cmd}`, {
      type: 'command_execution',
      command: cmd,
      arguments: args,
      success
    });
  }
}
 
// Create singleton instance
const logger = new Logger();
 
module.exports = logger;