requirements-analysis/src/utils/logger.ts

简化的需求分析MCP服务 - 基于AI软件工程（优化版）6步流程

/**
 * 简单的日志工具
 */

import { LogLevel, LogEntry } from '../types';

export class Logger {
  private logs: LogEntry[] = [];

  log(level: LogLevel, message: string, sessionId?: string, stepNumber?: number, data?: any): void {
    const entry: LogEntry = {
      level,
      message,
      timestamp: new Date(),
      sessionId,
      stepNumber,
      data
    };

    this.logs.push(entry);
    
    // 控制台输出
    const timestamp = entry.timestamp.toISOString();
    const prefix = sessionId ? `[${sessionId.slice(0, 8)}]` : '';
    const stepPrefix = stepNumber ? `[Step${stepNumber}]` : '';
    
    console.log(`${timestamp} [${level.toUpperCase()}] ${prefix}${stepPrefix} ${message}`);
    
    if (data) {
      console.log('  Data:', JSON.stringify(data, null, 2));
    }
  }

  debug(message: string, sessionId?: string, stepNumber?: number, data?: any): void {
    this.log('debug', message, sessionId, stepNumber, data);
  }

  info(message: string, sessionId?: string, stepNumber?: number, data?: any): void {
    this.log('info', message, sessionId, stepNumber, data);
  }

  warn(message: string, sessionId?: string, stepNumber?: number, data?: any): void {
    this.log('warn', message, sessionId, stepNumber, data);
  }

  error(message: string, sessionId?: string, stepNumber?: number, data?: any): void {
    this.log('error', message, sessionId, stepNumber, data);
  }

  getLogs(sessionId?: string): LogEntry[] {
    if (sessionId) {
      return this.logs.filter(log => log.sessionId === sessionId);
    }
    return this.logs;
  }

  clearLogs(): void {
    this.logs = [];
  }
}