example.ts

/**
 * Example TypeScript file for testing Traycer
 * 
 * This file demonstrates various code patterns that Traycer can analyze
 */

import { readFileSync } from 'fs';
import * as path from 'path';

// Complex function that could be refactored
export function processUserData(userId: string, options: { includeHistory?: boolean; format?: string }): any {
  const user = getUserById(userId);
  if (!user) {
    throw new Error('User not found');
  }
  
  if (options.includeHistory) {
    const history = getUserHistory(userId);
    if (history && history.length > 0) {
      user.history = history;
      if (options.format === 'json') {
        return JSON.stringify(user);
      } else if (options.format === 'xml') {
        return convertToXML(user);
      } else {
        return user;
      }
    } else {
      if (options.format === 'json') {
        return JSON.stringify(user);
      } else if (options.format === 'xml') {
        return convertToXML(user);
      } else {
        return user;
      }
    }
  } else {
    if (options.format === 'json') {
      return JSON.stringify(user);
    } else if (options.format === 'xml') {
      return convertToXML(user);
    } else {
      return user;
    }
  }
}

// Helper functions
function getUserById(id: string): any {
  // Simulated database lookup
  return { id, name: 'John Doe', email: 'john@example.com' };
}

function getUserHistory(userId: string): any[] {
  // Simulated history retrieval
  return [];
}

function convertToXML(data: any): string {
  // Simple XML conversion
  return `<user><id>${data.id}</id><name>${data.name}</name></user>`;
}

// Class example
export class UserService {
  private users: Map<string, any> = new Map();

  constructor() {
    this.initialize();
  }

  private initialize(): void {
    // Load users from file
    try {
      const data = readFileSync(path.join(__dirname, 'users.json'), 'utf-8');
      const users = JSON.parse(data);
      users.forEach((user: any) => {
        this.users.set(user.id, user);
      });
    } catch (error) {
      console.error('Failed to load users:', error);
    }
  }

  public getUser(id: string): any {
    return this.users.get(id);
  }

  public addUser(user: any): void {
    if (!user.id) {
      throw new Error('User must have an id');
    }
    if (this.users.has(user.id)) {
      throw new Error('User already exists');
    }
    this.users.set(user.id, user);
  }
}