// 应用统一配置文件
const config = {
  // API配置
  api: {
    baseURL: process.env.REACT_APP_API_BASE_URL || 'http://localhost:5000',
    timeout: 10000,
    retryCount: 3
  },
  
  // 应用信息
  app: {
    name: process.env.REACT_APP_APP_NAME || 'FileSend',
    version: process.env.REACT_APP_VERSION || '1.0.0',
    description: '文件分享与传输系统'
  },
  
  // 上传配置
  upload: {
    maxFileSize: 100 * 1024 * 1024, // 100MB
    allowedTypes: [
      'image/*',
      'application/pdf',
      'text/*',
      'application/zip',
      'application/x-zip-compressed'
    ],
    chunkSize: 5 * 1024 * 1024 // 5MB分片
  },
  
  // 本地存储配置
  storage: {
    path: process.env.STORAGE_PATH || './uploads',
    maxAge: 7 * 24 * 3600 * 1000, // 7天
    cleanupInterval: 24 * 3600 * 1000 // 每天清理
  },
  
  // 数据库配置
  database: {
    url: process.env.DATABASE_URL || 'sqlite:///filesend.db',
    echo: process.env.NODE_ENV !== 'production'
  },
  
  // 安全配置
  security: {
    jwtSecret: process.env.JWT_SECRET || 'your-secret-key-change-this',
    jwtExpire: '7d',
    bcryptRounds: 12,
    corsOrigins: process.env.CORS_ORIGINS ? process.env.CORS_ORIGINS.split(',') : ['http://localhost:3000']
  },
  
  // 邮件配置（可选）
  email: {
    enabled: process.env.EMAIL_ENABLED === 'true',
    host: process.env.EMAIL_HOST,
    port: parseInt(process.env.EMAIL_PORT) || 587,
    secure: process.env.EMAIL_SECURE === 'true',
    user: process.env.EMAIL_USER,
    pass: process.env.EMAIL_PASS,
    from: process.env.EMAIL_FROM
  }
};

// 环境判断
config.isDevelopment = process.env.NODE_ENV !== 'production';
config.isProduction = process.env.NODE_ENV === 'production';

module.exports = config;