middleware

type AuthMiddleware interface {
	Middleware(next http.Handler) http.Handler
}

type BackendAdapter interface {
	CheckLimit(key string, limit int, window int64) (bool, error)
	Increment(key string, window int64) error
	GetUsage(key string) (int, error)
	Reset(key string) error
}

type CORSConfig struct {
	Enabled          bool
	AllowedOrigins   []string
	AllowedMethods   []string
	AllowedHeaders   []string
	AllowCredentials bool
	MaxAge           int
}

type Field struct {
	Key   string
	Value interface{}
}

type Gateway struct {
	// contains filtered or unexported fields
}

type GatewayBuilder struct {
	// contains filtered or unexported fields
}

type GatewayConfig struct {
	RateLimit  RateLimitConfig
	EnableAuth bool
	LogLevel   string
	Metrics    bool
	Tracing    bool
}

type GatewayMiddleware struct {
	// contains filtered or unexported fields
}

type LoggerAdapter interface {
	Info(msg string, fields ...Field)
	Error(msg string, err error, fields ...Field)
}

type MetricsAdapter interface {
	RecordRequest(method, path string, status int, duration float64)
	RecordError(method, path string, err error)
}

type MiddlewareChain struct {
	// contains filtered or unexported fields
}

type RateLimitConfig struct {
	DefaultRate  int                 // 默认每分钟请求数
	DefaultDaily int                 // 默认每日请求数
	Strategies   map[string]Strategy // 按路径配置
	Burst        int                 // 突发流量支持
}

type RateLimitHandler struct {
	// contains filtered or unexported fields
}

type RateLimitMiddleware struct {
	// contains filtered or unexported fields
}

type RateLimiter struct {
	// contains filtered or unexported fields
}

type RedisBackend struct {
	// contains filtered or unexported fields
}

type SecurityConfig struct {
	CORS        CORSConfig
	Helmet      bool
	IPWhitelist []string
	IPBlacklist []string
	RequestSize int64
}

type SecurityMiddleware struct {
	// contains filtered or unexported fields
}

type SimpleLogger struct{}

type SlidingWindowLimiter struct {
	// contains filtered or unexported fields
}

type Span interface {
	SetAttribute(key string, value interface{})
	End()
}

type Strategy struct {
	Rate  int
	Daily int
	Burst int
}

type TokenBucketLimiter struct {
	// contains filtered or unexported fields
}

type TracerAdapter interface {
	StartSpan(name string, attrs map[string]interface{}) Span
	EndSpan(span Span, err error)
}