package ws

import (
	"github.com/gorilla/websocket"
	"sync"
	"time"
)

// Session 会话结构
type Session struct {
	ID          string
	UserID      int
	Conn        *websocket.Conn
	LastActive  time.Time
	qaLimiter   *QALimiter
	Latency     *LatencyMeasurer
	CloseChan   chan struct{}
	MessageChan chan []byte
	mu          sync.RWMutex
}

// HeartbeatManager 心跳管理器
type HeartbeatManager struct {
	interval  time.Duration
	sessions  sync.Map
	closeChan chan struct{}
}

// LatencyMeasurer 延迟测量器
type LatencyMeasurer struct {
	measurements []time.Duration
	lastLatency  time.Duration
	mu           sync.Mutex
}

// NewHeartbeatManager 创建心跳管理器
func NewHeartbeatManager(interval time.Duration) *HeartbeatManager {
	return &HeartbeatManager{
		interval:  interval,
		closeChan: make(chan struct{}),
	}
}