nl-im-websocket-demo/controller/websocket_controller.go

package controller

import (
	"context"
	"encoding/json"
	"fmt"
	"log"
	"net/http"
	"os"
	"strconv"
	"sync"
	"time"

	"github.com/gin-gonic/gin"
	"github.com/go-redis/redis/v8"
	"github.com/gorilla/websocket"
	"gorm.io/gorm"
	"xk-websocket/models"
	"xk-websocket/utils"
)

var upgrader = websocket.Upgrader{
	ReadBufferSize:  1024,
	WriteBufferSize: 1024,
	CheckOrigin: func(r *http.Request) bool {
		return true
	},
}

// WebSocketController WebSocket控制器结构体
type WebSocketController struct {
	Clients    map[string]*websocket.Conn
	ClientsMux sync.RWMutex
	WriteMutex sync.Mutex // 添加写锁
	RedisCli   *redis.Client
	NodeID     string
	Port       string
	RedisCtx   context.Context
	Logger     *log.Logger
	DB         *gorm.DB // 数据库连接
}

func NewWebSocketController(db *gorm.DB) *WebSocketController {
	return &WebSocketController{
		Clients:  make(map[string]*websocket.Conn),
		RedisCtx: context.Background(),
		DB:       db, // 初始化数据库连接
	}
}

// ConfigureSystem 配置系统参数
func (c *WebSocketController) ConfigureSystem() {
	c.NodeID = utils.GetEnv("NODE_ID", "local")

	// 只有当端口未设置时才从环境变量获取
	if c.Port == "" {
		c.Port = utils.GetEnv("PORT", "12080")
		log.Printf("📡📡📡📡📡📡📡📡📡📡📡📡📡📡📡📡 使用环境变量设置端口: %s", c.Port)
	}

	log.SetPrefix(fmt.Sprintf("[Node:%s] ", c.NodeID))
	log.SetFlags(log.LstdFlags | log.Lmicroseconds)
	c.configureLogger()

	// 必须先初始化 Redis 客户端
	c.InitRedisClient()

	// 注册节点到Redis
	go c.registerNode() // 现在 RedisCli 已初始化
}

// 注册节点到Redis
func (c *WebSocketController) registerNode() {
	// 添加空值检查
	if c.RedisCli == nil {
		log.Println("⚠️ Redis客户端未初始化，节点注册已取消")
		return
	}

	for {
		key := fmt.Sprintf("websocket:nodes:%s", c.NodeID)
		value := fmt.Sprintf("%s:%s", utils.GetOutboundIP(), c.Port)

		if err := c.RedisCli.Set(c.RedisCtx, key, value, 30*time.Second).Err(); err != nil {
			log.Printf("⚠️ 节点注册失败: %v", err)
		} else {
			log.Printf("📌📌📌📌📌📌📌📌📌📌📌📌📌📌📌📌 节点已注册: %s = %s", key, value)
		}

		time.Sleep(20 * time.Second)
	}
}

// 配置日志记录器
func (c *WebSocketController) configureLogger() {
	logDir := utils.GetEnv("LOG_DIR", "./logs")
	if err := os.MkdirAll(logDir, 0755); err != nil {
		log.Fatalf("❌❌❌❌❌❌❌❌ 创建日志目录失败: %v", err)
	}

	logFreq := utils.GetEnv("LOG_ROTATE_FREQ", "daily")
	if c.Logger == nil {
		c.Logger = log.New(os.Stdout, "", log.LstdFlags|log.Lmicroseconds)
	}

	c.Logger.SetPrefix(fmt.Sprintf("[Node:%s] ", c.NodeID))
	log.SetOutput(c.getLogWriter(logDir, logFreq))
}

// 获取日志文件写入器
func (c *WebSocketController) getLogWriter(logDir, freq string) *utils.DailyFileWriter {
	return utils.NewDailyFileWriter(logDir, freq, c.Logger, c.NodeID)
}

// InitRedisClient 初始化Redis客户端
func (c *WebSocketController) InitRedisClient() {
	redisAddr := utils.GetEnv("REDIS_ADDR", "localhost:6379")
	redisPassword := utils.GetEnv("REDIS_PASSWORD", "")
	c.RedisCli = redis.NewClient(&redis.Options{
		Addr:     redisAddr,
		Password: redisPassword,
		DB:       0,
	})

	if err := c.checkRedisConnection(); err != nil {
		log.Fatalf("❌❌❌❌❌❌❌❌ Redis连接失败: %v", err)
	}
}

// 检查Redis连接
func (c *WebSocketController) checkRedisConnection() error {
	_, err := c.RedisCli.Ping(c.RedisCtx).Result()
	return err
}

// PrintStartupInfo 打印启动信息
func (c *WebSocketController) PrintStartupInfo() {
	hostname, _ := os.Hostname()
	log.Printf("🚀🚀🚀🚀🚀🚀🚀🚀 WebSocket服务启动: NodeID=%s", c.NodeID)
	log.Printf("🌐🌐🌐🌐🌐🌐🌐🌐 监听端口: %s", c.Port)
	log.Printf("📡📡📡📡📡📡📡📡 Redis地址: %s", utils.GetEnv("REDIS_ADDR", "localhost:6379"))
	log.Printf("💻💻💻💻💻💻💻💻 主机: %s", hostname)
	log.Printf("🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒🕒 启动时间: %s", time.Now().Format("2006-01-02 15:04:05"))
	log.Printf("🔔🔔🔔🔔🔔🔔🔔🔔 支持消息类型: \n  0:文本\n  1:图片\n  2:音频\n  3:视频\n  4:处方\n  5:病例\n  6:视频通话\n  7:语音通话\n  8:文件消息")
	log.Printf("🔑🔑🔑🔑🔑🔑🔑🔑 用户绑定键: \n  %s\n  %s", models.ClientUserKey, models.UserClientKey)
	log.Printf("📬📬📬📬📬📬📬📬 新增接口: POST /send-to-user (直接通过用户ID发送消息)")
	log.Printf("🔗🔗🔗🔗🔗🔗🔗🔗 集群节点注册: %s:%s", utils.GetOutboundIP(), c.Port)
	log.Println("🔗🔗🔗🔗🔗🔗🔗🔗 等待客户端连接...")
}

// HealthHandler 健康检查处理器
func (c *WebSocketController) HealthHandler(ctx *gin.Context) {
	ctx.JSON(http.StatusOK, gin.H{
		"status": "ok",
		"node":   c.NodeID,
		"port":   c.Port,
		"time":   time.Now().Format(time.RFC3339),
	})
}

// HandleWebSocket WebSocket连接处理器
func (c *WebSocketController) HandleWebSocket(ctx *gin.Context) {
	start := time.Now()
	clientIP := ctx.ClientIP()
	log.Printf("👤👤👤👤👤👤👤👤 客户端连接中: IP=%s", clientIP)

	conn, err := upgrader.Upgrade(ctx.Writer, ctx.Request, nil)
	if err != nil {
		log.Printf("⚠️ WebSocket升级失败: %v | ClientIP=%s", err, clientIP)
		ctx.JSON(http.StatusBadRequest, gin.H{"error": "无法升级为WebSocket连接"})
		return
	}
	defer conn.Close()

	clientID := utils.GenerateClientID(c.NodeID)
	log.Printf("✅ 客户端已连接: \n  ClientID=%s \n  IP=%s \n  Duration=%s",
		clientID, clientIP, time.Since(start))

	c.addClient(clientID, conn)
	defer c.removeClient(clientID)

	if err := conn.WriteJSON(gin.H{"clientId": clientID}); err != nil {
		log.Printf("⚠️ 发送客户端ID失败: %v | ClientID=%s", err, clientID)
		return
	}

	conn.SetPongHandler(func(string) error {
		conn.SetReadDeadline(time.Now().Add(60 * time.Second))
		return nil
	})

	for {
		messageType, message, err := conn.ReadMessage()
		if err != nil {
			if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway) {
				log.Printf("❌❌❌❌❌❌❌❌ 连接意外断开: %v | ClientID=%s", err, clientID)
			} else {
				log.Printf("⚠️ 连接正常关闭: ClientID=%s", clientID)
			}
			break
		}

		if messageType == websocket.TextMessage {
			go c.handleClientMessage(clientID, message)
		}
	}
}

// 处理客户端消息
func (c *WebSocketController) handleClientMessage(senderID string, message []byte) {
	log.Printf("📥📥📥📥📥📥📥📥 收到客户端消息: \n  SenderID=%s \n  Size=%d bytes", senderID, len(message))

	var payload models.SendMessagePayload
	if err := json.Unmarshal(message, &payload); err == nil && payload.RequestType != "" {
		log.Printf("📦📦📦📦📦📦📦📦 解析JSON消息成功: Type=%s", payload.RequestType)

		if payload.RequestType == "bind" && payload.SenderUserID != "" {
			log.Printf("🔗🔗🔗🔗🔗🔗🔗🔗 处理绑定请求: \n  ClientID=%s \n  UserID=%s", senderID, payload.SenderUserID)
			if err := c.bindClientToUser(senderID, payload.SenderUserID); err != nil {
				log.Printf("❌❌❌❌❌❌❌❌ 绑定失败: %v", err)
			} else {
				log.Printf("✅ 绑定成功: \n  ClientID=%s \n  UserID=%s", senderID, payload.SenderUserID)
			}
			return
		}

		if payload.RequestType == "send_message" {
			if payload.TargetClientID != "" {
				log.Printf("📨📨📨📨📨📨📨📨 处理客户端发起的发送请求: \n  TargetID=%s \n  MsgType=%d",
					payload.TargetClientID, payload.MessageType)

				clientMsg := models.ClientReceivedMessage{
					SenderID:       senderID,
					ReceiverID:     payload.TargetClientID,
					SenderUserID:   payload.SenderUserID,
					ReceiverUserID: payload.ReceiverUserID,
					MessageType:    payload.MessageType,
					Content:        payload.MessageContent,
					SendTime:       time.Now().Format(time.RFC3339),
				}

				c.sendMessageToClient(payload.TargetClientID, clientMsg)
				return
			}

			if payload.ReceiverUserID != "" {
				log.Printf("📨📨📨📨📨📨📨📨 处理客户端发起的用户发送请求: \n  ReceiverUserID=%s \n  MsgType=%d",
					payload.ReceiverUserID, payload.MessageType)

				clientMsg := models.ClientReceivedMessage{
					SenderID:       senderID,
					ReceiverID:     "",
					SenderUserID:   payload.SenderUserID,
					ReceiverUserID: payload.ReceiverUserID,
					MessageType:    payload.MessageType,
					Content:        payload.MessageContent,
					SendTime:       time.Now().Format(time.RFC3339),
				}

				c.sendMessageToUser(payload.ReceiverUserID, clientMsg)
				return
			}
		}
	}

	var clientMsg models.ClientReceivedMessage
	if err := json.Unmarshal(message, &clientMsg); err == nil && clientMsg.ReceiverID != "" {
		log.Printf("📨📨📨📨📨📨📨📨 处理客户端封装消息: \n  TargetID=%s \n  MsgType=%d",
			clientMsg.ReceiverID, clientMsg.MessageType)

		clientMsg.SenderID = senderID
		c.sendMessageToClient(clientMsg.ReceiverID, clientMsg)
		return
	}

	// 处理通话信令
	var callSignal models.CallSignal
	if err := json.Unmarshal(message, &callSignal); err == nil && callSignal.CallStatus != "" {
		// 获取发送者用户ID
		senderUserID, _ := c.getUserIDByClientID(senderID)

		log.Printf("📞📞 处理通话信令: \n  CallStatus=%s \n  CallID=%s \n  CallType=%d \n  SenderUserID=%s \n  CallerID=%s \n  CalleeID=%s",
			callSignal.CallStatus, callSignal.CallID, callSignal.CallType, senderUserID, callSignal.CallerID, callSignal.CalleeID)

		// 处理不同类型的通话动作
		switch callSignal.CallStatus {
		case "invite":
			c.handleCallInvite(senderID, senderUserID, callSignal)
		case "accepted":
			c.handleCallAccept(senderID, senderUserID, callSignal)
		case "rejected":
			c.handleCallReject(senderID, senderUserID, callSignal)
		case "ended":
			c.handleCallEnd(senderID, senderUserID, callSignal)
		case "offer":
			c.handleCallOffer(senderID, senderUserID, callSignal)
		case "answer":
			c.handleCallAnswer(senderID, senderUserID, callSignal)
		case "candidate":
			c.handleCallCandidate(senderID, senderUserID, callSignal)
		case "hangup":
			c.handleCallHangup(senderID, senderUserID, callSignal)
		case "disconnected":
			c.handleCallDisconnected(senderID, senderUserID, callSignal)
		case "terminated":
			c.handleCallTerminated(senderID, senderUserID, callSignal)
		case "no-answer":
			c.handleCallNoAnswer(senderID, senderUserID, callSignal)
		case "busy":
			c.handleCallBusy(senderID, senderUserID, callSignal)
		case "failed":
			c.handleCallFailed(senderID, senderUserID, callSignal)
		default:
			log.Printf("⚠️ 未知的通话动作: %s", callSignal.CallStatus)
		}
		return
	}

	log.Printf("⚠️ 无法识别的消息格式: \n  Size=%d bytes \n  Message=%s", len(message), string(message))
}

// 处理通话邀请
func (c *WebSocketController) handleCallInvite(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("📞 处理通话邀请: \n  CallID=%s \n  CallType=%d \n  From=%s \n  To=%s",
		signal.CallID, signal.CallType, senderUserID, signal.CalleeID)

	// 创建通话消息
	callMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CalleeID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "invite",
	}

	// 发送邀请给被叫方
	if err := c.sendMessageToUser(signal.CalleeID, callMsg); err != nil {
		log.Printf("❌ 发送通话邀请失败: %v | CalleeID=%s", err, signal.CalleeID)
	}
}

// 处理通话接受
func (c *WebSocketController) handleCallAccept(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("✅ 处理通话接受: \n  CallID=%s \n  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CallerID)

	// 创建通话接受消息
	acceptMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CallerID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "accepted",
	}

	// 发送接受消息给主叫方
	if err := c.sendMessageToUser(signal.CallerID, acceptMsg); err != nil {
		log.Printf("❌ 发送通话接受失败: %v | CallerID=%s", err, signal.CallerID)
	}
}

// 处理通话拒绝
func (c *WebSocketController) handleCallReject(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("❌ 处理通话拒绝: \n  CallID=%s \n  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CallerID)

	// 创建通话拒绝消息
	rejectMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CallerID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "rejected",
	}

	// 发送拒绝消息给主叫方
	if err := c.sendMessageToUser(signal.CallerID, rejectMsg); err != nil {
		log.Printf("❌ 发送通话拒绝失败: %v | CallerID=%s", err, signal.CallerID)
	}
}

// 处理通话结束
func (c *WebSocketController) handleCallEnd(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("📞 处理通话结束: \n  CallID=%s \n  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CalleeID)

	// 创建通话结束消息
	endMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CalleeID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "ended",
	}

	// 发送结束消息给对端
	if err := c.sendMessageToUser(signal.CalleeID, endMsg); err != nil {
		log.Printf("❌ 发送通话结束失败: %v | CalleeID=%s", err, signal.CalleeID)
	}
}

// 处理Offer信令
func (c *WebSocketController) handleCallOffer(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("📞 处理Offer信令: \n  CallID=%s \n  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CalleeID)

	// 创建Offer消息
	offerMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CalleeID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "offer",
	}

	// 发送Offer给对端
	if err := c.sendMessageToUser(signal.CalleeID, offerMsg); err != nil {
		log.Printf("❌ 发送Offer失败: %v | CalleeID=%s", err, signal.CalleeID)
	}
}

// 处理Answer信令
func (c *WebSocketController) handleCallAnswer(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("📞 处理Answer信令: \n  CallID=%s \n  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CallerID)

	// 创建Answer消息
	answerMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CallerID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "answer",
	}

	// 发送Answer给对端
	if err := c.sendMessageToUser(signal.CallerID, answerMsg); err != nil {
		log.Printf("❌ 发送Answer失败: %v | CallerID=%s", err, signal.CallerID)
	}
}

// 处理通话候选
func (c *WebSocketController) handleCallCandidate(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("📶 处理通话候选: \n  CallID=%s  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CalleeID)

	// 创建候选消息
	candidateMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CalleeID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "candidate",
	}

	// 发送候选消息给对端
	if err := c.sendMessageToUser(signal.CalleeID, candidateMsg); err != nil {
		log.Printf("❌ 发送候选失败: %v | CalleeID=%s", err, signal.CalleeID)
	}
}

// 处理通话挂断
func (c *WebSocketController) handleCallHangup(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("📞 处理通话挂断: \n  CallID=%s \n  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CalleeID)

	// 创建挂断消息
	hangupMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CalleeID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "hangup",
	}

	// 发送挂断消息给对端
	if err := c.sendMessageToUser(signal.CalleeID, hangupMsg); err != nil {
		log.Printf("❌ 发送通话挂断失败: %v | CalleeID=%s", err, signal.CalleeID)
	}
}

// 处理通话掉线
func (c *WebSocketController) handleCallDisconnected(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("📞 处理通话掉线: \n  CallID=%s \n  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CalleeID)

	// 创建掉线消息
	disconnectedMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CalleeID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "disconnected",
	}

	// 发送掉线消息给对端
	if err := c.sendMessageToUser(signal.CalleeID, disconnectedMsg); err != nil {
		log.Printf("❌ 发送通话掉线失败: %v | CalleeID=%s", err, signal.CalleeID)
	}
}

// 处理通话终止
func (c *WebSocketController) handleCallTerminated(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("📞 处理通话终止: \n  CallID=%s \n  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CalleeID)

	// 创建终止消息
	terminatedMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CalleeID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "terminated",
	}

	// 发送终止消息给对端
	if err := c.sendMessageToUser(signal.CalleeID, terminatedMsg); err != nil {
		log.Printf("❌ 发送通话终止失败: %v | CalleeID=%s", err, signal.CalleeID)
	}
}

// 处理无人接听
func (c *WebSocketController) handleCallNoAnswer(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("📞 处理无人接听: \n  CallID=%s \n  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CallerID)

	// 创建无人接听消息
	noAnswerMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CallerID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "no-answer",
	}

	// 发送无人接听消息
	if err := c.sendMessageToUser(signal.CallerID, noAnswerMsg); err != nil {
		log.Printf("❌ 发送无人接听失败: %v | CallerID=%s", err, signal.CallerID)
	}
}

// 处理忙线状态
func (c *WebSocketController) handleCallBusy(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("📞 处理忙线状态: \n  CallID=%s \n  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CallerID)

	// 创建忙线消息
	busyMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CallerID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "busy",
	}

	// 发送忙线消息
	if err := c.sendMessageToUser(signal.CallerID, busyMsg); err != nil {
		log.Printf("❌ 发送忙线状态失败: %v | CallerID=%s", err, signal.CallerID)
	}
}

// 处理通话失败
func (c *WebSocketController) handleCallFailed(senderID, senderUserID string, signal models.CallSignal) {
	log.Printf("📞 处理通话失败: \n  CallID=%s \n  From=%s \n  To=%s", signal.CallID, senderUserID, signal.CalleeID)

	// 创建失败消息
	failedMsg := models.ClientReceivedMessage{
		SenderID:       senderID,
		ReceiverID:     "",
		SenderUserID:   senderUserID,
		ReceiverUserID: signal.CalleeID,
		MessageType:    signal.CallType,
		Content:        signal.Data,
		SendTime:       time.Now().Format(time.RFC3339),
		CallID:         signal.CallID,
		CallStatus:     "failed",
	}

	// 发送失败消息
	if err := c.sendMessageToUser(signal.CalleeID, failedMsg); err != nil {
		log.Printf("❌ 发送通话失败消息失败: %v | CalleeID=%s", err, signal.CalleeID)
	}
}

// SendMessageHandler API消息发送处理器
func (c *WebSocketController) SendMessageHandler(ctx *gin.Context) {
	start := time.Now()

	var payload models.SendMessagePayload
	if err := ctx.ShouldBindJSON(&payload); err != nil {
		log.Printf("⚠️ 无效的JSON请求格式: %v", err)
		ctx.JSON(http.StatusBadRequest, gin.H{"error": "无效的JSON格式"})
		return
	}

	if payload.RequestType == "" || (payload.TargetClientID == "" && payload.ReceiverUserID == "") ||
		payload.SenderUserID == "" || payload.ReceiverUserID == "" {
		log.Printf("⚠️ 缺少必要参数: \n  request_type=%s \n  target_client_id=%s \n  receiver_user_id=%s \n  sender_user_id=%s \n  receiver_user_id=%s",
			payload.RequestType, payload.TargetClientID, payload.ReceiverUserID, payload.SenderUserID, payload.ReceiverUserID)
		ctx.JSON(http.StatusBadRequest, gin.H{"error": "缺少必要参数"})
		return
	}

	if payload.RequestType == "send_message" {
		log.Printf("📤📤📤📤📤📤📤📤 处理API发送请求: \n  SenderUser=%s \n  MsgType=%d",
			payload.SenderUserID, payload.MessageType)

		clientMsg := models.ClientReceivedMessage{
			SenderID:       "system",
			ReceiverID:     payload.TargetClientID,
			SenderUserID:   payload.SenderUserID,
			ReceiverUserID: payload.ReceiverUserID,
			MessageType:    payload.MessageType,
			Content:        payload.MessageContent,
			SendTime:       time.Now().Format(time.RFC3339),
		}

		var result string
		var sendErr error

		if payload.TargetClientID != "" {
			log.Printf("🎯🎯🎯🎯🎯🎯🎯🎯 目标类型: ClientID | Target=%s", payload.TargetClientID)
			sendErr = c.sendMessageToClient(payload.TargetClientID, clientMsg)
			result = fmt.Sprintf("消息已发送到ClientID: %s", payload.TargetClientID)
		} else if payload.ReceiverUserID != "" {
			log.Printf("🎯🎯🎯🎯🎯🎯🎯🎯 目标类型: UserID | ReceiverUser=%s", payload.ReceiverUserID)
			sendErr = c.sendMessageToUser(payload.ReceiverUserID, clientMsg)
			result = fmt.Sprintf("消息已发送到UserID: %s", payload.ReceiverUserID)
		} else {
			ctx.JSON(http.StatusBadRequest, gin.H{"error": "必须指定目标客户端ID或用户ID"})
			return
		}

		if sendErr != nil {
			ctx.JSON(http.StatusInternalServerError, gin.H{"error": sendErr.Error()})
			return
		}

		ctx.JSON(http.StatusOK, gin.H{"status": "success", "message": result})
		log.Printf("✅ API请求完成: Duration=%s", time.Since(start))
		return
	}

	ctx.JSON(http.StatusBadRequest, gin.H{"error": "不支持的request_type"})
}

// 用户绑定处理器
func (c *WebSocketController) BindHandler(ctx *gin.Context) {
	start := time.Now()

	var req models.BindRequest
	if err := ctx.ShouldBindJSON(&req); err != nil {
		log.Printf("⚠️ 无效的绑定请求格式: %v", err)
		ctx.JSON(http.StatusBadRequest, gin.H{"error": "无效的JSON格式"})
		return
	}

	if req.UserID == "" || req.ClientID == "" {
		log.Printf("⚠️ 缺少必要参数: \n  user_id=%s \n  client_id=%s", req.UserID, req.ClientID)
		ctx.JSON(http.StatusBadRequest, gin.H{"error": "user_id和client_id不能为空"})
		return
	}

	log.Printf("🔗🔗🔗🔗🔗🔗🔗🔗 处理用户绑定请求: \n  UserID=%s \n  ClientID=%s", req.UserID, req.ClientID)

	if err := c.bindClientToUser(req.ClientID, req.UserID); err != nil {
		log.Printf("❌❌❌❌❌❌❌❌ 绑定失败: %v", err)
		ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	ctx.JSON(http.StatusOK, gin.H{
		"status":  "success",
		"message": fmt.Sprintf("绑定成功: ClientID %s -> UserID %s", req.ClientID, req.UserID),
	})

	log.Printf("✅ 绑定请求完成: \n  UserID=%s \n  ClientID=%s \n  Duration=%s",
		req.UserID, req.ClientID, time.Since(start))
}

// SendToUserHandler 通过用户ID发送消息处理器（支持通话信令）
// SendToUserHandler 通过用户ID发送消息处理器（支持通话信令）
func (c *WebSocketController) SendToUserHandler(ctx *gin.Context) {
	start := time.Now()

	var payload models.SendToUserPayload
	if err := ctx.ShouldBindJSON(&payload); err != nil {
		log.Printf("⚠️ 无效的JSON请求格式: %v", err)
		ctx.JSON(http.StatusBadRequest, gin.H{"error": "无效的JSON格式"})
		return
	}

	if payload.ReceiverUserID == "" || payload.SenderUserID == "" {
		log.Printf("⚠️ 缺少必要参数: \n  receiver_user_id=%s \n  sender_user_id=%s",
			payload.ReceiverUserID, payload.SenderUserID)
		ctx.JSON(http.StatusBadRequest, gin.H{"error": "缺少接收方或发送方用户ID"})
		return
	}

	log.Printf("📤📤📤📤📤📤📤📤 处理API用户发送请求: \n  SenderUser=%s → ReceiverUser=%s \n  MsgType=%d",
		payload.SenderUserID, payload.ReceiverUserID, payload.MessageType)

	// 创建消息记录
	chatMsg := models.XkChatMessage{
		RoomId:         payload.RoomId,
		SenderUserID:   payload.SenderUserID,
		ReceiverUserID: payload.ReceiverUserID,
		MessageType:    payload.MessageType,
		MessageContent: payload.MessageContent,
		CallID:         payload.CallID,
		CallStatus:     payload.CallStatus,
	}

	// 保存到数据库
	if err := c.DB.Create(&chatMsg).Error; err != nil {
		log.Printf("❌ 保存消息到数据库失败: %v", err)
	} else {
		log.Printf("💾 消息保存到数据库成功: ID=%d", chatMsg.ID)
	}

	// 创建基础消息结构
	clientMsg := models.ClientReceivedMessage{
		SenderID:       "system",
		ReceiverID:     "",
		SenderUserID:   payload.SenderUserID,
		ReceiverUserID: payload.ReceiverUserID,
		MessageType:    payload.MessageType,
		Content:        payload.MessageContent,
		SendTime:       time.Now().Format(time.RFC3339),
	}

	// 如果是通话信令消息，添加通话相关字段
	if payload.MessageType == 6 || payload.MessageType == 7 {
		clientMsg.CallStatus = payload.CallStatus
		clientMsg.CallID = payload.CallID

		log.Printf("📞📞 处理通话信令消息: \n  CallStatus=%s \n  CallID=%s",
			payload.CallStatus, payload.CallID)
	}

	// 发送消息给目标用户
	if err := c.sendMessageToUser(payload.ReceiverUserID, clientMsg); err != nil {
		log.Printf("❌ 发送消息失败: %v | ReceiverUserID=%s", err, payload.ReceiverUserID)
		ctx.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	ctx.JSON(http.StatusOK, gin.H{
		"status":  "success",
		"message": fmt.Sprintf("消息已发送到用户: %s", payload.ReceiverUserID),
	})

	log.Printf("✅ API用户发送请求完成: Duration=%s", time.Since(start))
}

// 获取聊天记录（分页）
func (c *WebSocketController) GetMessagesHandler(ctx *gin.Context) {
	// 解析查询参数
	roomId := ctx.Query("room_id")
	senderUserId := ctx.Query("sender_user_id")
	receiverUserId := ctx.Query("receiver_user_id")

	page, _ := strconv.Atoi(ctx.DefaultQuery("page", "1"))
	pageSize, _ := strconv.Atoi(ctx.DefaultQuery("page_size", "15"))

	if page < 1 {
		page = 1
	}
	if pageSize < 1 || pageSize > 100 {
		pageSize = 15
	}

	offset := (page - 1) * pageSize

	// 构建查询
	query := c.DB.Model(&models.XkChatMessage{})
	if roomId != "" {
		query = query.Where("room_id = ?", roomId)
	}
	if senderUserId != "" {
		query = query.Where("sender_user_id = ?", senderUserId)
	}
	if receiverUserId != "" {
		query = query.Where("receiver_user_id = ?", receiverUserId)
	}

	// 获取总数
	var total int64
	query.Count(&total)

	// 获取分页数据
	var messages []models.XkChatMessage
	if err := query.Order("created_at DESC").Offset(offset).Limit(pageSize).Find(&messages).Error; err != nil {
		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "获取消息失败"})
		return
	}

	ctx.JSON(http.StatusOK, gin.H{
		"status":  "success",
		"data":    messages,
		"total":   total,
		"page":    page,
		"hasNext": total > int64(offset+pageSize),
	})
}

// 同步聊天记录（全部）
func (c *WebSocketController) SyncMessagesHandler(ctx *gin.Context) {
	roomId := ctx.Query("room_id")
	senderUserId := ctx.Query("sender_user_id")
	receiverUserId := ctx.Query("receiver_user_id")

	query := c.DB.Model(&models.XkChatMessage{})
	if roomId != "" {
		query = query.Where("room_id = ?", roomId)
	}
	if senderUserId != "" {
		query = query.Where("sender_user_id = ?", senderUserId)
	}
	if receiverUserId != "" {
		query = query.Where("receiver_user_id = ?", receiverUserId)
	}

	var messages []models.XkChatMessage
	if err := query.Order("created_at ASC").Find(&messages).Error; err != nil {
		ctx.JSON(http.StatusInternalServerError, gin.H{"error": "获取消息失败"})
		return
	}

	ctx.JSON(http.StatusOK, gin.H{
		"status": "success",
		"data":   messages,
	})
}

// 添加客户端连接
func (c *WebSocketController) addClient(clientID string, conn *websocket.Conn) {
	c.ClientsMux.Lock()
	defer c.ClientsMux.Unlock()
	c.Clients[clientID] = conn
	log.Printf("📊📊📊📊📊📊📊📊 当前连接数: %d", len(c.Clients))
}

// 移除客户端连接
func (c *WebSocketController) removeClient(clientID string) {
	c.ClientsMux.Lock()
	defer c.ClientsMux.Unlock()

	if _, exists := c.Clients[clientID]; exists {
		delete(c.Clients, clientID)
		log.Printf("🔌🔌🔌🔌🔌🔌🔌🔌 客户端已断开: ClientID=%s | 剩余连接数: %d", clientID, len(c.Clients))

		// 清理用户绑定关系
		c.cleanupUserBinding(clientID)
	}
}

// 清理用户绑定关系
func (c *WebSocketController) cleanupUserBinding(clientID string) {
	// 获取用户ID
	userID, err := c.getUserIDByClientID(clientID)
	if err != nil {
		return
	}

	// 从用户-客户端映射中移除
	userClientsKey := fmt.Sprintf("%s:%s", models.UserClientKey, userID)
	c.RedisCli.SRem(c.RedisCtx, userClientsKey, clientID)

	// 从客户端-用户映射中移除
	clientUserKey := fmt.Sprintf("%s:%s", models.ClientUserKey, clientID)
	c.RedisCli.Del(c.RedisCtx, clientUserKey)

	log.Printf("🧹🧹🧹🧹🧹🧹🧹🧹 清理绑定关系: ClientID=%s | UserID=%s", clientID, userID)
}

// 绑定客户端到用户
func (c *WebSocketController) bindClientToUser(clientID, userID string) error {
	// 设置客户端->用户映射
	clientUserKey := fmt.Sprintf("%s:%s", models.ClientUserKey, clientID)
	if err := c.RedisCli.Set(c.RedisCtx, clientUserKey, userID, 0).Err(); err != nil {
		return fmt.Errorf("设置客户端用户映射失败: %v", err)
	}

	// 添加用户->客户端集合映射
	userClientsKey := fmt.Sprintf("%s:%s", models.UserClientKey, userID)
	if err := c.RedisCli.SAdd(c.RedisCtx, userClientsKey, clientID).Err(); err != nil {
		return fmt.Errorf("添加用户客户端集合失败: %v", err)
	}

	log.Printf("🔗🔗🔗🔗🔗🔗🔗🔗 绑定成功: \n  ClientID=%s \n  UserID=%s", clientID, userID)
	return nil
}

// 根据客户端ID获取用户ID
func (c *WebSocketController) getUserIDByClientID(clientID string) (string, error) {
	clientUserKey := fmt.Sprintf("%s:%s", models.ClientUserKey, clientID)
	userID, err := c.RedisCli.Get(c.RedisCtx, clientUserKey).Result()
	if err != nil {
		return "", fmt.Errorf("获取用户ID失败: %v", err)
	}
	return userID, nil
}

// 根据用户ID获取客户端ID列表
func (c *WebSocketController) getClientIDsByUserID(userID string) ([]string, error) {
	userClientsKey := fmt.Sprintf("%s:%s", models.UserClientKey, userID)
	clientIDs, err := c.RedisCli.SMembers(c.RedisCtx, userClientsKey).Result()
	if err != nil {
		return nil, fmt.Errorf("获取客户端ID列表失败: %v", err)
	}
	return clientIDs, nil
}

// 发送消息给指定客户端
func (c *WebSocketController) sendMessageToClient(clientID string, message models.ClientReceivedMessage) error {
	c.ClientsMux.RLock()
	conn, exists := c.Clients[clientID]
	c.ClientsMux.RUnlock()

	if !exists {
		// 尝试通过Redis转发到其他节点
		return c.forwardMessageToOtherNodes(clientID, message)
	}

	c.WriteMutex.Lock()
	defer c.WriteMutex.Unlock()

	if err := conn.WriteJSON(message); err != nil {
		log.Printf("❌ 发送消息失败: %v | ClientID=%s", err, clientID)
		c.removeClient(clientID)
		return err
	}

	log.Printf("✅ 消息已发送: \n  ClientID=%s \n  MsgType=%d \n  Content=%s",
		clientID, message.MessageType, message.Content)
	return nil
}

// 发送消息给指定用户
func (c *WebSocketController) sendMessageToUser(userID string, message models.ClientReceivedMessage) error {
	clientIDs, err := c.getClientIDsByUserID(userID)
	if err != nil {
		log.Printf("⚠️ 获取用户客户端列表失败: %v | UserID=%s", err, userID)
		return err
	}

	if len(clientIDs) == 0 {
		log.Printf("⚠️ 用户无在线客户端: UserID=%s", userID)
		return fmt.Errorf("用户 %s 无在线客户端", userID)
	}

	log.Printf("📤📤📤📤📤📤📤📤 发送消息给用户: \n  UserID=%s \n  ClientCount=%d \n  MsgType=%d",
		userID, len(clientIDs), message.MessageType)

	var lastErr error
	successCount := 0

	for _, clientID := range clientIDs {
		if err := c.sendMessageToClient(clientID, message); err != nil {
			log.Printf("⚠️ 发送到客户端失败: %v | ClientID=%s", err, clientID)
			lastErr = err
		} else {
			successCount++
		}
	}

	if successCount == 0 {
		return fmt.Errorf("所有客户端发送失败，最后错误: %v", lastErr)
	}

	log.Printf("✅ 用户消息发送完成: \n  UserID=%s \n  成功=%d/%d", userID, successCount, len(clientIDs))
	return nil
}

// 转发消息到其他节点
func (c *WebSocketController) forwardMessageToOtherNodes(clientID string, message models.ClientReceivedMessage) error {
	redisMsg := models.RedisMessage{
		SenderNodeID: c.NodeID,
		ClientID:     clientID,
		Message:      "",
	}

	msgBytes, err := json.Marshal(message)
	if err != nil {
		return fmt.Errorf("序列化消息失败: %v", err)
	}
	redisMsg.Message = string(msgBytes)

	redisMsgBytes, err := json.Marshal(redisMsg)
	if err != nil {
		return fmt.Errorf("序列化Redis消息失败: %v", err)
	}

	channel := fmt.Sprintf("websocket:forward:%s", clientID)
	if err := c.RedisCli.Publish(c.RedisCtx, channel, redisMsgBytes).Err(); err != nil {
		return fmt.Errorf("发布Redis消息失败: %v", err)
	}

	log.Printf("📡📡📡📡📡📡📡📡 消息已转发到其他节点: \n  ClientID=%s \n  Channel=%s", clientID, channel)
	return nil
}

// 启动Redis消息监听
func (c *WebSocketController) SubscribeToRedis() {
	go func() {
		pattern := "websocket:forward:*"
		pubsub := c.RedisCli.PSubscribe(c.RedisCtx, pattern)
		defer pubsub.Close()

		log.Printf("📡📡📡📡📡📡📡📡 Redis消息监听已启动: Pattern=%s", pattern)

		for msg := range pubsub.Channel() {
			var redisMsg models.RedisMessage
			if err := json.Unmarshal([]byte(msg.Payload), &redisMsg); err != nil {
				log.Printf("⚠️ 解析Redis消息失败: %v", err)
				continue
			}

			// 忽略自己发送的消息
			if redisMsg.SenderNodeID == c.NodeID {
				continue
			}

			// 检查目标客户端是否在本节点
			c.ClientsMux.RLock()
			conn, exists := c.Clients[redisMsg.ClientID]
			c.ClientsMux.RUnlock()

			if !exists {
				continue
			}

			var clientMsg models.ClientReceivedMessage
			if err := json.Unmarshal([]byte(redisMsg.Message), &clientMsg); err != nil {
				log.Printf("⚠️ 解析客户端消息失败: %v", err)
				continue
			}

			c.WriteMutex.Lock()
			if err := conn.WriteJSON(clientMsg); err != nil {
				log.Printf("❌ 转发消息失败: %v | ClientID=%s", err, redisMsg.ClientID)
				c.removeClient(redisMsg.ClientID)
			} else {
				log.Printf("✅ 转发消息成功: \n  ClientID=%s \n  FromNode=%s",
					redisMsg.ClientID, redisMsg.SenderNodeID)
			}
			c.WriteMutex.Unlock()
		}
	}()
}