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@@ -1,180 +0,0 @@
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// Package api 提供统一的API接口层
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// 负责处理所有外部请求，包括HTTP和WebSocket接口
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// 将请求路由到相应的服务层进行处理
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package api
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import (
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"net/http"
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"sync"
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"time"
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"git.huangwc.com/pig/pig-farm-controller/internal/logs"
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"git.huangwc.com/pig/pig-farm-controller/internal/service"
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"github.com/gin-gonic/gin"
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"github.com/gorilla/websocket"
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)
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// WebSocket消息类型常量
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const (
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// MessageTypeCommand 平台向设备发送的指令
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MessageTypeCommand = "command"
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// MessageTypeResponse 设备向平台发送的响应
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MessageTypeResponse = "response"
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// MessageTypeHeartbeat 心跳消息
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MessageTypeHeartbeat = "heartbeat"
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)
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// WebSocketMessage WebSocket消息结构
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type WebSocketMessage struct {
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// Type 消息类型
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Type string `json:"type"`
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// DeviceID 设备ID
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DeviceID string `json:"device_id,omitempty"`
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// Command 指令内容
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Command string `json:"command,omitempty"`
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// Data 消息数据
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Data interface{} `json:"data,omitempty"`
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// Timestamp 时间戳
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Timestamp time.Time `json:"timestamp"`
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}
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// WebSocketManager WebSocket管理器
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type WebSocketManager struct {
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// websocketService WebSocket服务
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websocketService *service.WebSocketService
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// logger 日志记录器
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logger *logs.Logger
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// upgrader WebSocket升级器
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upgrader websocket.Upgrader
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// mutex 互斥锁
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mutex sync.RWMutex
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// connections 设备连接映射
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connections map[string]*websocket.Conn
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}
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// NewWebSocketManager 创建WebSocket管理器实例
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func NewWebSocketManager(websocketService *service.WebSocketService) *WebSocketManager {
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return &WebSocketManager{
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websocketService: websocketService,
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logger: logs.NewLogger(),
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upgrader: websocket.Upgrader{
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CheckOrigin: func(r *http.Request) bool {
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// 允许所有跨域请求
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return true
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},
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},
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connections: make(map[string]*websocket.Conn),
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}
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}
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// HandleConnection 处理WebSocket连接
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func (wm *WebSocketManager) HandleConnection(c *gin.Context) {
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// 升级HTTP连接到WebSocket
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conn, err := wm.upgrader.Upgrade(c.Writer, c.Request, nil)
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if err != nil {
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wm.logger.Error("WebSocket连接升级失败: " + err.Error())
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return
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}
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// 获取设备ID
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deviceID := c.Query("device_id")
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if deviceID == "" {
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wm.logger.Error("缺少设备ID参数")
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conn.WriteMessage(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.ClosePolicyViolation, "缺少设备ID参数"))
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conn.Close()
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return
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}
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// 添加连接到映射
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wm.mutex.Lock()
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wm.connections[deviceID] = conn
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wm.mutex.Unlock()
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wm.logger.Info("设备 " + deviceID + " 已连接")
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// 发送连接成功消息
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successMsg := service.WebSocketMessage{
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Type: "system",
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Command: "connected",
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Timestamp: time.Now(),
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}
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conn.WriteJSON(successMsg)
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// 处理消息循环
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for {
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// 读取消息
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messageType, message, err := conn.ReadMessage()
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if err != nil {
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wm.logger.Error("读取设备 " + deviceID + " 消息失败: " + err.Error())
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break
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}
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// 只处理文本消息
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if messageType != websocket.TextMessage {
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continue
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}
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// 处理设备消息
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if err := wm.websocketService.HandleMessage(deviceID, message); err != nil {
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wm.logger.Error("处理设备 " + deviceID + " 消息失败: " + err.Error())
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continue
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}
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}
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// 连接断开时清理
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wm.mutex.Lock()
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delete(wm.connections, deviceID)
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wm.mutex.Unlock()
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conn.Close()
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wm.logger.Info("设备 " + deviceID + " 已断开连接")
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}
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// SendCommand 向指定设备发送指令
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func (wm *WebSocketManager) SendCommand(deviceID, command string, data interface{}) error {
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wm.mutex.RLock()
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conn, exists := wm.connections[deviceID]
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wm.mutex.RUnlock()
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if !exists {
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return wm.websocketService.SendCommand(deviceID, command, data)
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}
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// 构造消息
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msg := service.WebSocketMessage{
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Type: service.MessageTypeCommand,
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Command: command,
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Data: data,
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Timestamp: time.Now(),
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}
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// 发送消息
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if err := conn.WriteJSON(msg); err != nil {
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return err
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}
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return nil
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}
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// GetConnectedDevices 获取已连接的设备列表
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func (wm *WebSocketManager) GetConnectedDevices() []string {
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wm.mutex.RLock()
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defer wm.mutex.RUnlock()
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devices := make([]string, 0, len(wm.connections))
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for deviceID := range wm.connections {
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devices = append(devices, deviceID)
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}
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return devices
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}
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@@ -1,194 +0,0 @@
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// Package core 提供WebSocket服务功能
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// 实现中继设备和平台之间的双向通信
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package core
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import (
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"encoding/json"
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"fmt"
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"sync"
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"time"
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"git.huangwc.com/pig/pig-farm-controller/internal/logs"
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"git.huangwc.com/pig/pig-farm-controller/internal/model"
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"git.huangwc.com/pig/pig-farm-controller/internal/storage/repository"
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"github.com/gorilla/websocket"
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)
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// WebSocket消息类型常量
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const (
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// MessageTypeCommand 平台向设备发送的指令
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MessageTypeCommand = "command"
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// MessageTypeResponse 设备向平台发送的响应
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MessageTypeResponse = "response"
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// MessageTypeHeartbeat 心跳消息
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MessageTypeHeartbeat = "heartbeat"
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)
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// WebSocketMessage WebSocket消息结构
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type WebSocketMessage struct {
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// Type 消息类型
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Type string `json:"type"`
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// DeviceID 设备ID
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DeviceID string `json:"device_id,omitempty"`
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// Command 指令内容
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Command string `json:"command,omitempty"`
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// Data 消息数据
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Data interface{} `json:"data,omitempty"`
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// Timestamp 时间戳
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Timestamp time.Time `json:"timestamp"`
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}
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// DeviceConnection 设备连接信息
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type DeviceConnection struct {
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// DeviceID 设备ID
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DeviceID string
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// Connection WebSocket连接
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Connection *websocket.Conn
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// LastHeartbeat 最后心跳时间
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LastHeartbeat time.Time
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// DeviceInfo 设备信息
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DeviceInfo *model.Device
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}
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// WebSocketService WebSocket服务
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type WebSocketService struct {
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// connections 设备连接映射
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connections map[string]*DeviceConnection
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// mutex 互斥锁
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mutex sync.RWMutex
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// logger 日志记录器
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logger *logs.Logger
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// deviceRepo 设备仓库
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deviceRepo repository.DeviceRepo
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}
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// NewWebSocketService 创建WebSocket服务实例
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func NewWebSocketService(deviceRepo repository.DeviceRepo) *WebSocketService {
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return &WebSocketService{
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connections: make(map[string]*DeviceConnection),
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logger: logs.NewLogger(),
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deviceRepo: deviceRepo,
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}
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}
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// getDeviceDisplayName 获取设备显示名称
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func (ws *WebSocketService) getDeviceDisplayName(deviceID string) string {
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if ws.deviceRepo != nil {
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if device, err := ws.deviceRepo.FindByIDString(deviceID); err == nil && device != nil {
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return fmt.Sprintf("%s(id:%s)", device.Name, deviceID)
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}
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}
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return fmt.Sprintf("未知设备(id:%s)", deviceID)
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}
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// AddConnection 添加设备连接
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func (ws *WebSocketService) AddConnection(deviceID string, conn *websocket.Conn) {
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ws.mutex.Lock()
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defer ws.mutex.Unlock()
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ws.connections[deviceID] = &DeviceConnection{
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DeviceID: deviceID,
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Connection: conn,
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LastHeartbeat: time.Now(),
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}
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deviceName := ws.getDeviceDisplayName(deviceID)
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ws.logger.Info(fmt.Sprintf("设备 %s 已连接", deviceName))
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}
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// RemoveConnection 移除设备连接
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func (ws *WebSocketService) RemoveConnection(deviceID string) {
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ws.mutex.Lock()
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defer ws.mutex.Unlock()
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deviceName := ws.getDeviceDisplayName(deviceID)
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delete(ws.connections, deviceID)
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ws.logger.Info(fmt.Sprintf("设备 %s 已断开连接", deviceName))
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}
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// SendCommand 向指定设备发送指令
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func (ws *WebSocketService) SendCommand(deviceID, command string, data interface{}) error {
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ws.mutex.RLock()
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deviceConn, exists := ws.connections[deviceID]
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ws.mutex.RUnlock()
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deviceName := ws.getDeviceDisplayName(deviceID)
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if !exists {
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return fmt.Errorf("设备 %s 未连接", deviceName)
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}
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// 构造消息
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msg := WebSocketMessage{
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Type: MessageTypeCommand,
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Command: command,
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Data: data,
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Timestamp: time.Now(),
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}
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// 发送消息
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if err := deviceConn.Connection.WriteJSON(msg); err != nil {
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return fmt.Errorf("向设备 %s 发送指令失败: %v", deviceName, err)
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}
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return nil
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}
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// GetConnectedDevices 获取已连接的设备列表
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func (ws *WebSocketService) GetConnectedDevices() []string {
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ws.mutex.RLock()
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defer ws.mutex.RUnlock()
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devices := make([]string, 0, len(ws.connections))
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for deviceID := range ws.connections {
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devices = append(devices, deviceID)
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}
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return devices
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}
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// HandleMessage 处理来自设备的消息
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func (ws *WebSocketService) HandleMessage(deviceID string, message []byte) error {
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// 解析消息
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var msg WebSocketMessage
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if err := json.Unmarshal(message, &msg); err != nil {
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return fmt.Errorf("解析设备 %s 消息失败: %v", ws.getDeviceDisplayName(deviceID), err)
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}
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// 更新心跳时间
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if msg.Type == MessageTypeHeartbeat {
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ws.mutex.Lock()
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if deviceConn, exists := ws.connections[deviceID]; exists {
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deviceConn.LastHeartbeat = time.Now()
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}
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ws.mutex.Unlock()
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}
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// 记录消息日志
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ws.logger.Info(fmt.Sprintf("收到来自设备 %s 的消息: %v", ws.getDeviceDisplayName(deviceID), msg))
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return nil
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}
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// GetDeviceConnection 获取设备连接信息
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func (ws *WebSocketService) GetDeviceConnection(deviceID string) (*DeviceConnection, bool) {
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ws.mutex.RLock()
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defer ws.mutex.RUnlock()
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deviceConn, exists := ws.connections[deviceID]
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return deviceConn, exists
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}
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