From 84217c929e63f09a52a83448f2f4b42482d6402f Mon Sep 17 00:00:00 2001
From: laoboli <1293528695@qq.com>
Date: Wed, 29 Apr 2026 09:02:35 +0800
Subject: [PATCH] feat: system debug.

---
 .gitignore                  |   1 +
 controllers/system_debug.go | 102 ++++++++++++++
 main.go                     |   1 +
 mqtt/debug_service.go       | 273 ++++++++++++++++++++++++++++++++++++
 routes/routes.go            |   6 +
 5 files changed, 383 insertions(+)
 create mode 100644 controllers/system_debug.go
 create mode 100644 mqtt/debug_service.go

diff --git a/.gitignore b/.gitignore
index 186cd20..2e1ce1e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ config.yaml
 *.pdf
 *.md
 *.csv
+*.docx
diff --git a/controllers/system_debug.go b/controllers/system_debug.go
new file mode 100644
index 0000000..4c6f604
--- /dev/null
+++ b/controllers/system_debug.go
@@ -0,0 +1,102 @@
+package controllers
+
+import (
+	"errors"
+	"hr_receiver/models"
+	"hr_receiver/mqtt"
+	"hr_receiver/util"
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"github.com/gorilla/websocket"
+)
+
+type SystemDebugController struct{}
+
+type mqttDebugStartRequest struct {
+	PersistToDatabase bool `json:"persistToDatabase"`
+}
+
+var debugUpgrader = websocket.Upgrader{
+	CheckOrigin: func(r *http.Request) bool {
+		return true
+	},
+}
+
+func NewSystemDebugController() *SystemDebugController {
+	return &SystemDebugController{}
+}
+
+func (sc *SystemDebugController) MqttStatus(c *gin.Context) {
+	service := mqtt.GetDebugService()
+	if service == nil {
+		writeError(c, http.StatusServiceUnavailable, "mqtt debug service unavailable")
+		return
+	}
+	writeSuccess(c, http.StatusOK, "query success", service.Status())
+}
+
+func (sc *SystemDebugController) StartMqtt(c *gin.Context) {
+	service := mqtt.GetDebugService()
+	if service == nil {
+		writeError(c, http.StatusServiceUnavailable, "mqtt debug service unavailable")
+		return
+	}
+	var payload mqttDebugStartRequest
+	if err := c.ShouldBindJSON(&payload); err != nil && !errors.Is(err, http.ErrBodyNotAllowed) {
+		writeError(c, http.StatusBadRequest, err.Error())
+		return
+	}
+	if err := service.Start(payload.PersistToDatabase); err != nil {
+		writeError(c, http.StatusInternalServerError, err.Error())
+		return
+	}
+	writeSuccess(c, http.StatusOK, "start success", service.Status())
+}
+
+func (sc *SystemDebugController) StopMqtt(c *gin.Context) {
+	service := mqtt.GetDebugService()
+	if service == nil {
+		writeError(c, http.StatusServiceUnavailable, "mqtt debug service unavailable")
+		return
+	}
+	service.Stop()
+	writeSuccess(c, http.StatusOK, "stop success", service.Status())
+}
+
+func (sc *SystemDebugController) MqttWebSocket(c *gin.Context) {
+	service := mqtt.GetDebugService()
+	if service == nil {
+		c.JSON(http.StatusServiceUnavailable, gin.H{"error": "mqtt debug service unavailable"})
+		return
+	}
+
+	token := strings.TrimSpace(c.Query("token"))
+	if token == "" {
+		c.JSON(http.StatusUnauthorized, gin.H{"error": "missing token"})
+		return
+	}
+	claims, err := util.ParseToken(token)
+	if err != nil {
+		c.JSON(http.StatusUnauthorized, gin.H{"error": "invalid token"})
+		return
+	}
+	if claims.Role != models.UserRoleSuperAdmin {
+		c.JSON(http.StatusForbidden, gin.H{"error": "super admin required"})
+		return
+	}
+
+	conn, err := debugUpgrader.Upgrade(c.Writer, c.Request, nil)
+	if err != nil {
+		return
+	}
+	service.AddSubscriber(conn)
+	defer service.RemoveSubscriber(conn)
+
+	for {
+		if _, _, err := conn.ReadMessage(); err != nil {
+			break
+		}
+	}
+}
diff --git a/main.go b/main.go
index 31bce31..6395027 100644
--- a/main.go
+++ b/main.go
@@ -47,6 +47,7 @@ func main() {
 	if err := mqtt.Start(config.DB, config.App.MQTT); err != nil {
 		log.Printf("mqtt listener start failed: %v", err)
 	}
+	mqtt.InitDebugService(config.DB, config.App.MQTT)
 	controllers.StartLessonPlanCleanupJob(config.DB)
 
 	// 启动服务
diff --git a/mqtt/debug_service.go b/mqtt/debug_service.go
new file mode 100644
index 0000000..a1207bf
--- /dev/null
+++ b/mqtt/debug_service.go
@@ -0,0 +1,273 @@
+package mqtt
+
+import (
+	"crypto/tls"
+	"encoding/json"
+	"fmt"
+	"hr_receiver/config"
+	"hr_receiver/models"
+	"log"
+	"sync"
+	"time"
+
+	mqtt "github.com/eclipse/paho.mqtt.golang"
+	"github.com/gorilla/websocket"
+	"google.golang.org/protobuf/proto"
+	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
+	whgw_hrpb "hr_receiver/proto"
+)
+
+type DebugStatus struct {
+	Active            bool   `json:"active"`
+	ClientConnected   bool   `json:"clientConnected"`
+	PersistToDatabase bool   `json:"persistToDatabase"`
+	Region            string `json:"region"`
+	SubscriberCount   int    `json:"subscriberCount"`
+}
+
+type DebugEvent struct {
+	CardKey       string                          `json:"cardKey"`
+	Kind          string                          `json:"kind"`
+	RegionID      uint32                          `json:"regionId"`
+	ReceivedAt    int64                           `json:"receivedAt"`
+	Topic         string                          `json:"topic"`
+	HeartRate     *models.MqttHeartRateRecord     `json:"heartRate,omitempty"`
+	StepCount     *models.MqttStepCountRecord     `json:"stepCount,omitempty"`
+	GatewayStatus *models.MqttGatewayStatusRecord `json:"gatewayStatus,omitempty"`
+}
+
+type DebugService struct {
+	cfg               config.MQTTConfig
+	client            mqtt.Client
+	db                *gorm.DB
+	mu                sync.RWMutex
+	persistToDatabase bool
+	subscribers       map[*websocket.Conn]struct{}
+	active            bool
+}
+
+var globalDebugService *DebugService
+
+func InitDebugService(db *gorm.DB, cfg config.MQTTConfig) {
+	globalDebugService = &DebugService{
+		cfg:         cfg,
+		db:          db,
+		subscribers: make(map[*websocket.Conn]struct{}),
+	}
+}
+
+func GetDebugService() *DebugService {
+	return globalDebugService
+}
+
+func (s *DebugService) Status() DebugStatus {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return DebugStatus{
+		Active:            s.active,
+		ClientConnected:   s.client != nil && s.client.IsConnected(),
+		PersistToDatabase: s.persistToDatabase,
+		Region:            s.cfg.Region,
+		SubscriberCount:   len(s.subscribers),
+	}
+}
+
+func (s *DebugService) Start(persistToDatabase bool) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	if s.active && s.client != nil && s.client.IsConnected() {
+		s.persistToDatabase = persistToDatabase
+		return nil
+	}
+	if err := validateConfig(s.cfg); err != nil {
+		return err
+	}
+
+	client, err := s.connectLocked(persistToDatabase)
+	if err != nil {
+		return err
+	}
+	s.client = client
+	s.persistToDatabase = persistToDatabase
+	s.active = true
+	return nil
+}
+
+func (s *DebugService) Stop() {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if s.client != nil && s.client.IsConnected() {
+		s.client.Disconnect(250)
+	}
+	s.client = nil
+	s.active = false
+	s.persistToDatabase = false
+}
+
+func (s *DebugService) AddSubscriber(conn *websocket.Conn) {
+	s.mu.Lock()
+	s.subscribers[conn] = struct{}{}
+	s.mu.Unlock()
+}
+
+func (s *DebugService) RemoveSubscriber(conn *websocket.Conn) {
+	s.mu.Lock()
+	delete(s.subscribers, conn)
+	s.mu.Unlock()
+	_ = conn.Close()
+}
+
+func (s *DebugService) connectLocked(persistToDatabase bool) (mqtt.Client, error) {
+	opts := mqtt.NewClientOptions()
+	scheme := "tcp"
+	if s.cfg.UseTLS {
+		scheme = "ssl"
+		opts.SetTLSConfig(&tls.Config{MinVersion: tls.VersionTLS12})
+	}
+	broker := fmt.Sprintf("%s://%s:%d", scheme, s.cfg.Host, s.cfg.Port)
+	opts.AddBroker(broker)
+	opts.SetClientID(fmt.Sprintf("%s-debug-%d", s.cfg.ClientIDPrefix, time.Now().UnixNano()))
+	opts.SetUsername(s.cfg.Username)
+	opts.SetPassword(s.cfg.Password)
+	opts.SetKeepAlive(60 * time.Second)
+	opts.SetAutoReconnect(false)
+	opts.SetConnectRetry(false)
+	opts.SetDefaultPublishHandler(s.handleMessage)
+	opts.SetOnConnectHandler(func(client mqtt.Client) {
+		if err := s.subscribe(client); err != nil {
+			log.Printf("mqtt debug subscribe failed: %v", err)
+			return
+		}
+		log.Printf("mqtt debug connected to %s persist=%v", broker, persistToDatabase)
+	})
+	opts.SetConnectionLostHandler(func(client mqtt.Client, err error) {
+		log.Printf("mqtt debug connection lost: %v", err)
+		s.mu.Lock()
+		if s.client == client {
+			s.client = nil
+			s.active = false
+		}
+		s.mu.Unlock()
+	})
+
+	client := mqtt.NewClient(opts)
+	token := client.Connect()
+	if !token.WaitTimeout(15 * time.Second) {
+		return nil, fmt.Errorf("mqtt debug connect timeout")
+	}
+	if err := token.Error(); err != nil {
+		return nil, err
+	}
+	return client, nil
+}
+
+func (s *DebugService) subscribe(client mqtt.Client) error {
+	topics := []string{
+		fmt.Sprintf("/whgw/v2/region/%s/measurement/band/+/hr", s.cfg.Region),
+		fmt.Sprintf("/whgw/v2/region/%s/measurement/band/+/step", s.cfg.Region),
+		fmt.Sprintf("/whgw/v2/region/%s/gateway/+/status", s.cfg.Region),
+	}
+	for _, topic := range topics {
+		token := client.Subscribe(topic, byte(s.cfg.QoS), s.handleMessage)
+		if !token.WaitTimeout(10 * time.Second) {
+			return fmt.Errorf("mqtt debug subscribe timeout for topic %s", topic)
+		}
+		if err := token.Error(); err != nil {
+			return fmt.Errorf("mqtt debug subscribe topic %s: %w", topic, err)
+		}
+		log.Printf("mqtt debug subscribed: %s", topic)
+	}
+	return nil
+}
+
+func (s *DebugService) handleMessage(_ mqtt.Client, msg mqtt.Message) {
+	defer func() {
+		if r := recover(); r != nil {
+			log.Printf("mqtt debug handle panic topic=%s err=%v", msg.Topic(), r)
+		}
+	}()
+	if len(msg.Payload()) == 0 {
+		return
+	}
+
+	now := time.Now().UnixMilli()
+	var packet whgw_hrpb.GatewaySlaveOutCloudMasterInMsg
+	if err := proto.Unmarshal(msg.Payload(), &packet); err != nil {
+		log.Printf("mqtt debug payload parse failed topic=%s err=%v", msg.Topic(), err)
+		return
+	}
+
+	switch payload := packet.Choice.(type) {
+	case *whgw_hrpb.GatewaySlaveOutCloudMasterInMsg_NtfHrMeasurement:
+		record := buildHeartRateRecord(payload.NtfHrMeasurement, msg.Topic(), now)
+		s.maybePersist(&record)
+		s.broadcast(DebugEvent{
+			CardKey:    fmt.Sprintf("%d-%d", record.RegionID, record.BandID),
+			HeartRate:  &record,
+			Kind:       "heart_rate",
+			ReceivedAt: now,
+			RegionID:   record.RegionID,
+			Topic:      msg.Topic(),
+		})
+	case *whgw_hrpb.GatewaySlaveOutCloudMasterInMsg_NtfStepCountMeasurement:
+		record := buildStepCountRecord(payload.NtfStepCountMeasurement, msg.Topic(), now)
+		s.maybePersist(&record)
+		s.broadcast(DebugEvent{
+			CardKey:    fmt.Sprintf("%d-%d", record.RegionID, record.BandID),
+			Kind:       "step_count",
+			ReceivedAt: now,
+			RegionID:   record.RegionID,
+			StepCount:  &record,
+			Topic:      msg.Topic(),
+		})
+	case *whgw_hrpb.GatewaySlaveOutCloudMasterInMsg_NtfGatewayStatus:
+		record := buildGatewayStatusRecord(payload.NtfGatewayStatus, msg.Topic(), now)
+		s.maybePersist(&record)
+		s.broadcast(DebugEvent{
+			CardKey:       fmt.Sprintf("%d-%s", record.RegionID, record.GatewayMAC),
+			GatewayStatus: &record,
+			Kind:          "gateway_status",
+			ReceivedAt:    now,
+			RegionID:      record.RegionID,
+			Topic:         msg.Topic(),
+		})
+	default:
+		log.Printf("mqtt debug payload ignored topic=%s", msg.Topic())
+	}
+}
+
+func (s *DebugService) maybePersist(record interface{}) {
+	s.mu.RLock()
+	enabled := s.persistToDatabase
+	s.mu.RUnlock()
+	if !enabled {
+		return
+	}
+	if err := s.db.Clauses(clause.OnConflict{DoNothing: true}).Create(record).Error; err != nil {
+		log.Printf("mqtt debug persist failed type=%T err=%v", record, err)
+	}
+}
+
+func (s *DebugService) broadcast(event DebugEvent) {
+	payload, err := json.Marshal(event)
+	if err != nil {
+		log.Printf("mqtt debug marshal failed err=%v", err)
+		return
+	}
+
+	s.mu.RLock()
+	conns := make([]*websocket.Conn, 0, len(s.subscribers))
+	for conn := range s.subscribers {
+		conns = append(conns, conn)
+	}
+	s.mu.RUnlock()
+
+	for _, conn := range conns {
+		if err := conn.WriteMessage(websocket.TextMessage, payload); err != nil {
+			log.Printf("mqtt debug websocket send failed err=%v", err)
+			s.RemoveSubscriber(conn)
+		}
+	}
+}
diff --git a/routes/routes.go b/routes/routes.go
index e39e432..e09405b 100644
--- a/routes/routes.go
+++ b/routes/routes.go
@@ -16,6 +16,7 @@ func SetupRouter() *gin.Engine {
 	lessonPlanController := controllers.NewLessonPlanController()
 	kindergartenAdminController := controllers.NewKindergartenAdminController()
 	userAdminController := controllers.NewUserAdminController()
+	systemDebugController := controllers.NewSystemDebugController()
 
 	v1 := r.Group("/api/v1")
 	{
@@ -54,7 +55,12 @@ func SetupRouter() *gin.Engine {
 			admin.POST("/users", userAdminController.Create)
 			admin.PUT("/users/:id", userAdminController.Update)
 			admin.DELETE("/users/:id", userAdminController.Delete)
+
+			admin.GET("/system-debug/mqtt/status", systemDebugController.MqttStatus)
+			admin.POST("/system-debug/mqtt/start", systemDebugController.StartMqtt)
+			admin.POST("/system-debug/mqtt/stop", systemDebugController.StopMqtt)
 		}
+		v1.GET("/admin/system-debug/mqtt/ws", systemDebugController.MqttWebSocket)
 		v1.GET("/lesson-plans/share/:code/download", lessonPlanController.DownloadByShareCode)
 		public := v1.Group("")
 		{