feat: add logging to existing services

local/api/api.go

@@ -34,6 +34,8 @@ func Init(di *dig.Container, app *fiber.App) {
 		WebSocket:    groups.Group("/ws"),
 		Leaderboard:  serverIdGroup.Group("/leaderboard"),
 		Steam:        groups.Group("/steam"),
+		ActivityLog:  serverIdGroup.Group("/activity-log"),
+		Groups:       groups,
 	}
 
 	accessKeyMiddleware := middleware.NewAccessKeyMiddleware()

local/controller/activity_log.go

@@ -0,0 +1,72 @@
+package controller
+
+import (
+	"acc-server-manager/local/middleware"
+	"acc-server-manager/local/model"
+	"acc-server-manager/local/service"
+	"acc-server-manager/local/utl/common"
+	"acc-server-manager/local/utl/error_handler"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+type ActivityLogController struct {
+	service      *service.ActivityLogService
+	errorHandler *error_handler.ControllerErrorHandler
+}
+
+func NewActivityLogController(as *service.ActivityLogService, routeGroups *common.RouteGroups, auth *middleware.AuthMiddleware) *ActivityLogController {
+	ac := &ActivityLogController{
+		service:      as,
+		errorHandler: error_handler.NewControllerErrorHandler(),
+	}
+
+	// Per-server activity log: GET /server/:id/activity-log
+	routeGroups.ActivityLog.Use(auth.Authenticate)
+	routeGroups.ActivityLog.Get("/", ac.GetServerLogs)
+
+	// Global activity log: GET /activity-log (admin use)
+	routeGroups.Groups.Group("/activity-log").Use(auth.Authenticate).Get("/", ac.GetAllLogs)
+
+	return ac
+}
+
+// GetServerLogs returns activity logs for a specific server.
+//
+//	@Summary		Return activity logs for a server
+//	@Tags			ActivityLog
+//	@Success		200	{array}	model.ActivityLog
+//	@Router			/server/{id}/activity-log [get]
+func (ac *ActivityLogController) GetServerLogs(c *fiber.Ctx) error {
+	var filter model.ActivityLogFilter
+	if err := common.ParseQueryFilter(c, &filter); err != nil {
+		return ac.errorHandler.HandleValidationError(c, err, "query_filter")
+	}
+
+	result, err := ac.service.GetAll(c.UserContext(), &filter)
+	if err != nil {
+		return ac.errorHandler.HandleServiceError(c, err)
+	}
+
+	return c.JSON(result)
+}
+
+// GetAllLogs returns activity logs across all servers (admin).
+//
+//	@Summary		Return all activity logs
+//	@Tags			ActivityLog
+//	@Success		200	{array}	model.ActivityLog
+//	@Router			/activity-log [get]
+func (ac *ActivityLogController) GetAllLogs(c *fiber.Ctx) error {
+	var filter model.ActivityLogFilter
+	if err := common.ParseQueryFilter(c, &filter); err != nil {
+		return ac.errorHandler.HandleValidationError(c, err, "query_filter")
+	}
+
+	result, err := ac.service.GetAll(c.UserContext(), &filter)
+	if err != nil {
+		return ac.errorHandler.HandleServiceError(c, err)
+	}
+
+	return c.JSON(result)
+}

local/controller/controller.go

@@ -69,4 +69,9 @@ func InitializeControllers(c *dig.Container) {
 	if err != nil {
 		logging.Panic("unable to initialize steam controller")
 	}
+
+	err = c.Invoke(NewActivityLogController)
+	if err != nil {
+		logging.Panic("unable to initialize activity log controller")
+	}
 }

local/controller/leaderboard.go

@@ -11,6 +11,7 @@ import (
 	"github.com/google/uuid"
 )
 
+
 type LeaderboardController struct {
 	service      *service.LeaderboardService
 	errorHandler *error_handler.ControllerErrorHandler
@@ -60,7 +61,14 @@ func (lc *LeaderboardController) Update(c *fiber.Ctx) error {
 		return lc.errorHandler.HandleParsingError(c, err)
 	}
 
-	data, err := lc.service.Update(c.UserContext(), serverID, &input)
+	userInfo, _ := c.Locals("userInfo").(*middleware.CachedUserInfo)
+	actorID, actorUsername := "", "system"
+	if userInfo != nil {
+		actorID = userInfo.UserID
+		actorUsername = userInfo.Username
+	}
+
+	data, err := lc.service.Update(c.UserContext(), serverID, &input, actorID, actorUsername)
 	if err != nil {
 		return lc.errorHandler.HandleServiceError(c, err)
 	}

local/middleware/auth.go

@@ -115,6 +115,7 @@ func (m *AuthMiddleware) AuthenticateWithHandler(jwtHandler *jwt.JWTHandler, isO
 	if os.Getenv("TESTING_ENV") == "true" {
 		userInfo := CachedUserInfo{UserID: uuid.New().String(), Username: "test@example.com", RoleName: "Admin", Permissions: make(map[string]bool), CachedAt: time.Now()}
 		ctx.Locals("userID", userInfo.UserID)
+		ctx.Locals("actorUsername", userInfo.Username)
 		ctx.Locals("userInfo", userInfo)
 		ctx.Locals("authTime", time.Now())
 	} else {
@@ -127,6 +128,7 @@ func (m *AuthMiddleware) AuthenticateWithHandler(jwtHandler *jwt.JWTHandler, isO
 		}
 
 		ctx.Locals("userID", claims.UserID)
+		ctx.Locals("actorUsername", userInfo.Username)
 		ctx.Locals("userInfo", userInfo)
 		ctx.Locals("authTime", time.Now())
 	}

local/migrations/006_add_activity_log.go

@@ -0,0 +1,33 @@
+package migrations
+
+import (
+	"acc-server-manager/local/utl/logging"
+	"fmt"
+
+	"gorm.io/gorm"
+)
+
+func RunAddActivityLogMigration(db *gorm.DB) error {
+	if err := db.AutoMigrate(&MigrationRecord{}); err != nil {
+		return fmt.Errorf("failed to ensure migration_records table: %v", err)
+	}
+
+	var record MigrationRecord
+	if err := db.Where("migration_name = ?", "006_add_activity_log").First(&record).Error; err == nil {
+		logging.Info("Activity log migration already applied, skipping")
+		return nil
+	}
+
+	record = MigrationRecord{
+		MigrationName: "006_add_activity_log",
+		AppliedAt:     "datetime('now')",
+		Success:       true,
+		Notes:         "Added ActivityLog table via GORM AutoMigrate",
+	}
+	if err := db.Create(&record).Error; err != nil {
+		return fmt.Errorf("failed to record migration 006: %v", err)
+	}
+
+	logging.Info("Activity log migration recorded")
+	return nil
+}

local/model/activity_log.go

@@ -0,0 +1,81 @@
+package model
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+type ActionType string
+
+const (
+	ActionConfigUpdate      ActionType = "config_update"
+	ActionServerStart       ActionType = "server_start"
+	ActionServerStop        ActionType = "server_stop"
+	ActionServerRestart     ActionType = "server_restart"
+	ActionLeaderboardUpdate ActionType = "leaderboard_update"
+)
+
+type ActivityLog struct {
+	ID        uuid.UUID  `json:"id"        gorm:"type:uuid;primary_key;"`
+	ServerID  uuid.UUID  `json:"serverId"  gorm:"not null;type:uuid;index"`
+	UserID    string     `json:"userId"    gorm:"not null"`
+	Username  string     `json:"username"  gorm:"not null"`
+	Action    ActionType `json:"action"    gorm:"not null"`
+	Details   string     `json:"details"   gorm:"type:text"`
+	CreatedAt time.Time  `json:"createdAt"`
+}
+
+func (a *ActivityLog) BeforeCreate(tx *gorm.DB) error {
+	if a.ID == uuid.Nil {
+		a.ID = uuid.New()
+	}
+	if a.CreatedAt.IsZero() {
+		a.CreatedAt = time.Now().UTC()
+	}
+	return nil
+}
+
+type ActivityLogFilter struct {
+	BaseFilter
+	ServerBasedFilter
+	DateRangeFilter
+	UserID string     `query:"user_id"`
+	Action ActionType `query:"action"`
+}
+
+func (f *ActivityLogFilter) ApplyFilter(query *gorm.DB) *gorm.DB {
+	if f.ServerID != "" {
+		if serverUUID, err := uuid.Parse(f.ServerID); err == nil {
+			query = query.Where("server_id = ?", serverUUID)
+		}
+	}
+	if f.UserID != "" {
+		query = query.Where("user_id = ?", f.UserID)
+	}
+	if f.Action != "" {
+		query = query.Where("action = ?", f.Action)
+	}
+	timeZero := time.Time{}
+	if f.StartDate != timeZero {
+		query = query.Where("created_at >= ?", f.StartDate)
+	}
+	if f.EndDate != timeZero {
+		query = query.Where("created_at <= ?", f.EndDate)
+	}
+	return query
+}
+
+func (f *ActivityLogFilter) GetSorting() (field string, desc bool) {
+	if f.SortBy == "" {
+		return "created_at", true
+	}
+	return f.SortBy, f.SortDesc
+}
+
+type LastActivityInfo struct {
+	UpdatedAt time.Time  `json:"updatedAt"`
+	Username  string     `json:"username"`
+	Action    ActionType `json:"action"`
+}

local/model/server.go

@@ -35,18 +35,19 @@ func (s *Server) ToServerAPI() *ServerAPI {
 }
 
 type Server struct {
-	ID           uuid.UUID     `gorm:"type:uuid;primary_key;" json:"id"`
-	Name         string        `gorm:"not null" json:"name"`
-	Status       ServiceStatus `json:"status" gorm:"-"`
-	IP           string        `gorm:"not null" json:"-"`
-	Port         int           `gorm:"not null" json:"-"`
-	Path         string        `gorm:"not null" json:"path"`
-	ServiceName  string        `gorm:"not null" json:"serviceName"`
-	Platform     string        `gorm:"not null;default:'windows'" json:"platform"`
-	ContainerID  string        `gorm:"default:''" json:"-"`
-	State        *ServerState  `gorm:"-" json:"state"`
-	DateCreated  time.Time     `json:"dateCreated"`
-	FromSteamCMD bool          `gorm:"not null; default:true" json:"-"`
+	ID           uuid.UUID         `gorm:"type:uuid;primary_key;" json:"id"`
+	Name         string            `gorm:"not null" json:"name"`
+	Status       ServiceStatus     `json:"status" gorm:"-"`
+	IP           string            `gorm:"not null" json:"-"`
+	Port         int               `gorm:"not null" json:"-"`
+	Path         string            `gorm:"not null" json:"path"`
+	ServiceName  string            `gorm:"not null" json:"serviceName"`
+	Platform     string            `gorm:"not null;default:'windows'" json:"platform"`
+	ContainerID  string            `gorm:"default:''" json:"-"`
+	State        *ServerState      `gorm:"-" json:"state"`
+	LastActivity *LastActivityInfo `gorm:"-" json:"lastActivity,omitempty"`
+	DateCreated  time.Time         `json:"dateCreated"`
+	FromSteamCMD bool              `gorm:"not null; default:true" json:"-"`
 }
 
 type PlayerState struct {

local/repository/activity_log.go

@@ -0,0 +1,75 @@
+package repository
+
+import (
+	"acc-server-manager/local/model"
+	"context"
+	"time"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+type ActivityLogRepository struct {
+	*BaseRepository[model.ActivityLog, model.ActivityLogFilter]
+}
+
+func NewActivityLogRepository(db *gorm.DB) *ActivityLogRepository {
+	return &ActivityLogRepository{
+		BaseRepository: NewBaseRepository[model.ActivityLog, model.ActivityLogFilter](db, model.ActivityLog{}),
+	}
+}
+
+func (r *ActivityLogRepository) Insert(ctx context.Context, entry *model.ActivityLog) error {
+	return r.BaseRepository.Insert(ctx, entry)
+}
+
+func (r *ActivityLogRepository) GetAll(ctx context.Context, filter *model.ActivityLogFilter) (*[]model.ActivityLog, error) {
+	return r.BaseRepository.GetAll(ctx, filter)
+}
+
+type lastActivityRow struct {
+	ServerID  string           `gorm:"column:server_id"`
+	CreatedAt time.Time        `gorm:"column:created_at"`
+	Username  string           `gorm:"column:username"`
+	Action    model.ActionType `gorm:"column:action"`
+}
+
+// GetLastActivityByServerIDs returns the most recent activity entry per server.
+// Uses a single GROUP BY query with MAX(created_at); SQLite selects the other
+// columns from the row that holds the max value — documented SQLite behaviour.
+func (r *ActivityLogRepository) GetLastActivityByServerIDs(ctx context.Context, serverIDs []uuid.UUID) (map[uuid.UUID]*model.LastActivityInfo, error) {
+	out := make(map[uuid.UUID]*model.LastActivityInfo)
+	if len(serverIDs) == 0 {
+		return out, nil
+	}
+
+	// Convert to string slice so the IN clause works with SQLite UUID strings.
+	ids := make([]string, len(serverIDs))
+	for i, id := range serverIDs {
+		ids[i] = id.String()
+	}
+
+	var rows []lastActivityRow
+	err := r.BaseRepository.db.WithContext(ctx).
+		Model(&model.ActivityLog{}).
+		Select("server_id, MAX(created_at) as created_at, username, action").
+		Where("server_id IN ?", ids).
+		Group("server_id").
+		Scan(&rows).Error
+	if err != nil {
+		return nil, err
+	}
+
+	for _, row := range rows {
+		serverUUID, err := uuid.Parse(row.ServerID)
+		if err != nil {
+			continue
+		}
+		out[serverUUID] = &model.LastActivityInfo{
+			UpdatedAt: row.CreatedAt,
+			Username:  row.Username,
+			Action:    row.Action,
+		}
+	}
+	return out, nil
+}

local/repository/repository.go

@@ -20,6 +20,7 @@ func InitializeRepositories(c *dig.Container) {
 	c.Provide(NewSteamCredentialsRepository)
 	c.Provide(NewMembershipRepository)
 	c.Provide(NewLeaderboardRepository)
+	c.Provide(NewActivityLogRepository)
 
 	if err := c.Provide(func() *model.Steam2FAManager {
 		manager := model.NewSteam2FAManager()

local/service/activity_log.go

@@ -0,0 +1,62 @@
+package service
+
+import (
+	"acc-server-manager/local/model"
+	"acc-server-manager/local/repository"
+	"acc-server-manager/local/utl/logging"
+	"context"
+	"encoding/json"
+	"fmt"
+)
+
+type ActivityLogService struct {
+	repo *repository.ActivityLogRepository
+}
+
+func NewActivityLogService(repo *repository.ActivityLogRepository) *ActivityLogService {
+	return &ActivityLogService{repo: repo}
+}
+
+// Log persists an activity log entry. Errors are logged but not returned so
+// callers can treat this as fire-and-forget.
+func (s *ActivityLogService) Log(ctx context.Context, entry *model.ActivityLog) error {
+	if err := s.repo.Insert(ctx, entry); err != nil {
+		logging.Error("Failed to insert activity log: %v", err)
+		return err
+	}
+	return nil
+}
+
+func (s *ActivityLogService) GetAll(ctx context.Context, filter *model.ActivityLogFilter) (*[]model.ActivityLog, error) {
+	return s.repo.GetAll(ctx, filter)
+}
+
+// BuildConfigDetails produces a JSON string summarising which top-level keys
+// changed between oldJSON and newJSON.
+func BuildConfigDetails(file string, oldJSON, newJSON []byte) string {
+	var oldMap, newMap map[string]interface{}
+
+	if err := json.Unmarshal(oldJSON, &oldMap); err != nil {
+		oldMap = map[string]interface{}{}
+	}
+	if err := json.Unmarshal(newJSON, &newMap); err != nil {
+		newMap = map[string]interface{}{}
+	}
+
+	var changedKeys []string
+	for key, newVal := range newMap {
+		oldVal, exists := oldMap[key]
+		if !exists {
+			changedKeys = append(changedKeys, key)
+			continue
+		}
+		oldBytes, _ := json.Marshal(oldVal)
+		newBytes, _ := json.Marshal(newVal)
+		if string(oldBytes) != string(newBytes) {
+			changedKeys = append(changedKeys, key)
+		}
+	}
+
+	keysJSON, _ := json.Marshal(changedKeys)
+	return fmt.Sprintf(`{"file":%q,"changed_keys":%s}`, file, string(keysJSON))
+}

local/service/config.go

@@ -68,14 +68,16 @@ type ConfigService struct {
 	repository       *repository.ConfigRepository
 	serverRepository *repository.ServerRepository
 	serverService    *ServerService
+	activityLog      *ActivityLogService
 	configCache      *model.ServerConfigCache
 }
 
-func NewConfigService(repository *repository.ConfigRepository, serverRepository *repository.ServerRepository) *ConfigService {
+func NewConfigService(repository *repository.ConfigRepository, serverRepository *repository.ServerRepository, activityLog *ActivityLogService) *ConfigService {
 	logging.Debug("Initializing ConfigService with 5m expiration and 1s throttle")
 	return &ConfigService{
 		repository:       repository,
 		serverRepository: serverRepository,
+		activityLog:      activityLog,
 		configCache: model.NewServerConfigCache(model.CacheConfig{
 			ExpirationTime: 5 * time.Minute,
 			ThrottleTime:   1 * time.Second,
@@ -120,6 +122,12 @@ func (as *ConfigService) UpdateAllConfigs(ctx *fiber.Ctx, req *model.Configurati
 		{SettingsJson, req.Settings},
 	}
 
+	actorID, _ := ctx.Locals("userID").(string)
+	actorUsername, _ := ctx.Locals("actorUsername").(string)
+	if actorUsername == "" {
+		actorUsername = "system"
+	}
+
 	var results []*model.Config
 	for _, entry := range entries {
 		if entry.body == nil {
@@ -137,6 +145,19 @@ func (as *ConfigService) UpdateAllConfigs(ctx *fiber.Ctx, req *model.Configurati
 			ChangedAt:  time.Now(),
 		})
 		results = append(results, result)
+
+		if as.activityLog != nil {
+			details := BuildConfigDetails(entry.fileName, oldDataUTF8, newData)
+			go func(details string) {
+				_ = as.activityLog.Log(context.Background(), &model.ActivityLog{
+					ServerID: serverUUID,
+					UserID:   actorID,
+					Username: actorUsername,
+					Action:   model.ActionConfigUpdate,
+					Details:  details,
+				})
+			}(details)
+		}
 	}
 
 	if len(results) > 0 {
@@ -152,7 +173,13 @@ func (as *ConfigService) UpdateConfig(ctx *fiber.Ctx, body *map[string]interface
 	configFile := ctx.Params("file")
 	override := ctx.QueryBool("override", false)
 
-	return as.updateConfigInternal(ctx.UserContext(), serverID, configFile, body, override)
+	actorID, _ := ctx.Locals("userID").(string)
+	actorUsername, _ := ctx.Locals("actorUsername").(string)
+	if actorUsername == "" {
+		actorUsername = "system"
+	}
+
+	return as.updateConfigInternal(ctx.UserContext(), serverID, configFile, body, override, actorID, actorUsername)
 }
 
 func (as *ConfigService) updateConfigFiles(ctx context.Context, server *model.Server, configFile string, body *map[string]interface{}, override bool) ([]byte, []byte, error) {
@@ -211,7 +238,7 @@ func (as *ConfigService) updateConfigFiles(ctx context.Context, server *model.Se
 	return oldDataUTF8, newData, nil
 }
 
-func (as *ConfigService) updateConfigInternal(ctx context.Context, serverID string, configFile string, body *map[string]interface{}, override bool) (*model.Config, error) {
+func (as *ConfigService) updateConfigInternal(ctx context.Context, serverID string, configFile string, body *map[string]interface{}, override bool, actorID, actorUsername string) (*model.Config, error) {
 	serverUUID, err := uuid.Parse(serverID)
 	if err != nil {
 		logging.Error("Invalid server ID format: %v", err)
@@ -230,8 +257,21 @@ func (as *ConfigService) updateConfigInternal(ctx context.Context, serverID stri
 	}
 
 	as.configCache.InvalidateServerCache(serverID)
-
 	as.serverService.StartAccServerRuntime(server)
+
+	if as.activityLog != nil {
+		details := BuildConfigDetails(configFile, oldDataUTF8, newData)
+		go func() {
+			_ = as.activityLog.Log(context.Background(), &model.ActivityLog{
+				ServerID: serverUUID,
+				UserID:   actorID,
+				Username: actorUsername,
+				Action:   model.ActionConfigUpdate,
+				Details:  details,
+			})
+		}()
+	}
+
 	return as.repository.UpdateConfig(ctx, &model.Config{
 		ServerID:   serverUUID,
 		ConfigFile: configFile,

local/service/leaderboard.go

@@ -3,6 +3,7 @@ package service
 import (
 	"acc-server-manager/local/model"
 	"acc-server-manager/local/repository"
+	"acc-server-manager/local/utl/logging"
 	"context"
 	"fmt"
 
@@ -10,11 +11,12 @@ import (
 )
 
 type LeaderboardService struct {
-	repo *repository.LeaderboardRepository
+	repo        *repository.LeaderboardRepository
+	activityLog *ActivityLogService
 }
 
-func NewLeaderboardService(repo *repository.LeaderboardRepository) *LeaderboardService {
-	return &LeaderboardService{repo: repo}
+func NewLeaderboardService(repo *repository.LeaderboardRepository, activityLog *ActivityLogService) *LeaderboardService {
+	return &LeaderboardService{repo: repo, activityLog: activityLog}
 }
 
 // Get returns the leaderboard for a server.
@@ -23,7 +25,7 @@ func (s *LeaderboardService) Get(ctx context.Context, serverID uuid.UUID) (*mode
 }
 
 // Update replaces the leaderboard for a server.
-func (s *LeaderboardService) Update(ctx context.Context, serverID uuid.UUID, lb *model.Leaderboard) (*model.Leaderboard, error) {
+func (s *LeaderboardService) Update(ctx context.Context, serverID uuid.UUID, lb *model.Leaderboard, actorID, actorUsername string) (*model.Leaderboard, error) {
 	if lb == nil {
 		return nil, fmt.Errorf("input is required")
 	}
@@ -33,5 +35,25 @@ func (s *LeaderboardService) Update(ctx context.Context, serverID uuid.UUID, lb
 	for i := range lb.Races {
 		lb.Races[i].Position = i
 	}
-	return s.repo.FullReplace(ctx, serverID, lb)
+	result, err := s.repo.FullReplace(ctx, serverID, lb)
+	if err != nil {
+		return nil, err
+	}
+
+	driverCount := len(lb.Drivers)
+	raceCount := len(lb.Races)
+	details := fmt.Sprintf(`{"driver_count":%d,"race_count":%d}`, driverCount, raceCount)
+	go func() {
+		if logErr := s.activityLog.Log(context.Background(), &model.ActivityLog{
+			ServerID: serverID,
+			UserID:   actorID,
+			Username: actorUsername,
+			Action:   model.ActionLeaderboardUpdate,
+			Details:  details,
+		}); logErr != nil {
+			logging.Error("Failed to log leaderboard update: %v", logErr)
+		}
+	}()
+
+	return result, nil
 }

local/service/server.go

@@ -26,12 +26,13 @@ const (
 type ServerService struct {
 	repository       *repository.ServerRepository
 	stateHistoryRepo *repository.StateHistoryRepository
+	activityLogRepo  *repository.ActivityLogRepository
 	apiService       *ServiceControlService
 	configService    *ConfigService
 	steamService     *SteamService
 	runtime          platform.ServerRuntime
 	firewall         platform.FirewallManager
-	logStreamer      platform.LogStreamer
+	logStreamer       platform.LogStreamer
 	portPool         *network.PortPoolManager
 	webSocketService *WebSocketService
 	instances        sync.Map // uuid.UUID → *tracking.AccServerInstance
@@ -56,6 +57,7 @@ func (s *ServerService) ensureLogTailing(server *model.Server, instance *trackin
 func NewServerService(
 	repository *repository.ServerRepository,
 	stateHistoryRepo *repository.StateHistoryRepository,
+	activityLogRepo *repository.ActivityLogRepository,
 	apiService *ServiceControlService,
 	configService *ConfigService,
 	steamService *SteamService,
@@ -68,6 +70,7 @@ func NewServerService(
 	service := &ServerService{
 		repository:       repository,
 		stateHistoryRepo: stateHistoryRepo,
+		activityLogRepo:  activityLogRepo,
 		apiService:       apiService,
 		configService:    configService,
 		steamService:     steamService,
@@ -266,6 +269,16 @@ func (s *ServerService) GetAll(ctx *fiber.Ctx, filter *model.ServerFilter) (*[]m
 		return nil, err
 	}
 
+	// Collect server IDs for a single last-activity lookup.
+	serverIDs := make([]uuid.UUID, len(*servers))
+	for i, srv := range *servers {
+		serverIDs[i] = srv.ID
+	}
+	lastActivities, laErr := s.activityLogRepo.GetLastActivityByServerIDs(ctx.UserContext(), serverIDs)
+	if laErr != nil {
+		logging.Error("Failed to get last activities for server list: %v", laErr)
+	}
+
 	for i := range *servers {
 		server := &(*servers)[i]
 		status, err := s.apiService.GetCachedStatus(server.ServiceName)
@@ -282,6 +295,11 @@ func (s *ServerService) GetAll(ctx *fiber.Ctx, filter *model.ServerFilter) (*[]m
 				server.State = serverInstance.State
 			}
 		}
+		if lastActivities != nil {
+			if info, ok := lastActivities[server.ID]; ok {
+				server.LastActivity = info
+			}
+		}
 	}
 
 	return servers, nil

local/service/service.go

@@ -23,6 +23,7 @@ func InitializeServices(c *dig.Container) {
 
 	logging.Debug("Registering services")
 	c.Provide(NewSteamService)
+	c.Provide(NewActivityLogService)
 	c.Provide(NewServerService)
 	c.Provide(NewStateHistoryService)
 	c.Provide(NewServiceControlService)

local/service/service_control.go

@@ -15,6 +15,7 @@ type ServiceControlService struct {
 	repository       *repository.ServiceControlRepository
 	serverRepository *repository.ServerRepository
 	serverService    *ServerService
+	activityLog      *ActivityLogService
 	statusCache      *model.ServerStatusCache
 	runtime          platform.ServerRuntime
 }
@@ -23,11 +24,13 @@ func NewServiceControlService(
 	repository *repository.ServiceControlRepository,
 	serverRepository *repository.ServerRepository,
 	runtime platform.ServerRuntime,
+	activityLog *ActivityLogService,
 ) *ServiceControlService {
 	return &ServiceControlService{
 		repository:       repository,
 		serverRepository: serverRepository,
 		runtime:          runtime,
+		activityLog:      activityLog,
 		statusCache: model.NewServerStatusCache(model.CacheConfig{
 			ExpirationTime: 30 * time.Second,
 			ThrottleTime:   5 * time.Second,
@@ -36,6 +39,28 @@ func NewServiceControlService(
 	}
 }
 
+// getServerFromCtx resolves the server from ctx locals (serverId or service name).
+func (as *ServiceControlService) getServerFromCtx(ctx *fiber.Ctx) (*model.Server, error) {
+	serviceName, ok := ctx.Locals("service").(string)
+	if !ok || serviceName == "" {
+		serverId, ok2 := ctx.Locals("serverId").(string)
+		if !ok2 || serverId == "" {
+			return nil, errors.New("service name missing")
+		}
+		return as.serverRepository.GetByID(ctx.UserContext(), serverId)
+	}
+	return as.serverRepository.GetFirstByServiceName(ctx.UserContext(), serviceName)
+}
+
+func extractActor(ctx *fiber.Ctx) (actorID, actorUsername string) {
+	actorID, _ = ctx.Locals("userID").(string)
+	actorUsername, _ = ctx.Locals("actorUsername").(string)
+	if actorUsername == "" {
+		actorUsername = "system"
+	}
+	return
+}
+
 func (as *ServiceControlService) SetServerService(serverService *ServerService) {
 	as.serverService = serverService
 }
@@ -61,10 +86,11 @@ func (as *ServiceControlService) GetStatus(ctx *fiber.Ctx) (string, error) {
 }
 
 func (as *ServiceControlService) ServiceControlStartServer(ctx *fiber.Ctx) (string, error) {
-	serviceName, err := as.GetServiceName(ctx)
+	server, err := as.getServerFromCtx(ctx)
 	if err != nil {
 		return "", err
 	}
+	serviceName := server.ServiceName
 
 	as.statusCache.UpdateStatus(serviceName, model.StatusStarting)
 
@@ -79,14 +105,29 @@ func (as *ServiceControlService) ServiceControlStartServer(ctx *fiber.Ctx) (stri
 
 	status := model.ParseServiceStatus(statusStr)
 	as.statusCache.UpdateStatus(serviceName, status)
+
+	if as.activityLog != nil {
+		actorID, actorUsername := extractActor(ctx)
+		go func() {
+			_ = as.activityLog.Log(context.Background(), &model.ActivityLog{
+				ServerID: server.ID,
+				UserID:   actorID,
+				Username: actorUsername,
+				Action:   model.ActionServerStart,
+				Details:  `{"service":"` + serviceName + `"}`,
+			})
+		}()
+	}
+
 	return status.String(), nil
 }
 
 func (as *ServiceControlService) ServiceControlStopServer(ctx *fiber.Ctx) (string, error) {
-	serviceName, err := as.GetServiceName(ctx)
+	server, err := as.getServerFromCtx(ctx)
 	if err != nil {
 		return "", err
 	}
+	serviceName := server.ServiceName
 
 	as.statusCache.UpdateStatus(serviceName, model.StatusStopping)
 
@@ -101,14 +142,29 @@ func (as *ServiceControlService) ServiceControlStopServer(ctx *fiber.Ctx) (strin
 
 	status := model.ParseServiceStatus(statusStr)
 	as.statusCache.UpdateStatus(serviceName, status)
+
+	if as.activityLog != nil {
+		actorID, actorUsername := extractActor(ctx)
+		go func() {
+			_ = as.activityLog.Log(context.Background(), &model.ActivityLog{
+				ServerID: server.ID,
+				UserID:   actorID,
+				Username: actorUsername,
+				Action:   model.ActionServerStop,
+				Details:  `{"service":"` + serviceName + `"}`,
+			})
+		}()
+	}
+
 	return status.String(), nil
 }
 
 func (as *ServiceControlService) ServiceControlRestartServer(ctx *fiber.Ctx) (string, error) {
-	serviceName, err := as.GetServiceName(ctx)
+	server, err := as.getServerFromCtx(ctx)
 	if err != nil {
 		return "", err
 	}
+	serviceName := server.ServiceName
 
 	as.statusCache.UpdateStatus(serviceName, model.StatusRestarting)
 
@@ -123,6 +179,20 @@ func (as *ServiceControlService) ServiceControlRestartServer(ctx *fiber.Ctx) (st
 
 	status := model.ParseServiceStatus(statusStr)
 	as.statusCache.UpdateStatus(serviceName, status)
+
+	if as.activityLog != nil {
+		actorID, actorUsername := extractActor(ctx)
+		go func() {
+			_ = as.activityLog.Log(context.Background(), &model.ActivityLog{
+				ServerID: server.ID,
+				UserID:   actorID,
+				Username: actorUsername,
+				Action:   model.ActionServerRestart,
+				Details:  `{"service":"` + serviceName + `"}`,
+			})
+		}()
+	}
+
 	return status.String(), nil
 }
 

local/utl/common/common.go

@@ -28,6 +28,8 @@ type RouteGroups struct {
 	WebSocket    fiber.Router
 	Leaderboard  fiber.Router
 	Steam        fiber.Router
+	ActivityLog  fiber.Router
+	Groups       fiber.Router
 }
 
 func CheckError(err error) {

local/utl/db/db.go

@@ -54,6 +54,7 @@ func Migrate(db *gorm.DB) {
 		&model.LeaderboardRace{},
 		&model.LeaderboardResult{},
 		&model.LeaderboardPointRow{},
+		&model.ActivityLog{},
 	)
 
 	if err != nil {
@@ -80,6 +81,10 @@ func runMigrations(db *gorm.DB) {
 		logging.Error("Failed to run platform columns migration: %v", err)
 	}
 
+	if err := migrations.RunAddActivityLogMigration(db); err != nil {
+		logging.Error("Failed to run activity log migration: %v", err)
+	}
+
 	logging.Info("Custom database migrations completed")
 }
 

tests/unit/service/config_service_test.go

@@ -20,7 +20,7 @@ func TestConfigService_GetConfiguration_ValidFile(t *testing.T) {
 
 	configRepo := repository.NewConfigRepository(helper.DB)
 	serverRepo := repository.NewServerRepository(helper.DB)
-	configService := service.NewConfigService(configRepo, serverRepo)
+	configService := service.NewConfigService(configRepo, serverRepo, nil)
 
 	config, err := configService.GetConfiguration(helper.TestData.Server)
 	tests.AssertNoError(t, err)
@@ -43,7 +43,7 @@ func TestConfigService_GetEventConfig_ValidFile(t *testing.T) {
 
 	configRepo := repository.NewConfigRepository(helper.DB)
 	serverRepo := repository.NewServerRepository(helper.DB)
-	configService := service.NewConfigService(configRepo, serverRepo)
+	configService := service.NewConfigService(configRepo, serverRepo, nil)
 
 	eventConfig, err := configService.GetEventConfig(helper.TestData.Server)
 	tests.AssertNoError(t, err)
@@ -73,7 +73,7 @@ func TestConfigService_SaveConfiguration_Success(t *testing.T) {
 
 	configRepo := repository.NewConfigRepository(helper.DB)
 	serverRepo := repository.NewServerRepository(helper.DB)
-	configService := service.NewConfigService(configRepo, serverRepo)
+	configService := service.NewConfigService(configRepo, serverRepo, nil)
 
 	newConfig := &model.Configuration{
 		UdpPort:         model.IntString(9999),
@@ -115,7 +115,7 @@ func TestConfigService_LoadConfigs_Success(t *testing.T) {
 
 	configRepo := repository.NewConfigRepository(helper.DB)
 	serverRepo := repository.NewServerRepository(helper.DB)
-	configService := service.NewConfigService(configRepo, serverRepo)
+	configService := service.NewConfigService(configRepo, serverRepo, nil)
 
 	configs, err := configService.LoadConfigs(helper.TestData.Server)
 	tests.AssertNoError(t, err)
@@ -142,7 +142,7 @@ func TestConfigService_MalformedJSON(t *testing.T) {
 
 	configRepo := repository.NewConfigRepository(helper.DB)
 	serverRepo := repository.NewServerRepository(helper.DB)
-	configService := service.NewConfigService(configRepo, serverRepo)
+	configService := service.NewConfigService(configRepo, serverRepo, nil)
 
 	config, err := configService.GetConfiguration(helper.TestData.Server)
 	if err == nil {
@@ -245,7 +245,7 @@ func TestConfigService_Caching_Configuration(t *testing.T) {
 
 	configRepo := repository.NewConfigRepository(helper.DB)
 	serverRepo := repository.NewServerRepository(helper.DB)
-	configService := service.NewConfigService(configRepo, serverRepo)
+	configService := service.NewConfigService(configRepo, serverRepo, nil)
 
 	config1, err := configService.GetConfiguration(helper.TestData.Server)
 	tests.AssertNoError(t, err)
@@ -276,7 +276,7 @@ func TestConfigService_Caching_EventConfig(t *testing.T) {
 
 	configRepo := repository.NewConfigRepository(helper.DB)
 	serverRepo := repository.NewServerRepository(helper.DB)
-	configService := service.NewConfigService(configRepo, serverRepo)
+	configService := service.NewConfigService(configRepo, serverRepo, nil)
 
 	event1, err := configService.GetEventConfig(helper.TestData.Server)
 	tests.AssertNoError(t, err)