ENV Update

Dockerfile

@@ -25,6 +25,10 @@ RUN mkdir -p /app/data && chown -R app:app /app
 EXPOSE 8002
 ENV HOST=0.0.0.0
 ENV PORT=8002
+ENV MAX_ACTIVITY_LOG_ENTRIES=400
+ENV ADMIN_LOG_BROADCAST_LIMIT=200
+ENV STALE_ROOM_CLEANUP_INTERVAL=5m
+ENV STALE_ROOM_TTL=30m
 
 USER app
 

README.md

@@ -43,6 +43,10 @@ Enterprise-style Scrum Poker application using Go, Gin, and SSE for real-time ro
 - `HOST`: server host/interface to bind (default all interfaces, equivalent to `0.0.0.0`)
 - `PORT`: server port (default `8002`)
 - `DATA_PATH`: directory for room JSON files (default `./data`)
+- `MAX_ACTIVITY_LOG_ENTRIES`: max stored activity log entries per room (default `400`)
+- `ADMIN_LOG_BROADCAST_LIMIT`: max recent admin log entries sent in SSE payloads (default `200`)
+- `STALE_ROOM_CLEANUP_INTERVAL`: cleanup ticker interval for stale rooms as Go duration (default `5m`)
+- `STALE_ROOM_TTL`: delete empty rooms when last activity is older than this Go duration (default `30m`)
 
 ## Run Locally
 
@@ -60,6 +64,16 @@ HOST=localhost PORT=8002 go run ./src
 HOST=0.0.0.0 PORT=8002 go run ./src
 ```
 
+State tuning example:
+
+```bash
+MAX_ACTIVITY_LOG_ENTRIES=600 \
+ADMIN_LOG_BROADCAST_LIMIT=300 \
+STALE_ROOM_CLEANUP_INTERVAL=2m \
+STALE_ROOM_TTL=45m \
+go run ./src
+```
+
 ## Docker
 
 Build:

src/config/config.go

@@ -1,11 +1,47 @@
 package config
 
-import "os"
+import (
+	"os"
+	"strconv"
+	"time"
+)
 
 type Config struct {
 	Host     string
 	Port     string
 	DataPath string
+	MaxActivityLogEntries   int
+	AdminLogBroadcastLimit  int
+	StaleRoomCleanupInterval time.Duration
+	StaleRoomTTL             time.Duration
+}
+
+func envIntOrDefault(name string, fallback int) int {
+	raw := os.Getenv(name)
+	if raw == "" {
+		return fallback
+	}
+
+	parsed, err := strconv.Atoi(raw)
+	if err != nil || parsed <= 0 {
+		return fallback
+	}
+
+	return parsed
+}
+
+func envDurationOrDefault(name string, fallback time.Duration) time.Duration {
+	raw := os.Getenv(name)
+	if raw == "" {
+		return fallback
+	}
+
+	parsed, err := time.ParseDuration(raw)
+	if err != nil || parsed <= 0 {
+		return fallback
+	}
+
+	return parsed
 }
 
 func Load() Config {
@@ -24,9 +60,18 @@ func Load() Config {
 		dataPath = "./data"
 	}
 
+	maxActivityLogEntries := envIntOrDefault("MAX_ACTIVITY_LOG_ENTRIES", 400)
+	adminLogBroadcastLimit := envIntOrDefault("ADMIN_LOG_BROADCAST_LIMIT", 200)
+	staleRoomCleanupInterval := envDurationOrDefault("STALE_ROOM_CLEANUP_INTERVAL", 5*time.Minute)
+	staleRoomTTL := envDurationOrDefault("STALE_ROOM_TTL", 30*time.Minute)
+
 	return Config{
 		Host:     host,
 		Port:     port,
 		DataPath: dataPath,
+		MaxActivityLogEntries:   maxActivityLogEntries,
+		AdminLogBroadcastLimit:  adminLogBroadcastLimit,
+		StaleRoomCleanupInterval: staleRoomCleanupInterval,
+		StaleRoomTTL:             staleRoomTTL,
 	}
 }

src/main.go

@@ -13,7 +13,12 @@ import (
 func main() {
 	cfg := config.Load()
 
-	manager, err := state.NewManager(cfg.DataPath)
+	manager, err := state.NewManager(cfg.DataPath, state.ManagerOptions{
+		MaxActivityLogEntries:   cfg.MaxActivityLogEntries,
+		AdminLogBroadcastLimit:  cfg.AdminLogBroadcastLimit,
+		StaleRoomCleanupInterval: cfg.StaleRoomCleanupInterval,
+		StaleRoomTTL:             cfg.StaleRoomTTL,
+	})
 	if err != nil {
 		log.Fatalf("failed to initialize state manager: %v", err)
 	}

src/state/manager.go

@@ -11,27 +11,61 @@ import (
 )
 
 const (
-	maxActivityLogEntries   = 400
+	defaultMaxActivityLogEntries   = 400
-	adminLogBroadcastLimit  = 200
+	defaultAdminLogBroadcastLimit  = 200
-	staleRoomCleanupInterval = 5 * time.Minute
+	defaultStaleRoomCleanupInterval = 5 * time.Minute
-	staleRoomTTL             = 30 * time.Minute
+	defaultStaleRoomTTL             = 30 * time.Minute
 )
 
 type Manager struct {
 	mu    sync.RWMutex
 	rooms map[string]*Room
 	store *DiskStore
+
+	maxActivityLogEntries   int
+	adminLogBroadcastLimit  int
+	staleRoomCleanupInterval time.Duration
+	staleRoomTTL             time.Duration
 }
 
-func NewManager(dataPath string) (*Manager, error) {
+type ManagerOptions struct {
+	MaxActivityLogEntries   int
+	AdminLogBroadcastLimit  int
+	StaleRoomCleanupInterval time.Duration
+	StaleRoomTTL             time.Duration
+}
+
+func normalizeManagerOptions(opts ManagerOptions) ManagerOptions {
+	if opts.MaxActivityLogEntries <= 0 {
+		opts.MaxActivityLogEntries = defaultMaxActivityLogEntries
+	}
+	if opts.AdminLogBroadcastLimit <= 0 {
+		opts.AdminLogBroadcastLimit = defaultAdminLogBroadcastLimit
+	}
+	if opts.StaleRoomCleanupInterval <= 0 {
+		opts.StaleRoomCleanupInterval = defaultStaleRoomCleanupInterval
+	}
+	if opts.StaleRoomTTL <= 0 {
+		opts.StaleRoomTTL = defaultStaleRoomTTL
+	}
+
+	return opts
+}
+
+func NewManager(dataPath string, opts ManagerOptions) (*Manager, error) {
 	store, err := NewDiskStore(dataPath)
 	if err != nil {
 		return nil, err
 	}
+	normalizedOpts := normalizeManagerOptions(opts)
 
 	manager := &Manager{
 		rooms: make(map[string]*Room),
 		store: store,
+		maxActivityLogEntries:   normalizedOpts.MaxActivityLogEntries,
+		adminLogBroadcastLimit:  normalizedOpts.AdminLogBroadcastLimit,
+		staleRoomCleanupInterval: normalizedOpts.StaleRoomCleanupInterval,
+		staleRoomTTL:             normalizedOpts.StaleRoomTTL,
 	}
 
 	if loadErr := manager.loadFromDisk(); loadErr != nil {
@@ -43,7 +77,7 @@ func NewManager(dataPath string) (*Manager, error) {
 }
 
 func (m *Manager) startCleanupLoop() {
-	ticker := time.NewTicker(staleRoomCleanupInterval)
+	ticker := time.NewTicker(m.staleRoomCleanupInterval)
 
 	go func() {
 		defer ticker.Stop()
@@ -65,7 +99,7 @@ func (m *Manager) cleanupStaleRooms(now time.Time) {
 		room.mu.Lock()
 		roomID := room.ID
 		hasConnected := hasConnectedParticipantsLocked(room)
-		recentlyActive := now.Sub(room.UpdatedAt) < staleRoomTTL
+		recentlyActive := now.Sub(room.UpdatedAt) < m.staleRoomTTL
 		hasSubscribers := len(room.subscribers) > 0
 		room.mu.Unlock()
 
@@ -81,7 +115,7 @@ func (m *Manager) cleanupStaleRooms(now time.Time) {
 		}
 
 		current.mu.Lock()
-		if hasConnectedParticipantsLocked(current) || now.Sub(current.UpdatedAt) < staleRoomTTL || len(current.subscribers) > 0 {
+		if hasConnectedParticipantsLocked(current) || now.Sub(current.UpdatedAt) < m.staleRoomTTL || len(current.subscribers) > 0 {
 			current.mu.Unlock()
 			m.mu.Unlock()
 			continue
@@ -747,8 +781,8 @@ func (m *Manager) marshalRoomState(room *Room, viewerParticipantID string) ([]by
 		state.Links.AdminLink = "/room/" + room.ID + "?adminToken=" + room.AdminToken
 
 		start := 0
-		if len(room.ActivityLog) > adminLogBroadcastLimit {
+		if len(room.ActivityLog) > m.adminLogBroadcastLimit {
-			start = len(room.ActivityLog) - adminLogBroadcastLimit
+			start = len(room.ActivityLog) - m.adminLogBroadcastLimit
 		}
 		state.AdminLogs = make([]PublicActivityLogEntry, 0, len(room.ActivityLog)-start)
 		for _, item := range room.ActivityLog[start:] {
@@ -798,8 +832,8 @@ func (m *Manager) appendActivityLogLocked(room *Room, format string, args ...any
 		Message: fmt.Sprintf(format, args...),
 	})
 
-	if len(room.ActivityLog) > maxActivityLogEntries {
+	if len(room.ActivityLog) > m.maxActivityLogEntries {
-		room.ActivityLog = append([]ActivityLogEntry(nil), room.ActivityLog[len(room.ActivityLog)-maxActivityLogEntries:]...)
+		room.ActivityLog = append([]ActivityLogEntry(nil), room.ActivityLog[len(room.ActivityLog)-m.maxActivityLogEntries:]...)
 	}
 }