Add cleanup, minor fixes

backend/internal/rest/config.go

@@ -24,6 +24,11 @@ const (
 	DefaultShortSession = 24 * time.Hour
 	DefaultLongSession  = 30 * 24 * time.Hour
 	DefaultTokenSize    = 32
+
+	// DefaultCleanupInterval is how often expired sessions, spent/expired
+	// invites and never-activated users are purged in the background. A
+	// non-positive value disables the background cleanup.
+	DefaultCleanupInterval = 1 * time.Hour
 )
 
 type Config struct {
@@ -33,10 +38,14 @@ type Config struct {
 	// to build absolute links (e.g. the avatar URL embedded in Jitsi JWTs).
 	// Leave empty to fall back to the request's Host.
 	PublicBaseURL string
-	Jitsi         JitsiConfig
-	Cors          CorsConfig
-	Sessions      SessionConfig
-	Cookies       CookieConfig
+	// CleanupInterval controls the background maintenance loop that purges
+	// expired sessions, spent/expired invites and never-activated users.
+	// Non-positive disables it.
+	CleanupInterval time.Duration
+	Jitsi           JitsiConfig
+	Cors            CorsConfig
+	Sessions        SessionConfig
+	Cookies         CookieConfig
 }
 
 type JitsiConfig struct {
@@ -66,8 +75,9 @@ type CookieConfig struct {
 
 func DefaultConfig() Config {
 	return Config{
-		Addr:         DefaultAddr,
-		DatabasePath: DefaultDatabasePath,
+		Addr:            DefaultAddr,
+		DatabasePath:    DefaultDatabasePath,
+		CleanupInterval: DefaultCleanupInterval,
 		Jitsi: JitsiConfig{
 			Domain: "meet.jit.si",
 		},
@@ -133,6 +143,11 @@ func ConfigFromEnvironment() Config {
 			cfg.Sessions.LongDuration = parsed
 		}
 	}
+	if v := os.Getenv("CLEANUP_INTERVAL"); v != "" {
+		if parsed, err := time.ParseDuration(v); err == nil {
+			cfg.CleanupInterval = parsed
+		}
+	}
 
 	cfg.Jitsi.Secret = os.Getenv("JITSI_SECRET")
 	cfg.Jitsi.AppId = os.Getenv("JITSI_APP_ID")