세션 만료 관리 토글 동작을 실제 정책에 맞게 분리

devfront/src/lib/sessionSliding.ts

@@ -43,3 +43,34 @@ export function shouldAttemptSlidingSessionRenew({
 
   return true;
 }
+
+export function shouldAttemptUnlimitedSessionRenew({
+  expiresAtSec,
+  nowMs,
+  isEnabled,
+  isAuthenticated,
+  isLoading,
+  isRenewInFlight,
+  lastAttemptAtMs,
+  thresholdMs = SESSION_RENEW_THRESHOLD_MS,
+  throttleMs = SESSION_RENEW_THROTTLE_MS,
+}: SlidingSessionRenewDecisionParams) {
+  if (isEnabled || !isAuthenticated || isLoading || isRenewInFlight) {
+    return false;
+  }
+
+  if (typeof expiresAtSec !== "number") {
+    return false;
+  }
+
+  const remainingMs = expiresAtSec * 1000 - nowMs;
+  if (remainingMs <= 0 || remainingMs > thresholdMs) {
+    return false;
+  }
+
+  if (nowMs - lastAttemptAtMs < throttleMs) {
+    return false;
+  }
+
+  return true;
+}