Function syncActivePreviewThread

apps/web/src/previewStateStore.ts:83–92

(threadKey: string, state: ThreadPreviewState)

const changedPreviewThreadKeys = new Set<string>();

function syncActivePreviewThread(threadKey: string, state: ThreadPreviewState): void {
  const active = Object.keys(state.sessions).length > 0;
  appAtomRegistry.update(activePreviewThreadKeysAtom, (current) => {
    if (current.keys.has(threadKey) === active) return current;
    const next = new Set(current.keys);
    if (active) next.add(threadKey);
    else next.delete(threadKey);
    return { keys: next };
  });
}

function updateThreadPreviewState(
  ref: ScopedThreadRef,