import { useState, useCallback } from 'react'; const KEY = 'default_collapse_sidebar'; export const useSidebarCollapsed = () => { const [collapsed, setCollapsed] = useState(() => localStorage.getItem(KEY) === 'true'); const toggle = useCallback(() => { setCollapsed(prev => { const next = !prev; localStorage.setItem(KEY, next.toString()); return next; }); }, []); const set = useCallback((value) => { setCollapsed(value); localStorage.setItem(KEY, value.toString()); }, []); return [collapsed, toggle, set]; };