1// Cache-only (re-derivable data — sync results, project locale/count caching);
2// safe to change independently of store.ts's PREFIX, which persists actual
3// wallet session/account state and must not be touched casually.
4const STORAGE_KEY_PREFIX = '@the_library/web3-cache:';
5
6function isLocalStorageAvailable(): boolean {
7  if (typeof window === 'undefined' || typeof localStorage === 'undefined') {
8    return false;
9  }
10  try {
11    const testKey = '__storage_test__';
12    localStorage.setItem(testKey, 'test');
13    localStorage.removeItem(testKey);
14    return true;
15  } catch {
16    return false;
17  }
18}
19
20export function getItem<T = any>(key: string): T | null {
21  if (!isLocalStorageAvailable()) return null;
22  try {
23    const item = localStorage.getItem(STORAGE_KEY_PREFIX + key);
24    return item ? JSON.parse(item) : null;
25  } catch {
26    return null;
27  }
28}
29
30export function setItem<T = any>(key: string, value: T): void {
31  if (!isLocalStorageAvailable()) return;
32  try {
33    localStorage.setItem(STORAGE_KEY_PREFIX + key, JSON.stringify(value));
34  } catch (error) {
35    console.warn('[session/storage] Failed to save to localStorage:', error);
36  }
37}
38