getCachedData<T> static method

T? getCachedData<T>(String key)

Retrieve cached data

Implementation

static T? getCachedData<T>(String key) {
  _ensureInitialized();

  final cachedString = _prefs!.getString(key);
  if (cachedString == null) return null;

  try {
    final cacheItem = jsonDecode(cachedString);
    final timestamp = cacheItem['timestamp'] as int;
    final ttl = cacheItem['ttl'] as int?;

    // Check if cache has expired
    if (ttl != null) {
      final now = DateTime.now().millisecondsSinceEpoch;
      if (now - timestamp > ttl) {
        // Cache expired, remove it
        removeCachedData(key);
        return null;
      }
    }

    return cacheItem['data'] as T?;
  } catch (e) {
    // If there's an error parsing, remove the corrupted cache
    removeCachedData(key);
    return null;
  }
}