get<T> method

@override Future<T?> get<T>(String key)

Retrieves a value from the cache by its identifier.

key - Unique identifier of the value

Returns the stored value or null if it doesn't exist or has expired

Implementation

@override
Future<T?> get<T>(String key) async {
  await _ensureInitialized();

  final metadata = _metadataCache[key];
  if (metadata == null) {
    _misses++;
    await _saveStats();
    return null;
  }

  // Check if expired
  if (metadata.isExpired) {
    await remove(key);
    _misses++;
    await _saveStats();
    return null;
  }

  // Get value from SharedPreferences
  final serializedValue = _prefs!.getString('$_keyPrefix$key');
  if (serializedValue == null) {
    // Inconsistent state, remove metadata
    await remove(key);
    _misses++;
    await _saveStats();
    return null;
  }

  // Deserialize value
  final value = _deserializeValue(serializedValue, metadata.dataType);

  // Update access information
  final now = DateTime.now();
  metadata.lastAccessedAt = now;
  metadata.accessCount++;

  // Update metadata in storage and cache
  await _prefs!.setString('$_metadataPrefix$key', metadata.toJson());

  _hits++;
  await _saveStats();
  return value as T?;
}