selectProxy method

Implementation

@override
Proxy selectProxy(List<Proxy> proxies) {
  if (proxies.isEmpty) {
    throw Exception('No proxies available');
  }

  // Update the proxy list if it has changed
  if (_proxies.isEmpty || _proxies.length != proxies.length) {
    updateProxies(proxies);
  }

  // Apply time-based weight decay
  _applyWeightDecay();

  // Decide whether to explore or exploit
  if (_random.nextDouble() < explorationRate) {
    // Exploration: select a random proxy
    final index = _random.nextInt(proxies.length);
    _lastIndex = index;
    final proxy = proxies[index];

    // Record the time of use
    _lastUsed[_getProxyKey(proxy)] = DateTime.now().millisecondsSinceEpoch;

    return proxy;
  } else {
    // Exploitation: select the best proxy based on weights
    return _selectBestProxy(proxies);
  }
}