getNextProxy method

Implementation

@override
Proxy? getNextProxy() {
  if (_proxies.isEmpty || _countryCodes.isEmpty) {
    return null;
  }

  // Get the current country code
  final countryCode = _countryCodes[_currentCountryIndex];

  // Get the proxies for the current country
  final countryProxies = _proxiesByCountry[countryCode] ?? [];
  if (countryProxies.isEmpty) {
    // Move to the next country
    _currentCountryIndex = (_currentCountryIndex + 1) % _countryCodes.length;
    _currentProxyIndex = 0;
    return getNextProxy();
  }

  // Get the current proxy
  final proxy = countryProxies[_currentProxyIndex];

  // Move to the next proxy in the current country
  _currentProxyIndex = (_currentProxyIndex + 1) % countryProxies.length;

  // If we've gone through all proxies in the current country, move to the next country
  if (_currentProxyIndex == 0) {
    _currentCountryIndex = (_currentCountryIndex + 1) % _countryCodes.length;
  }

  return proxy;
}