public function __construct()
{
$this->config = Mage::helper('algoliasearch/config');
$this->resetCredentialsFromConfig();
$version = $this->config->getExtensionVersion();
\AlgoliaSearch\Version::addPrefixUserAgentSegment('Magento integration', $version);
\AlgoliaSearch\Version::addSuffixUserAgentSegment('PHP', phpversion());
\AlgoliaSearch\Version::addSuffixUserAgentSegment('Magento', Mage::getVersion());
}