/**
* Returns active A/B-test
*
* @return array|null
*/
public static function getActiveTest()
{
static $abtest;
static $defined;
if (!defined('SITE_ID') || !SITE_ID) {
return null;
}
if (empty($defined)) {
$cache = new \CPHPCache();
if ($cache->initCache(30 * 24 * 3600, 'abtest_active_' . SITE_ID, '/abtest')) {
$abtest = $cache->getVars();
} else {
$abtest = ABTestTable::getList(array('order' => array('SORT' => 'ASC'), 'filter' => array('SITE_ID' => SITE_ID, 'ACTIVE' => 'Y', '<=START_DATE' => new Type\DateTime())))->fetch() ?: null;
$cache->startDataCache();
$cache->endDataCache($abtest);
}
$defined = true;
if (!empty($abtest)) {
if (!$abtest['MIN_AMOUNT']) {
$capacity = AdminHelper::getSiteCapacity($abtest['SITE_ID']);
if ($capacity['min'] > 0) {
$result = ABTestTable::update($abtest['ID'], array('MIN_AMOUNT' => $capacity['min']));
if ($result->isSuccess()) {
$cache->clean('abtest_active_' . SITE_ID, '/abtest');
$abtest['MIN_AMOUNT'] = $capacity['min'];
}
}
}
if (intval($abtest['DURATION']) == -1) {
if (intval($abtest['MIN_AMOUNT']) > 0) {
$capacity = AdminHelper::getTestCapacity($abtest['ID']);
if ($capacity['A'] >= $abtest['MIN_AMOUNT'] && $capacity['B'] >= $abtest['MIN_AMOUNT']) {
Helper::stopTest($abtest['ID'], true);
$abtest = null;
}
}
} else {
if (intval($abtest['DURATION']) > 0) {
$end = clone $abtest['START_DATE'];
$end->add(intval($abtest['DURATION']) . ' days');
if (time() > $end->format('U')) {
Helper::stopTest($abtest['ID'], true);
$abtest = null;
}
}
}
}
}
return $abtest;
}