/**
* The implementation of {@link lookupRequirements()}.
*
* @param Addon $addon The addon to lookup.
* @param array &$array The current requirements list.
* @see AddonManager::lookupRequirements()
*/
private function lookupRequirementsRecursive(Addon $addon, array &$array)
{
$addonReqs = $addon->getRequirements();
foreach ($addonReqs as $addonKey => $versionReq) {
$addonKey = strtolower($addonKey);
if (isset($array[$addonKey])) {
continue;
}
$addonReq = $this->lookupAddon($addonKey);
if (!$addonReq) {
$status = self::REQ_MISSING;
} elseif ($this->isEnabled($addonReq->getKey(), $addonReq->getType())) {
$status = self::REQ_ENABLED;
} elseif (Addon::checkVersion($addonReq->getVersion(), $versionReq)) {
$status = self::REQ_DISABLED;
} else {
$status = self::REQ_VERSION;
}
$array[$addonKey] = ['req' => $versionReq, 'status' => $status];
// Check the required addon's requirements.
if ($addonReq && $status !== self::REQ_ENABLED) {
$this->lookupRequirementsRecursive($addonReq, $array);
}
}
}