Prose\FromHost::getAppSettings PHP Method

    public function getAppSettings($appName)
    {
        // what are we doing?
        $log = usingLog()->startAction("get settings for '{$appName}' from host '{$this->args[0]}'");
        // make sure we have valid host details
        $hostDetails = $this->getHostDetails();
        // do we have any app settings?
        if (!isset($hostDetails->appSettings, $hostDetails->appSettings->{$appName})) {
            $log->endAction("setting does not exist :(");
            throw new E5xx_ActionFailed(__METHOD__);
        }
        // yes we do
        $value = $hostDetails->appSettings->{$appName};
        // log the settings
        $printer = new DataPrinter();
        $logValue = $printer->convertToString($value);
        $log->endAction("settings for '{$appName}' are '{$logValue}'");
        // all done
        return $value;
    }