// UDT feuShowMenu written by Nockenfell 12.2010

// Funktionen

if(!function_exists('btGetFeuGroups')) {
    function btGetFeuGroups() { 
        $feusers = cms_utils::get_module('FrontEndUsers');
    $user_id = $feusers->LoggedInId();
    
        // Alle Gruppen einlesen zu welchen der eingeloggte Benutzer gehört
        $groups = $feusers->GetMemberGroupsArray($user_id);

        $gns = array();
        if($groups !== false ) {
            foreach( $groups as $gid ) {
                $gns[] = $gid['groupid'];
            }
        }
        return $gns;
    }
}

if(!function_exists('btGetFeuAccess')) {
    function btGetFeuAccess($id) {
        $gns = btGetFeuGroups();
        $btFeuAccess = cms_utils::get_app_data('btFeuAccess');
        $feuAccess = $btFeuAccess[$id];
        if ($feuAccess != "" and $feuAccess != -1) {
            // Prüfen der Berechtigung
            $feuArray= explode(';',$feuAccess);
            $retval = false;
            foreach ($feuArray as $feu) {
                if (in_array($feu,$gns)) $retval = true;
            }
            return $retval;
        }
        return true;
    }
}

if(!function_exists('btMenuHasChildren')) {
    function btMenuHasChildren($currentnode,$nodelist) {
        // Children suchen
        foreach ($nodelist as $node) {
            if ($node->depth == $currentnode->depth+1 and $currentnode->hierarchy == substr($node->hierarchy,0,strlen($currentnode->hierarchy))) {
                return true;
            }
        }
        return false;
    }
}

if(!function_exists('btMenuHasParent')) {
    function btMenuHasParent($currentnode,$nodelist) {
        // Parent suchen
        foreach ($nodelist as $node) {$pos = strpos($meinString, $findMich);
            if ($node->depth == $currentnode->depth-1 and strpos($currentnode->hierarchy, $node->hierarchy) !== FALSE) {
                return true;
            }
        }
        return false;
    }
}

if (!isset($params['nodelist'])) {
    echo "UDT-feuShowMenu - Nodeliste des Menüs fehlt!";
    return;
}

// Seiten mit feu_access Eintrag auslesen

$sql = "select content_id, prop_name, content from ".cms_db_prefix()."content_props where prop_name = 'feu_access'";
$db = &cmsms()->GetDb();
$dbresult = $db->Execute($sql);
$btFeuAccess = Array();
while ($dbresult && $row = $dbresult->FetchRow())
        $btFeuAccess[$row['content_id']] = $row['content'];
cms_utils::set_app_data('btFeuAccess',$btFeuAccess);

$nodelist = $params['nodelist'];

// Schreiben welche Seiten sichtbar sind
$modnodelist = array();
foreach($nodelist as $node) {
    $node->hasAccess = btGetFeuAccess($node->id);
    $modnodelist[] = $node;
}

// geschütze Seiten aus dem Array löschen
foreach ($modnodelist as $key=>$node) {
    // geschütze Seiten löschen
    if ($node->hasAccess == false or $node->hasAccess == "") {
        if (false !== ($key = array_search($node,$modnodelist))) {
            unset($modnodelist[$key]);
        }
    }
}

// nicht mehr referenzierte Seiten aus dem Array löschen
foreach ($modnodelist as $key=>$node) {
    // interne Links zu geschütze Seiten löschen
    if ($node->type == "pagelink") {
        foreach ($nodelist as $plnode) {
            if ($plnode->url == $node->url and $plnode->id != $node->id) {
                if (!btGetFeuAccess($plnode->id)) {
                    if (false !== ($key = array_search($node,$modnodelist))) {
                        unset($modnodelist[$key]);
                    }
                }
            }
        }
    }
    // Sectionheader ohne Children löschen
    else if ($node->type == "sectionheader") {
        if (!btMenuHasChildren($node,$modnodelist)){
            if (false !== ($key = array_search($node,$modnodelist))) {
                unset($modnodelist[$key]);
            }
        }
    }
    // Childern ohne Parent löschen
    else if ($node->depth > 1) {
        if (!btMenuHasParent($node,$modnodelist)){
            if (false !== ($key = array_search($node,$modnodelist))) {
                unset($modnodelist[$key]);
            }
        }
    }
}

// $node->prevdepth und $node->haschildren neu setzen
$prevdepth = 1;
foreach ($modnodelist as $node) {
    $node->prevdepth = $prevdepth;
    $prevdepth = $node->depth;
    $node->haschildren = btMenuHasChildren($node,$modnodelist);
}

// Nummerierung Array zurücksetzen
$modnodelist = array_values($modnodelist);


// Assign des Rückgabewertes
if(isset($params['assign'])) 
    $smarty->assign(trim($params['assign']), $modnodelist );
else
    return $modnodelist;

71: $sql = "select content_id, prop_name, content from ".cms_db_prefix()."content_props where prop_name = 'feu_access'";
72: $db = cmsms()->db;
73: $dbresult = $db->Execute($sql);

global $gCms;
...
$db =& $gCms->GetDB();