.-.-.-.-.-

<?php
namespace verbb\navigation\nodetypes;

use verbb\navigation\base\NodeType;
use verbb\navigation\elements\Node;

use Craft;
use craft\models\Site;

class SiteType extends NodeType
{
    // Static Methods
    // =========================================================================

public static function displayName(): string
    {
        return Craft::t('navigation', 'Site');
    }

public static function hasTitle(): bool
    {
        return true;
    }

public static function hasUrl(): bool
    {
        return false;
    }

public static function hasNewWindow(): bool
    {
        return false;
    }

public static function getColor(): string
    {
        return '#737df8';
    }

// Public Methods
    // =========================================================================

public function getModalHtml(): ?string
    {
        return Craft::$app->getView()->renderTemplate('navigation/_types/site/modal', [
            'node' => $this->node,
        ]);
    }

public function getSettingsHtml(): ?string
    {
        return Craft::$app->getView()->renderTemplate('navigation/_types/site/settings');
    }

public function getDefaultTitle(): string
    {
        if ($site = $this->_getSite()) {
            if ($site->hasUrls) {
                return $site->name;
            }
        }

return parent::getDefaultTitle();
    }

public function getUrl(): ?string
    {
        if ($site = $this->_getSite()) {
            if ($site->hasUrls) {
                return rtrim($site->getBaseUrl(), '/');
            }
        }

return null;
    }

// Private Methods
    // =========================================================================

private function _getSite(): ?Site
    {
        $data = $this->node->data ?? [];

if ($data) {
            $siteId = $data['siteId'] ?? null;

if ($siteId && $site = Craft::$app->getSites()->getSiteById($siteId)) {
                return $site;
            }
        }

return null;
    }
}

/srv/users/craft4/apps/craft4-newsite-space/vendor/verbb/navigation/src/nodetypes/SiteType.php