Concrete CMS: A helper class to install CIF format xml files without duplicated run

Updater.php

<?php

namespace Acme\Updater;

use Concrete\Core\Entity\Package as PackageEntity;
use Concrete\Core\Package\Package;
use Symfony\Component\Finder\Finder;

class Updater
{
    private Package $controller;

    public function __construct(PackageEntity $package)
    {
        $this->controller = $package->getController();
    }

    public function update(): void
    {
        $files = $this->getXmlFiles();
        $installed = $this->getRecentInstalledXmlFile();
        foreach ($files as $file) {
            if ($installed) {
                if ($file > $installed) {
                    $this->controller->installContentFile('update/' . $file);
                    $this->saveRecentInstalledXmlFile($file);
                }
            }
        }
    }

    public function getXmlFiles(): \Generator
    {
        $finder = new Finder();
        $finder->files()->name('*.xml')->in($this->controller->getPackagePath() . '/update')->sortByName();
        foreach ($finder as $file) {
            yield $file->getFilename();
        }
    }

    public function getRecentInstalledXmlFile()
    {
        return $this->controller->getFileConfig()->get('update.xml_installed', '20000000000000');
    }

    public function saveRecentInstalledXmlFile(string $filename): void
    {
        $this->controller->getFileConfig()->save('update.xml_installed', $filename);
    }
}