ZoomX plugin for assets manifest

AssetsManifest.php

<?php

namespace App\Plugins;

class AssetsManifest extends \Zoomx\Elements\Plugin
{
    public static $events = [
        'OnZoomxInit' => 0,
    ];

    public $disabled = false;

    public function OnZoomxInit(): void
    {
        $assets_version = $this->modx->getOption('assets_version', null, 'v1', true);
        $manifest_path = "assets/" . $assets_version . "/assets.json";
        $development = $this->modx->getOption('development', null, false, true);
        $development_path = $this->modx->getOption('server_protocol')
            . '://'
            . $this->modx->getOption('http_host')
            . ':'
            . (getenv('DEVELOPMENT_PORT', true) ?: '3000')
            . '/';

        if (file_exists($manifest_path)) {
            try {
                $manifest_array = json_decode(
                    file_get_contents($manifest_path),
                    true,
                    512,
                    JSON_THROW_ON_ERROR
                );
            } catch (\JsonException $e) {
                $this->modx->log(1, 'Unable to parse manifest with assets');
                $this->modx->log(1, $e);
            }
            if (isset($manifest_array)) {
                $this->modx->setPlaceholder('manifest', $manifest_array);
            }
        }

        $this->modx->setPlaceholder('development_path', $development_path);

        if ($development) {
            $this->modx->regClientHTMLBlock(
                '<script type="module" src="' . $development_path . '@vite/client' . '"></script>'
            );
        }
    }
}