<?php
declare(strict_types=1);

namespace Esun\CmsLayout\Observer;

use Magento\Framework\Event\Observer;
use Magento\Framework\Event\ObserverInterface;
use Magento\Framework\View\Page\Config as PageConfig;

class ApplyCustomFullWidthLayout implements ObserverInterface
{
    private const PAGE_LAYOUT = 'cms-custom-full-width';

    public function __construct(
        private readonly PageConfig $pageConfig
    ) {
    }

    public function execute(Observer $observer): void
    {
        if ($observer->getEvent()->getFullActionName() !== 'cms_page_view'
            || $this->pageConfig->getPageLayout() !== self::PAGE_LAYOUT
        ) {
            return;
        }

        $this->pageConfig->addBodyClass('cms-custom-full-width');
        $this->pageConfig->addPageAsset('Magento_Theme::css/cms-custom-common.css');
        $observer->getEvent()->getLayout()->unsetElement('breadcrumbs');
    }
}