<?php

declare(strict_types=1);

/**
 * @author Amasty Team
 * @copyright Copyright (c) Amasty (https://www.amasty.com)
 * @package Page Speed Tools for Magento 2 (System)
 */

namespace Amasty\PageSpeedTools\Plugin;

use Amasty\PageSpeedTools\Model\Output\OutputChainInterface;
use Magento\Framework\App\ResponseInterface;
use Magento\Framework\Controller\ResultInterface;
use Magento\Framework\Event\ManagerInterface;

class ProcessPageResult
{
    public const EVENT_NAME = 'amasty_pagespeed_after_process_page_result';

    /**
     * @var OutputChainInterface
     */
    private $outputChain;

    /**
     * @var ManagerInterface
     */
    private $eventManager;

    public function __construct(
        OutputChainInterface $outputChain,
        ManagerInterface $eventManager
    ) {
        $this->outputChain = $outputChain;
        $this->eventManager = $eventManager;
    }

    /**
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     */
    public function afterRenderResult(
        ResultInterface $subject,
        ResultInterface $result,
        ResponseInterface $response
    ): ResultInterface {
        $output = $response->getBody();
        if ($this->outputChain->process($output)) {
            $response->setBody($output);
        }

        $this->eventManager->dispatch(self::EVENT_NAME, ['response' => $response]);

        return $result;
    }
}