<?php

/*
 * This file is developed by evoWeb.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 */

namespace Evoweb\EwBase\Hooks;

use Psr\Http\Message\ServerRequestInterface;
use TYPO3\CMS\Core\Core\Environment;
use TYPO3\CMS\Core\Site\Entity\Site;
use TYPO3\CMS\Core\Site\SiteFinder;

class UsercentricsPostRenderHook
{
    private array $siteArguments = [
        'id' => '',
        'version' => 'loader',
        'useBlocker' => false,
    ];

    protected ?Site $site = null;

    public function __construct(protected SiteFinder $siteFinder) {}

    public function executePostRenderHook(array $params): void
    {
        $pageUid = $this->getRequest()->getAttribute('frontend.controller')->page['uid'] ?? 0;
        if ($pageUid < 1) {
            return;
        }

        $siteArguments = $this->getCurrentSiteArguments($pageUid);
        $id = $siteArguments['id'] ?? '';
        if ($id !== '') {
            $extensionConfig = $this->getExtensionConfiguration($pageUid);

            $preload = [];
            $userCentrics = [];

            // CMP 1, 2, ...
            $version = $siteArguments['version'] ?? '';
            if ($config = $extensionConfig[$version] ?? false) {
                $preload[] = $config['preload'] ?? '';
                $userCentrics[] = $config['template'] ?? '';
            }

            // Blocker
            if (
                ($siteArguments['useBlocker'] ?? false)
                && $config = $extensionConfig['block'] ?? false
            ) {
                $preload[] = $config['preload'] ?? '';
                $userCentrics[] = $config['template'] ?? '';
            }

            $params['titleTag'] .= str_replace('###ID###', $id, implode(LF, array_merge($preload, $userCentrics)));
        }
    }

    protected function getCurrentSiteArguments(int $pageUid): array
    {
        $siteArguments = $this->siteArguments;

        $site = $this->getSiteByPageUid($pageUid);
        try {
            foreach ($site->getAttribute('usercentrics') as $usercentrics) {
                if (str_contains($usercentrics['applicationContext'] ?? '', (string)Environment::getContext())) {
                    $siteArguments = $usercentrics;
                    break;
                }
            }
        } catch (\Exception) {
            $siteArguments = [];
        }

        return is_array($siteArguments) ? $siteArguments : [];
    }

    protected function getExtensionConfiguration($pageUid): array
    {
        $siteSettings = $this->getSiteByPageUid($pageUid)->getSettings();
        $configuration = $siteSettings->has('ew-base') ? $siteSettings->get('ew-base') : [];
        return is_array($configuration['userCentrics'] ?? false) ? $configuration['userCentrics'] : [];
    }

    protected function getSiteByPageUid(int $pageUid): Site
    {
        if (!$this->site) {
            try {
                $this->site = $this->siteFinder->getSiteByPageId($pageUid);
            } catch (\Exception) {
            }
        }
        return $this->site;
    }

    protected function getRequest(): ServerRequestInterface
    {
        return $GLOBALS['TYPO3_REQUEST'];
    }
}