<?php

declare(strict_types=1);

namespace Esun\MultiLocaleTranslation\Plugin\Adminhtml;

use Esun\MultiLocaleTranslation\Model\CmsTranslationRepository;
use Magento\Cms\Model\Page\DataProvider;
use Magento\Framework\App\RequestInterface;

class CmsPageDataProvider
{
    private const FIELDSETS = [
        'title' => 'general',
        'content_heading' => 'content',
        'content' => 'content',
        'meta_title' => 'search_engine_optimisation',
        'meta_keywords' => 'search_engine_optimisation',
        'meta_description' => 'search_engine_optimisation',
    ];

    public function __construct(
        private readonly RequestInterface $request,
        private readonly CmsTranslationRepository $translationRepository
    ) {
    }

    public function afterGetData(DataProvider $subject, array $result): array
    {
        $pageId = (int)$this->request->getParam('page_id');
        $storeId = (int)$this->request->getParam('store');
        if ($pageId <= 0 || !isset($result[$pageId])) {
            return $result;
        }

        $result[$pageId]['translation_store_id'] = $storeId;
        if ($storeId <= 0) {
            return $result;
        }

        $translations = $this->getTranslations($pageId, $storeId);
        foreach (array_keys(self::FIELDSETS) as $field) {
            if (array_key_exists($field, $translations)) {
                $result[$pageId][$field] = $translations[$field];
            }
        }

        return $result;
    }

    public function afterGetMeta(DataProvider $subject, array $result): array
    {
        $pageId = (int)$this->request->getParam('page_id');
        $storeId = (int)$this->request->getParam('store');
        if ($pageId <= 0 || $storeId <= 0) {
            return $result;
        }

        $translations = $this->getTranslations($pageId, $storeId);
        foreach (self::FIELDSETS as $field => $fieldset) {
            $config = &$result[$fieldset]['children'][$field]['arguments']['data']['config'];
            $config['service'] = ['template' => 'ui/form/element/helper/service'];
            $config['disabled'] = !array_key_exists($field, $translations);
            unset($config);
        }

        return $result;
    }

    private function getTranslations(int $pageId, int $storeId): array
    {
        return $this->translationRepository->getTranslations(
            $pageId,
            $storeId,
            CmsTranslationRepository::ENTITY_PAGE,
            array_keys(self::FIELDSETS)
        );
    }
}