<?php

namespace KupShop\RecommendersBundle\Util;

use KupShop\CatalogBundle\ProductList\ProductCollection;
use KupShop\ComponentsBundle\Twig\DataProvider\ProductDataProvider;
use KupShop\LuigisBoxBundle\Recommenders\LuigisBoxRecommender;
use KupShop\RecommendersBundle\Recommenders\RecommendersLocator;
use KupShop\RecommendersBundle\Translations\RecommendersTranslation;
use Query\Operator;
use Query\Translation;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Twig\Environment;

class RecommendersUtil
{
    public function __construct(
        protected RecommendersLocator $recommendersLocator,
        protected ?ProductDataProvider $productDataProvider,
        protected Environment $twig,
    ) {
    }

    public function getRecommenderByLabel(string $label)
    {
        return sqlQueryBuilder()->select('re.*')->from('recommenders', 're')
                ->where(Operator::equals(['label' => $label]))
                ->andWhere(Translation::coalesceTranslatedFields(RecommendersTranslation::class))
                ->execute()->fetchAssociative();
    }

    public function getRecommendersProducts(array &$data): ProductCollection
    {
        if (empty($data['label'])) {
            throw new NotFoundHttpException('Empty label');
        }

        $labelRecommender = $this->getRecommenderByLabel($data['label']);
        if ($type = $labelRecommender['type'] ?? null) {
            $recommender = $this->recommendersLocator->getRecommender($type);
            $config = $recommender->getConfigurationVariables($labelRecommender);

            $productList = $recommender->execute($data['data'] ?? [], $config);
            if (findModule(\Modules::COMPONENTS)) {
                $this->productDataProvider->addProducts($productList->toArray());
            }
            if ($recommender instanceof LuigisBoxRecommender) {
                $data['luigisbox'] = $recommender->getLogData();
            }

            return $productList;
        } else {
            throw new NotFoundHttpException("Recommender doesn't exist");
        }
    }

    public function renderRecommendersProducts(array $data): string
    {
        $recommender = $this->getRecommenderByLabel($data['label']);
        try {
            $productList = $this->getRecommendersProducts($data);
        } catch (\Throwable $e) {
            if (getAdminUser()) {
                // show error to admin
                return "Recommender \"{$data['label']}\" error: ".$e->getMessage();
            }

            return '';
        }

        if (findModule(\Modules::COMPONENTS)) {
            return $this->twig->createTemplate('{{ component(name, data) }}')
                ->render([
                    'name' => 'ProductList',
                    'data' => [
                        'productList' => $productList,
                        'list_show' => $data['list_show'],
                    ],
                ]);
        }

        $smarty = createSmarty(false, true);
        $smarty->assign($data['data'] ?? '');
        $smarty->assign('products', $productList);
        $smarty->assign('recommender', $recommender);
        if (isset($data['luigisbox'])) {
            $smarty->assign('luigisbox', $data['luigisbox']);
            $smarty->assign('lbx_recommender', $data['luigisbox']['response'][0]['recommender'] ?? null);
        }

        return $smarty->fetch($data['template'] ?? 'block.products.recommender.tpl');
    }
}