<?php

namespace External\CykloSpecialityBundle\Util;

use KupShop\CatalogBundle\ProductList\ProductCollection;
use KupShop\KupShopBundle\Util\DateUtil;
use KupShop\StoresBundle\Utils\StoresInStore;
use Symfony\Contracts\Service\Attribute\Required;

class DeliveryInfo extends \KupShop\OrderingBundle\Util\Order\DeliveryInfo
{
    private const DEFAULT_DELIVERY_TIME = 0;

    #[Required]
    public StoresInStore $storesInStore;

    protected function calculateCollectionDate(ProductCollection $productList, \Delivery $delivery, array &$cache): ?\DateTime
    {
        if ($delivery->isInPerson()) {
            return parent::calculateCollectionDate($productList, $delivery, $cache);
        }

        $deliveryTime = 0;
        foreach ($productList as $product) {
            $productDeliveryTime = $this->getProductDeliveryTime($product);
            $deliveryTime = max($deliveryTime, $productDeliveryTime);
        }

        return DateUtil::calcWorkingDays($deliveryTime);
    }

    private function getProductDeliveryTime(\Product $product): int
    {
        $piecesOrdered = $product['piecesOrdered'] ?? 1;

        // nactu sklady ktere maji pozadovane mnozstvi skladem
        $stores = $this->storesInStore->getProductInStores($product->id, $product->variationId ?? null);
        $storesWithSufficientStock = array_filter($stores, fn ($x) => $x >= $piecesOrdered);

        // nactu data fyzickejch skladu
        $relevantStoresData = array_filter(
            array_intersect_key($this->storesInStore->getStores(), $storesWithSufficientStock),
            fn ($x) => $x['type'] === 0
        );

        // vyberu nejnizsi deliveryTime
        $deliveryTimes = array_map(function ($storeData) {
            return empty($storeData['data']['deliveryTime']) ? self::DEFAULT_DELIVERY_TIME : $storeData['data']['deliveryTime'];
        }, $relevantStoresData);

        if (empty($deliveryTimes)) {
            return 0;
        }

        return min($deliveryTimes);
    }
}