mivita/app/Services/ProductOrderContext.php

<?php

namespace App\Services;

use App\Models\Product;

class ProductOrderContext
{
    /**
     * @return list<string>
     */
    public static function allowedShowOnIds(bool $isAbo, string $shippingIsFor): array
    {
        if ($shippingIsFor === 'me' || $shippingIsFor === 'abo-me') {
            return $isAbo ? ['12', '13'] : ['2'];
        }

        return $isAbo ? ['12', '13'] : ['3'];
    }

    /**
     * Sortiment für Einmalprodukte (Abo-Zusatzartikel, nur nächste/erste Lieferung):
     * normales Bestellsortiment – identisch zum Einmalprodukte-Feature laufender Abos.
     *
     * @return list<string>
     */
    public static function oneTimeShowOnIds(): array
    {
        return ['3'];
    }

    /**
     * @param  list<string>  $allowedIds
     */
    public static function productMatchesShowOn(Product $product, array $allowedIds): bool
    {
        $showOn = $product->show_on;
        if (! is_array($showOn)) {
            return false;
        }

        foreach ($allowedIds as $id) {
            foreach ($showOn as $value) {
                if ((string) $value === (string) $id) {
                    return true;
                }
            }
        }

        return false;
    }

    public static function isProductAllowedInContext(Product $product, bool $isAbo, string $shippingIsFor): bool
    {
        return self::productMatchesShowOn($product, self::allowedShowOnIds($isAbo, $shippingIsFor));
    }

    public static function isProductAllowedInCustomerWebshop(Product $product): bool
    {
        return self::isProductAllowedInContext($product, false, 'ot-customer');
    }
}