<?php

declare(strict_types=1);

namespace Acme\Util\Collections;

use Acme\Util\Collections\SetCollection\SetCollection;
use Acme\Util\Collections\SetCollection\SetCollectionHelper;

final readonly class CollectionHelper
{
    /**
     * @template TCollection
     * @template TItem
     *
     * @param class-string<TCollection> $collectionType
     * @param class-string<TItem> $itemType
     * @param array<TItem>|TCollection<TItem>|TItem|null ...$items
     *
     * @return TCollection<TItem>
     */
    public static function reduce(string $collectionType, string $itemType, mixed ...$items): mixed
    {
        if ($collectionType === SetCollection::class) {
            return SetCollectionHelper::reduce($itemType, ...$items);
        }

        throw new \LogicException('Unknown type of collection.');
    }
}