<?php

namespace App\Element\UseCases\UpdateElement;

use App\Element\Element;
use App\Element\ElementRepository;
use App\Exceptions\BadRequestException;
use App\Exceptions\NotFoundException;

class UpdateDescription
{
    public function __construct(private ElementRepository $elementRepository)
    {
    }

    /**
     * @throws BadRequestException
     * @throws NotFoundException
     */
    public function execute(UpdateDescriptionRequest $request): Element
    {
        if ($request->id === null) {
            throw new BadRequestException('id is required');
        }

        if ($request->description === null) {
            throw new BadRequestException('description is required');
        }

        $element = $this->elementRepository->find($request->id);
        if ($element === null) {
            throw new NotFoundException('Element not found');
        }

        $element->setDescription($request->description);

        return $this->elementRepository->update($element);
    }
}