<?php

namespace App\Element\UseCases\UpdateElement;

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

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

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

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

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

        $element->setTitle(trim($request->title));

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