<?php

namespace App\Comment\UseCases\DeleteComment;

use App\Comment\CommentRepository;
use App\Exceptions\BadRequestException;
use App\Exceptions\ForbiddenException;

class DeleteComment
{
    public function __construct(
        private CommentRepository $commentRepo,
    ) {}

    /**
     * @throws BadRequestException
     * @throws ForbiddenException
     */
    public function execute(DeleteCommentRequest $request): void
    {
        if ($request->commentId <= 0) {
            throw new BadRequestException('commentId must be positive');
        }
        if ($request->requesterId <= 0) {
            throw new BadRequestException('requesterId must be positive');
        }

        $comment = $this->commentRepo->find($request->commentId);
        if ($comment === null) {
            return;
        }

        $isAuthor = $comment->getUserId() === $request->requesterId;
        if (! $isAuthor && ! $request->requesterIsAdmin) {
            throw new ForbiddenException(
                'requester is not allowed to delete this comment'
            );
        }

        $this->commentRepo->delete($request->commentId);
    }
}