<?php

namespace App\Node;

use App\Node\NodeRepository;
use App\Text\TextRepository;
use Psr\Http\Message\ResponseInterface as Response;

class NodeController
{
    public function __construct(
        private NodeRepository $nodeRepository,
        private TextRepository $textRepository,
    ) {}

    public function getNodesOfText(Response $response, int $textId): Response
    {
        $text = $this->textRepository->find($textId);

        if ($text === null) {
            return $response->withStatus(404);
        }

        $nodes = $this->nodeRepository->findByTextId($textId);

        $data = array_map(function ($node) {
            return [
                'id' => $node->getId(),
                'title' => $node->getTitle(),
                'parentNodeId' => $node->getParentNode()?->getId(),
            ];
        }, $nodes);

        $response->getBody()->write(json_encode(array_values($data)));
        return $response->withHeader('Content-Type', 'application/json');
    }
}