File Server/Validation/OpisSchemaValidator.php

1:	<?php
2:
3:	declare(strict_types=1);
4:
5:	/**
6:	* This file is part of the Nexus MCP SDK package.
7:	*
8:	* (c) 2026 John Paul E. Balandan, CPA <paulbalandan@gmail.com>
9:	*
10:	* For the full copyright and license information, please view
11:	* the LICENSE file that was distributed with this source code.
12:	*/
13:
14:	namespace Nexus\Mcp\Server\Validation;
15:
16:	use Opis\JsonSchema\Errors\ErrorFormatter;
17:	use Opis\JsonSchema\Helper;
18:	use Opis\JsonSchema\Validator;
19:
20:	/**
21:	* Default `SchemaValidatorInterface` backed by opis/json-schema.
22:	*/
23:	final readonly class OpisSchemaValidator implements SchemaValidatorInterface
24:	{
25:	private Validator $validator;
26:
27:	public function __construct()
28:	{
29:	$this->validator = new Validator();
30:	}
31:
32:	#[\Override]
33:	public function validate(mixed $data, array $schema): array
34:	{
35:	$error = $this->validator->validate(Helper::toJSON($data), (object) Helper::toJSON($schema))->error();
36:
37:	if (null === $error) {
38:	return [];
39:	}
40:
41:	/** @var list<string> $messages */
42:	$messages = new ErrorFormatter()->formatFlat($error);
43:
44:	return $messages;
45:	}
46:	}
47: