File Core/Schema/Result/ReadResourceResult.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\Core\Schema\Result;
15:
16:	use Nexus\Assert\Assert;
17:	use Nexus\Mcp\Core\JsonRpc\ResourceContentsDispatcher;
18:	use Nexus\Mcp\Core\Schema\MetaObject;
19:	use Nexus\Mcp\Core\Schema\Resource\BlobResourceContents;
20:	use Nexus\Mcp\Core\Schema\Resource\ResourceContents;
21:	use Nexus\Mcp\Core\Schema\Resource\TextResourceContents;
22:	use Nexus\Mcp\Core\Schema\Result;
23:
24:	/**
25:	* The server's response to a resources/read request from the client.
26:	*
27:	* @see https://modelcontextprotocol.io/specification/2025-11-25/schema#readresourceresult
28:	*/
29:	final readonly class ReadResourceResult extends Result implements ServerResult
30:	{
31:	/**
32:	* @var list<BlobResourceContents\|TextResourceContents>
33:	*/
34:	public array $contents;
35:
36:	/**
37:	* @param list<BlobResourceContents\|TextResourceContents> $contents
38:	*/
39:	public function __construct(array $contents, MetaObject $meta = new MetaObject())
40:	{
41:	Assert::that($contents)
42:	->isList('"result.contents" must be a list, non-list array given.')
43:	->values()->isInstanceOf(ResourceContents::class)
44:	;
45:
46:	$this->contents = $contents;
47:
48:	parent::__construct($meta);
49:	}
50:
51:	/**
52:	* @param array<string, mixed> $data
53:	*/
54:	#[\Override]
55:	public static function fromArray(array $data): static
56:	{
57:	Assert::that($data)->hasOffset('contents', '"result" missing the required "contents" key.');
58:	Assert::that($data['contents'])
59:	->isList('"result.contents" must be a list, {type} given.')
60:	->values()
61:	->isArray('each "result.contents" must be an object, {type} given.')
62:	->isMap('each "result.contents" must be a string-keyed object.')
63:	;
64:	$contents = array_map(
65:	static fn(array $entry): BlobResourceContents\|TextResourceContents => ResourceContentsDispatcher::fromArray($entry, 'ReadResourceResult contents'),
66:	$data['contents'],
67:	);
68:
69:	$meta = new MetaObject();
70:
71:	if (\array_key_exists('_meta', $data)) {
72:	Assert::that($data['_meta'])
73:	->isArray('"result._meta" must be an object, {type} given.')
74:	->isMap('"result._meta" must be a string-keyed object.')
75:	;
76:	$meta = MetaObject::fromArray($data['_meta']);
77:	}
78:
79:	return new self($contents, $meta);
80:	}
81:
82:	#[\Override]
83:	public function toArray(): array
84:	{
85:	return [
86:	...parent::toArray(),
87:	'contents' => array_map(static fn(ResourceContents $entry): array => $entry->toArray(), $this->contents),
88:	];
89:	}
90:
91:	#[\Override]
92:	public function jsonSerialize(): array
93:	{
94:	return $this->toArray();
95:	}
96:	}
97:

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