File Core/Schema/Resource/TextResourceContents.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\Resource;
15:
16:	use Nexus\Assert\Assert;
17:	use Nexus\Mcp\Core\Schema\Arrayable;
18:	use Nexus\Mcp\Core\Schema\MetaObject;
19:
20:	/**
21:	* Text-encoded resource contents. The `text` payload is set only when the
22:	* resource can actually be represented as text (not binary data).
23:	*
24:	* @extends ResourceContents<array{
25:	* uri: non-empty-string,
26:	* text: string,
27:	* mimeType?: non-empty-string,
28:	* _meta?: template-type<MetaObject, Arrayable, 'T'>,
29:	* }>
30:	*
31:	* @see https://modelcontextprotocol.io/specification/draft/schema#textresourcecontents
32:	*/
33:	final readonly class TextResourceContents extends ResourceContents
34:	{
35:	public function __construct(
36:	string $uri,
37:	public string $text,
38:	?string $mimeType = null,
39:	MetaObject $meta = new MetaObject(),
40:	) {
41:	parent::__construct(uri: $uri, mimeType: $mimeType, meta: $meta);
42:	}
43:
44:	#[\Override]
45:	public static function fromArray(array $data): static
46:	{
47:	Assert::that($data)->hasOffset('uri', 'text resource contents is missing the required "uri" key.');
48:	$uri = $data['uri'];
49:	Assert::that($uri)->isString('text resource contents "uri" must be a string, {type} given.');
50:
51:	Assert::that($data)->hasOffset('text', 'text resource contents is missing the required "text" key.');
52:	$text = $data['text'];
53:	Assert::that($text)->isString('text resource contents "text" must be a string, {type} given.');
54:
55:	$mimeType = $data['mimeType'] ?? null;
56:	Assert::that($mimeType)->nullOr()->isString('text resource contents "mimeType" must be a string or null, {type} given.');
57:
58:	$meta = new MetaObject();
59:
60:	if (\array_key_exists('_meta', $data)) {
61:	Assert::that($data['_meta'])
62:	->isArray('text resource contents "_meta" must be an object, {type} given.')
63:	->isMap('text resource contents "_meta" must be a string-keyed object.')
64:	;
65:	$meta = MetaObject::fromArray($data['_meta']);
66:	}
67:
68:	return new self(uri: $uri, text: $text, mimeType: $mimeType, meta: $meta);
69:	}
70:
71:	#[\Override]
72:	public function toArray(): array
73:	{
74:	$data = [
75:	'uri' => $this->uri,
76:	'text' => $this->text,
77:	];
78:
79:	if (null !== $this->mimeType) {
80:	$data['mimeType'] = $this->mimeType;
81:	}
82:
83:	$meta = $this->meta->toArray();
84:
85:	if ([] !== $meta) {
86:	$data['_meta'] = $meta;
87:	}
88:
89:	return $data;
90:	}
91:	}
92:

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