File Core/Schema/ContentBlock/AudioContent.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\ContentBlock;
15:
16:	use Nexus\Assert\Assert;
17:	use Nexus\Mcp\Core\Schema\Annotations;
18:	use Nexus\Mcp\Core\Schema\Arrayable;
19:	use Nexus\Mcp\Core\Schema\ContentBlock;
20:	use Nexus\Mcp\Core\Schema\MetaObject;
21:
22:	/**
23:	* Audio provided to or from an LLM.
24:	*
25:	* @implements Arrayable<array{
26:	* data: non-empty-string,
27:	* mimeType: non-empty-string,
28:	* type: 'audio',
29:	* annotations?: template-type<Annotations, Arrayable, 'T'>,
30:	* _meta?: template-type<MetaObject, Arrayable, 'T'>,
31:	* }>
32:	*
33:	* @see https://modelcontextprotocol.io/specification/draft/schema#audiocontent
34:	*/
35:	final readonly class AudioContent implements Arrayable, ContentBlock
36:	{
37:	public const string TYPE = 'audio';
38:
39:	/**
40:	* @var non-empty-string
41:	*/
42:	public string $data;
43:
44:	/**
45:	* @var non-empty-string
46:	*/
47:	public string $mimeType;
48:
49:	public function __construct(
50:	string $data,
51:	string $mimeType,
52:	public Annotations $annotations = new Annotations(),
53:	public MetaObject $meta = new MetaObject(),
54:	) {
55:	Assert::that($data)->isNonEmptyString('audio content "data" must be a non-empty string.');
56:	Assert::that($mimeType)->isNonEmptyString('audio content "mimeType" must be a non-empty string.');
57:
58:	$this->data = $data;
59:	$this->mimeType = $mimeType;
60:	}
61:
62:	#[\Override]
63:	public static function fromArray(array $data): static
64:	{
65:	Assert::that($data)->hasOffset('type', 'audio content is missing the required "type" key.');
66:	$type = $data['type'];
67:	Assert::that($type)->isIdentical(self::TYPE, 'audio content "type" must be {other}, {value} given.');
68:
69:	Assert::that($data)->hasOffset('data', 'audio content is missing the required "data" key.');
70:	$payload = $data['data'];
71:	Assert::that($payload)->isString('audio content "data" must be a string, {type} given.');
72:
73:	Assert::that($data)->hasOffset('mimeType', 'audio content is missing the required "mimeType" key.');
74:	$mimeType = $data['mimeType'];
75:	Assert::that($mimeType)->isString('audio content "mimeType" must be a string, {type} given.');
76:
77:	$annotations = new Annotations();
78:
79:	if (\array_key_exists('annotations', $data)) {
80:	Assert::that($data['annotations'])
81:	->isArray('audio content "annotations" must be an object, {type} given.')
82:	->isMap('audio content "annotations" must be a string-keyed object.')
83:	;
84:	$annotations = Annotations::fromArray($data['annotations']);
85:	}
86:
87:	$meta = new MetaObject();
88:
89:	if (\array_key_exists('_meta', $data)) {
90:	Assert::that($data['_meta'])
91:	->isArray('audio content "_meta" must be an object, {type} given.')
92:	->isMap('audio content "_meta" must be a string-keyed object.')
93:	;
94:	$meta = MetaObject::fromArray($data['_meta']);
95:	}
96:
97:	return new self(data: $payload, mimeType: $mimeType, annotations: $annotations, meta: $meta);
98:	}
99:
100:	#[\Override]
101:	public function toArray(): array
102:	{
103:	$data = [
104:	'data' => $this->data,
105:	'mimeType' => $this->mimeType,
106:	'type' => self::TYPE,
107:	];
108:
109:	$annotations = $this->annotations->toArray();
110:
111:	if ([] !== $annotations) {
112:	$data['annotations'] = $annotations;
113:	}
114:
115:	$meta = $this->meta->toArray();
116:
117:	if ([] !== $meta) {
118:	$data['_meta'] = $meta;
119:	}
120:
121:	return $data;
122:	}
123:
124:	#[\Override]
125:	public function jsonSerialize(): array
126:	{
127:	return $this->toArray();
128:	}
129:	}
130:

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