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:	use Nexus\Mcp\Core\Schema\Sampling\SamplingMessageContentBlock;
22:
23:	/**
24:	* Audio provided to or from an LLM.
25:	*
26:	* @implements Arrayable<array{
27:	* data: non-empty-string,
28:	* mimeType: non-empty-string,
29:	* type: 'audio',
30:	* annotations?: template-type<Annotations, Arrayable, 'T'>,
31:	* _meta?: template-type<MetaObject, Arrayable, 'T'>,
32:	* }>
33:	*
34:	* @see https://modelcontextprotocol.io/specification/2025-11-25/schema#audiocontent
35:	*/
36:	final readonly class AudioContent implements Arrayable, ContentBlock, SamplingMessageContentBlock
37:	{
38:	public const string TYPE = 'audio';
39:
40:	/**
41:	* @var non-empty-string
42:	*/
43:	public string $data;
44:
45:	/**
46:	* @var non-empty-string
47:	*/
48:	public string $mimeType;
49:
50:	public function __construct(
51:	string $data,
52:	string $mimeType,
53:	public Annotations $annotations = new Annotations(),
54:	public MetaObject $meta = new MetaObject(),
55:	) {
56:	Assert::that($data)->isNonEmptyString('audio content "data" must be a non-empty string.');
57:	Assert::that($mimeType)->isNonEmptyString('audio content "mimeType" must be a non-empty string.');
58:
59:	$this->data = $data;
60:	$this->mimeType = $mimeType;
61:	}
62:
63:	/**
64:	* @param array<string, mixed> $data
65:	*/
66:	#[\Override]
67:	public static function fromArray(array $data): static
68:	{
69:	Assert::that($data)->hasOffset('type', 'audio content missing the required "type" key.');
70:	$type = $data['type'];
71:	Assert::that($type)->isIdentical(self::TYPE, 'audio content "type" must be {other}, {value} given.');
72:
73:	Assert::that($data)->hasOffset('data', 'audio content missing the required "data" key.');
74:	$payload = $data['data'];
75:	Assert::that($payload)->isString('audio content "data" must be a string, {type} given.');
76:
77:	Assert::that($data)->hasOffset('mimeType', 'audio content missing the required "mimeType" key.');
78:	$mimeType = $data['mimeType'];
79:	Assert::that($mimeType)->isString('audio content "mimeType" must be a string, {type} given.');
80:
81:	$annotations = new Annotations();
82:
83:	if (\array_key_exists('annotations', $data)) {
84:	Assert::that($data['annotations'])
85:	->isArray('audio content "annotations" must be an object, {type} given.')
86:	->isMap('audio content "annotations" must be a string-keyed object.')
87:	;
88:	$annotations = Annotations::fromArray($data['annotations']);
89:	}
90:
91:	$meta = new MetaObject();
92:
93:	if (\array_key_exists('_meta', $data)) {
94:	Assert::that($data['_meta'])
95:	->isArray('audio content "_meta" must be an object, {type} given.')
96:	->isMap('audio content "_meta" must be a string-keyed object.')
97:	;
98:	$meta = MetaObject::fromArray($data['_meta']);
99:	}
100:
101:	return new self($payload, $mimeType, $annotations, $meta);
102:	}
103:
104:	#[\Override]
105:	public function toArray(): array
106:	{
107:	$data = [
108:	'data' => $this->data,
109:	'mimeType' => $this->mimeType,
110:	'type' => self::TYPE,
111:	];
112:
113:	$annotations = $this->annotations->toArray();
114:
115:	if ([] !== $annotations) {
116:	$data['annotations'] = $annotations;
117:	}
118:
119:	$meta = $this->meta->toArray();
120:
121:	if ([] !== $meta) {
122:	$data['_meta'] = $meta;
123:	}
124:
125:	return $data;
126:	}
127:
128:	#[\Override]
129:	public function jsonSerialize(): array
130:	{
131:	return $this->toArray();
132:	}
133:	}
134:

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