File Core/Schema/Elicitation/UntitledSingleSelectEnumSchema.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\Elicitation;
15:
16:	use Nexus\Assert\Assert;
17:
18:	/**
19:	* Schema for single-selection enumeration without display titles for options.
20:	*
21:	* @implements SingleSelectEnumSchema<array{
22:	* type: 'string',
23:	* enum: list<non-empty-string>,
24:	* title?: non-empty-string,
25:	* description?: non-empty-string,
26:	* default?: string,
27:	* }>
28:	*
29:	* @see https://modelcontextprotocol.io/specification/draft/schema#untitledsingleselectenumschema
30:	*/
31:	final readonly class UntitledSingleSelectEnumSchema implements SingleSelectEnumSchema
32:	{
33:	public const string TYPE = 'string';
34:
35:	/**
36:	* @var list<non-empty-string>
37:	*/
38:	public array $enum;
39:
40:	/**
41:	* @var null\|non-empty-string
42:	*/
43:	public ?string $title;
44:
45:	/**
46:	* @var null\|non-empty-string
47:	*/
48:	public ?string $description;
49:
50:	/**
51:	* @param list<string> $enum
52:	*/
53:	public function __construct(
54:	array $enum,
55:	?string $title = null,
56:	?string $description = null,
57:	public ?string $default = null,
58:	) {
59:	Assert::that($enum)
60:	->isList('untitled single select enum schema "enum" must be a list, non-list array given.')
61:	->values()->isNonEmptyString('each untitled single select enum schema "enum" must be a non-empty string.')
62:	;
63:	Assert::that($title)
64:	->nullOr()
65:	->isNonEmptyString('untitled single select enum schema "title" must be a non-empty string or null.')
66:	;
67:	Assert::that($description)
68:	->nullOr()
69:	->isNonEmptyString('untitled single select enum schema "description" must be a non-empty string or null.')
70:	;
71:
72:	$this->enum = $enum;
73:	$this->title = $title;
74:	$this->description = $description;
75:	}
76:
77:	#[\Override]
78:	public static function fromArray(array $data): static
79:	{
80:	Assert::that($data)->hasOffset('type', 'untitled single select enum schema is missing the required "type" key.');
81:	$type = $data['type'];
82:	Assert::that($type)->isIdentical(self::TYPE, 'untitled single select enum schema "type" must be {other}, {value} given.');
83:
84:	Assert::that($data)->hasOffset('enum', 'untitled single select enum schema is missing the required "enum" key.');
85:	Assert::that($data['enum'])
86:	->isList('untitled single select enum schema "enum" must be a list, non-list array given.')
87:	->values()->isString('each untitled single select enum schema "enum" must be a string, {type} given.')
88:	;
89:	$enum = $data['enum'];
90:
91:	$title = $data['title'] ?? null;
92:	Assert::that($title)->nullOr()->isString('untitled single select enum schema "title" must be a string or null, {type} given.');
93:
94:	$description = $data['description'] ?? null;
95:	Assert::that($description)->nullOr()->isString('untitled single select enum schema "description" must be a string or null, {type} given.');
96:
97:	$default = $data['default'] ?? null;
98:	Assert::that($default)->nullOr()->isString('untitled single select enum schema "default" must be a string or null, {type} given.');
99:
100:	return new self(enum: $enum, title: $title, description: $description, default: $default);
101:	}
102:
103:	#[\Override]
104:	public function toArray(): array
105:	{
106:	$data = [
107:	'type' => self::TYPE,
108:	'enum' => $this->enum,
109:	];
110:
111:	if (null !== $this->title) {
112:	$data['title'] = $this->title;
113:	}
114:
115:	if (null !== $this->description) {
116:	$data['description'] = $this->description;
117:	}
118:
119:	if (null !== $this->default) {
120:	$data['default'] = $this->default;
121:	}
122:
123:	return $data;
124:	}
125:
126:	#[\Override]
127:	public function jsonSerialize(): array
128:	{
129:	return $this->toArray();
130:	}
131:	}
132:

Namespaces

Classes

Interfaces