File Core/Schema/Result/ListResourcesResult.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\Schema\Arrayable;
18:	use Nexus\Mcp\Core\Schema\Cursor;
19:	use Nexus\Mcp\Core\Schema\Enum\CacheScope;
20:	use Nexus\Mcp\Core\Schema\Enum\ResultType;
21:	use Nexus\Mcp\Core\Schema\MetaObject;
22:	use Nexus\Mcp\Core\Schema\Resource\Resource;
23:	use Nexus\Mcp\Core\Validation\EnumValueValidator;
24:
25:	/**
26:	* The result returned by the server for a `resources/list` request.
27:	*
28:	* @extends PaginatedResult<array{
29:	* _meta?: template-type<MetaObject, Arrayable, 'T'>,
30:	* resultType: non-empty-string,
31:	* resources: list<template-type<Resource, Arrayable, 'T'>>,
32:	* nextCursor?: non-empty-string,
33:	* ttlMs: int,
34:	* cacheScope: value-of<CacheScope>,
35:	* }>
36:	*
37:	* @see https://modelcontextprotocol.io/specification/draft/schema#listresourcesresult
38:	*/
39:	final readonly class ListResourcesResult extends PaginatedResult implements ServerResult
40:	{
41:	/**
42:	* @var list<Resource>
43:	*/
44:	public array $resources;
45:
46:	/**
47:	* @param list<Resource> $resources
48:	*/
49:	public function __construct(
50:	array $resources,
51:	int $ttlMs,
52:	CacheScope $cacheScope,
53:	?Cursor $nextCursor = null,
54:	MetaObject $meta = new MetaObject(),
55:	) {
56:	Assert::that($resources)
57:	->isList('"result.resources" must be a list, non-list array given.')
58:	->values()->isInstanceOf(Resource::class)
59:	;
60:
61:	$this->resources = $resources;
62:
63:	parent::__construct(ttlMs: $ttlMs, cacheScope: $cacheScope, nextCursor: $nextCursor, meta: $meta);
64:	}
65:
66:	#[\Override]
67:	public static function fromArray(array $data): static
68:	{
69:	Assert::that($data)->hasOffset('resources', '"result" is missing the required "resources" key.');
70:	Assert::that($data['resources'])
71:	->isList('"result.resources" must be a list, {type} given.')
72:	->values()
73:	->isArray('each "result.resource" must be an object, {type} given.')
74:	->isMap('each "result.resource" must be a string-keyed object.')
75:	;
76:	$resources = array_map(Resource::fromArray(...), $data['resources']);
77:
78:	Assert::that($data)->hasOffset('ttlMs', '"result" is missing the required "ttlMs" key.');
79:	$ttlMs = $data['ttlMs'];
80:	Assert::that($ttlMs)->isInt('"result.ttlMs" must be an integer, {type} given.');
81:
82:	Assert::that($data)->hasOffset('cacheScope', '"result" is missing the required "cacheScope" key.');
83:	$cacheScope = EnumValueValidator::parse(CacheScope::class, $data['cacheScope'], '"result.cacheScope"');
84:
85:	$nextCursor = null;
86:
87:	if (\array_key_exists('nextCursor', $data)) {
88:	$raw = $data['nextCursor'];
89:	Assert::that($raw)->isString('"result.nextCursor" must be a string, {type} given.');
90:	$nextCursor = new Cursor(cursor: $raw);
91:	}
92:
93:	$meta = new MetaObject();
94:
95:	if (\array_key_exists('_meta', $data)) {
96:	Assert::that($data['_meta'])
97:	->isArray('"result._meta" must be an object, {type} given.')
98:	->isMap('"result._meta" must be a string-keyed object.')
99:	;
100:	$meta = MetaObject::fromArray($data['_meta']);
101:	}
102:
103:	return new self(
104:	resources: $resources,
105:	ttlMs: $ttlMs,
106:	cacheScope: $cacheScope,
107:	nextCursor: $nextCursor,
108:	meta: $meta,
109:	);
110:	}
111:
112:	#[\Override]
113:	public function toArray(): array
114:	{
115:	$data = [];
116:	$meta = $this->meta->toArray();
117:
118:	if ([] !== $meta) {
119:	$data['_meta'] = $meta;
120:	}
121:
122:	$data['resultType'] = self::getResultType();
123:	$data['resources'] = array_map(
124:	static fn(Resource $resource): array => $resource->toArray(),
125:	$this->resources,
126:	);
127:
128:	if (null !== $this->nextCursor) {
129:	$data['nextCursor'] = $this->nextCursor->cursor;
130:	}
131:
132:	$data['ttlMs'] = $this->ttlMs;
133:	$data['cacheScope'] = $this->cacheScope->value;
134:
135:	return $data;
136:	}
137:
138:	#[\Override]
139:	protected function getResultType(): string
140:	{
141:	return ResultType::Complete->value;
142:	}
143:	}
144:

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