File Core/Schema/Implementation.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;
15:
16:	use Nexus\Assert\Assert;
17:
18:	/**
19:	* Describes the MCP implementation.
20:	*
21:	* @implements Arrayable<array{
22:	* name: non-empty-string,
23:	* version: non-empty-string,
24:	* title?: non-empty-string,
25:	* description?: non-empty-string,
26:	* websiteUrl?: non-empty-string,
27:	* icons?: list<template-type<Icon, Arrayable, 'T'>>,
28:	* }>
29:	*
30:	* @see https://modelcontextprotocol.io/specification/2025-11-25/schema#implementation
31:	*/
32:	final readonly class Implementation extends BaseMetadata implements Arrayable, Icons
33:	{
34:	/**
35:	* @var non-empty-string
36:	*/
37:	public string $version;
38:
39:	/**
40:	* @var null\|non-empty-string
41:	*/
42:	public ?string $description;
43:
44:	/**
45:	* @var null\|non-empty-string
46:	*/
47:	public ?string $websiteUrl;
48:
49:	/**
50:	* @var null\|list<Icon>
51:	*/
52:	public ?array $icons;
53:
54:	/**
55:	* @param null\|list<Icon> $icons
56:	*/
57:	public function __construct(
58:	string $name,
59:	string $version,
60:	?string $title = null,
61:	?string $description = null,
62:	?string $websiteUrl = null,
63:	?array $icons = null,
64:	) {
65:	parent::__construct($name, $title);
66:
67:	Assert::that($version)->isNonEmptyString('"version" must be a non-empty string.');
68:	Assert::that($description)->nullOr()->isNonEmptyString('"description" must be a non-empty string or null.');
69:	Assert::that($websiteUrl)
70:	->nullOr()
71:	->isNonEmptyString('"websiteUrl" must be a non-empty string or null.')
72:	->matchesRegularExpression('/\Ahttps?:\/\/\S+\z/', '"websiteUrl" must be an HTTP or HTTPS URL.')
73:	;
74:
75:	if (null !== $icons) {
76:	Assert::that($icons)->values()->isInstanceOf(Icon::class);
77:	}
78:
79:	$this->version = $version;
80:	$this->description = $description;
81:	$this->websiteUrl = $websiteUrl;
82:	$this->icons = $icons;
83:	}
84:
85:	/**
86:	* @param array<string, mixed> $data
87:	*/
88:	#[\Override]
89:	public static function fromArray(array $data): static
90:	{
91:	Assert::that($data)->hasOffset('name', 'missing the required "name" key.');
92:	$name = $data['name'];
93:	Assert::that($name)->isString('"name" must be a string, {type} given.');
94:
95:	Assert::that($data)->hasOffset('version', 'missing the required "version" key.');
96:	$version = $data['version'];
97:	Assert::that($version)->isString('"version" must be a string, {type} given.');
98:
99:	$title = $data['title'] ?? null;
100:	Assert::that($title)->nullOr()->isString('"title" must be a string or null, {type} given.');
101:
102:	$description = $data['description'] ?? null;
103:	Assert::that($description)->nullOr()->isString('"description" must be a string or null, {type} given.');
104:
105:	$websiteUrl = $data['websiteUrl'] ?? null;
106:	Assert::that($websiteUrl)->nullOr()->isString('"websiteUrl" must be a string or null, {type} given.');
107:
108:	$icons = null;
109:
110:	if (isset($data['icons'])) {
111:	Assert::that($data['icons'])
112:	->isList('"icons" must be a list, {type} given.')
113:	->values()
114:	->isArray('each implementation "icons" must be an object, {type} given.')
115:	->isMap('each implementation "icons" must be a string-keyed object.')
116:	;
117:	$icons = array_map(Icon::fromArray(...), $data['icons']);
118:	}
119:
120:	return new self($name, $version, $title, $description, $websiteUrl, $icons);
121:	}
122:
123:	#[\Override]
124:	public function toArray(): array
125:	{
126:	$data = [
127:	'name' => $this->name,
128:	'version' => $this->version,
129:	];
130:
131:	if (null !== $this->title) {
132:	$data['title'] = $this->title;
133:	}
134:
135:	if (null !== $this->description) {
136:	$data['description'] = $this->description;
137:	}
138:
139:	if (null !== $this->websiteUrl) {
140:	$data['websiteUrl'] = $this->websiteUrl;
141:	}
142:
143:	if (null !== $this->icons) {
144:	$data['icons'] = array_map(static fn(Icon $icon): array => $icon->toArray(), $this->icons);
145:	}
146:
147:	return $data;
148:	}
149:
150:	#[\Override]
151:	public function jsonSerialize(): array
152:	{
153:	return $this->toArray();
154:	}
155:	}
156:

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