File Core/Handler/AbstractContext.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\Handler;
15:
16:	use Amp\Cancellation;
17:	use Nexus\Mcp\Core\Schema\Notification\ProgressNotification;
18:	use Nexus\Mcp\Core\Schema\NotificationParams\ProgressNotificationParams;
19:	use Nexus\Mcp\Core\Schema\ProgressToken;
20:	use Nexus\Mcp\Core\Schema\RequestId;
21:
22:	/**
23:	* Context passed to a request handler. Carries metadata about the incoming
24:	* request and exposes domain helpers for emitting out-of-band messages.
25:	*/
26:	abstract readonly class AbstractContext
27:	{
28:	public function __construct(
29:	public RequestId $requestId,
30:	public Cancellation $cancellation,
31:	public ?ProgressToken $progressToken,
32:	protected SenderInterface $sender,
33:	) {
34:	}
35:
36:	public function reportProgress(float $progress, ?float $total = null, ?string $message = null): void
37:	{
38:	$token = $this->progressToken;
39:
40:	if (null === $token) {
41:	return;
42:	}
43:
44:	$this->sender->sendNotification(new ProgressNotification(
45:	params: new ProgressNotificationParams(
46:	progressToken: $token,
47:	progress: $progress,
48:	total: $total,
49:	message: '' === $message ? null : $message,
50:	),
51:	));
52:	}
53:	}
54: