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\Server\Prompt;
15:
16: use Nexus\Mcp\Core\Schema\Cursor;
17: use Nexus\Mcp\Core\Schema\Prompt\Prompt;
18: use Nexus\Mcp\Core\Schema\Result\GetPromptResult;
19: use Nexus\Mcp\Core\Schema\Result\ListPromptsResult;
20: use Nexus\Mcp\Server\AbstractPaginatedStore;
21: use Nexus\Mcp\Server\Exception\PromptNotFoundException;
22: use Nexus\Mcp\Server\ServerContext;
23:
24: /**
25: * In-memory implementation of `PromptStoreInterface`.
26: *
27: * @extends AbstractPaginatedStore<PromptEntry>
28: */
29: final readonly class PromptStore extends AbstractPaginatedStore implements PromptStoreInterface
30: {
31: protected const string STORE_LABEL = 'Prompt store';
32:
33: #[\Override]
34: public function list(?Cursor $cursor): ListPromptsResult
35: {
36: return $this->paginate(
37: $cursor,
38: static fn(PromptEntry $entry): Prompt => $entry->prompt,
39: static fn(array $prompts, ?Cursor $nextCursor): ListPromptsResult => new ListPromptsResult($prompts, $nextCursor),
40: );
41: }
42:
43: #[\Override]
44: public function get(string $name, ?array $arguments, ServerContext $context): GetPromptResult
45: {
46: if (! \array_key_exists($name, $this->entries)) {
47: throw new PromptNotFoundException($name, $context->requestId);
48: }
49:
50: return $this->entries[$name]->renderer->render($arguments, $context);
51: }
52: }
53: