<?php
declare(strict_types=1);
namespace Butschster\ContextGenerator\McpServer\Tool;
use Butschster\ContextGenerator\McpServer\Tool\Config\ToolDefinition;
use Butschster\ContextGenerator\McpServer\Tool\Types\HttpToolHandler;
use Butschster\ContextGenerator\McpServer\Tool\Types\RunToolHandler;
use Butschster\ContextGenerator\McpServer\Tool\Types\ToolHandlerInterface;
use Psr\Container\ContainerInterface;
use Spiral\Core\Attribute\Singleton;
/**
* Factory for creating tool handlers based on tool type.
*/
#[Singleton]
final readonly class ToolHandlerFactory
{
/**
* @param array<string, class-string<ToolHandlerInterface>> $handlers Mapping of tool types to handler classes
*/
public function __construct(
private ContainerInterface $container,
private array $handlers = [
'run' => RunToolHandler::class,
'http' => HttpToolHandler::class,
],
) {}
/**
* Creates a handler for the given tool.
*/
public function createHandlerForTool(ToolDefinition $tool): ToolHandlerInterface
{
// First try to find a handler that explicitly supports this tool type
foreach ($this->getHandlerInstances() as $handler) {
if ($handler->supports($tool->type)) {
return $handler;
}
}
// If no handler declares explicit support, use the class mapping
if (isset($this->handlers[$tool->type])) {
return $this->container->get($this->handlers[$tool->type]);
}
// Fallback to the default run handler
return $this->container->get(RunToolHandler::class);
}
/**
* Get all registered handler instances.
*
* @return array<ToolHandlerInterface>
*/
private function getHandlerInstances(): array
{
$instances = [];
foreach ($this->handlers as $handlerClass) {
$instances[] = $this->container->get($handlerClass);
}
return $instances;
}
}
