<?php
declare(strict_types=1);
namespace Butschster\ContextGenerator\Rag\Vectorizer;
use Butschster\ContextGenerator\Lib\Variable\VariableResolver;
use Butschster\ContextGenerator\Rag\Config\RagConfig;
use Symfony\AI\Platform\Bridge\OpenAi\PlatformFactory as OpenAiPlatformFactory;
use Symfony\AI\Store\Document\Vectorizer;
use Symfony\AI\Store\Document\VectorizerInterface;
final readonly class VectorizerFactory
{
public function __construct(
private VariableResolver $variableResolver,
) {}
public function create(RagConfig $config): VectorizerInterface
{
$platform = match ($config->vectorizer->platform) {
'openai' => OpenAiPlatformFactory::create(
apiKey: $this->variableResolver->resolve($config->vectorizer->apiKey),
),
default => throw new \InvalidArgumentException(
\sprintf('Unknown vectorizer platform: %s', $config->vectorizer->platform),
),
};
return new Vectorizer($platform, $config->vectorizer->model);
}
}
