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<?php |
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declare(strict_types=1); |
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namespace Chamilo\CoreBundle\AiProvider; |
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use Chamilo\CoreBundle\Entity\AiRequests; |
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use Chamilo\CoreBundle\Repository\AiRequestsRepository; |
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use Chamilo\CoreBundle\Settings\SettingsManager; |
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use Exception; |
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use RuntimeException; |
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use Symfony\Bundle\SecurityBundle\Security; |
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use Symfony\Component\Security\Core\User\UserInterface; |
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use Symfony\Contracts\HttpClient\HttpClientInterface; |
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class GrokImageProvider implements AiImageProviderInterface |
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{ |
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private string $apiUrl; |
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private string $apiKey; |
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private string $model; |
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private array $defaultOptions; |
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private HttpClientInterface $httpClient; |
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private AiRequestsRepository $aiRequestsRepository; |
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private Security $security; |
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public function __construct( |
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HttpClientInterface $httpClient, |
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SettingsManager $settingsManager, |
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AiRequestsRepository $aiRequestsRepository, |
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Security $security |
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) { |
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$this->httpClient = $httpClient; |
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$this->aiRequestsRepository = $aiRequestsRepository; |
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$this->security = $security; |
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// Get AI providers from settings |
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$configJson = $settingsManager->getSetting('ai_helpers.ai_providers', true); |
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$config = json_decode($configJson, true) ?? []; |
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if (!isset($config['grok'])) { |
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throw new RuntimeException('Grok configuration is missing.'); |
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} |
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if (!isset($config['grok']['image'])) { |
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throw new RuntimeException('Grok configuration for image processing is missing.'); |
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} |
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$this->apiKey = $config['grok']['api_key'] ?? ''; |
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$this->apiUrl = $config['grok']['image']['url'] ?? 'https://api.x.ai/v1/images/generations'; |
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$this->model = $config['grok']['image']['model'] ?? 'grok-2-image'; |
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$this->defaultOptions = [ |
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'response_format' => $config['grok']['image']['response_format'] ?? 'b64_json', |
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'n' => 1, // Number of images is fixed until we add an interface for choosing |
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]; |
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if (empty($this->apiKey)) { |
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throw new RuntimeException('Grok API key is missing.'); |
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} |
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} |
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public function generateImage(string $prompt, string $toolName, ?array $options = []): ?string |
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{ |
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return $this->requestGrokAI($prompt, $toolName, $options); |
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} |
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private function requestGrokAI(string $prompt, string $toolName, array $options = []): ?string |
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{ |
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$userId = $this->getUserId(); |
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if (!$userId) { |
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throw new RuntimeException('User not authenticated.'); |
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} |
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$payload = [ |
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'model' => $this->model, |
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'prompt' => $prompt, // Direct prompt string, no messages array |
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...array_merge($this->defaultOptions, $options), |
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]; |
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try { |
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$response = $this->httpClient->request('POST', $this->apiUrl, [ |
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'headers' => [ |
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'Authorization' => 'Bearer '.$this->apiKey, |
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'Content-Type' => 'application/json', |
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], |
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'json' => $payload, |
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]); |
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$statusCode = $response->getStatusCode(); |
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if (200 !== $statusCode) { |
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throw new RuntimeException('API request failed with status: ' . $statusCode); |
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} |
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$data = $response->toArray(); |
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// Check for error key first |
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if (isset($data['error'])) { |
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throw new RuntimeException('API error: ' . $data['error']['message']); |
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} |
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// Proper access: assuming response_format 'b64_json' |
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if (isset($data['data'][0]['b64_json'])) { |
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$generatedContent = $data['data'][0]['b64_json']; |
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// Usage might not exist for images; default to 0 |
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$usage = $data['usage'] ?? ['prompt_tokens' => 0, 'completion_tokens' => 0, 'total_tokens' => 0]; |
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// Log request |
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$aiRequest = new AiRequests(); |
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$aiRequest->setUserId($userId) |
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->setToolName($toolName) |
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->setRequestText($prompt) |
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->setPromptTokens($usage['prompt_tokens']) |
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->setCompletionTokens($usage['completion_tokens']) |
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->setTotalTokens($usage['total_tokens']) |
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->setAiProvider('grok') |
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; |
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$this->aiRequestsRepository->save($aiRequest); |
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return $generatedContent; |
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} |
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return null; |
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} catch (Exception $e) { |
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error_log('[AI][Grok] Exception: '.$e->getMessage()); |
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return null; |
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} |
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} |
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private function getUserId(): ?int |
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{ |
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$user = $this->security->getUser(); |
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return $user instanceof UserInterface ? $user->getId() : null; |
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} |
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} |
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In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
integervalues, zero is a special case, in particular the following results might be unexpected: