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<?php |
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declare(strict_types=1); |
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/* For licensing terms, see /license.txt */ |
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namespace Chamilo\CoreBundle\Service\AI; |
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use Chamilo\CoreBundle\Settings\SettingsManager; |
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use Symfony\Contracts\HttpClient\HttpClientInterface; |
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class DeepSeekAiProvider implements AiProviderInterface |
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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 float $temperature; |
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private string $organizationId; |
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private int $monthlyTokenLimit; |
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private HttpClientInterface $httpClient; |
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public function __construct(HttpClientInterface $httpClient, SettingsManager $settingsManager) |
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{ |
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$this->httpClient = $httpClient; |
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// Get AI providers from settings |
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$configJson = $settingsManager->getSetting('ai_helpers.ai_providers', true); |
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$config = json_decode($configJson, true) ?? []; |
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if (!isset($config['deepseek'])) { |
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throw new \RuntimeException('DeepSeek configuration is missing.'); |
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} |
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$this->apiUrl = $config['deepseek']['url'] ?? 'https://api.deepseek.com/chat/completions'; |
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$this->apiKey = $config['deepseek']['api_key'] ?? ''; |
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$this->model = $config['deepseek']['model'] ?? 'deepseek-chat'; |
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$this->temperature = $config['deepseek']['temperature'] ?? 0.7; |
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$this->organizationId = $config['deepseek']['organization_id'] ?? ''; |
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$this->monthlyTokenLimit = $config['deepseek']['monthly_token_limit'] ?? 5000; |
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if (empty($this->apiKey)) { |
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throw new \RuntimeException('DeepSeek API key is missing.'); |
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} |
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} |
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public function generateQuestions(string $topic, int $numQuestions, string $questionType, string $language): ?string |
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{ |
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$prompt = sprintf( |
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'Generate %d "%s" questions in Aiken format in the %s language about "%s", making sure there is a \'ANSWER\' line for each question. \'ANSWER\' lines must only mention the letter of the correct answer, not the full answer text and not a parenthesis. The line starting with \'ANSWER\' must not be separated from the last possible answer by a blank line. Each answer starts with an uppercase letter, a dot, one space and the answer text without quotes. Include an \'ANSWER_EXPLANATION\' line after the \'ANSWER\' line for each question. The terms between single quotes above must not be translated. There must be a blank line between each question.', |
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$numQuestions, $questionType, $language, $topic |
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); |
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try { |
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$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' => [ |
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'model' => $this->model, |
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'messages' => [ |
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['role' => 'system', 'content' => 'You are a helpful assistant that generates Aiken format questions.'], |
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['role' => 'user', 'content' => $prompt] |
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], |
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'temperature' => $this->temperature, |
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'max_tokens' => 1000, |
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], |
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]); |
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$statusCode = $response->getStatusCode(); |
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$data = $response->toArray(); |
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if ($statusCode === 200 && isset($data['choices'][0]['message']['content'])) { |
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return $data['choices'][0]['message']['content']; |
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} |
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return null; |
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} catch (\Exception $e) { |
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error_log("ERROR - DeepSeek Request failed: " . $e->getMessage()); |
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return null; |
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} |
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} |
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} |
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chamilo /
chamilo-lms
