gotem_content_moderation-1.1.6-alpha1/src/OpenAIModerationClient.php

<?php

namespace Drupal\gotem;

use GuzzleHttp\ClientInterface;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\gotem\Moderation\ModerationInterface;

/**
 * Class for interacting with the OpenAI Moderation API.
 */
class OpenAIModerationClient implements ModerationInterface {

  /**
   * The HTTP client for making requests.
   *
   * @var \GuzzleHttp\ClientInterface
   */
  protected $httpClient;

  /**
   * The API key for accessing OpenAI.
   *
   * @var string
   */
  protected $apiKey;

  /**
   * Constructs an OpenAIModerationClient object.
   *
   * @param \GuzzleHttp\ClientInterface $http_client
   *   The Guzzle HTTP client.
   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
   *   The configuration factory.
   */
  public function __construct(ClientInterface $http_client, ConfigFactoryInterface $config_factory) {
    $this->httpClient = $http_client;
    $this->apiKey = \Drupal::state()->get('gotem_content_moderation.api_key');
  }

  /**
   * {@inheritdoc}
   */
  public function moderateText(string $text): ?array {
    try {
      $authorization = 'Bearer ' . $this->apiKey;

      $response = $this->httpClient->post('https://api.openai.com/v1/moderations', [
        'headers' => [
          'Content-Type' => 'application/json',
          'Authorization' => $authorization,
        ],
        'json' => [
          'input' => $text,
        ],
      ]);

      $data = json_decode($response->getBody(), TRUE);

      return $data['results'][0];
    }
    catch (\Exception $e) {
      \Drupal::logger('gotem')->error($e->getMessage());
      return NULL;
    }
  }

}