Current File : /home/tjamichg/cursos.tjamich.gob.mx/plugin/ai_helper/src/deepseek/DeepSeek.php
<?php
/* For license terms, see /license.txt */
require_once 'DeepSeekUrl.php';
class DeepSeek
{
private $apiKey;
private $headers;
public function __construct(string $apiKey)
{
$this->apiKey = $apiKey;
$this->headers = [
'Content-Type: application/json',
"Authorization: Bearer {$this->apiKey}",
];
}
/**
* Generate questions using the DeepSeek API.
*
* @param array $payload Data to send to the API
*
* @throws Exception If an error occurs during the request
*
* @return string Decoded response from the API
*/
public function generateQuestions(array $payload): string
{
$url = DeepSeekUrl::completionsUrl();
$response = $this->sendRequest($url, 'POST', $payload);
if (empty($response)) {
throw new Exception('The DeepSeek API returned no response.');
}
$result = json_decode($response, true);
// Validate errors returned by the API
if (isset($result['error'])) {
throw new Exception("DeepSeek API Error: {$result['error']['message']}");
}
// Ensure the response contains the expected "choices" field
if (!isset($result['choices'][0]['message']['content'])) {
throw new Exception('Unexpected response format from the DeepSeek API.');
}
return $result['choices'][0]['message']['content'];
}
/**
* Send a request to the DeepSeek API.
*
* @param string $url Endpoint to send the request to
* @param string $method HTTP method (e.g., GET, POST)
* @param array $data Data to send as JSON
*
* @throws Exception If a cURL error occurs
*
* @return string Raw response from the API
*/
private function sendRequest(string $url, string $method, array $data = []): string
{
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers);
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
if (curl_errno($ch)) {
$errorMessage = curl_error($ch);
curl_close($ch);
throw new Exception("cURL Error: {$errorMessage}");
}
curl_close($ch);
// Validate HTTP status codes
if ($httpCode < 200 || $httpCode >= 300) {
throw new Exception("Request to DeepSeek failed with HTTP status code: {$httpCode}");
}
return $response;
}
}
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