80 lines
2.7 KiB
PHP
80 lines
2.7 KiB
PHP
<?php
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namespace Komponent\Component\Testquestions\Administrator\Service;
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defined('_JEXEC') or die;
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use Joomla\CMS\Http\HttpFactory;
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class AiService
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{
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public function evaluate(string $provider, string $apiKey, string $question, string $answer, string $pattern): string
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{
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$provider = strtolower(trim($provider));
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$provider = preg_replace('/[^a-z]/', '', $provider);
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$config = $provider === 'grok'
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? ['url' => 'https://api.x.ai/v1/responses', 'model' => 'grok-4.7']
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: ['url' => 'https://api.openai.com/v1/responses', 'model' => 'gpt-4.1-mini'];
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if (trim($apiKey) === '') {
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throw new \RuntimeException('AI_NOT_CONFIGURED');
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}
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if (!in_array($provider, ['openai', 'grok'], true)) {
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throw new \RuntimeException('Nieprawidłowy dostawca AI: ' . $provider);
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}
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$input = "Oceń odpowiedź ucznia na pytanie otwarte.\n\n"
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. "Pytanie:\n" . $question . "\n\n"
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. "Wzorzec odpowiedzi:\n" . $pattern . "\n\n"
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. "Odpowiedź ucznia:\n" . ($answer !== '' ? $answer : 'Brak odpowiedzi') . "\n\n"
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. "Napisz po polsku krótką ocenę: czy odpowiedź może zostać uznana za poprawną, jakie elementy są poprawne lub błędne oraz czy warto przyznać punkty. Nie zmieniaj wzorca odpowiedzi.";
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$payload = json_encode([
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'model' => $config['model'],
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'input' => $input,
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'temperature' => 0.1,
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], JSON_UNESCAPED_UNICODE);
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$response = HttpFactory::getHttp()->post(
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$config['url'],
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$payload,
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[
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'Authorization' => 'Bearer ' . trim($apiKey),
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'Content-Type' => 'application/json',
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],
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60
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);
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$body = json_decode((string) $response->body, true);
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if ((int) $response->code < 200 || (int) $response->code >= 300) {
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throw new \RuntimeException((string) ($body['error']['message'] ?? ('HTTP ' . (int) $response->code)));
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}
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$text = $this->extractText($body);
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if ($text === '') {
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throw new \RuntimeException('Brak treści odpowiedzi AI.');
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}
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return $text;
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}
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private function extractText(array $body): string
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{
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if (!empty($body['output_text']) && is_string($body['output_text'])) {
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return trim($body['output_text']);
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}
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$parts = [];
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foreach ((array) ($body['output'] ?? []) as $output) {
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foreach ((array) ($output['content'] ?? []) as $content) {
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if (!empty($content['text']) && is_string($content['text'])) {
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$parts[] = $content['text'];
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}
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}
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}
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return trim(implode("\n", $parts));
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}
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}
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