Add AI evaluation for incorrect open answers

administrator/components/com_testquestions/src/Controller/ResultController.php

@@ -32,6 +32,34 @@ class ResultController extends BaseController
         );
     }
 
+    public function ai(): void
+    {
+        if (!Session::checkToken()) {
+            throw new \RuntimeException(Text::_('JINVALID_TOKEN'), 403);
+        }
+
+        $input = Factory::getApplication()->getInput();
+        $id = $input->post->getInt('id');
+        $questionId = $input->post->getInt('ai_question_id');
+        $message = Text::_('COM_TESTQUESTIONS_AI_RESULT');
+        $type = 'message';
+
+        try {
+            $this->getModel('Result')->evaluateWithAi($id, $questionId);
+        } catch (\Throwable $error) {
+            $message = $error->getMessage() === 'AI_NOT_CONFIGURED'
+                ? Text::_('COM_TESTQUESTIONS_AI_NOT_CONFIGURED')
+                : Text::sprintf('COM_TESTQUESTIONS_AI_ERROR', $error->getMessage());
+            $type = 'error';
+        }
+
+        $this->setRedirect(
+            Route::_('index.php?option=com_testquestions&view=result&id=' . $id, false),
+            $message,
+            $type
+        );
+    }
+
     private function saveAssessment(): void
     {
         if (!Session::checkToken()) {

administrator/components/com_testquestions/src/Model/ResultModel.php

@@ -6,6 +6,8 @@ defined('_JEXEC') or die;
 
 use Joomla\CMS\Factory;
 use Joomla\CMS\MVC\Model\BaseDatabaseModel;
+use Joomla\CMS\Component\ComponentHelper;
+use Komponent\Component\Testquestions\Administrator\Service\AiService;
 
 class ResultModel extends BaseDatabaseModel
 {
@@ -72,4 +74,42 @@ class ResultModel extends BaseDatabaseModel
 
         return (bool) $db->updateObject('#__testquestions_results', $row, 'id');
     }
+
+    public function evaluateWithAi(int $id, int $questionId): string
+    {
+        $item = $this->getItem($id);
+
+        if (!$item) {
+            throw new \RuntimeException('Nie znaleziono zapisanego testu.');
+        }
+
+        $answer = $item->answers[$questionId] ?? null;
+        $question = $item->questions[$questionId] ?? null;
+
+        if (!$item || !$answer || !$question || $question->question_type !== 'open' || !empty($answer['correct'])) {
+            throw new \RuntimeException('Nieprawidłowe pytanie do oceny AI.');
+        }
+
+        $params = ComponentHelper::getParams('com_testquestions');
+        $feedback = (new AiService())->evaluate(
+            (string) $params->get('ai_provider', 'openai'),
+            (string) $params->get('ai_api_key', ''),
+            strip_tags((string) $question->question),
+            (string) ($answer['selected'] ?? ''),
+            (string) $question->answer_open
+        );
+        $item->answers[$questionId]['ai_feedback'] = $feedback;
+
+        $db = Factory::getContainer()->get('DatabaseDriver');
+        $row = (object) [
+            'id' => $id,
+            'answers' => json_encode($item->answers, JSON_UNESCAPED_UNICODE),
+        ];
+
+        if (!$db->updateObject('#__testquestions_results', $row, 'id')) {
+            throw new \RuntimeException('Nie udało się zapisać oceny AI.');
+        }
+
+        return $feedback;
+    }
 }

administrator/components/com_testquestions/src/Service/AiService.php

@@ -0,0 +1,74 @@
+<?php
+
+namespace Komponent\Component\Testquestions\Administrator\Service;
+
+defined('_JEXEC') or die;
+
+use Joomla\CMS\Http\HttpFactory;
+
+class AiService
+{
+    public function evaluate(string $provider, string $apiKey, string $question, string $answer, string $pattern): string
+    {
+        $provider = strtolower(trim($provider));
+        $config = $provider === 'grok'
+            ? ['url' => 'https://api.x.ai/v1/responses', 'model' => 'grok-4.7']
+            : ['url' => 'https://api.openai.com/v1/responses', 'model' => 'gpt-4.1-mini'];
+
+        if (!in_array($provider, ['openai', 'grok'], true) || trim($apiKey) === '') {
+            throw new \RuntimeException('AI_NOT_CONFIGURED');
+        }
+
+        $input = "Oceń odpowiedź ucznia na pytanie otwarte.\n\n"
+            . "Pytanie:\n" . $question . "\n\n"
+            . "Wzorzec odpowiedzi:\n" . $pattern . "\n\n"
+            . "Odpowiedź ucznia:\n" . ($answer !== '' ? $answer : 'Brak odpowiedzi') . "\n\n"
+            . "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.";
+
+        $payload = json_encode([
+            'model' => $config['model'],
+            'input' => $input,
+            'temperature' => 0.1,
+        ], JSON_UNESCAPED_UNICODE);
+
+        $response = HttpFactory::getHttp()->post(
+            $config['url'],
+            $payload,
+            [
+                'Authorization' => 'Bearer ' . trim($apiKey),
+                'Content-Type' => 'application/json',
+            ],
+            60
+        );
+        $body = json_decode((string) $response->body, true);
+
+        if ((int) $response->code < 200 || (int) $response->code >= 300) {
+            throw new \RuntimeException((string) ($body['error']['message'] ?? ('HTTP ' . (int) $response->code)));
+        }
+
+        $text = $this->extractText($body);
+        if ($text === '') {
+            throw new \RuntimeException('Brak treści odpowiedzi AI.');
+        }
+
+        return $text;
+    }
+
+    private function extractText(array $body): string
+    {
+        if (!empty($body['output_text']) && is_string($body['output_text'])) {
+            return trim($body['output_text']);
+        }
+
+        $parts = [];
+        foreach ((array) ($body['output'] ?? []) as $output) {
+            foreach ((array) ($output['content'] ?? []) as $content) {
+                if (!empty($content['text']) && is_string($content['text'])) {
+                    $parts[] = $content['text'];
+                }
+            }
+        }
+
+        return trim(implode("\n", $parts));
+    }
+}

administrator/components/com_testquestions/src/View/Questions/HtmlView.php

@@ -63,5 +63,11 @@ class HtmlView extends BaseHtmlView
             'COM_TESTQUESTIONS_RESULTS',
             'list'
         );
+
+        ToolbarHelper::link(
+            'index.php?option=com_config&view=component&component=com_testquestions',
+            'COM_TESTQUESTIONS_AI_SETTINGS_MENU',
+            'cog'
+        );
     }
 }