Add frontend test scoring

components/com_testquestions/src/Controller/DisplayController.php

@@ -5,8 +5,18 @@ namespace Komponent\Component\Testquestions\Site\Controller;
 defined('_JEXEC') or die;
 
 use Joomla\CMS\MVC\Controller\BaseController;
+use Joomla\CMS\Session\Session;
 
 class DisplayController extends BaseController
 {
     protected $default_view = 'questions';
+
+    public function check()
+    {
+        if (!Session::checkToken()) {
+            throw new \RuntimeException('Invalid token', 403);
+        }
+
+        return $this->display();
+    }
 }

components/com_testquestions/src/Model/QuestionsModel.php

@@ -22,7 +22,7 @@ class QuestionsModel extends ListModel
     {
         $db = Factory::getContainer()->get('DatabaseDriver');
         $query = $db->getQuery(true)
-            ->select(['question_type', 'question', 'answer_a', 'answer_b', 'answer_c', 'answer_d', 'answer_open', 'correct_answer', 'image', 'time_limit', 'points'])
+            ->select(['id', 'test_symbol', 'question_type', 'question', 'answer_a', 'answer_b', 'answer_c', 'answer_d', 'answer_open', 'correct_answer', 'image', 'time_limit', 'points'])
             ->from($db->quoteName('#__testquestions_questions'))
             ->where($db->quoteName('published') . ' = 1')
             ->order($db->quoteName('ordering') . ' ASC, ' . $db->quoteName('id') . ' ASC');

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

@@ -5,12 +5,14 @@ namespace Komponent\Component\Testquestions\Site\View\Questions;
 defined('_JEXEC') or die;
 
 use Joomla\CMS\MVC\View\HtmlView as BaseHtmlView;
+use Joomla\CMS\Factory;
 
 class HtmlView extends BaseHtmlView
 {
     protected $items;
     protected $symbol;
     protected $symbols;
+    protected $results;
 
     public function formatSheetLabel($sheet)
     {
@@ -43,6 +45,53 @@ class HtmlView extends BaseHtmlView
         $this->items = $this->get('Items');
         $this->symbol = $this->get('State')->get('filter.test_symbol');
         $this->symbols = $this->get('TestSymbols');
+        $this->results = $this->buildResults($this->items);
         return parent::display($tpl);
     }
+
+    protected function buildResults(array $items)
+    {
+        $input = Factory::getApplication()->getInput();
+
+        if ($input->getCmd('task') !== 'check' || $input->getMethod() !== 'POST') {
+            return null;
+        }
+
+        $answers = (array) $input->post->get('answers', [], 'array');
+        $results = [];
+        $correct = 0;
+
+        foreach ($items as $item) {
+            $selected = isset($answers[$item->id]) ? trim((string) $answers[$item->id]) : '';
+            $isCorrect = false;
+
+            if ($item->question_type === 'open') {
+                $patterns = preg_split('/\s*\|\s*/', (string) $item->answer_open, -1, PREG_SPLIT_NO_EMPTY);
+                foreach ($patterns as $pattern) {
+                    if (mb_strtolower(trim($pattern), 'UTF-8') === mb_strtolower($selected, 'UTF-8')) {
+                        $isCorrect = true;
+                        break;
+                    }
+                }
+            } else {
+                $isCorrect = (string) $item->correct_answer === $selected;
+            }
+
+            if ($isCorrect) {
+                $correct++;
+            }
+
+            $results[$item->id] = [
+                'selected' => $selected,
+                'correct' => $isCorrect,
+            ];
+        }
+
+        return [
+            'items' => $results,
+            'correct' => $correct,
+            'total' => count($items),
+            'percentage' => count($items) ? round(($correct / count($items)) * 100, 2) : 0,
+        ];
+    }
 }