public function index(Request $request)
{
/*
* session()->keep here is used to retain the lesson id even if the user refreshes the page
* this keeps the lesson id hidden to the user and inaccessible by anyone else
* the lesson id is not retained when navigating away from the page so the page will be inaccessible once done
*/
$lessonId = session('lessonId');
// If lesson id does not exist in the session, do not allow access to the page
if (!isset($lessonId)) {
return redirect('lessons');
}
$user = auth()->user();
$words = Word::orderBy(\DB::raw('RAND()'))->take(80)->get();
$questions = LessonWord::with('word')->where('lesson_id', $lessonId)->get();
session()->flash('maxQuestions', count($questions));
if (empty(session('questionIndex'))) {
session()->flash('questionIndex', 0);
// Start with index zero
} else {
session()->keep('questionIndex');
}
$generatedOptions = $this->generateOptions($questions, $words);
// Pass this to view
if ($generatedOptions == null) {
return redirect('lessons');
// Return users to lesson page if they try to go back to the finished exam
}
return view('lessons.exam', ['user' => $user, 'questions' => $questions, 'options' => $generatedOptions]);
}
