/*TODO Move this displaying logic to separate jstl? Or just move it to jsp*/
private TreeMap<String, Collection<Exam>> groupBySubjects(Collection<Exam> examHeaders) {
TreeMap<String, Collection<Exam>> subjectsNameExamMap = new TreeMap<>();
for (Exam exam : examHeaders) {
if (subjectsNameExamMap.containsKey(exam.getSubject().getName())) {
subjectsNameExamMap.get(exam.getSubject().getName()).add(exam);
} else {
Set<Exam> subjEx = new HashSet<>();
subjEx.add(exam);
subjectsNameExamMap.put(exam.getSubject().getName(), subjEx);
}
}
return subjectsNameExamMap;
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String creationForm = "creationForm";
String create = "create";
String take = "take";
String submit = "submit";
String action = request.getParameter("action");
String profileLanguage =
((Profile) request.getSession().getAttribute("profile")).getLanguageCode();
if (creationForm.equals(action)) {
request.setAttribute("subjects", subjectService.getAll(profileLanguage));
goToPage(request, response, "WEB-INF/view/createExam.jsp");
} else if (take.equals(action)) {
request.setAttribute("exam", examService.getExam(request.getParameter("id")));
goToPage(request, response, "WEB-INF/view/takeExam.jsp");
} else if (create.equals(action)) {
Exam createdExam = examCreationMapper.mapExam(request.getParameterMap());
// TODO move logic from controller
String subjectName = createdExam.getSubject().getName();
Subject subject = subjectService.getSubject(subjectName);
if (subject.getId().isEmpty()) {
subject = subjectService.createSubject(subjectName, profileLanguage);
}
createdExam = new Exam.Builder(createdExam).subject(subject).build();
examService.createExam(createdExam);
request.setAttribute("createdExamName", createdExam.getName());
goToExamsPage(request, response);
} else if (submit.equals(action)) {
Exam submittedExam = examSubmissionMapper.mapExam(request.getParameterMap());
Exam originalExam = examService.getExam(submittedExam.getId());
request.setAttribute("takenExamName", originalExam.getName());
request.setAttribute("questionsInExam", originalExam.getQuestions().size());
request.setAttribute(
"correctlyAnsweredQuestions", examChecker.checkExam(originalExam, submittedExam));
goToExamsPage(request, response);
} else { // TODO: Implement wrong action handling. Going to exams view page
goToExamsPage(request, response);
}
}