package fi.otavanopisto.pyramus.views.courses;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.Currency;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import org.apache.commons.lang.math.NumberUtils;
import fi.internetix.smvc.controllers.PageRequestContext;
import fi.otavanopisto.pyramus.I18N.Messages;
import fi.otavanopisto.pyramus.breadcrumbs.Breadcrumbable;
import fi.otavanopisto.pyramus.dao.DAOFactory;
import fi.otavanopisto.pyramus.dao.base.CurriculumDAO;
import fi.otavanopisto.pyramus.dao.base.EducationSubtypeDAO;
import fi.otavanopisto.pyramus.dao.base.EducationTypeDAO;
import fi.otavanopisto.pyramus.dao.base.EducationalTimeUnitDAO;
import fi.otavanopisto.pyramus.dao.base.SubjectDAO;
import fi.otavanopisto.pyramus.dao.courses.CourseDescriptionCategoryDAO;
import fi.otavanopisto.pyramus.dao.courses.CourseDescriptionDAO;
import fi.otavanopisto.pyramus.dao.courses.CourseEnrolmentTypeDAO;
import fi.otavanopisto.pyramus.dao.courses.CourseParticipationTypeDAO;
import fi.otavanopisto.pyramus.dao.courses.CourseStaffMemberRoleDAO;
import fi.otavanopisto.pyramus.dao.courses.CourseStateDAO;
import fi.otavanopisto.pyramus.dao.courses.CourseTypeDAO;
import fi.otavanopisto.pyramus.dao.modules.ModuleComponentDAO;
import fi.otavanopisto.pyramus.dao.modules.ModuleDAO;
import fi.otavanopisto.pyramus.domainmodel.base.CourseEducationSubtype;
import fi.otavanopisto.pyramus.domainmodel.base.CourseEducationType;
import fi.otavanopisto.pyramus.domainmodel.base.EducationSubtype;
import fi.otavanopisto.pyramus.domainmodel.base.EducationType;
import fi.otavanopisto.pyramus.domainmodel.base.EducationalTimeUnit;
import fi.otavanopisto.pyramus.domainmodel.base.Subject;
import fi.otavanopisto.pyramus.domainmodel.base.Tag;
import fi.otavanopisto.pyramus.domainmodel.courses.CourseParticipationType;
import fi.otavanopisto.pyramus.domainmodel.modules.Module;
import fi.otavanopisto.pyramus.domainmodel.modules.ModuleComponent;
import fi.otavanopisto.pyramus.domainmodel.users.Role;
import fi.otavanopisto.pyramus.framework.PyramusViewController;
import fi.otavanopisto.pyramus.framework.UserRole;
import fi.otavanopisto.pyramus.util.StringAttributeComparator;
/**
* The controller responsible of the Create Course view of the application.
*
* @see fi.otavanopisto.pyramus.json.users.CreateGradingScaleJSONRequestController
*/
public class CreateCourseViewController extends PyramusViewController implements Breadcrumbable {
/**
* Processes the page request by including the corresponding JSP page to the response.
*
* @param pageRequestContext Page request context
*/
public void process(PageRequestContext pageRequestContext) {
ModuleDAO moduleDAO = DAOFactory.getInstance().getModuleDAO();
CourseStaffMemberRoleDAO courseStaffMemberRoleDAO = DAOFactory.getInstance().getCourseStaffMemberRoleDAO();
CourseDescriptionCategoryDAO descriptionCategoryDAO = DAOFactory.getInstance().getCourseDescriptionCategoryDAO();
CourseDescriptionDAO descriptionDAO = DAOFactory.getInstance().getCourseDescriptionDAO();
CourseStateDAO courseStateDAO = DAOFactory.getInstance().getCourseStateDAO();
CourseTypeDAO courseTypeDAO = DAOFactory.getInstance().getCourseTypeDAO();
CourseEnrolmentTypeDAO enrolmentTypeDAO = DAOFactory.getInstance().getCourseEnrolmentTypeDAO();
CourseParticipationTypeDAO participationTypeDAO = DAOFactory.getInstance().getCourseParticipationTypeDAO();
ModuleComponentDAO moduleComponentDAO = DAOFactory.getInstance().getModuleComponentDAO();
SubjectDAO subjectDAO = DAOFactory.getInstance().getSubjectDAO();
EducationTypeDAO educationTypeDAO = DAOFactory.getInstance().getEducationTypeDAO();
EducationalTimeUnitDAO educationalTimeUnitDAO = DAOFactory.getInstance().getEducationalTimeUnitDAO();
EducationSubtypeDAO educationSubtypeDAO = DAOFactory.getInstance().getEducationSubtypeDAO();
CurriculumDAO curriculumDAO = DAOFactory.getInstance().getCurriculumDAO();
// The module acting as the base of the new course
Module module = moduleDAO.findById(NumberUtils.createLong(pageRequestContext.getRequest().getParameter("module")));
pageRequestContext.getRequest().setAttribute("module", module);
// Create a hashmap of the education types and education subtypes selected in the module so that the
// course to be created has them selected as well
List<EducationType> educationTypes = educationTypeDAO.listUnarchived();
Collections.sort(educationTypes, new StringAttributeComparator("getName"));
pageRequestContext.getRequest().setAttribute("educationTypes", educationTypes);
Map<String, Boolean> enabledEducationTypes = new HashMap<>();
for (CourseEducationType courseEducationType : module.getCourseEducationTypes()) {
for (CourseEducationSubtype moduleEducationSubtype : courseEducationType.getCourseEducationSubtypes()) {
enabledEducationTypes.put(courseEducationType.getEducationType().getId() + "."
+ moduleEducationSubtype.getEducationSubtype().getId(), Boolean.TRUE);
}
}
pageRequestContext.getRequest().setAttribute("enabledEducationTypes", enabledEducationTypes);
// Module tags for the new course
StringBuilder tagsBuilder = new StringBuilder();
Iterator<Tag> tagIterator = module.getTags().iterator();
while (tagIterator.hasNext()) {
Tag tag = tagIterator.next();
tagsBuilder.append(tag.getText());
if (tagIterator.hasNext())
tagsBuilder.append(' ');
}
pageRequestContext.getRequest().setAttribute("tags", tagsBuilder.toString());
List<ModuleComponent> moduleComponents = moduleComponentDAO.listByModule(module);
// Subjects
Map<Long, List<Subject>> subjectsByEducationType = new HashMap<>();
List<Subject> subjectsByNoEducationType = subjectDAO.listByEducationType(null);
Collections.sort(subjectsByNoEducationType, new StringAttributeComparator("getName"));
for (EducationType educationType : educationTypes) {
List<Subject> subjectsOfType = subjectDAO.listByEducationType(educationType);
if (subjectsOfType != null && !subjectsOfType.isEmpty()) {
Collections.sort(subjectsOfType, new StringAttributeComparator("getName"));
subjectsByEducationType.put(educationType.getId(), subjectsOfType);
}
}
// Various lists of base entities from module, course, and resource DAOs
List<EducationalTimeUnit> educationalTimeUnits = educationalTimeUnitDAO.listUnarchived();
Collections.sort(educationalTimeUnits, new StringAttributeComparator("getName"));
List<CourseParticipationType> courseParticipationTypes = participationTypeDAO.listUnarchived();
Collections.sort(courseParticipationTypes, new Comparator<CourseParticipationType>() {
public int compare(CourseParticipationType o1, CourseParticipationType o2) {
return o1.getIndexColumn() == null ? -1 : o2.getIndexColumn() == null ? 1 : o1.getIndexColumn().compareTo(o2.getIndexColumn());
}
});
Map<Long, List<EducationSubtype>> educationSubtypes = new HashMap<>();
for (EducationType educationType : educationTypes) {
List<EducationSubtype> subtypes = educationSubtypeDAO.listByEducationType(educationType);
Collections.sort(subtypes, new StringAttributeComparator("getName"));
educationSubtypes.put(educationType.getId(), subtypes);
}
// TODO: Support other currencies
List<Currency> currencies = Arrays.asList(Currency.getInstance("EUR"));
pageRequestContext.getRequest().setAttribute("educationSubtypes", educationSubtypes);
pageRequestContext.getRequest().setAttribute("states", courseStateDAO.listUnarchived());
pageRequestContext.getRequest().setAttribute("types", courseTypeDAO.listUnarchived());
pageRequestContext.getRequest().setAttribute("roles", courseStaffMemberRoleDAO.listAll());
pageRequestContext.getRequest().setAttribute("subjectsByNoEducationType", subjectsByNoEducationType);
pageRequestContext.getRequest().setAttribute("subjectsByEducationType", subjectsByEducationType);
pageRequestContext.getRequest().setAttribute("courseParticipationTypes", courseParticipationTypes);
pageRequestContext.getRequest().setAttribute("courseEnrolmentTypes", enrolmentTypeDAO.listAll());
pageRequestContext.getRequest().setAttribute("courseLengthTimeUnits", educationalTimeUnits);
pageRequestContext.getRequest().setAttribute("moduleComponents", moduleComponents);
pageRequestContext.getRequest().setAttribute("courseDescriptions", descriptionDAO.listByCourseBase(module));
pageRequestContext.getRequest().setAttribute("courseDescriptionCategories", descriptionCategoryDAO.listUnarchived());
pageRequestContext.getRequest().setAttribute("currencies", currencies);
pageRequestContext.getRequest().setAttribute("curriculums", curriculumDAO.listUnarchived());
pageRequestContext.setIncludeJSP("/templates/courses/createcourse.jsp");
}
/**
* Returns the roles allowed to access this page. Creating courses is available for users with
* {@link Role#MANAGER} or {@link Role#ADMINISTRATOR} privileges.
*
* @return The roles allowed to access this page
*/
public UserRole[] getAllowedRoles() {
return new UserRole[] { UserRole.MANAGER, UserRole.STUDY_PROGRAMME_LEADER, UserRole.ADMINISTRATOR };
}
/**
* Returns the localized name of this page. Used e.g. for breadcrumb navigation.
*
* @param locale The locale to be used for the name
*
* @return The localized name of this page
*/
public String getName(Locale locale) {
return Messages.getInstance().getText(locale, "courses.createCourse.pageTitle");
}
}