package fi.otavanopisto.pyramus.views.settings;

import java.util.List;
import java.util.Locale;

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.grading.TransferCreditTemplateDAO;
import fi.otavanopisto.pyramus.domainmodel.base.Curriculum;
import fi.otavanopisto.pyramus.framework.PyramusViewController;
import fi.otavanopisto.pyramus.framework.UserRole;
import fi.otavanopisto.pyramus.util.JSONArrayExtractor;

/**
 * The controller responsible of the List Grading Scales view of the application. 
 */
public class ManageTransferCreditTemplatesViewController extends PyramusViewController implements Breadcrumbable {

  /**
   * Processes the page request by including the corresponding JSP page to the response.
   * 
   * In order for the JSP page to build the view, all gradingScale objects are loaded in to "gradingScales" attribute
   * 
   * @param pageRequestContext Page request context
   */
  public void process(PageRequestContext pageRequestContext) {
    TransferCreditTemplateDAO transferCreditTemplateDAO = DAOFactory.getInstance().getTransferCreditTemplateDAO();
    CurriculumDAO curriculumDAO = DAOFactory.getInstance().getCurriculumDAO();
    
    String jsonTransferCreditTemplates = new JSONArrayExtractor("name", "id").extractString(transferCreditTemplateDAO.listAll());
    this.setJsDataVariable(pageRequestContext, "transferCreditTemplates", jsonTransferCreditTemplates);

    List<Curriculum> curriculums = curriculumDAO.listUnarchived();
    String jsonCurriculums = new JSONArrayExtractor("name", "id").extractString(curriculums);
    setJsDataVariable(pageRequestContext, "curriculums", jsonCurriculums);

    pageRequestContext.setIncludeJSP("/templates/settings/managetransfercredittemplates.jsp");
  }

  /**
   * Returns the roles allowed to access this page.
   * 
   * @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, "settings.manageTransferCreditTemplates.pageTitle");
  }

}