package org.kuali.student.lum.program.client.credential;

 import com.google.gwt.event.shared.HandlerManager;

 import org.kuali.student.common.ui.client.application.ViewContext;

 import org.kuali.student.common.ui.client.mvc.DataModel;

 import org.kuali.student.lum.program.client.credential.edit.CredentialEditController;

 import org.kuali.student.lum.program.client.credential.view.CredentialViewController;

 import org.kuali.student.lum.program.client.events.ProgramViewEvent;

 import org.kuali.student.lum.program.client.versions.ProgramVersionsController;

 import org.kuali.student.lum.program.client.widgets.ProgramSideBar;

 /**

  * @author Igor

  */

 public class CredentialManager {

     private CredentialViewController credentialViewController;

     private CredentialEditController credentialEditController;

     private ProgramVersionsController programVersionsController;

     protected DataModel model;

     private ViewContext viewContext = new ViewContext();

     private static HandlerManager eventBus;

     public CredentialManager() {

         eventBus = new HandlerManager(null);

         model = new DataModel();

     }

     public CredentialViewController getBaccViewController() {

         model.resetRoot();

         if (credentialViewController == null) {

             credentialViewController = new CredentialViewController(model, viewContext, eventBus);

         }

         eventBus.fireEvent(new ProgramViewEvent());

         return credentialViewController;

     }

     public CredentialEditController getBaccEditController() {

         model.resetRoot();

         if (credentialEditController == null) {

             credentialEditController = new CredentialEditController(model, viewContext, eventBus);

         }

         return credentialEditController;

     }

     public ProgramVersionsController getProgramVersionsController() {

         if (programVersionsController == null) {

             programVersionsController = new ProgramVersionsController(model, ProgramSideBar.Type.CREDENTIAL, viewContext, eventBus);

         }

         return programVersionsController;

     }

     public static HandlerManager getEventBus() {

         return eventBus;

     }

 }