package org.kuali.student.lum.lu.ui.dependency.client.controllers;
   
   import java.util.List;
   
   import org.kuali.student.common.ui.client.application.Application;
   import org.kuali.student.common.ui.client.configurable.mvc.layouts.BasicLayout;
   import org.kuali.student.common.ui.client.mvc.Callback;
   import org.kuali.student.common.ui.client.mvc.DataModel;
   import org.kuali.student.common.ui.client.security.AuthorizationCallback;
  import org.kuali.student.common.ui.client.security.RequiresAuthorization;
  import org.kuali.student.common.ui.client.util.ExportElement;
  import org.kuali.student.lum.common.client.lu.LUUIPermissions;
  import org.kuali.student.lum.lu.ui.dependency.client.views.DependencyAnalysisView;
  
  import com.google.gwt.core.client.GWT;
  
  public class DependencyAnalysisController extends BasicLayout implements RequiresAuthorization {
  
      public enum DependencyViews {
          MAIN
      };
  
      public DependencyAnalysisController(String controllerId) {
          super(controllerId);
          addView(new DependencyAnalysisView(this));
          setDefaultView(DependencyViews.MAIN);
      }
  
      public void showExport(boolean show) {
          DependencyAnalysisView dependancyView = (DependencyAnalysisView) viewMap.get(DependencyViews.MAIN);
          if (dependancyView.getHeader() != null) {
              dependancyView.getHeader().showExport(isExportButtonActive());
  
          }
      }
  
      @Override
      public boolean isExportButtonActive() {
          return true;
      }
  
      @Override
      public DataModel getExportDataModel() {
          // TODO Auto-generated method stub
          return super.getExportDataModel();
      }
  
      @Override
      public List<ExportElement> getExportElementsFromView() {
          DependencyAnalysisView view = (DependencyAnalysisView) this.getCurrentView();
          ExportElement element = GWT.create(ExportElement.class);
          element.setViewName(view.getName());
          element.setSectionName("");
          return view.getDepResultPanel().getExportElementSubset(element);
      }
  
      /**
       * @see org.kuali.student.common.ui.client.reporting.ReportExport#getExportTemplateName()
       */
      @Override
      public String getExportTemplateName() {
          return "analysis.template";
      }
  
      /**
       * This overridden method return the view name when the controller name is null.
       * 
       * @see org.kuali.student.common.ui.client.configurable.mvc.LayoutController#getName()
       */
      @Override
      public String getName() {
          String name = super.getName();
          if ((name == null) && (this.getCurrentView() != null)) {
              name = this.getCurrentView().getName();
          }
          return name;
      }
      
      @Override
      public boolean isAuthorizationRequired() {
          return true;
      }
  
      @Override
      public void setAuthorizationRequired(boolean required) {
          throw new UnsupportedOperationException();
      }
      
      @Override
      public void checkAuthorization(final AuthorizationCallback authCallback) {
          Application.getApplicationContext().getSecurityContext().checkScreenPermission(LUUIPermissions.USE_DEPENDENCY_ANALYSIS_SCREEN, new Callback<Boolean>() {
              @Override
              public void exec(Boolean result) {
  
                  final boolean isAuthorized = result;
              
                  if(isAuthorized){
                      authCallback.isAuthorized();
                  }
                 else
                     authCallback.isNotAuthorized("User is not authorized: " + LUUIPermissions.USE_DEPENDENCY_ANALYSIS_SCREEN);
             }   
         });
     }
 
 }