package org.kuali.student.lum.lu.ui.course.client.controllers;
   
   import org.kuali.student.common.dto.DtoConstants;
   import org.kuali.student.common.ui.client.application.Application;
   import org.kuali.student.common.ui.client.application.ViewContext;
   import org.kuali.student.common.ui.client.event.ActionEvent;
   import org.kuali.student.common.ui.client.event.SaveActionEvent;
   import org.kuali.student.common.ui.client.mvc.ActionCompleteCallback;
   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.service.BaseDataOrchestrationRpcServiceAsync;
  import org.kuali.student.common.ui.client.util.WindowTitleUtils;
  import org.kuali.student.common.ui.client.widgets.KSButton;
  import org.kuali.student.common.ui.client.widgets.notification.KSNotification;
  import org.kuali.student.common.ui.client.widgets.notification.KSNotifier;
  import org.kuali.student.common.ui.shared.IdAttributes.IdType;
  import org.kuali.student.lum.common.client.widgets.AppLocations;
  import org.kuali.student.lum.lu.assembly.data.client.constants.orch.CreditCourseConstants;
  import org.kuali.student.lum.lu.ui.course.client.configuration.CourseAdminRetireConfigurer;
  import org.kuali.student.lum.lu.ui.course.client.widgets.CourseWorkflowActionList;
  
  import com.google.gwt.core.client.GWT;
  import com.google.gwt.event.dom.client.ClickEvent;
  import com.google.gwt.event.dom.client.ClickHandler;
  
  /**
   * Controller for retire screen
   * 
   * @author Will
   *
   */
  public class CourseAdminRetireController extends CourseAdminWithoutVersionController{
  		
  	/**
  	 * Override the intitailzeController method to use CourseAdminConfigurer 
  	 */
  	@Override
  	protected void initializeController() {
     		
  		super.cfg = GWT.create(CourseAdminRetireConfigurer.class);
  		
     		cfg.setState(DtoConstants.STATE_RETIRED.toUpperCase());
     		super.setDefaultModelId(cfg.getModelId());
     		super.registerModelsAndHandlers();
     		super.addStyleName("ks-course-admin");  	   		   		
      }
  	
  	/**
  	 * Override the getSaveButton to provide a new set of buttons for the admin screens
  	 */
  	@Override
  	public KSButton getSaveButton(){
  		KSButton saveButton =  new KSButton("Retire", new ClickHandler(){
              public void onClick(ClickEvent event) {
              	handleButtonClick(DtoConstants.STATE_RETIRED);            	
              }
          });
  		
  		return saveButton;
  	}
  				
  	public KSButton getCancelButton(){
  		KSButton button = new KSButton("Cancel", new ClickHandler(){
              public void onClick(ClickEvent event) {       
              	Application.navigate(AppLocations.Locations.VIEW_COURSE.getLocation());
              }
          });
  	
  		button.addStyleName("ks-button-spacing");
  		return button;
      }
  	
  	/**
  	 * This processes the save or activate button clicks
  	 * 
  	 * @param state The state to set on the course when saving course data.
  	 */
  	protected void handleButtonClick(final String state){
  		final SaveActionEvent saveActionEvent = new SaveActionEvent(false);
  
      	saveActionEvent.setActionCompleteCallback(new ActionCompleteCallback(){
  			@Override
  			public void onActionComplete(ActionEvent actionEvent) {
  				if (saveActionEvent.isSaveSuccessful()){
  	                final ViewContext viewContext = new ViewContext();
  	                viewContext.setId((String)cluProposalModel.get(CreditCourseConstants.ID));
  	                viewContext.setIdType(IdType.OBJECT_ID);											
  
  	                
  					CourseWorkflowActionList.setCourseState(viewContext.getId(), DtoConstants.STATE_RETIRED, new Callback<String>(){
  						@Override
  						public void exec(String result) {
  							if (result == null){
  								KSNotifier.add(new KSNotification("Course saved, but unable to set retire state.", false, true, 5000));
  							} else {
  								KSNotifier.show("Course saved and retired.");									
  								Application.navigate(AppLocations.Locations.VIEW_COURSE.getLocation(), viewContext);
  							}							
  						}
 					});							
 				}      
 			}
     	});
     	
    		CourseAdminRetireController.this.fireApplicationEvent(saveActionEvent);    		
 	}
 	
 	
 	/**
      * Override the setHeaderTitle to display proper header title for admin screens
      */
 	@Override
 	protected void setHeaderTitle(){
 		StringBuffer sb = new StringBuffer();
 		sb.append(cluProposalModel.get(cfg.getCourseTitlePath()));
 		sb.append(" (Retirement)");
 				
 		currentTitle = sb.toString();
 		
 		this.setContentTitle(currentTitle);
     	this.setName(currentTitle);
     	WindowTitleUtils.setContextTitle(currentTitle);		
     }
 
 	protected  BaseDataOrchestrationRpcServiceAsync getCourseProposalRpcService(){
     	return courseServiceAsync;
     }
     	
     public boolean startSectionRequired(){
     	//There is no start section for retire screen
     	return false;
     }
 
     @Override
 	public boolean isAuthorizationRequired() {
 		//FIXME: Need to add proper authorization checks for admin modify.
 		return false;
 	}
 
 	@Override
 	protected void progressiveEnableFields() {
 		//Does nothing, there are no progressive enabled fields on retire screens.
 	}
 	
 	/**
 	 * Override the getStateforSaveAction since the save action for retire course will change state to 
 	 * retired.  
 	 */
 	@Override
     protected String getStateforSaveAction(DataModel model){
     	return cfg.getState();
     }
     
 }