package org.kuali.student.lum.lu.ui.main.client.configuration;

 import java.util.Arrays;

 import java.util.List;

 import java.util.Map;

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

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

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

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

 import org.kuali.student.common.ui.client.service.ServerPropertiesRpcService;

 import org.kuali.student.common.ui.client.service.ServerPropertiesRpcServiceAsync;

 import com.google.gwt.core.client.GWT;

 import com.google.gwt.uibinder.client.UiBinder;

 import com.google.gwt.uibinder.client.UiField;

 import com.google.gwt.user.client.ui.Label;

 import com.google.gwt.user.client.ui.Widget;

 public class AcknowledgeView extends ViewComposite{

         private static AcknowledgeUiBinder uiBinder = GWT.create(AcknowledgeUiBinder.class);

         interface AcknowledgeUiBinder extends UiBinder<Widget, AcknowledgeView> {

         }

         @UiField

         Label verLabel;

         private ServerPropertiesRpcServiceAsync serverPropertiesRpcService = GWT.create(ServerPropertiesRpcService.class);

         private static final String APP_VERSION                = "ks.application.version"; 

         public AcknowledgeView(Controller controller, Enum<?> viewType) {

                 super(controller, "Acknowledgements", viewType);

             this.initWidget(uiBinder.createAndBindUi(this));

         }

         @Override

         public void beforeShow(final Callback<Boolean> onReadyCallback) {

                 if(verLabel.getText().isEmpty()){

                         List<String> serverPropertyList = Arrays.asList(APP_VERSION);

                 serverPropertiesRpcService.get(serverPropertyList, new KSAsyncCallback<Map<String,String>>() {

                     public void handleFailure(Throwable caught) {

                             //ignoring, we'll use the default

                     }

                     public void onSuccess(Map<String,String> result) {

                         GWT.log("ServerProperties fetched: "+result.toString(), null);

                         if(result != null){

                             String appVersion                = result.get(APP_VERSION);

                             verLabel.setText("Version: " + appVersion);

                         }

                         onReadyCallback.exec(true);

                     }

                 });

                 }

                 else{

                         onReadyCallback.exec(true);

                 }

         }

 }