package org.gcube.portlets.user.geoportaldataentry.client.ui.edit;

import java.util.List;

import org.gcube.application.geoportaldatamapper.shared.MetaDataProfileBeanExt;
import org.gcube.application.geoportaldatamapper.shared.ProjectEdit;
import org.gcube.portlets.user.geoportaldataentry.client.ConstantsGeoPortalDataEntryApp;
import org.gcube.portlets.user.geoportaldataentry.client.GeoportalDataEntryServiceAsync;
import org.gcube.portlets.user.geoportaldataentry.client.ui.utils.LoaderIcon;
import org.gcube.portlets.widgets.mpformbuilder.shared.metadata.MetadataFieldWrapper;

import com.github.gwtbootstrap.client.ui.Alert;
import com.github.gwtbootstrap.client.ui.ControlGroup;
import com.github.gwtbootstrap.client.ui.ListBox;
import com.github.gwtbootstrap.client.ui.constants.AlertType;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.shared.HandlerManager;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.Widget;

public class UpdateRecord extends Composite {

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

	interface UpdateRecordUiBinder extends UiBinder<Widget, UpdateRecord> {
	}

	@UiField
	ListBox listBoxSections;

	@UiField
	HTMLPanel htmlSectionContent;

	@UiField
	HTMLPanel alertHTMLPanel;
	
	@UiField
	ControlGroup controlsControlGroup;

	private LoaderIcon loaderProjectSections = new LoaderIcon("Loading Project sections..., please wait");

	public UpdateRecord(HandlerManager editorManagerBus, String profileID, String projectID) {
		initWidget(uiBinder.createAndBindUi(this));

		alertHTMLPanel.add(loaderProjectSections);

		GeoportalDataEntryServiceAsync.Util.getInstance().getProjectEdit(profileID, projectID,
				new AsyncCallback<ProjectEdit>() {

					@Override
					public void onSuccess(ProjectEdit result) {

						try {
							alertHTMLPanel.remove(loaderProjectSections);
						} catch (Exception e) {

						}

						for (final MetaDataProfileBeanExt profileBean : result.getTheProfileBeans()) {

							listBoxSections.addItem(profileBean.getType(), profileBean.getType());

							listBoxSections.addChangeHandler(new ChangeHandler() {

								@Override
								public void onChange(ChangeEvent event) {
									controlsControlGroup.setVisible(true);
									htmlSectionContent.clear();
									List<MetadataFieldWrapper> listMeta = profileBean.getMetadataFields();
									if (listMeta != null && listMeta.size() > 0) {
										MetadataFieldWrapper firstMeta = listMeta.get(0);
										FlowPanel fp = new FlowPanel();
										fp.add(new HTML(firstMeta.getFieldName()));
										fp.add(new HTML(firstMeta.getCurrentValue()));
										htmlSectionContent.add(fp);
									}

								}
							});
						}

					}

					@Override
					public void onFailure(Throwable caught) {
						alertHTMLPanel.remove(loaderProjectSections);

						String errorMsg = caught.getMessage();
						Alert alert = new Alert(errorMsg, AlertType.ERROR);
						alert.setClose(false);
						try {
							alertHTMLPanel.remove(loaderProjectSections);
						} catch (Exception e) {

						}
						alertHTMLPanel.add(alert);
						Window.alert(errorMsg);

					}
				});
	}

}