package org.gcube.portlets.user.geoportaldataviewer.client.ui.cms.project.relation;

import org.gcube.application.geoportalcommon.shared.geoportal.project.ProjectDV;
import org.gcube.portlets.user.geoportaldataviewer.client.GeoportalDataViewer;

import com.google.gwt.core.client.GWT;
import com.google.gwt.event.shared.HandlerManager;
import com.google.gwt.user.client.ui.RootPanel;

public class TimelineManagerStatus {

	private ProjectDV showingProject;
	private HandlerManager applicationBus;

	public TimelineManagerStatus(HandlerManager applicationBus) {
		this.applicationBus = applicationBus;
	}

	protected TimelineRelationPanel getTimelineOf(ProjectDV theProject) {

		if (showingProject == null) {
			GWT.log("Displaying new Timeline of " + theProject);
			this.showingProject = theProject;
			return new TimelineRelationPanel(applicationBus, theProject);
		} else {

			boolean c1 = showingProject.getId().compareTo(theProject.getId()) == 0;
			boolean c2 = showingProject.getProfileID().compareTo(theProject.getProfileID()) == 0;

			if (!c1 || !c2) {
				GWT.log("Displaying Timeline of " + theProject);
				this.showingProject = theProject;
				return new TimelineRelationPanel(applicationBus, theProject);
			}

			GWT.log("Skipping already displayed Timeline of " + theProject);
			return null;

		}

	}

	public void showTimelineProjectRelations(ProjectDV theProject) {
		GWT.log("Showing project relations for: " + theProject);

		TimelineRelationPanel timeline = getTimelineOf(theProject);
		if (timeline != null) {
			RootPanel.get(GeoportalDataViewer.DIV_TIMELINE_DATA).clear();
			RootPanel.get(GeoportalDataViewer.DIV_TIMELINE_DATA).setVisible(true);
			RootPanel.get(GeoportalDataViewer.DIV_TIMELINE_DATA).add(timeline);
		}
	}

	public void hideTimelineProjectRelations() {
		GWT.log("hideTimelineProjectRelations");
		RootPanel.get(GeoportalDataViewer.DIV_TIMELINE_DATA).setVisible(false);
		RootPanel.get(GeoportalDataViewer.DIV_TIMELINE_DATA).clear();
	}

}