package eu.simstadt.nf4j;

import java.io.File;
import java.util.ArrayList;
import netscape.javascript.JSObject;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.Geometry;
import eu.simstadt.nf4j.async.AsyncExportJob;
import eu.simstadt.nf4j.async.Coord;
import eu.simstadt.nf4j.async.ExportJobDescription;
import eu.simstadt.nf4j.async.HTTPConnection;
import eu.simstadt.nf4j.async.JobStatusEvent;
import eu.simstadt.nf4j.async.JobStatusListener;
import eu.simstadt.nf4j.async.Layer;


/**
 * This class contains client oriented export job tests. It will send an export job and listens to status updates. Every
 * of the subsequent status' LOCAL, SENT, PENDING, RUNNING, FINISHED and DOWNLOAD have to be signaled to this test
 * class.
 * 
 * @author Marcel Bruse
 */

//TODO: DRY with SuccessfulExportJob
public class ExportJobFromJavaFXRegionChooser implements JobStatusListener
{

	public AsyncExportJob job;
	private JSObject novaFactoryOpenLayer;

	public void processJob(Geometry poly, String productName, JSObject novaFactoryOpenLayer) throws InterruptedException {
		this.novaFactoryOpenLayer = novaFactoryOpenLayer;
		ExportJobDescription description = ExportJobDescription.getDefaultDescriptor();
		description.setInitiator("2758");
		description.setAccount("Bruse");
		//		description.setProduct("WU3");
		description.setProduct(productName);
		description.setJobnumber("Bruse_0815");

		//FIXME: Zipped GMLs coming from nF don't have any defined srsName

		ArrayList<Coord> regionPolygon = new ArrayList<>();

		for (Coordinate point : poly.getCoordinates()) {
			regionPolygon.add(new Coord(point.y, point.x));
		}

		description.setRegionPolygon(regionPolygon);

		Layer layer = Layer.getDefaultLayer();
		layer.setProduct(productName);
		layer.setName("GML");
		description.addLayer(layer);

		job = new AsyncExportJob(description, new HTTPConnection("193.196.136.164"));
		job.addJobStatusListener(this);

		try {
			job.send();
		} catch (FailedTransmissionException ex) {
			ex.printStackTrace();
		} catch (InvalidJobDescriptorException ex) {
			ex.printStackTrace();
		}
	}

	@Override
	public void jobStatusChanged(JobStatusEvent event) {
		JobStatus status = (JobStatus) event.getSource();
		System.out.println(status);
		if (status == JobStatus.LOCAL) {
			novaFactoryOpenLayer.call("updateStatus", "REQUEST HAS BEEN PREPARED");
		} else if (status == JobStatus.SENT) {
			novaFactoryOpenLayer.call("updateStatus", "REQUEST HAS BEEN SENT");
		} else if (status == JobStatus.PENDING) {
			novaFactoryOpenLayer.call("updateStatus", "PENDING");
		} else if (status == JobStatus.RUNNING) {
			novaFactoryOpenLayer.call("updateStatus", "SERVER IS BUSY");
		} else if (status == JobStatus.FINISHED) {
			try {
				novaFactoryOpenLayer.call("updateStatus", "SERVER IS DONE");
				job.downloadResult();
			} catch (FailedTransmissionException ex) {
				ex.printStackTrace();
			}
		} else if (status == JobStatus.DOWNLOAD) {
			try {
				File file = job.getResult();
				novaFactoryOpenLayer.call("updateStatus", "DOWNLOADED AS ZIP");
				novaFactoryOpenLayer.call("selectSaveFile", file.toString());
				//				System.out.println("CityGML at " + file.getAbsolutePath());
				//TODO: Call downloadFinished if FAILED
				novaFactoryOpenLayer.call("downloadFinished");
			} catch (FailedTransmissionException ex) {
				ex.printStackTrace();
			}
		}
	}

}