package ie.dcu.apps.ist.actions;

import ie.dcu.apps.ist.dialogs.ExportDialog;
import ie.dcu.apps.ist.export.imagemap.*;
import ie.dcu.segment.*;
import ie.dcu.swt.ImageConverter;

import java.awt.image.BufferedImage;
import java.io.*;
import java.util.List;
import java.util.logging.Level;


import org.eclipse.swt.program.Program;

/**
 * Export segmentation results as HTML image maps
 * 
 * @author Kevin McGuinness
 */
public class ExportImageMapAction extends AppAction{
	
	/**
	 * The file extension given to a this object when it is saved on a disk
	 */
	public static final String IMGMAP_EXTENSION = ".imgmap";
	
	public ExportImageMapAction(ActionManager m) {
		super(m);
	}

	@Override 
	public void run() { 
		SegmentationContext ctx = window.getContext();
		List<SegmentationMask> masks = ctx.getSegmentationMasks();
		if (ctx.hasSegmentationMasks()) {
			
			// Get options from user
			ExportDialog dialog = new ExportDialog(window.getShell());
			ExportDialog.Result result = dialog.open();
			if (result != null) {
				// Grab image and mask
				
					BufferedImage image = ImageConverter.convert(ctx.getImageData());
					// Setup exporter
					Exporter exporter = new Exporter(image, ctx);
					exporter.setEffect(result.effect);
					exporter.setHtmlFile(result.html);
					
					// Taking html file name and making the same as filename of imagemap
					int dotIndex = result.zipFile.indexOf('.');
					String zipFile = result.zipFile.substring(0, dotIndex); 
					System.out.println("Zip file name is : "+zipFile);
					exporter.setZipFile(zipFile+IMGMAP_EXTENSION);
					
					exporter.setImageFile(result.image);
					//exporter.setObjectLink(result.link);
					exporter.setExportShape(result.shape);
					//exporter.setObjectDescription(result.description);
					
					// Export
					try {
						exporter.export(result.folder,result.open,result.exportFolder,masks);
					} catch (IOException e) {
						handleError(e);
						return;
					} catch (ExportException e) {
						handleError(e);
						return;
					} 
				// for opening the image after saving as ImageMap
				if (result.open) {
					File file = new File(result.folder, result.html);
					Program program = Program.findProgram(".html");
					if (program != null) {
						program.execute(file.getAbsolutePath());
					}
				}
			}
		}
	}
	
	private void handleError(Exception e) {
		log(Level.WARNING, "Error exporting view as HTML image map", e);
		
		// Show error dialog
		error("Error exporting view as HTML image map: %s",  
				e.getLocalizedMessage());
		
		// Set status message
		status(Error, "Error exporting view as HTML image map");
	}
}