package org.simantics.district.selection.ui.handlers;

import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.e4.core.di.annotations.CanExecute;
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.ui.services.IServiceConstants;
import org.eclipse.e4.ui.workbench.IWorkbench;
import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.widgets.Shell;
import org.simantics.db.Resource;
import org.simantics.db.exception.DatabaseException;
import org.simantics.district.selection.ui.parts.EditSelectorDialog;
import org.simantics.utils.ui.AdaptionUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class CreateNewElementSelector {

	private static final Logger LOGGER = LoggerFactory.getLogger(CreateNewElementSelector.class);

	@CanExecute
	public boolean canExecute(ESelectionService selectionService) {
		return true;
	}
	
	@Execute
	public void createNewElementSelector(IEclipseContext context, IWorkbench workbench) {
		Object currentSelection = context.get(IServiceConstants.ACTIVE_SELECTION);
		
		Shell shell = context.getActive(Shell.class);
		EditSelectorDialog dialog = new EditSelectorDialog(shell, null, AdaptionUtils.adaptToCollection(currentSelection, Resource.class));
		LOGGER.debug("Opening dialog");
		int result = dialog.open();
		LOGGER.debug("Dialog closed with result code " + result);
		if (result == Window.OK) {
			try {
				dialog.writeSelection();
			} catch (DatabaseException e) {
				LOGGER.error("Writing new element selection failed", e);
			}
		}
	}
}