/*******************************************************************************
 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
 * in Industry THTH ry.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.modeling.ui.diagramEditor;

import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.simantics.db.ReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.common.request.PossibleIndexRoot;
import org.simantics.db.common.request.ReadRequest;
import org.simantics.db.exception.DatabaseException;
import org.simantics.db.layer0.variable.RVI;
import org.simantics.db.layer0.variable.Variable;
import org.simantics.db.layer0.variable.Variables;
import org.simantics.modeling.ui.Activator;
import org.simantics.spreadsheet.resource.SpreadsheetResource;
import org.simantics.ui.SimanticsUI;
import org.simantics.ui.workbench.ResourceEditorInput2;
import org.simantics.ui.workbench.editor.AbstractResourceEditorAdapter;
import org.simantics.utils.ui.workbench.WorkbenchUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class OpenSheetAdapter extends AbstractResourceEditorAdapter {
    private static final Logger LOGGER = LoggerFactory.getLogger(OpenSheetAdapter.class);

    private static final String EDITOR_ID = "org.simantics.spreadsheet.ui.editor2";

    public OpenSheetAdapter() {
        super("Spreadsheet Editor", Activator.COMPOSITE_ICON);
    }

    protected String getEditorId() {
        return EDITOR_ID;
    }

    @Override
    public boolean canHandle(ReadGraph g, Resource r) throws DatabaseException {
        return g.isInstanceOf(r, SpreadsheetResource.getInstance(g).Book);
    }

    @Override
    public void openEditor(final Resource r) throws Exception {
        SimanticsUI.getSession().asyncRequest(new ReadRequest() {
            @Override
            public void run(ReadGraph g) throws DatabaseException {

                Variable variable = Variables.getVariable(g, r);
                final Resource model = g.syncRequest(new PossibleIndexRoot(r));
                final RVI rvi = variable.getPossibleRVI(g);
                
                PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            String editorId = getEditorId();
                            WorkbenchUtils.openEditor(editorId, new ResourceEditorInput2(editorId, r, model, rvi));
                        } catch (PartInitException e) {
                        	LOGGER.error("Failed to open the spreadsheet editor.", e);
                        }
                    }
                });
            }
        });
    }

}