/*******************************************************************************
 * Copyright (c) 2007- VTT Technical Research Centre of Finland.
 * 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.diagram;

import java.awt.geom.AffineTransform;

import org.simantics.db.AsyncReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.procedure.AsyncProcedure;
import org.simantics.diagram.adapter.ElementFactory;
import org.simantics.diagram.synchronization.graph.BasicResources;
import org.simantics.g2d.canvas.ICanvasContext;
import org.simantics.g2d.diagram.IDiagram;
import org.simantics.g2d.element.ElementClass;
import org.simantics.g2d.element.ElementUtils;
import org.simantics.g2d.element.IElement;
import org.simantics.g2d.element.handler.impl.StaticObjectAdapter;
import org.simantics.spreadsheet.graph.GraphBackend;
import org.simantics.spreadsheet.graph.SpreadsheetResource;
import org.simantics.spreadsheet.ui.SimpleContainerTableModel;


/**
 * TODO: recognize experiment disposal and reset monitor contents at that point
 */
public class SheetFactory implements ElementFactory {
    
    public static ElementClass createSheetClass(Resource elementType) {
        return SheetClass.create(null, null, null, 1.0, 1.0, new StaticObjectAdapter(elementType));
    }
    
    @Override
    public void getClass(AsyncReadGraph graph, ICanvasContext canvas, IDiagram diagram,
            Resource resource, AsyncProcedure<ElementClass> procedure) {
        procedure.execute(graph, createSheetClass(graph.getSession().getService(SpreadsheetResource.class).SpreadsheetElement));
    }

    @Override
    public void create(AsyncReadGraph graph, ICanvasContext canvas, IDiagram diagram,
            Resource elementType, AsyncProcedure<ElementClass> procedure) {
        procedure.execute(graph, createSheetClass(graph.getSession().getService(SpreadsheetResource.class).SpreadsheetElement));
    }

    @Override
    public void load(AsyncReadGraph graph, ICanvasContext canvas, IDiagram diagram,
            Resource resource, final IElement element) {
        
        SpreadsheetResource sr = graph.getService(SpreadsheetResource.class);
        
        AffineTransform at = new AffineTransform();
        ElementUtils.setTransform(element, at);
        
        graph.forPossibleObject(resource, sr.HasSheet, new AsyncProcedure<Resource>() {

            @Override
            public void exception(AsyncReadGraph graph, Throwable throwable) {
                throwable.printStackTrace();
            }

            @Override
            public void execute(AsyncReadGraph graph, Resource sheet) {

                GraphBackend backend = new GraphBackend(graph.getSession());
                
                SimpleContainerTableModel tableModel = new SimpleContainerTableModel(backend);
                
                element.setHint(SheetClass.KEY_MODEL, tableModel);
                element.setHint(SheetClass.KEY_TABLE_MODEL, tableModel);

                backend.load(sheet, tableModel);
                
            }
            
        });
        
    }
    

}