/*******************************************************************************
 * 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.spreadsheet.graph.creator;

import java.util.Collection;
import java.util.Collections;

import org.simantics.databoard.Bindings;
import org.simantics.databoard.adapter.AdaptException;
import org.simantics.databoard.binding.Binding;
import org.simantics.db.Resource;
import org.simantics.db.WriteGraph;
import org.simantics.db.exception.DatabaseException;
import org.simantics.layer0.Layer0;
import org.simantics.spreadsheet.ModelCellManager.CellCreationData;
import org.simantics.spreadsheet.common.cell.Parsers;
import org.simantics.spreadsheet.graph.request.Columns;
import org.simantics.spreadsheet.graph.request.Rows;
import org.simantics.spreadsheet.graph.request.RowsColumnsIndex;

abstract public class CellCreatorBase implements GraphCellCreator {

    final protected Resource realization;

    public CellCreatorBase(Resource realization) {
        this.realization = realization;
    }

    protected <T> T getProperty(CellCreationData datum, String property, Binding binding) throws DatabaseException {
    
    	try {
			return (T)datum.properties.get(Parsers.EXPRESSION_PROPERTY).getValue(Bindings.STRING);
		} catch (AdaptException e) {
			throw new DatabaseException(e);
		}
    	
    }
    
    public void create(WriteGraph graph, CellCreationData cell) throws DatabaseException {

        create(graph, Collections.singleton(cell));

    }

    public void create(WriteGraph graph, Collection<CellCreationData> data) throws DatabaseException {
        Layer0 l0 = Layer0.getInstance(graph);

        int maxRow = 0;
        int maxColumn = 0;
        for(CellCreationData datum : data) {
            maxRow = Math.max(maxRow, datum.row);
            maxColumn = Math.max(maxColumn, datum.column);
        }

        Resource spreadsheet = graph.getPossibleObject(realization, l0.Represents);

        RowsColumnsIndex rowIndex = graph.syncRequest(new Rows(spreadsheet));
        RowsColumnsIndex columnIndex = graph.syncRequest(new Columns(spreadsheet));
        rowIndex = rowIndex.copy();
        columnIndex = columnIndex.copy();
        rowIndex.ensureIndex(graph, maxRow);
        columnIndex.ensureIndex(graph, maxColumn);

        create(graph, rowIndex, columnIndex, data);

    }

}