/*******************************************************************************
 * Copyright (c) 2007 VTT Technical Research Centre of Finland and others.
 * 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 fi.vtt.simantics.processeditor.monitors;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.simantics.db.Graph;
import org.simantics.db.Resource;
import org.simantics.layer0.utils.EntityFactory;
import org.simantics.layer0.utils.IEntity;
import org.simantics.layer0.utils.ResourceDebugUtils;

import fi.vtt.simantics.processeditor.common.PathUtils;


public class ResourcePathPropertyProvider implements MonitorTextProvider {
	
	private Resource instance;
	private List<Resource> properties = new ArrayList<Resource>();
	private List<String> names = new ArrayList<String>();
	private List<String> units = new ArrayList<String>();
	String name;
	
	private MonitorTextProvider provider = new ObjectPropertyProvider();
	
	public void setSource(IEntity instance) {
		this.instance = instance.getResource();
		properties.clear();
		names.clear();
		//units.clear();
		List<List<Resource>> paths = PathContainer.getInstance().getPaths(instance);
		if (paths != null) {
			for (List<Resource> path : paths) {
				IEntity source = PathUtils.findSimilar(path, instance);
				if (source != null)
					properties.add(source.getResource());
			}
		}
		Collection<IEntity> types = instance.getTypes();
		name = ResourceDebugUtils.getReadableNameForEntity(types.iterator().next());
		for (Resource p : properties) {
			names.add(ResourceDebugUtils.getReadableNameForEntity(EntityFactory.create(instance.getGraph(),p)));
//			if (p.isInstanceOf(Builtins.Double)) {
//				typeResources = p.getRelatedResources(Builtins.InstanceOf);
//				String name = PropertyUtils.getScalarStringProperty(typeResources[0],Builtins.HasName);
//				Property property = new Property(p);
//				String abbr = property.getUnitAbbreviation();
//				names.add(name);
//				if (abbr != null)
//					units.add(abbr);
//				else
//					units.add("");
//				//titles.add(name + " " + PropertyUtils.getDoubleValue(p)[0] + " " + abbr);
//			}
		}
		provider.setSource(instance);
	}
	
	public ArrayList<String> getTexts(Graph graph) {
		if (properties.size() == 0)
			return provider.getTexts(graph);
		ArrayList<String> titles = new ArrayList<String>();
		if (instance == null)
			return titles;
		
		titles.add(name);
		for (int i = 0; i < properties.size(); i++) {
			//titles.add(names.get(i) + " " + Double.toString(PropertyUtils.getDoubleValue(properties.get(i))[0]) + " " + units.get(i));
			// FIXME : check value
			titles.add(names.get(i) + " " + EntityFactory.create(graph,properties.get(i)).toProperty().getValue());
		}

		return titles;
	}
	

}