/*******************************************************************************
 * 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.scenegraph.tests;

import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;

import java.util.UUID;

import org.junit.Test;
import org.simantics.scenegraph.INode;
import org.simantics.scenegraph.ParentNode;
import org.simantics.scenegraph.g2d.G2DParentNode;
import org.simantics.scenegraph.g2d.G2DSceneGraph;
import org.simantics.scenegraph.g2d.nodes.DataNode;
import org.simantics.scenegraph.g2d.nodes.NavigationNode;


/**
 * @author Tuukka Lehtonen
 */
public class GetRootNodeTest {

    G2DSceneGraph root = new G2DSceneGraph();

    <T extends INode> T addNode(ParentNode<?> parent, String id, Class<T> clazz) {
        T node = parent.addNode(id, clazz);
        return node;
    }

    <T extends INode> T addNode(ParentNode<?> parent, Class<T> clazz) {
        return addNode(parent, UUID.randomUUID().toString(), clazz);
    }

    @Test
    public void testGetRootNode() throws Exception {
        NavigationNode nav = addNode(root, NavigationNode.class);
        DataNode data = addNode(root, DataNode.class);
        G2DParentNode elements = addNode(nav, G2DParentNode.class);
        G2DParentNode ghosts = addNode(nav, G2DParentNode.class);

        G2DParentNode e1 = addNode(elements, G2DParentNode.class);
        G2DParentNode e2 = addNode(elements, G2DParentNode.class);
        G2DParentNode e3 = addNode(elements, G2DParentNode.class);
        G2DParentNode e1_1 = addNode(e1, G2DParentNode.class);
        G2DParentNode e1_2 = addNode(e1, G2DParentNode.class);
        G2DParentNode e1_1_1 = addNode(e1_1, G2DParentNode.class);
        G2DParentNode e2_1 = addNode(e2, G2DParentNode.class);
        G2DParentNode e3_1 = addNode(e3, G2DParentNode.class);
        G2DParentNode e3_1_1 = addNode(e3_1, G2DParentNode.class);
        G2DParentNode e3_1_1_1 = addNode(e3_1_1, G2DParentNode.class);

        assertSame(e3_1_1_1.getRootNode(), root);
        assertSame(nav.getRootNode(), root);
        assertSame(e3_1.getRootNode(), root);
        assertSame(e3_1_1.getRootNode(), root);
        assertSame(e3_1.getRootNode(), root);
        assertSame(e2.getRootNode(), root);
        assertSame(e2_1.getRootNode(), root);
        assertSame(e1.getRootNode(), root);
        assertSame(e1_1_1.getRootNode(), root);
        assertSame(e1_1.getRootNode(), root);
        assertSame(e1_2.getRootNode(), root);
        assertSame(data.getRootNode(), root);
        assertSame(ghosts.getRootNode(), root);

        ghosts.remove();
        assertNull(ghosts.getRootNode());
        data.delete();
        assertNull(data.getRootNode());
        e1.remove();
        assertNull(e1.getRootNode());
        e2_1.remove();
        assertNull(e2_1.getRootNode());
        e2.remove();
        assertNull(e2.getRootNode());
        e3.remove();
        assertNull(e3_1_1_1.getRootNode());
        assertNull(e3_1_1.getRootNode());
        assertNull(e3_1.getRootNode());
        assertNull(e3.getRootNode());
    }

}