/*******************************************************************************
 * 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.db.tests.regression.bugs;

import org.junit.Test;
import org.simantics.db.Resource;
import org.simantics.db.Session;
import org.simantics.db.WriteGraph;
import org.simantics.db.common.request.WriteRequest;
import org.simantics.db.exception.DatabaseException;
import org.simantics.db.exception.ImmutableException;
import org.simantics.db.service.ClusterControl;
import org.simantics.db.service.XSupport;
import org.simantics.db.testing.cases.FreshDatabaseTest;
import org.simantics.db.testing.common.TestBase;
import org.simantics.layer0.Layer0;

/**
 * Tests that commit which changes only meta data will create revision.  
 */
public class Issue3422Test1 extends FreshDatabaseTest {
    private Resource testRoot;
	@Test
    public void test() throws DatabaseException {
        Session session = getSession();
        session.syncRequest(new Init());
        session.syncRequest(new Modify());
    }
    class Init extends WriteRequest {
        @Override
        public void perform(WriteGraph g) throws DatabaseException {
            ClusterControl cc = (ClusterControl)g.getService(ClusterControl.class);
            cc.collectClusters(Integer.MAX_VALUE);
            int nClusters = cc.flushClusters(); 
            Layer0 l0 = Layer0.getInstance(g);
            g.flushCluster(); // Starts new cluster.
            Resource rl = g.getResource(TestBase.ROOT_LIBRARY_URI);
            testRoot = g.newResource();
            g.claim(testRoot, l0.InstanceOf, l0.Library);
            g.claim(rl, l0.ConsistsOf, testRoot);
            XSupport xs = (XSupport)g.getService(XSupport.class);
            assertFalse("GetImmutable did not work.", xs.getImmutable(testRoot));
            xs.setImmutable(testRoot, true);
            assertTrue("SetImmutable did not work.", xs.getImmutable(testRoot));
            cc.collectClusters(Integer.MAX_VALUE);
            int nClusters2 = cc.flushClusters(); 
            assertTrue("Could not relase clusters.", nClusters + 1 == nClusters2);
        }
    }
    class Modify extends WriteRequest {
        @Override
        public void perform(WriteGraph g) throws DatabaseException {
            ClusterControl cc = (ClusterControl)g.getService(ClusterControl.class);
            cc.collectClusters(Integer.MAX_VALUE);
            int nClusters = cc.flushClusters();
            System.out.println("clusters count=" + nClusters);
            Layer0 l0 = Layer0.getInstance(getSession());
            XSupport xs = (XSupport)g.getService(XSupport.class);
            assertTrue("SetImmutable did not work.", xs.getImmutable(testRoot));
            try { 
                g.claim(testRoot, l0.InstanceOf, l0.Relation);
            } catch (ImmutableException e) { 
                return;
            }
            fail("Immutable check did not work.");
        }
    }
}