/*******************************************************************************
 * Copyright (c) 2013 Dirk Fauth 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:
 *    Dirk Fauth <dirk.fauth@gmail.com> - initial API and implementation
 *******************************************************************************/
package org.eclipse.nebula.widgets.nattable.reorder.event;

import java.util.Arrays;
import java.util.List;

import org.eclipse.nebula.widgets.nattable.layer.stack.DefaultBodyLayerStack;
import org.eclipse.nebula.widgets.nattable.reorder.RowReorderLayer;
import org.eclipse.nebula.widgets.nattable.reorder.command.MultiRowReorderCommand;
import org.eclipse.nebula.widgets.nattable.test.fixture.NatTableFixture;
import org.eclipse.nebula.widgets.nattable.test.fixture.layer.BaseRowReorderLayerFixture;
import org.eclipse.nebula.widgets.nattable.test.fixture.layer.DataLayerFixture;
import org.eclipse.nebula.widgets.nattable.test.fixture.layer.LayerListenerFixture;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

public class ReorderRowEventTest {
    private BaseRowReorderLayerFixture rowReorderLayer;

    @Before
    public void setUp() {
        this.rowReorderLayer = new BaseRowReorderLayerFixture(new DataLayerFixture());
    }

    @Test
    public void shouldThrowAReorderRowEvent() {
        LayerListenerFixture listenerFixture = new LayerListenerFixture();
        this.rowReorderLayer.addLayerListener(listenerFixture);
        this.rowReorderLayer.reorderRowPosition(3, 1);

        Assert.assertEquals(1, listenerFixture.getEventsCount());
        Assert.assertNotNull(listenerFixture
                .getReceivedEvent(RowReorderEvent.class));
    }

    @Test
    public void reorderEventMustPropagateToTheTop() throws Exception {
        DefaultBodyLayerStack underlyingLayer = new DefaultBodyLayerStack(
                new RowReorderLayer(new DataLayerFixture(10, 10, 100, 20)));
        NatTableFixture natTableFixture = new NatTableFixture(underlyingLayer);

        // Add listener
        LayerListenerFixture listenerFixture = new LayerListenerFixture();
        natTableFixture.addLayerListener(listenerFixture);

        Assert.assertEquals(10, natTableFixture.getRowCount());
        Assert.assertEquals(1, natTableFixture.getRowIndexByPosition(1));

        // Move to outside the visible range
        List<Integer> rowsToMove = Arrays.asList(1, 2, 3);
        int destinationPosition = 10;
        natTableFixture.doCommand(new MultiRowReorderCommand(natTableFixture,
                rowsToMove, destinationPosition));

        // Ensure that the event propagates to the top
        Assert.assertEquals(1, listenerFixture.getEventsCount());
        Assert.assertNotNull(listenerFixture
                .getReceivedEvent(RowReorderEvent.class));
        Assert.assertEquals(4, natTableFixture.getRowIndexByPosition(1));
    }
}