/*******************************************************************************

 * Copyright (c) 2011 IBM Corporation 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:

 * IBM Corporation - initial API and implementation

 *******************************************************************************/

package org.eclipse.team.tests.ccvs.ui;

import org.eclipse.core.runtime.CoreException;

import org.eclipse.jface.util.IPropertyChangeListener;

import org.eclipse.jface.util.PropertyChangeEvent;

import org.eclipse.jface.viewers.Viewer;

import org.eclipse.jface.viewers.ViewerSorter;

import org.eclipse.swt.SWT;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Item;

import org.eclipse.swt.widgets.Widget;

import org.eclipse.team.core.TeamException;

import org.eclipse.team.core.synchronize.SyncInfoSet;

import org.eclipse.team.internal.ccvs.core.mapping.CVSActiveChangeSet;

import org.eclipse.team.internal.ui.synchronize.ChangeSetCapability;

import org.eclipse.team.internal.ui.synchronize.ChangeSetDiffNode;

import org.eclipse.team.internal.ui.synchronize.ChangeSetModelProvider;

import org.eclipse.team.internal.ui.synchronize.ChangeSetModelSorter;

import org.eclipse.team.internal.ui.synchronize.SynchronizeModelElementSorter;

import org.eclipse.team.internal.ui.synchronize.SynchronizePageConfiguration;

import org.eclipse.team.internal.ui.synchronize.TreeViewerAdvisor;

import org.eclipse.team.internal.ui.synchronize.UnchangedResourceModelElement;

import org.eclipse.team.tests.ccvs.core.EclipseTest;

import org.eclipse.team.ui.synchronize.ISynchronizePage;

import org.eclipse.team.ui.synchronize.ISynchronizePageConfiguration;

import org.eclipse.team.ui.synchronize.ISynchronizePageSite;

import org.eclipse.ui.PartInitException;

import org.eclipse.ui.PlatformUI;

public class PatchTreeTest extends EclipseTest {

	private SynchronizePageConfiguration getMyConfiguration(final Viewer viewer){

		SynchronizePageConfiguration conf = new SynchronizePageConfiguration(null);

		conf.setPage(new ISynchronizePage() {

			public void init(ISynchronizePageSite site) throws PartInitException {}

			public Viewer getViewer() {

				return viewer;

			}

			public boolean aboutToChangeProperty(

					ISynchronizePageConfiguration configuration, String key,

					Object newValue) {return false;}

		});

		return conf;

	}	

	private class MyModelProvider extends ChangeSetModelProvider implements IPropertyChangeListener{

		public ChangeSetCapability getChangeSetCapability() {

			return new ChangeSetCapability() {

			};

		}

		public MyModelProvider(final Viewer viewer) {

			super(getMyConfiguration(viewer), new SyncInfoSet(), "sampleProviderId");

			addPropertyChangeListener(this);

		}

		public void propertyChange(PropertyChangeEvent event) {

			// nothing to do

		}

	}

	private class MyTreeViewer extends TreeViewerAdvisor.NavigableCheckboxTreeViewer {

		public MyTreeViewer(Composite parent, int style) {

			super(parent, style);

		}

		public void testInternalAdd(Object[] childElements){

			internalAdd(this.getTree(), null, childElements);

		}

		public Item[] testGetChildren(Widget widget){

			return this.getChildren(widget);

		}

		public void init(){

			ChangeSetModelProvider provider = new MyModelProvider(this); 

			provider.setViewerSorter(new SynchronizeModelElementSorter());

			ChangeSetModelSorter sorter = new ChangeSetModelSorter(provider, 0);

			setSorter(sorter);

		}

	}

	public void testChangeSetModelSorter() throws CoreException{

		MyTreeViewer tree = new MyTreeViewer(new Composite(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), 0)

		, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);

		tree.init();

		ViewerSorter sorter = tree.getSorter();

		UnchangedResourceModelElement element = new UnchangedResourceModelElement(null, getUniqueTestProject("z"));

		ChangeSetDiffNode nodeA = new ChangeSetDiffNode(null, new CVSActiveChangeSet(null, "a"));

		ChangeSetDiffNode nodeB = new ChangeSetDiffNode(null, new CVSActiveChangeSet(null, "b"));

		ChangeSetDiffNode nodeC = new ChangeSetDiffNode(null, new CVSActiveChangeSet(null, "c"));

		Object[] elements = {nodeB, nodeC, element, nodeA};

		sorter.sort(tree, elements);

		Object firstElement = elements[0];

		for(int i=0; i<elements.length; i++){

			assertTrue("Comparator not transistant, element " + firstElement + " should be smaller than " + elements[i], sorter.compare(tree, firstElement, elements[i])<=0);

		}

	}

	public void testDuplicatedElementsInPatchTree() throws TeamException, CoreException {

		MyTreeViewer tree = new MyTreeViewer(new Composite(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), 0)

				, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);

		tree.init();

		UnchangedResourceModelElement element = new UnchangedResourceModelElement(null, getUniqueTestProject("z"));

		ChangeSetDiffNode nodeA = new ChangeSetDiffNode(null, new CVSActiveChangeSet(null, "a"));

		ChangeSetDiffNode nodeB = new ChangeSetDiffNode(null, new CVSActiveChangeSet(null, "b"));

		ChangeSetDiffNode nodeC = new ChangeSetDiffNode(null, new CVSActiveChangeSet(null, "c"));

		ChangeSetDiffNode nodeD = new ChangeSetDiffNode(null, new CVSActiveChangeSet(null, "d"));

		Object children[] = {nodeC, nodeB, element, nodeA};

		tree.testInternalAdd(children);

		Item[] treeChildren = tree.testGetChildren(tree.getTree());

		Object children1[] = {nodeD, element, nodeA, nodeB};

		tree.testInternalAdd(children1);

		treeChildren = tree.testGetChildren(tree.getTree());

		for(int i=0; i<treeChildren.length-1; i++){

			Object tmpElement = treeChildren[i].getData();

			for(int j=i+1; j<treeChildren.length; j++){

				assertNotSame("Duplicated element in tree " + tmpElement, tmpElement, treeChildren[j].getData());

			}

		}

	}

}