/*******************************************************************************
 * Copyright (c) 2005-2008 Polarion Software.
 * 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:
 *    Alexander Gurov (Polarion Software) - initial API and implementation
 *******************************************************************************/

package org.eclipse.team.svn.ui.action.remote;

import org.eclipse.jface.action.IAction;
import org.eclipse.team.svn.core.resource.IRepositoryResource;
import org.eclipse.team.svn.ui.SVNTeamUIPlugin;
import org.eclipse.team.svn.ui.composite.BranchTagSelectionComposite;
import org.eclipse.team.svn.ui.dialog.DefaultDialog;
import org.eclipse.team.svn.ui.panel.remote.CompareBranchTagPanel;
import org.eclipse.team.svn.ui.preferences.SVNTeamPreferences;

/**
 * Compare with branch /tag action implementation
 * 
 * @author Alexander Gurov
 */
public class CompareWithBranchTagAction extends CompareAction {
	protected int type;
	
	public CompareWithBranchTagAction(int type) {
		super();
		this.type = type;
	}
	
	public boolean isEnabled() {
		if (super.isEnabled()) {
	        IRepositoryResource first = this.getSelectedRepositoryResources()[0];
			return first.getRepositoryLocation().isStructureEnabled() && SVNTeamPreferences.getRepositoryBoolean(SVNTeamUIPlugin.instance().getPreferenceStore(), SVNTeamPreferences.BRANCH_TAG_CONSIDER_STRUCTURE_NAME);
		}
		return false;
	}

	public void runImpl(IAction action) {
        IRepositoryResource first = this.getSelectedRepositoryResources()[0];
        IRepositoryResource[] branchTagResources = BranchTagSelectionComposite.calculateBranchTagResources(first, this.type);
        if (branchTagResources != null) {
    		CompareBranchTagPanel panel = new CompareBranchTagPanel(first, this.type, branchTagResources);
    		DefaultDialog dlg = new DefaultDialog(this.getShell(), panel);
    		if (dlg.open() == 0 && panel.getResourceToCompareWith() != null){
    			this.doCompare(first, panel.getResourceToCompareWith());
    		}	
        }
	}

}