/*******************************************************************************
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 *
 *******************************************************************************/

package com.liferay.ide.project.core.library;

import com.liferay.ide.core.util.StringPool;
import com.liferay.ide.project.core.SDKClasspathContainer;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.jdt.core.IAccessRule;
import org.eclipse.jdt.core.IClasspathAttribute;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jst.common.project.facet.core.libprov.LibraryProviderOperation;
import org.eclipse.jst.common.project.facet.core.libprov.LibraryProviderOperationConfig;
import org.eclipse.jst.j2ee.classpathdep.IClasspathDependencyConstants;
import org.eclipse.wst.common.project.facet.core.IFacetedProjectBase;

/**
 * @author Greg Amerson
 */
public class SDKClasspathContainerInstallOperation extends LibraryProviderOperation
{

    public SDKClasspathContainerInstallOperation()
    {
        super();
    }

    @Override
    public void execute( LibraryProviderOperationConfig config, IProgressMonitor monitor ) throws CoreException
    {
        IFacetedProjectBase facetedProject = config.getFacetedProject();

        IProject project = facetedProject.getProject();

        IJavaProject javaProject = JavaCore.create( project );

        IPath containerPath = getClasspathContainerPath();

        // IDE-413 check to make sure that the containerPath doesn't already existing.

        IClasspathEntry[] entries = javaProject.getRawClasspath();

        for( IClasspathEntry entry : entries )
        {
            if( entry.getPath().equals( containerPath ) )
            {
                return;
            }
        }

        IAccessRule[] accessRules = new IAccessRule[] {};

        IClasspathAttribute[] attributes =
            new IClasspathAttribute[] { JavaCore.newClasspathAttribute(
                IClasspathDependencyConstants.CLASSPATH_COMPONENT_NON_DEPENDENCY, StringPool.EMPTY ) };

        IClasspathEntry newEntry = JavaCore.newContainerEntry( containerPath, accessRules, attributes, false );

        IClasspathEntry[] newEntries = new IClasspathEntry[entries.length + 1];

        System.arraycopy( entries, 0, newEntries, 0, entries.length );

        newEntries[entries.length] = newEntry;

        javaProject.setRawClasspath( newEntries, monitor );
    }

    public  IPath getClasspathContainerPath()
    {
        return new Path(SDKClasspathContainer.ID);
    }

}