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/**
 * This file is part of veraPDF PDF Box PDF/A Validation Model Implementation, a module of the veraPDF project.
 * Copyright (c) 2015, veraPDF Consortium 
 * All rights reserved.
 *
 * veraPDF PDF Box PDF/A Validation Model Implementation is free software: you can redistribute it and/or modify
 * it under the terms of either:
 *
 * The GNU General public license GPLv3+.
 * You should have received a copy of the GNU General Public License
 * along with veraPDF PDF Box PDF/A Validation Model Implementation as the LICENSE.GPL file in the root of the source
 * tree.  If not, see http://www.gnu.org/licenses/ or
 * https://www.gnu.org/licenses/gpl-3.0.en.html.
 *
 * The Mozilla Public License MPLv2+.
 * You should have received a copy of the Mozilla Public License along with
 * veraPDF PDF Box PDF/A Validation Model Implementation as the LICENSE.MPL file in the root of the source tree.
 * If a copy of the MPL was not distributed with this file, you can obtain one at
 * http://mozilla.org/MPL/2.0/.
 */
package org.verapdf.model.impl.pb.pd;

import org.apache.pdfbox.pdmodel.interactive.documentnavigation.outline.PDOutlineItem;
import org.verapdf.model.baselayer.Object;
import org.verapdf.model.impl.pb.pd.actions.PBoxPDAction;
import org.verapdf.model.pdlayer.PDAction;
import org.verapdf.model.pdlayer.PDOutline;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * Outline (or bookmark) of document
 *
 * @author Evgeniy Muravitskiy
 */
public class PBoxPDOutline extends PBoxPDObject implements PDOutline {

	public static final String OUTLINE_TYPE = "PDOutline";

    public static final String ACTION = "A";
    public static final String DEST = "Dest";
    public static final String TITLE = "Title";

    private final String id;

    public PBoxPDOutline(PDOutlineItem simplePDObject, String id) {
        super(simplePDObject, OUTLINE_TYPE);
        this.id = id;
    }

    @Override
    public String getID() {
        return this.id;
    }

    @Override
    public List getLinkedObjects(String link) {
        switch (link) {
            case ACTION:
                return this.getAction();
            case DEST:
                return Collections.emptyList();
            case TITLE:
                return Collections.emptyList();
            default:
                return super.getLinkedObjects(link);
        }
    }

    private List getAction() {
        List actions = new ArrayList<>(MAX_NUMBER_OF_ELEMENTS);
        org.apache.pdfbox.pdmodel.interactive.action.PDAction action =
				((PDOutlineItem) this.simplePDObject).getAction();
        PDAction pdAction = PBoxPDAction.getAction(action);
        if (action != null) {
            actions.add(pdAction);
            return actions;
        }
        return Collections.emptyList();
    }

}