/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

package org.openoffice.idesupport;

import java.io.File;
import java.util.ArrayList;
import org.openoffice.idesupport.zip.ParcelZipper;

import com.sun.star.script.framework.container.ScriptEntry;

public class ExtensionFinder implements MethodFinder {

    private String[] extensions;
    private String language;

    public ExtensionFinder(String language, String[] extensions) {
        this.language = language;
        this.extensions = extensions;
    }

    public ScriptEntry[] findMethods(File basedir) {
        String parcelName;
        ArrayList files = new ArrayList(10);
        ScriptEntry[] empty = new ScriptEntry[0];

        if (basedir == null || basedir.exists() == false ||
            basedir.isDirectory() == false)
            return empty;

        parcelName = basedir.getName();
        if (parcelName.equals(ParcelZipper.CONTENTS_DIRNAME))
            parcelName = basedir.getParentFile().getName();

        findFiles(files, basedir, parcelName);

        if (files.size() != 0)
            return (ScriptEntry[])files.toArray(empty);
        return empty;
    }

    private void findFiles(ArrayList list, File basedir, String parcelName) {
        File[] children = basedir.listFiles();
        File f;

        for (int i = 0; i < children.length; i++) {
            f = children[i];

            if (f.isDirectory())
                findFiles(list, f, parcelName);
            else {
                for (int j = 0; j < extensions.length; j++) {
                    if (f.getName().endsWith(extensions[j])) {
                        ScriptEntry entry = new ScriptEntry(language,
                            f.getName(), f.getName(), parcelName);
                        list.add(entry);
                        break;
                    }
                }
            }
        }
    }
}