/*
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.netbeans.modules.options.util;

import java.util.Comparator;
import org.netbeans.modules.editor.settings.storage.api.EditorSettings;

/**
 * Comparator sorting a list of mime types by their language display name
 */
public final class LanguagesComparator implements Comparator<String> {

    public static final LanguagesComparator INSTANCE = new LanguagesComparator();

    private LanguagesComparator() {}

    @Override
    public int compare(String mimeType1, String mimeType2) {
        if (mimeType1.length() == 0) {
            return mimeType2.length() == 0 ? 0 : -1;
        }
        if (mimeType2.length() == 0) {
            return 1;
        }
        String langName1 = EditorSettings.getDefault().getLanguageName(mimeType1);
        String langName2 = EditorSettings.getDefault().getLanguageName(mimeType2);
        return langName1.compareTo(langName2);
    }

}
