/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed 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 android.support.doclava;

import org.gradle.external.javadoc.internal.AbstractJavadocOptionFileOption;
import org.gradle.external.javadoc.internal.JavadocOptionFileWriterContext;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;

/**
 * This class is used to hold complex argument(s) to doclava
 */
public class DoclavaJavadocOptionFileOption extends
        AbstractJavadocOptionFileOption<Iterable<String>> {

    public DoclavaJavadocOptionFileOption(String option) {
        super(option, null);
    }

    public DoclavaJavadocOptionFileOption(String option, Iterable<String> value) {
        super(option, value);
    }

    @Override
    public void write(JavadocOptionFileWriterContext writerContext) throws IOException {
        writerContext.writeOptionHeader(getOption());

        final Iterable<String> args = getValue();
        if (args != null) {
            final Iterator<String> iter = args.iterator();
            while (true) {
                writerContext.writeValue(iter.next());
                if (!iter.hasNext()) {
                    break;
                }
                writerContext.write(" ");
            }
        }

        writerContext.newLine();
    }

    /**
     * @return a deep copy of the option
     */
    public DoclavaJavadocOptionFileOption duplicate() {
        final Iterable<String> value = getValue();
        final ArrayList<String> valueCopy;
        if (value != null) {
            valueCopy = new ArrayList<>();
            for (String item : value) {
                valueCopy.add(item);
            }
        } else {
            valueCopy = null;
        }
        return new DoclavaJavadocOptionFileOption(getOption(), valueCopy);
    }
}