/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2014-2017 Yegor Bugayenko
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.takes.rq;

import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import lombok.EqualsAndHashCode;
import org.takes.Request;

/**
 * Request with extra header.
 *
 * <p>The class is immutable and thread-safe.
 *
 * @author Igor Khvostenkov (ikhvostenkov@gmail.com)
 * @version $Id: 65fde2cdba97077f8a25d217f7b5fad8a198bf61 $
 * @since 1.0
 */
@EqualsAndHashCode(callSuper = true)
public final class RqWithHeaders extends RqWrap {

    /**
     * Ctor.
     * @param req Original request
     * @param headers Headers to add
     */
    public RqWithHeaders(final Request req, final CharSequence... headers) {
        this(req, Arrays.asList(headers));
    }

    /**
     * Ctor.
     * @param req Original request
     * @param headers Headers to add
     */
    public RqWithHeaders(final Request req,
        final Iterable<? extends CharSequence> headers) {
        super(
            new Request() {
                @Override
                public List<String> head() throws IOException {
                    final List<String> head = new LinkedList<>();
                    for (final String hdr : req.head()) {
                        head.add(hdr);
                    }
                    for (final CharSequence header : headers) {
                        head.add(header.toString().trim());
                    }
                    return head;
                }
                @Override
                public InputStream body() throws IOException {
                    return req.body();
                }
            }
        );
    }
}