/*
 * Copyright 2010 Ning, Inc.
 *
 * Ning 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 com.ning.http.client.async;

import com.ning.http.client.AsyncCompletionHandlerBase;
import com.ning.http.client.AsyncHttpClient;
import com.ning.http.client.Request;
import com.ning.http.client.RequestBuilder;
import com.ning.http.client.Response;
import org.eclipse.jetty.server.handler.AbstractHandler;
import org.omg.CORBA.TIMEOUT;
import org.testng.Assert;
import org.testng.annotations.Test;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.concurrent.BrokenBarrierException;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

/**
 * Tests HEAD request that gets 302 response.
 *
 * @author Hubert Iwaniuk
 */
public abstract class Head302Test extends AbstractBasicTest {
    /**
     * Handler that does Found (302) in response to HEAD method.
     */
    private class Head302handler extends AbstractHandler {
        public void handle(String s,
                           org.eclipse.jetty.server.Request r,
                           HttpServletRequest request,
                           HttpServletResponse response) throws IOException, ServletException {
            if ("HEAD".equalsIgnoreCase(request.getMethod())) {
                if (request.getPathInfo().endsWith("_moved")) {
                    response.setStatus(HttpServletResponse.SC_OK);
                } else {
                    response.setStatus(HttpServletResponse.SC_FOUND); // 302
                    response.setHeader("Location", request.getPathInfo() + "_moved");
                }
            } else { // this handler is to handle HEAD reqeust
                response.setStatus(HttpServletResponse.SC_FORBIDDEN);
            }
        }
    }

    @Test(groups = {"standalone", "default_provider"})
    public void testHEAD302() throws IOException, BrokenBarrierException, InterruptedException, ExecutionException, TimeoutException {
        AsyncHttpClient client = getAsyncHttpClient(null);
        final CountDownLatch l = new CountDownLatch(1);
        Request request = new RequestBuilder("HEAD").setUrl("http://127.0.0.1:" + port1 + "/Test").build();

        client.executeRequest(request, new AsyncCompletionHandlerBase() {
            @Override
            public Response onCompleted(Response response) throws Exception {
                l.countDown();
                return super.onCompleted(response);
            }
        }).get(3, TimeUnit.SECONDS);

        if (!l.await(TIMEOUT, TimeUnit.SECONDS)) {
            Assert.fail("Timeout out");
        }
        client.close();
    }

    @Override
    public AbstractHandler configureHandler() throws Exception {
        return new Head302handler();
    }
}