/*
 * Copyright 2010 Ning, Inc.
 *
 * This program is licensed 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.asynchttpclient;

import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.AbstractHandler;
import org.testng.annotations.Test;

import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

import static org.asynchttpclient.Dsl.asyncHttpClient;
import static org.asynchttpclient.util.MiscUtils.isNonEmpty;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNotNull;

/**
 * Tests POST request with Query String.
 *
 * @author Hubert Iwaniuk
 */
public class PostWithQueryStringTest extends AbstractBasicTest {

  @Test
  public void postWithQueryString() throws IOException, ExecutionException, TimeoutException, InterruptedException {
    try (AsyncHttpClient client = asyncHttpClient()) {
      Future<Response> f = client.preparePost("http://localhost:" + port1 + "/?a=b").setBody("abc".getBytes()).execute();
      Response resp = f.get(3, TimeUnit.SECONDS);
      assertNotNull(resp);
      assertEquals(resp.getStatusCode(), HttpServletResponse.SC_OK);
    }
  }

  @Test
  public void postWithNullQueryParam() throws IOException, ExecutionException, TimeoutException, InterruptedException {
    try (AsyncHttpClient client = asyncHttpClient()) {
      Future<Response> f = client.preparePost("http://localhost:" + port1 + "/?a=b&c&d=e").setBody("abc".getBytes()).execute(new AsyncCompletionHandlerBase() {

        @Override
        public State onStatusReceived(final HttpResponseStatus status) throws Exception {
          if (!status.getUri().toUrl().equals("http://localhost:" + port1 + "/?a=b&c&d=e")) {
            throw new IOException("failed to parse the query properly");
          }
          return super.onStatusReceived(status);
        }

      });
      Response resp = f.get(3, TimeUnit.SECONDS);
      assertNotNull(resp);
      assertEquals(resp.getStatusCode(), HttpServletResponse.SC_OK);
    }
  }

  @Test
  public void postWithEmptyParamsQueryString() throws IOException, ExecutionException, TimeoutException, InterruptedException {
    try (AsyncHttpClient client = asyncHttpClient()) {
      Future<Response> f = client.preparePost("http://localhost:" + port1 + "/?a=b&c=&d=e").setBody("abc".getBytes()).execute(new AsyncCompletionHandlerBase() {

        @Override
        public State onStatusReceived(final HttpResponseStatus status) throws Exception {
          if (!status.getUri().toUrl().equals("http://localhost:" + port1 + "/?a=b&c=&d=e")) {
            throw new IOException("failed to parse the query properly");
          }
          return super.onStatusReceived(status);
        }

      });
      Response resp = f.get(3, TimeUnit.SECONDS);
      assertNotNull(resp);
      assertEquals(resp.getStatusCode(), HttpServletResponse.SC_OK);
    }
  }

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

  /**
   * POST with QueryString server part.
   */
  private class PostWithQueryStringHandler extends AbstractHandler {
    public void handle(String s, Request r, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
      if ("POST".equalsIgnoreCase(request.getMethod())) {
        String qs = request.getQueryString();
        if (isNonEmpty(qs) && request.getContentLength() == 3) {
          ServletInputStream is = request.getInputStream();
          response.setStatus(HttpServletResponse.SC_OK);
          byte buf[] = new byte[is.available()];
          is.readLine(buf, 0, is.available());
          ServletOutputStream os = response.getOutputStream();
          os.println(new String(buf));
          os.flush();
          os.close();
        } else {
          response.sendError(HttpServletResponse.SC_NOT_ACCEPTABLE);
        }
      } else { // this handler is to handle POST request
        response.sendError(HttpServletResponse.SC_FORBIDDEN);
      }
    }
  }
}