/*
    * ====================================================================
    * 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.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  package org.apache.hc.core5.http2.impl;
  
  import org.apache.hc.core5.http.impl.HttpProcessors;
  import org.apache.hc.core5.http.protocol.HttpProcessor;
  import org.apache.hc.core5.http.protocol.HttpProcessorBuilder;
  import org.apache.hc.core5.http.protocol.RequestExpectContinue;
  import org.apache.hc.core5.http.protocol.RequestUserAgent;
  import org.apache.hc.core5.http.protocol.ResponseDate;
  import org.apache.hc.core5.http.protocol.ResponseServer;
  import org.apache.hc.core5.http2.protocol.H2RequestConnControl;
  import org.apache.hc.core5.http2.protocol.H2RequestContent;
  import org.apache.hc.core5.http2.protocol.H2RequestTargetHost;
  import org.apache.hc.core5.http2.protocol.H2RequestValidateHost;
  import org.apache.hc.core5.http2.protocol.H2ResponseConnControl;
  import org.apache.hc.core5.http2.protocol.H2ResponseContent;
  import org.apache.hc.core5.util.TextUtils;
  import org.apache.hc.core5.util.VersionInfo;
  
  /**
   * @since 5.0
   */
  public final class H2Processors {
  
      private final static String SOFTWARE = "Apache-HttpCore";
  
      public static HttpProcessorBuilder customServer(final String serverInfo) {
          return HttpProcessorBuilder.create()
                  .addAll(
                          new ResponseDate(),
                          new ResponseServer(!TextUtils.isBlank(serverInfo) ? serverInfo :
                                  VersionInfo.getSoftwareInfo(SOFTWARE, "org.apache.hc.core5", H2Processors.class)),
                          new H2ResponseContent(),
                          new H2ResponseConnControl())
                  .addAll(
                          new H2RequestValidateHost());
      }
  
      public static HttpProcessor server(final String serverInfo) {
          return customServer(serverInfo).build();
      }
  
      public static HttpProcessor server() {
          return customServer(null).build();
      }
  
      public static HttpProcessorBuilder customClient(final String agentInfo) {
          return HttpProcessorBuilder.create()
                  .addAll(
                          new H2RequestContent(),
                          new H2RequestTargetHost(),
                          new H2RequestConnControl(),
                          new RequestUserAgent(!TextUtils.isBlank(agentInfo) ? agentInfo :
                                  VersionInfo.getSoftwareInfo(SOFTWARE, "org.apache.hc.core5", HttpProcessors.class)),
                          new RequestExpectContinue());
      }
  
      public static HttpProcessor client(final String agentInfo) {
          return customClient(agentInfo).build();
      }
  
      public static HttpProcessor client() {
          return customClient(null).build();
      }
  
  }