/*
    * ====================================================================
    * 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.testing.nio;
  
  import java.io.IOException;
  import java.net.InetSocketAddress;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.concurrent.Future;
  
  import javax.net.ssl.SSLContext;
  
  import org.apache.hc.core5.function.Decorator;
  import org.apache.hc.core5.function.Supplier;
  import org.apache.hc.core5.http.config.CharCodingConfig;
  import org.apache.hc.core5.http.config.Http1Config;
  import org.apache.hc.core5.http.impl.DefaultConnectionReuseStrategy;
  import org.apache.hc.core5.http.impl.HttpProcessors;
  import org.apache.hc.core5.http.impl.routing.RequestRouter;
  import org.apache.hc.core5.http.nio.AsyncServerExchangeHandler;
  import org.apache.hc.core5.http.nio.AsyncServerRequestHandler;
  import org.apache.hc.core5.http.nio.support.BasicAsyncServerExpectationDecorator;
  import org.apache.hc.core5.http.nio.support.BasicServerExchangeHandler;
  import org.apache.hc.core5.http.nio.support.DefaultAsyncResponseExchangeHandlerFactory;
  import org.apache.hc.core5.http.protocol.HttpProcessor;
  import org.apache.hc.core5.http.protocol.UriPatternType;
  import org.apache.hc.core5.reactor.IOEventHandlerFactory;
  import org.apache.hc.core5.reactor.IOReactorConfig;
  import org.apache.hc.core5.reactor.IOReactorStatus;
  import org.apache.hc.core5.reactor.ListenerEndpoint;
  import org.apache.hc.core5.reactor.ssl.SSLSessionInitializer;
  import org.apache.hc.core5.reactor.ssl.SSLSessionVerifier;
  import org.apache.hc.core5.util.Asserts;
  
  public class Http1TestServer extends AsyncServer {
  
      private final List<RequestRouter.Entry<Supplier<AsyncServerExchangeHandler>>> routeEntries;
      private final SSLContext sslContext;
      private final SSLSessionInitializer sslSessionInitializer;
      private final SSLSessionVerifier sslSessionVerifier;
  
      public Http1TestServer(
              final IOReactorConfig ioReactorConfig,
              final SSLContext sslContext,
              final SSLSessionInitializer sslSessionInitializer,
              final SSLSessionVerifier sslSessionVerifier) throws IOException {
          super(ioReactorConfig);
          this.routeEntries = new ArrayList<>();
          this.sslContext = sslContext;
          this.sslSessionInitializer = sslSessionInitializer;
          this.sslSessionVerifier = sslSessionVerifier;
      }
  
      public Http1TestServer() throws IOException {
          this(IOReactorConfig.DEFAULT, null, null, null);
      }
  
      public void register(final String uriPattern, final Supplier<AsyncServerExchangeHandler> supplier) {
          Asserts.check(getStatus() == IOReactorStatus.INACTIVE, "Server has already been started");
          routeEntries.add(new RequestRouter.Entry<>(uriPattern, supplier));
      }
  
      public <T> void register(
              final String uriPattern,
              final AsyncServerRequestHandler<T> requestHandler) {
          register(uriPattern, () -> new BasicServerExchangeHandler<>(requestHandler));
      }
  
      public InetSocketAddress start(final IOEventHandlerFactory handlerFactory) throws Exception {
          execute(handlerFactory);
          final Future<ListenerEndpoint> future = listen(new InetSocketAddress(0));
          final ListenerEndpoint listener = future.get();
          return (InetSocketAddress) listener.getAddress();
      }
 
     public InetSocketAddress start(
             final HttpProcessor httpProcessor,
             final Decorator<AsyncServerExchangeHandler> exchangeHandlerDecorator,
             final Http1Config http1Config) throws Exception {
         return start(new InternalServerHttp1EventHandlerFactory(
                 httpProcessor != null ? httpProcessor : HttpProcessors.server(),
                 new DefaultAsyncResponseExchangeHandlerFactory(
                         RequestRouter.create(RequestRouter.LOCAL_AUTHORITY, UriPatternType.URI_PATTERN, routeEntries, RequestRouter.LOCAL_AUTHORITY_RESOLVER, null),
                         exchangeHandlerDecorator != null ? exchangeHandlerDecorator : BasicAsyncServerExpectationDecorator::new),
                 http1Config,
                 CharCodingConfig.DEFAULT,
                 DefaultConnectionReuseStrategy.INSTANCE,
                 sslContext,
                 sslSessionInitializer,
                 sslSessionVerifier));
     }
 
     public InetSocketAddress start(final HttpProcessor httpProcessor, final Http1Config http1Config) throws Exception {
         return start(httpProcessor, null, http1Config);
     }
 
     public InetSocketAddress start() throws Exception {
         return start(null, null, Http1Config.DEFAULT);
     }
 
 }