/*
    * ====================================================================
    * 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.client5.http.impl.routing;
  
  import java.net.InetAddress;
  import java.net.InetSocketAddress;
  import java.net.Proxy;
  import java.net.ProxySelector;
  import java.net.URI;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.hc.client5.http.HttpRoute;
  import org.apache.hc.client5.http.SchemePortResolver;
  import org.apache.hc.client5.http.protocol.HttpClientContext;
  import org.apache.hc.core5.http.HttpHost;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.mockito.ArgumentMatchers;
  import org.mockito.Mockito;
  
  /**
   * Tests for {@link SystemDefaultRoutePlanner}.
   */
  @SuppressWarnings("boxing") // test code
  class TestSystemDefaultRoutePlanner {
  
      private SchemePortResolver schemePortResolver;
      private ProxySelector proxySelector;
      private SystemDefaultRoutePlanner routePlanner;
  
      @BeforeEach
      void setup() {
          schemePortResolver = Mockito.mock(SchemePortResolver.class);
          proxySelector = Mockito.mock(ProxySelector.class);
          routePlanner = new SystemDefaultRoutePlanner(schemePortResolver, proxySelector);
      }
  
      @Test
      void testDirect() throws Exception {
          final HttpHost target = new HttpHost("http", "somehost", 80);
  
          final HttpClientContext context = HttpClientContext.create();
          final HttpRoute route = routePlanner.determineRoute(target, context);
  
          Assertions.assertEquals(target, route.getTargetHost());
          Assertions.assertEquals(1, route.getHopCount());
          Assertions.assertFalse(route.isSecure());
          Mockito.verify(schemePortResolver, Mockito.never()).resolve(ArgumentMatchers.any());
      }
  
      @Test
      void testDirectDefaultPort() throws Exception {
          final HttpHost target = new HttpHost("https", "somehost", -1);
          Mockito.when(schemePortResolver.resolve(target)).thenReturn(443);
  
          final HttpClientContext context = HttpClientContext.create();
          final HttpRoute route = routePlanner.determineRoute(target, context);
  
          Assertions.assertEquals(new HttpHost("https", "somehost", 443), route.getTargetHost());
          Assertions.assertEquals(1, route.getHopCount());
          Assertions.assertTrue(route.isSecure());
      }
  
      @Test
      void testProxy() throws Exception {
  
          final InetAddress ia = InetAddress.getByAddress(new byte[] {
              (byte)127, (byte)0, (byte)0, (byte)1
          });
          final InetSocketAddress isa1 = new InetSocketAddress(ia, 11111);
          final InetSocketAddress isa2 = new InetSocketAddress(ia, 22222);
  
         final List<Proxy> proxies = new ArrayList<>(2);
         proxies.add(new Proxy(Proxy.Type.HTTP, isa1));
         proxies.add(new Proxy(Proxy.Type.HTTP, isa2));
 
         Mockito.when(proxySelector.select(new URI("http://somehost:80"))).thenReturn(proxies);
 
         final HttpHost target = new HttpHost("http", "somehost", 80);
 
         final HttpClientContext context = HttpClientContext.create();
         final HttpRoute route = routePlanner.determineRoute(target, context);
 
         Assertions.assertEquals(target, route.getTargetHost());
         Assertions.assertEquals(2, route.getHopCount());
         Assertions.assertEquals(isa1.getPort(), route.getProxyHost().getPort());
     }
 
 }