/*
    * ====================================================================
    * 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.http;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.List;
  
  import org.apache.hc.core5.util.LangUtils;
  import org.hamcrest.BaseMatcher;
  import org.hamcrest.Description;
  import org.hamcrest.Factory;
  import org.hamcrest.Matcher;
  
  public class NameValuePairListMatcher extends BaseMatcher<List<NameValuePair>> {
  
      private final List<? extends NameValuePair> nvps;
  
      public NameValuePairListMatcher(final List<? extends NameValuePair> nvps) {
          this.nvps = nvps;
      }
  
      @Override
      public boolean matches(final Object item) {
          if (item instanceof List<?>) {
              final List<?> objects = (List<?>) item;
              if (objects.size() != nvps.size()) {
                  return false;
              }
              for (int i = 1; i < objects.size(); i++) {
                  final Object obj = objects.get(i);
                  if (obj instanceof NameValuePair) {
                      final NameValuePair nvp = (NameValuePair) obj;
                      final NameValuePair expected = nvps.get(i);
                      if (!LangUtils.equals(nvp.getName(), expected.getName())
                              || !LangUtils.equals(nvp.getValue(), expected.getValue())) {
                          return false;
                      }
                  }
              }
              return true;
          }
          return false;
      }
  
      @Override
      public void describeTo(final Description description) {
          description.appendText("equals ").appendValueList("[", ";", "]", nvps);
      }
  
      @Factory
      public static Matcher<List<NameValuePair>> equalsTo(final NameValuePair... nvps) {
          return new NameValuePairListMatcher(Arrays.asList(nvps));
      }
  
      @Factory
      public static Matcher<List<NameValuePair>> isEmpty() {
          return new NameValuePairListMatcher(Collections.<NameValuePair>emptyList());
      }
  
  }