/*
    * ====================================================================
    * 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.cache;
  
  import java.time.Instant;
  import java.util.Arrays;
  
  import org.apache.hc.client5.http.cache.HttpCacheEntry;
  import org.apache.hc.client5.http.cache.Resource;
  import org.apache.hc.client5.http.cache.ResourceIOException;
  import org.apache.hc.core5.http.Header;
  import org.apache.hc.core5.util.LangUtils;
  import org.hamcrest.BaseMatcher;
  import org.hamcrest.Description;
  import org.hamcrest.Matcher;
  
  public class HttpCacheEntryMatcher extends BaseMatcher<HttpCacheEntry> {
  
      private final HttpCacheEntry expectedValue;
  
      public HttpCacheEntryMatcher(final HttpCacheEntry expectedValue) {
          this.expectedValue = expectedValue;
      }
  
      @Override
      public boolean matches(final Object item) {
          if (item instanceof HttpCacheEntry) {
              try {
                  final HttpCacheEntry otherValue = (HttpCacheEntry) item;
  
                  final int expectedStatus = expectedValue.getStatus();
                  final int otherStatus = otherValue.getStatus();
                  if (expectedStatus != otherStatus) {
                      return false;
                  }
                  final Instant expectedRequestInstant = expectedValue.getRequestInstant();
                  final Instant otherRequestInstant = otherValue.getRequestInstant();
                  if (!LangUtils.equals(expectedRequestInstant, otherRequestInstant)) {
                      return false;
                  }
                  final Instant expectedResponseInstant = expectedValue.getResponseInstant();
                  final Instant otherResponseInstant = otherValue.getResponseInstant();
                  if (!LangUtils.equals(expectedResponseInstant, otherResponseInstant)) {
                      return false;
                  }
  
                  final Header[] expectedHeaders = expectedValue.getHeaders();
                  final Header[] otherHeaders = otherValue.getHeaders();
                  if (expectedHeaders.length != otherHeaders.length) {
                      return false;
                  }
                  for (int i = 0; i < expectedHeaders.length; i++) {
                      final Header h1 = expectedHeaders[i];
                      final Header h2 = otherHeaders[i];
                      if (!h1.getName().equals(h2.getName()) || !LangUtils.equals(h1.getValue(), h2.getValue())) {
                          return false;
                      }
                  }
                  final Resource expectedResource = expectedValue.getResource();
                  final byte[] expectedContent = expectedResource != null ? expectedResource.get() : null;
                  final Resource otherResource = otherValue.getResource();
                  final byte[] otherContent = otherResource != null ? otherResource.get() : null;
                  return Arrays.equals(expectedContent, otherContent);
              } catch (final ResourceIOException ex) {
                  throw new RuntimeException(ex);
              }
          }
          return false;
      }
  
      @Override
      public void describeTo(final Description description) {
          description.appendValue(expectedValue);
      }
  
     public static Matcher<HttpCacheEntry> equivalent(final HttpCacheEntry target) {
         return new HttpCacheEntryMatcher(target);
     }
 
 }