/*
    * ====================================================================
    * 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.testing;
  
  import java.util.Objects;
  
  import org.apache.hc.client5.testing.auth.AuthResult;
  import org.apache.hc.client5.testing.auth.Authenticator;
  import org.apache.hc.core5.http.message.BasicNameValuePair;
  import org.apache.hc.core5.net.URIAuthority;
  import org.apache.hc.core5.util.TextUtils;
  
  public class BasicTestAuthenticator implements Authenticator {
  
      private final String userToken;
      private final String realm;
  
      public BasicTestAuthenticator(final String userToken, final String realm) {
          this.userToken = userToken;
          this.realm = realm;
      }
  
      @Override
      public boolean authenticate(final URIAuthority authority, final String requestUri, final String credentials) {
          return Objects.equals(userToken, credentials);
      }
  
      @Override
      public AuthResult perform(final URIAuthority authority,
                                final String requestUri,
                                final String credentials) {
          final boolean result = authenticate(authority, requestUri, credentials);
          if (result) {
              return new AuthResult(true);
          } else {
              if (TextUtils.isBlank(credentials)) {
                  return new AuthResult(false);
              } else {
                  final String error = credentials.endsWith("-expired") ? "token expired"  : "invalid token";
                  return new AuthResult(false, new BasicNameValuePair("error", error));
              }
          }
      }
  
      @Override
      public String getRealm(final URIAuthority authority, final String requestUri) {
          return realm;
      }
  
  }