/*
    * 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.
   */
  package org.apache.syncope.client.lib;
  
  import com.fasterxml.jackson.databind.JsonNode;
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.Base64;
  import javax.ws.rs.core.HttpHeaders;
  import javax.ws.rs.core.MediaType;
  import org.apache.commons.lang3.StringUtils;
  import org.apache.commons.lang3.tuple.Pair;
  import org.apache.cxf.configuration.jsse.TLSClientParameters;
  import org.apache.cxf.jaxrs.client.JAXRSClientFactoryBean;
  import org.apache.cxf.jaxrs.client.WebClient;
  import org.apache.cxf.transports.http.configuration.HTTPClientPolicy;
  import org.apache.syncope.common.lib.info.NumbersInfo;
  import org.apache.syncope.common.lib.info.PlatformInfo;
  import org.apache.syncope.common.lib.info.SystemInfo;
  import org.apache.syncope.common.rest.api.RESTHeaders;
  
  public class SyncopeAnonymousClient extends SyncopeClient {
  
      protected final AnonymousAuthenticationHandler anonymousAuthHandler;
  
      public SyncopeAnonymousClient(
              final MediaType mediaType,
              final JAXRSClientFactoryBean restClientFactory,
              final RestClientExceptionMapper exceptionMapper,
              final AnonymousAuthenticationHandler anonymousAuthHandler,
              final boolean useCompression,
              final HTTPClientPolicy httpClientPolicy,
              final TLSClientParameters tlsClientParameters) {
  
          super(
                  mediaType,
                  restClientFactory,
                  exceptionMapper,
                  anonymousAuthHandler,
                  useCompression,
                  httpClientPolicy,
                  tlsClientParameters);
          this.anonymousAuthHandler = anonymousAuthHandler;
      }
  
      protected JsonNode info() throws IOException {
          WebClient webClient = WebClient.create(
                  restClientFactory.getAddress().replace("/rest", "/actuator/info")).
                  accept(MediaType.APPLICATION_JSON_TYPE).
                  header(RESTHeaders.DOMAIN, getDomain()).
                  header(HttpHeaders.AUTHORIZATION, "Basic " + Base64.getEncoder().encodeToString(
                          (anonymousAuthHandler.getUsername() + ":" + anonymousAuthHandler.getPassword()).getBytes()));
  
          return MAPPER.readTree((InputStream) webClient.get().getEntity());
      }
  
      public Pair<String, String> gitAndBuildInfo() {
          try {
              JsonNode info = info();
              return Pair.of(
                      info.has("git") ? info.get("git").get("commit").get("id").asText() : StringUtils.EMPTY,
                      info.get("build").get("version").asText());
          } catch (IOException e) {
              throw new RuntimeException("While getting build and git Info", e);
          }
      }
  
      public PlatformInfo platform() {
          try {
              return MAPPER.treeToValue(info().get("platform"), PlatformInfo.class);
          } catch (IOException e) {
              throw new RuntimeException("While getting Platform Info", e);
          }
      }
  
      public SystemInfo system() {
          try {
              return MAPPER.treeToValue(info().get("system"), SystemInfo.class);
          } catch (IOException e) {
              throw new RuntimeException("While getting System Info", e);
          }
      }
  
     public NumbersInfo numbers() {
         try {
             return MAPPER.treeToValue(info().get("numbers"), NumbersInfo.class);
         } catch (IOException e) {
             throw new RuntimeException("While getting Numbers Info", e);
         }
     }
 }