/*
    * 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.ext.elasticsearch.client;
  
  import co.elastic.clients.elasticsearch.ElasticsearchClient;
  import java.util.stream.Collectors;
  import org.apache.http.HttpHost;
  import org.apache.syncope.core.persistence.api.dao.AnyObjectDAO;
  import org.apache.syncope.core.persistence.api.dao.GroupDAO;
  import org.apache.syncope.core.persistence.api.dao.UserDAO;
  import org.identityconnectors.common.CollectionUtil;
  import org.springframework.boot.actuate.health.HealthContributor;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
  import org.springframework.boot.context.properties.EnableConfigurationProperties;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.context.annotation.Lazy;
  
  @EnableConfigurationProperties(ElasticsearchProperties.class)
  @Configuration(proxyBeanMethods = false)
  public class ElasticsearchClientContext {
  
      @ConditionalOnMissingBean
      @Bean
      public ElasticsearchClientFactoryBean elasticsearchClientFactoryBean(final ElasticsearchProperties props) {
          return new ElasticsearchClientFactoryBean(
                  CollectionUtil.nullAsEmpty(props.getHosts()).stream().
                          map(HttpHost::create).collect(Collectors.toList()));
      }
  
      @ConditionalOnMissingBean
      @Bean
      public ElasticsearchUtils elasticsearchUtils(
              final @Lazy UserDAO userDAO,
              final @Lazy GroupDAO groupDAO,
              final @Lazy AnyObjectDAO anyObjectDAO) {
  
          return new ElasticsearchUtils(userDAO, groupDAO, anyObjectDAO);
      }
  
      @ConditionalOnMissingBean
      @Bean
      public ElasticsearchIndexManager elasticsearchIndexManager(
              final ElasticsearchProperties props,
              final ElasticsearchClient client,
              final ElasticsearchUtils elasticsearchUtils) {
  
          return new ElasticsearchIndexManager(
                  client,
                  elasticsearchUtils,
                  props.getNumberOfShards(),
                  props.getNumberOfReplicas());
      }
  
      @ConditionalOnMissingBean
      @Bean
      public ElasticsearchIndexLoader elasticsearchIndexLoader(final ElasticsearchIndexManager indexManager) {
          return new ElasticsearchIndexLoader(indexManager);
      }
  
      @ConditionalOnMissingBean(name = "syncopeElasticsearchHealthContributor")
      @Bean(name = {
          "syncopeElasticsearchHealthContributor", "elasticsearchHealthIndicator", "elasticsearchHealthContributor" })
      public HealthContributor syncopeElasticsearchHealthContributor(final ElasticsearchClient client) {
          return new SyncopeElasticsearchHealthContributor(client);
      }
  }