/*
    * Copyright 2019-2026 the original author or authors.
    *
    * Licensed 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.bremersee.comparator.spring.boot;
  
  import java.util.Optional;
  import lombok.extern.slf4j.Slf4j;
  import org.bremersee.comparator.model.SortOrderTextSeparators;
  import org.bremersee.comparator.spring.web.ReactiveSortOrderHandlerMethodArgumentResolver;
  import org.springframework.boot.autoconfigure.AutoConfiguration;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication.Type;
  import org.springframework.boot.context.event.ApplicationReadyEvent;
  import org.springframework.boot.context.properties.EnableConfigurationProperties;
  import org.springframework.context.event.EventListener;
  import org.springframework.util.ClassUtils;
  import org.springframework.util.StringUtils;
  import org.springframework.web.reactive.config.WebFluxConfigurer;
  import org.springframework.web.reactive.result.method.annotation.ArgumentResolverConfigurer;
  
  /**
   * The sort order autoconfiguration for webflux.
   *
   * @author Christian Bremer
   */
  @ConditionalOnWebApplication(type = Type.REACTIVE)
  @ConditionalOnClass(name = {
      "org.bremersee.comparator.model.SortOrderTextSeparators",
      "org.bremersee.comparator.spring.web.ReactiveSortOrderHandlerMethodArgumentResolver"
  })
  @AutoConfiguration
  @EnableConfigurationProperties(SortOrderConverterProperties.class)
  @Slf4j
  public class SortOrderWebFluxAutoConfiguration implements WebFluxConfigurer {
  
    private final SortOrderTextSeparators separators;
  
    /**
     * Instantiates a new sort order autoconfiguration for webflux.
     *
     * @param properties the properties
     */
    public SortOrderWebFluxAutoConfiguration(SortOrderConverterProperties properties) {
      SortOrderTextSeparators defaults = SortOrderTextSeparators.defaults();
      this.separators = SortOrderTextSeparators.builder()
          .argumentSeparator(Optional.ofNullable(properties.getArgumentSeparator())
              .filter(StringUtils::hasText)
              .orElse(defaults.getArgumentSeparator()))
          .chainSeparator(Optional.ofNullable(properties.getChainSeparator())
              .filter(StringUtils::hasText)
              .orElse(defaults.getChainSeparator()))
          .build();
    }
  
    /**
     * Init.
     */
    @EventListener(ApplicationReadyEvent.class)
    public void init() {
      log.info("""
              
              *********************************************************************************
              * {}
              *********************************************************************************""",
          ClassUtils.getUserClass(getClass()).getSimpleName());
    }
  
    @Override
    public void configureArgumentResolvers(ArgumentResolverConfigurer configurer) {
      var resolver = new ReactiveSortOrderHandlerMethodArgumentResolver();
      resolver.setTextSeparators(separators);
      configurer.addCustomResolver(resolver);
    }
  
  }