/*
    * Copyright 2022 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.apiclient.webflux.contract.spring;
  
  import java.util.Comparator;
  import org.bremersee.apiclient.webflux.InvocationParameter;
  import org.springframework.web.bind.annotation.RequestBody;
  import org.springframework.web.bind.annotation.RequestPart;
  
  /**
   * The request body comparator.
   *
   * @author Christian Bremer
   */
  class RequestBodyComparator implements Comparator<InvocationParameter> {
  
    @Override
    public int compare(InvocationParameter o1, InvocationParameter o2) {
      boolean a1 = o1.hasParameterAnnotation(RequestBody.class);
      boolean a2 = o2.hasParameterAnnotation(RequestBody.class);
      if (a1 && a2) {
        return 0;
      }
      if (a1) {
        return -1;
      }
      if (a2) {
        return 1;
      }
      a1 = o1.hasParameterAnnotation(RequestPart.class);
      a2 = o2.hasParameterAnnotation(RequestPart.class);
      if (a1 && a2) {
        return 0;
      }
      if (a1) {
        return -1;
      }
      if (a2) {
        return 1;
      }
      return Integer.compare(o1.getIndex(), o2.getIndex());
    }
  }