/*
 * 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.servicecomb.common.rest.filter.inner;

import java.util.concurrent.CompletableFuture;

import org.apache.servicecomb.common.rest.RestConst;
import org.apache.servicecomb.common.rest.codec.RestCodec;
import org.apache.servicecomb.common.rest.codec.param.RestClientRequestImpl;
import org.apache.servicecomb.common.rest.definition.RestOperationMeta;
import org.apache.servicecomb.common.rest.filter.HttpClientFilter;
import org.apache.servicecomb.core.Invocation;
import org.apache.servicecomb.core.definition.OperationMeta;
import org.apache.servicecomb.foundation.vertx.http.HttpServletRequestEx;
import org.apache.servicecomb.foundation.vertx.http.HttpServletResponseEx;
import org.apache.servicecomb.swagger.invocation.Response;

public class ClientRestArgsFilter implements HttpClientFilter {

  @Override
  public int getOrder() {
    return -100;
  }

  @Override
  public CompletableFuture<Void> beforeSendRequestAsync(Invocation invocation, HttpServletRequestEx requestEx) {
    CompletableFuture<Void> result = new CompletableFuture<>();
    RestClientRequestImpl restClientRequest = (RestClientRequestImpl) invocation.getHandlerContext()
        .get(RestConst.INVOCATION_HANDLER_REQUESTCLIENT);
    OperationMeta operationMeta = invocation.getOperationMeta();
    RestOperationMeta swaggerRestOperation = operationMeta.getExtData(RestConst.SWAGGER_REST_OPERATION);
    try {
      RestCodec.argsToRest(invocation.getSwaggerArguments(), swaggerRestOperation,
          restClientRequest);
      requestEx.setBodyBuffer(restClientRequest.getBodyBuffer());
      result.complete(null);
    } catch (Throwable e) {
      result.completeExceptionally(e);
    }
    return result;
  }

  @Override
  public Response afterReceiveResponse(Invocation invocation, HttpServletResponseEx responseEx) {
    return null;
  }
}