/*
    * Copyright 2015 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.openehealth.ipf.commons.ihe.fhir.iti83;
  
  import ca.uhn.fhir.rest.client.api.IGenericClient;
  import ca.uhn.fhir.rest.gclient.IClientExecutable;
  import ca.uhn.fhir.rest.gclient.IOperationUntypedWithInput;
  import org.hl7.fhir.dstu3.model.Parameters;
  import org.hl7.fhir.dstu3.model.Patient;
  import org.hl7.fhir.dstu3.model.StringType;
  import org.openehealth.ipf.commons.ihe.fhir.ClientRequestFactory;
  
  import java.util.Map;
  
  /**
   * Request Factory for Iti-83 requests
   *
   * @author Christian Ohr
   * @since 3.4
   */
  public class Iti83ClientRequestFactory implements ClientRequestFactory<IOperationUntypedWithInput<Parameters>> {
  
      @Override
      public IClientExecutable<IOperationUntypedWithInput<Parameters>, ?> getClientExecutable(IGenericClient client, Object requestData, Map<String, Object> parameters) {
  
          if (requestData instanceof Parameters) {
              return getClientExecutable(client, (Parameters) requestData);
          } else {
              Parameters p = new Parameters();
              parameters.entrySet().stream()
                      .filter(entry -> Iti83Constants.ITI83_PARAMETERS.contains(entry.getKey()))
                      .forEach(entry -> p.addParameter()
                              .setName(entry.getKey())
                              .setValue(new StringType(entry.getValue().toString())));
              return getClientExecutable(client, p);
          }
  
      }
  
      private IClientExecutable<IOperationUntypedWithInput<Parameters>, ?> getClientExecutable(IGenericClient client, Parameters requestData) {
          return client.operation()
                  .onType(Patient.class)
                  .named(Iti83Constants.PIXM_OPERATION_NAME)
                  .withParameters(requestData)
                  .useHttpGet();
      }
  }