/*-
 * ============LICENSE_START=======================================================
 *  Copyright (C) 2019 Ericsson. All rights reserved.
 * ================================================================================
 *  Modifications Copyright (c) 2019 Samsung
 * ================================================================================
 * 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.
 * 
 * SPDX-License-Identifier: Apache-2.0
 * ============LICENSE_END=========================================================
 */
package org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks;

import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.CREATE_VNF_RESPONSE_PARAM_NAME;
import static org.onap.so.bpmn.infrastructure.adapter.vnfm.tasks.Constants.OPERATION_STATUS_PARAM_NAME;
import org.onap.so.bpmn.common.BuildingBlockExecution;
import org.onap.so.client.exception.ExceptionBuilder;
import org.onap.vnfmadapter.v1.model.CreateVnfResponse;
import org.onap.vnfmadapter.v1.model.OperationStateEnum;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import com.google.common.base.Optional;


/**
 * @author waqas.ikram@est.tech
 *
 */
@Component
public class MonitorVnfmCreateJobTask extends MonitorVnfmJobTask{

  private static final Logger LOGGER = LoggerFactory.getLogger(MonitorVnfmCreateJobTask.class);

  @Autowired
  public MonitorVnfmCreateJobTask(final VnfmAdapterServiceProvider vnfmAdapterServiceProvider,
      final ExceptionBuilder exceptionUtil) {
    super(vnfmAdapterServiceProvider, exceptionUtil);
  }

  /**
   * Get the current operation status of instantiation job
   * 
   * @param execution {@link org.onap.so.bpmn.common.DelegateExecutionImpl}
   */
  public void getCurrentOperationStatus(final BuildingBlockExecution execution) {
    LOGGER.debug("Executing getCurrentOperationStatus  ...");
    final CreateVnfResponse vnfInstantiateResponse = execution.getVariable(CREATE_VNF_RESPONSE_PARAM_NAME);
    execution.setVariable(OPERATION_STATUS_PARAM_NAME, getOperationStatus(execution, vnfInstantiateResponse.getJobId()));
    LOGGER.debug("Finished executing getCurrentOperationStatus ...");
  }

  /**
   * Log and throw exception on timeout for job status
   * 
   * @param execution {@link org.onap.so.bpmn.common.DelegateExecutionImpl}
   */
  public void timeOutLogFailue(final BuildingBlockExecution execution) {
    final String message = "Instantiation operation time out";
    LOGGER.error(message);
    exceptionUtil.buildAndThrowWorkflowException(execution, 1205, message);
  }

  /**
   * Check the final status of instantiation throw exception if not completed successfully
   * 
   * @param execution {@link org.onap.so.bpmn.common.DelegateExecutionImpl}
   */
  public void checkIfOperationWasSuccessful(final BuildingBlockExecution execution) {
    LOGGER.debug("Executing checkIfOperationWasSuccessful  ...");
    final Optional<OperationStateEnum> operationStatusOption = execution.getVariable(OPERATION_STATUS_PARAM_NAME);
    final CreateVnfResponse vnfInstantiateResponse = execution.getVariable(CREATE_VNF_RESPONSE_PARAM_NAME);
    if (operationStatusOption == null || !operationStatusOption.isPresent()) {
      final String message = "Unable to instantiate jobId: "
          + (vnfInstantiateResponse != null ? vnfInstantiateResponse.getJobId() : "null")
          + "Unable to retrieve OperationStatus";
      LOGGER.error(message);
      exceptionUtil.buildAndThrowWorkflowException(execution, 1206, message);
    } else if (operationStatusOption != null && operationStatusOption.isPresent()) {
      final OperationStateEnum operationStatus = operationStatusOption.get();
      if (operationStatus != OperationStateEnum.COMPLETED) {
        final String message = "Unable to instantiate jobId: "
            + (vnfInstantiateResponse != null ? vnfInstantiateResponse.getJobId() : "null") + " OperationStatus: "
            + operationStatus;
        LOGGER.error(message);
        exceptionUtil.buildAndThrowWorkflowException(execution, 1207, message);
      }
      LOGGER.debug("Successfully completed instatiation of job {}", vnfInstantiateResponse);
    }
  }
}