/**
 * ============LICENSE_START=======================================================
 * org.onap.aai
 * ================================================================================
 * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
 * Copyright © 2017 Amdocs
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 *
 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
 */
package org.onap.aai.datarouter.policy;

import java.io.FileNotFoundException;
import java.util.List;

import org.apache.camel.Exchange;
import org.eclipse.persistence.jaxb.dynamic.DynamicJAXBContext;
import org.onap.aai.datarouter.entity.SpikeEventEntity;
import org.onap.aai.datarouter.entity.SpikeEventVertex;
import org.onap.aai.datarouter.logging.EntityEventPolicyMsgs;


public class SpikeEntitySearchProcessor extends AbstractSpikeEntityEventProcessor {

  public static final String additionalInfo = "Response of SpikeEntityEventPolicy";
  private static final String searchIndexSchema = "";



  /** Agent for communicating with the Search Service. */

  public SpikeEntitySearchProcessor(SpikeEventPolicyConfig config)
      throws FileNotFoundException {
    super(config);

  }

  @Override
  protected void startup() {
    // Create the indexes in the search service if they do not already exist.
    searchAgent.createSearchIndex(searchIndexName, searchIndexSchema);
    logger.info(EntityEventPolicyMsgs.ENTITY_EVENT_POLICY_REGISTERED);
  }

  @Override
  public void process(Exchange exchange) throws Exception {

    long startTime = System.currentTimeMillis();
    String uebPayload = getExchangeBody(exchange);
    if (uebPayload == null) {
      return;
    }

    String action = getSpikeEventAction(exchange, uebPayload);
    if (action == null) {
      return;
    }
    SpikeEventVertex eventVertex = populateEventVertex(exchange, uebPayload);
    if (eventVertex == null) {
      return;
    }
    String entityType = getEntityType(exchange, eventVertex, uebPayload);
    if (entityType == null) {
      return;
    }
    String entityLink = getEntityLink(exchange, eventVertex, uebPayload);
    if (entityLink == null) {
      return;
    }
    DynamicJAXBContext oxmJaxbContext = readOxm(exchange, uebPayload);
    if (oxmJaxbContext == null) {
      return;
    }
    String oxmEntityType = getOxmEntityType(entityType);
    List<String> searchableAttr =  getSearchableAttibutes(oxmJaxbContext, oxmEntityType, entityType, uebPayload,
        exchange);
    if (searchableAttr == null) {
      return;
    }

    // log the fact that all data are in good shape
    logger.info(EntityEventPolicyMsgs.PROCESS_ENTITY_EVENT_POLICY_NONVERBOSE, action, entityType);
    logger.debug(EntityEventPolicyMsgs.PROCESS_ENTITY_EVENT_POLICY_VERBOSE, action, entityType,
        uebPayload);

    SpikeEventEntity spikeEventEntity = new SpikeEventEntity();
    spikeEventEntity.setEntityType(entityType);
    spikeEventEntity.setLink(entityLink);
    spikeEventEntity = populateSpikeEventEntity(exchange, spikeEventEntity, oxmJaxbContext,
        entityType, action, uebPayload, oxmEntityType,searchableAttr);
    if (spikeEventEntity == null) {
      return;
    }

    handleSearchServiceOperation(spikeEventEntity, action, searchIndexName);
    long stopTime = System.currentTimeMillis();
    metricsLogger.info(EntityEventPolicyMsgs.OPERATION_RESULT_NO_ERRORS, PROCESS_SPIKE_EVENT,
        String.valueOf(stopTime - startTime));
    setResponse(exchange, ResponseType.SUCCESS, additionalInfo);
    return;
  }

  /*
   * This is not for this Scope. We get back to it later. (updateCerInEntity) private void
   * updateSearchEntityWithCrossEntityReference(SpikeEventEntity spikeEventEntity) { try {
   * Map<String, List<String>> headers = new HashMap<>(); headers.put(Headers.FROM_APP_ID,
   * Arrays.asList("Data Router")); headers.put(Headers.TRANSACTION_ID,
   * Arrays.asList(MDC.get(MdcContext.MDC_REQUEST_ID)));
   * 
   * String entityId = spikeEventEntity.getId(); String jsonPayload;
   * 
   * // Run the GET to retrieve the ETAG from the search service OperationResult storedEntity =
   * searchAgent.getDocument(entitySearchIndex, entityId);
   * 
   * if (HttpUtil.isHttpResponseClassSuccess(storedEntity.getResultCode())) { /* NOTES:
   * aaiEventEntity (ie the nested entity) may contain a subset of properties of the pre-existing
   * object, so all we want to do is update the CER on the pre-existing object (if needed).
   * 
   * 
   * List<String> etag = storedEntity.getHeaders().get(Headers.ETAG);
   * 
   * if (etag != null && !etag.isEmpty()) { headers.put(Headers.IF_MATCH, etag); } else {
   * logger.error(EntityEventPolicyMsgs.NO_ETAG_AVAILABLE_FAILURE, entitySearchIndex, entityId); }
   * 
   * ArrayList<JsonNode> sourceObject = new ArrayList<>();
   * NodeUtils.extractObjectsByKey(NodeUtils.convertJsonStrToJsonNode(storedEntity.getResult()),
   * "content", sourceObject);
   * 
   * if (!sourceObject.isEmpty()) { JsonNode node = sourceObject.get(0); final String sourceCer =
   * NodeUtils.extractFieldValueFromObject(node, "crossEntityReferenceValues"); String newCer =
   * spikeEventEntity.getCrossReferenceEntityValues(); boolean hasNewCer = true; if (sourceCer !=
   * null && sourceCer.length() > 0) { // already has CER if (!sourceCer.contains(newCer)) {// don't
   * re-add newCer = sourceCer + ";" + newCer; } else { hasNewCer = false; } }
   * 
   * if (hasNewCer) { // Do the PUT with new CER ((ObjectNode)
   * node).put("crossEntityReferenceValues", newCer); jsonPayload =
   * NodeUtils.convertObjectToJson(node, false); searchAgent.putDocument(entitySearchIndex,
   * entityId, jsonPayload, headers); } } } else {
   * 
   * if (storedEntity.getResultCode() == 404) { // entity not found, so attempt to do a PUT
   * searchAgent.putDocument(entitySearchIndex, entityId, spikeEventEntity.getAsJson(), headers); }
   * else { logger.error(EntityEventPolicyMsgs.FAILED_TO_UPDATE_ENTITY_IN_DOCSTORE,
   * spikeEventEntity.getId(), "SYNC_ENTITY"); } } } catch (IOException e) {
   * logger.error(EntityEventPolicyMsgs.FAILED_TO_UPDATE_ENTITY_IN_DOCSTORE,
   * spikeEventEntity.getId(), "SYNC_ENTITY"); } }
   */

}