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/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * 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=========================================================
 */

package org.openecomp.sdc.vendorsoftwareproduct.services.utils;

import org.openecomp.core.utilities.file.FileContentHandler;
import org.openecomp.core.utilities.json.JsonUtil;
import org.openecomp.sdc.common.errors.Messages;
import org.openecomp.sdc.common.utils.SdcCommon;
import org.openecomp.sdc.datatypes.error.ErrorMessage;
import org.openecomp.sdc.heat.datatypes.manifest.ManifestContent;
import org.openecomp.sdc.heat.datatypes.structure.HeatStructureTree;
import org.openecomp.sdc.heat.services.tree.HeatTreeManager;
import org.openecomp.sdc.heat.services.tree.HeatTreeManagerUtil;
import org.openecomp.sdc.logging.context.impl.MdcDataDebugMessage;
import org.openecomp.sdc.vendorsoftwareproduct.dao.type.OrchestrationTemplateCandidateData;
import org.openecomp.sdc.vendorsoftwareproduct.dao.type.VspDetails;
import org.openecomp.sdc.vendorsoftwareproduct.services.HeatFileAnalyzer;
import org.openecomp.sdc.vendorsoftwareproduct.services.filedatastructuremodule.CandidateService;
import org.openecomp.sdc.vendorsoftwareproduct.services.impl.HeatFileAnalyzerRowDataImpl;
import org.openecomp.sdc.vendorsoftwareproduct.types.CandidateDataEntityTo;
import org.openecomp.sdc.vendorsoftwareproduct.types.candidateheat.AnalyzedZipHeatFiles;

import java.io.InputStream;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;

public class CandidateEntityBuilder {
  private static MdcDataDebugMessage mdcDataDebugMessage = new MdcDataDebugMessage();
  private CandidateService candidateService;

  public CandidateEntityBuilder(CandidateService candidateService) {
    this.candidateService = candidateService;
  }

  public OrchestrationTemplateCandidateData buildCandidateEntityFromZip(
      VspDetails vspDetails, byte[] uploadedFileData, FileContentHandler contentMap,
      Map<String, List<ErrorMessage>> uploadErrors, String user) throws Exception {
    //mdcDataDebugMessage.debugEntryMessage("VSP Id", vspDetails.getId());

    InputStream zipFileManifest = contentMap.getFileContent(SdcCommon.MANIFEST_NAME);
    HeatFileAnalyzer heatFileAnalyzer = new HeatFileAnalyzerRowDataImpl();
    AnalyzedZipHeatFiles analyzedZipHeatFiles =
        heatFileAnalyzer.analyzeFilesNotEligibleForModulesFromFileAnalyzer(contentMap.getFiles());
    HeatStructureTree tree = getHeatStructureTree(vspDetails, contentMap, analyzedZipHeatFiles);

    CandidateDataEntityTo candidateDataEntityTo =
        new CandidateDataEntityTo(vspDetails.getId(), user, uploadedFileData, tree, contentMap,
            vspDetails.getVersion());
    candidateDataEntityTo.setErrors(uploadErrors);
    OrchestrationTemplateCandidateData candidateDataEntity =
        candidateService.createCandidateDataEntity(candidateDataEntityTo, zipFileManifest,
            analyzedZipHeatFiles);

    mdcDataDebugMessage.debugExitMessage("VSP Id", vspDetails.getId());
    return candidateDataEntity;
  }

  private HeatStructureTree getHeatStructureTree(VspDetails vspDetails,
                                                 FileContentHandler contentMap,
                                                 AnalyzedZipHeatFiles analyzedZipHeatFiles) {
    addManifestToFileContentMapIfNotExist(vspDetails, contentMap, analyzedZipHeatFiles);
    HeatTreeManager heatTreeManager = HeatTreeManagerUtil.initHeatTreeManager(contentMap);
    heatTreeManager.createTree();
    return heatTreeManager.getTree();
  }

  private void addManifestToFileContentMapIfNotExist(VspDetails vspDetails,
                                                     FileContentHandler fileContentHandler,
                                                     AnalyzedZipHeatFiles analyzedZipHeatFiles) {
    mdcDataDebugMessage.debugEntryMessage("VSP Id", vspDetails.getId());

    InputStream manifest = fileContentHandler.getFileContent(SdcCommon.MANIFEST_NAME);
    if (Objects.isNull(manifest)) {
      Optional<ManifestContent> manifestContentOptional =
          candidateService.createManifest(vspDetails, fileContentHandler, analyzedZipHeatFiles);
      if (!manifestContentOptional.isPresent()) {
        throw new RuntimeException(Messages.CREATE_MANIFEST_FROM_ZIP.getErrorMessage());
      }
      ManifestContent manifestContent = manifestContentOptional.get();
      fileContentHandler.addFile(
          SdcCommon.MANIFEST_NAME,
          String.valueOf(JsonUtil.sbObject2Json(manifestContent)).getBytes());
    }

    mdcDataDebugMessage.debugExitMessage("VSP Id", vspDetails.getId());
  }
}