/* Copyright 2002-2022 CS GROUP
    * Licensed to CS GROUP (CS) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * CS 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.orekit.files.ccsds.ndm.odm.ocm;
  
  import java.io.IOException;
  
  import org.orekit.files.ccsds.definitions.TimeConverter;
  import org.orekit.files.ccsds.section.AbstractWriter;
  import org.orekit.files.ccsds.utils.generation.Generator;
  import org.orekit.utils.units.Unit;
  
  /** Writer for orbit determination data.
   * @author Luc Maisonobe
   * @since 11.0
   */
  class OrbitDeterminationWriter extends AbstractWriter {
  
      /** Orbit determination block. */
      private final OrbitDetermination od;
  
      /** Converter for dates. */
      private final TimeConverter timeConverter;
  
      /** Create a writer.
       * @param orbitDetermination orbit determination to write
       * @param timeConverter converter for dates
       */
      OrbitDeterminationWriter(final OrbitDetermination orbitDetermination,
                               final TimeConverter timeConverter) {
          super(OcmDataSubStructureKey.od.name(), OcmDataSubStructureKey.OD.name());
          this.od            = orbitDetermination;
          this.timeConverter = timeConverter;
      }
  
      /** {@inheritDoc} */
      @Override
      protected void writeContent(final Generator generator) throws IOException {
  
          // orbit determination block
          generator.writeComments(od.getComments());
  
          // identifiers
          generator.writeEntry(OrbitDeterminationKey.OD_ID.name(),      od.getId(),     null, false);
          generator.writeEntry(OrbitDeterminationKey.OD_PREV_ID.name(), od.getPrevId(), null, false);
          if (od.getMethod() != null) {
              final StringBuilder builder = new StringBuilder();
              builder.append(od.getMethod().getName());
              if (od.getMethod().getTool() != null) {
                  builder.append(':');
                  builder.append(od.getMethod().getTool());
              }
              generator.writeEntry(OrbitDeterminationKey.OD_METHOD.name(),  builder.toString(), null, false);
          }
  
          // time
          generator.writeEntry(OrbitDeterminationKey.OD_EPOCH.name(),             timeConverter, od.getEpoch(),                false);
          generator.writeEntry(OrbitDeterminationKey.DAYS_SINCE_FIRST_OBS.name(), od.getTimeSinceFirstObservation(), Unit.DAY, false);
          generator.writeEntry(OrbitDeterminationKey.DAYS_SINCE_LAST_OBS.name(),  od.getTimeSinceLastObservation(), Unit.DAY,  false);
          generator.writeEntry(OrbitDeterminationKey.RECOMMENDED_OD_SPAN.name(),  od.getRecommendedOdSpan(), Unit.DAY,         false);
          generator.writeEntry(OrbitDeterminationKey.ACTUAL_OD_SPAN.name(),       od.getActualOdSpan(), Unit.DAY,              false);
  
          // counters
          generator.writeEntry(OrbitDeterminationKey.OBS_AVAILABLE.name(),    od.getObsAvailable(),            false);
          generator.writeEntry(OrbitDeterminationKey.OBS_USED.name(),         od.getObsUsed(),                 false);
          generator.writeEntry(OrbitDeterminationKey.TRACKS_AVAILABLE.name(), od.getTracksAvailable(),         false);
          generator.writeEntry(OrbitDeterminationKey.TRACKS_USED.name(),      od.getTracksUsed(),              false);
          generator.writeEntry(OrbitDeterminationKey.MAXIMUM_OBS_GAP.name(),  od.getMaximumObsGap(), Unit.DAY, false);
  
          // errors
          generator.writeEntry(OrbitDeterminationKey.OD_EPOCH_EIGMAJ.name(),    od.getEpochEigenMaj(), Unit.METRE,        false);
          generator.writeEntry(OrbitDeterminationKey.OD_EPOCH_EIGMED.name(),    od.getEpochEigenMed(), Unit.METRE,        false);
          generator.writeEntry(OrbitDeterminationKey.OD_EPOCH_EIGMIN.name(),    od.getEpochEigenMin(), Unit.METRE,        false);
          generator.writeEntry(OrbitDeterminationKey.OD_MAX_PRED_EIGMAJ.name(), od.getMaxPredictedEigenMaj(), Unit.METRE, false);
          generator.writeEntry(OrbitDeterminationKey.OD_MIN_PRED_EIGMIN.name(), od.getMinPredictedEigenMin(), Unit.METRE, false);
          generator.writeEntry(OrbitDeterminationKey.OD_CONFIDENCE.name(),      od.getConfidence(), Unit.PERCENT,         false);
          generator.writeEntry(OrbitDeterminationKey.GDOP.name(),               od.getGdop(), Unit.ONE,                   false);
  
          // parameters
          generator.writeEntry(OrbitDeterminationKey.SOLVE_N.name(),         od.getSolveN(),             false);
          generator.writeEntry(OrbitDeterminationKey.SOLVE_STATES.name(),    od.getSolveStates(),        false);
          generator.writeEntry(OrbitDeterminationKey.CONSIDER_N.name(),      od.getConsiderN(),          false);
          generator.writeEntry(OrbitDeterminationKey.CONSIDER_PARAMS.name(), od.getConsiderParameters(), false);
          generator.writeEntry(OrbitDeterminationKey.SENSORS_N.name(),       od.getSensorsN(),           false);
          generator.writeEntry(OrbitDeterminationKey.SENSORS.name(),         od.getSensors(),            false);
 
         // observations
         generator.writeEntry(OrbitDeterminationKey.WEIGHTED_RMS.name(),  od.getWeightedRms(), Unit.ONE, false);
         generator.writeEntry(OrbitDeterminationKey.DATA_TYPES.name(),    od.getDataTypes(),             false);
 
     }
 
 }