/* Copyright 2002-2026 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.rinex.navigation.parsers.ephemeris;
  
  import org.orekit.errors.OrekitException;
  import org.orekit.errors.OrekitMessages;
  import org.orekit.files.rinex.navigation.RinexNavigation;
  import org.orekit.files.rinex.navigation.RinexNavigationParser;
  import org.orekit.files.rinex.navigation.parsers.ParseInfo;
  import org.orekit.propagation.analytical.gnss.data.BeidouCivilianNavigationMessage;
  import org.orekit.propagation.analytical.gnss.data.BeidouCivilianNavigationMessageFactory;
  import org.orekit.propagation.analytical.gnss.data.BeidouCivilianType;
  import org.orekit.propagation.analytical.gnss.data.BeidouSatelliteType;
  import org.orekit.time.GNSSDate;
  import org.orekit.utils.units.Unit;
  
  /** Parser for Beidou-3 CNAV.
   * @author Bryan Cazabonne
   * @author Luc Maisonobe
   * @since 14.0
   */
  public class BeidouCnv123Parser
          extends AbstractNavigationParser<BeidouCivilianNavigationMessage, BeidouCivilianNavigationMessageFactory> {
  
      /** Simple constructor.
       * @param parseInfo container for parsing data
       * @param factory factory for navigation message
       */
      public BeidouCnv123Parser(final ParseInfo parseInfo, final BeidouCivilianNavigationMessageFactory factory) {
          super(parseInfo, factory);
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine00() {
          final ParseInfo parseInfo = getParseInfo();
          final BeidouCivilianNavigationMessageFactory factory = getFactory();
          parseSvEpochSvClockLine(parseInfo.getTimeScales().getBDT(), parseInfo, factory);
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine01() {
          super.parseLine01();
          final BeidouCivilianNavigationMessageFactory factory = getFactory();
          factory.getADotDriver().setValue(getParseInfo().parseDouble1(RinexNavigationParser.M_PER_S));
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine05() {
          final ParseInfo parseInfo = getParseInfo();
          final BeidouCivilianNavigationMessageFactory factory = getFactory();
          factory.getIDotDriver().setValue(parseInfo.parseDouble1(RinexNavigationParser.RAD_PER_S));
          factory.getDeltaN0DotDriver().setValue(parseInfo.parseDouble2(RinexNavigationParser.RAD_PER_S2));
          try {
              factory.setSatelliteType(BeidouSatelliteType.parseSatelliteType(parseInfo.parseInt3()));
          } catch (IllegalArgumentException iae) {
              throw new OrekitException(OrekitMessages.UNABLE_TO_PARSE_LINE_IN_FILE,
                                        parseInfo.getLineNumber(), parseInfo.getName(),
                                        parseInfo.getLine());
          }
          factory.getTimeDriver().setValue(parseInfo.parseDouble4(Unit.SECOND));
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine06() {
          final ParseInfo parseInfo = getParseInfo();
          final BeidouCivilianNavigationMessageFactory factory = getFactory();
          factory.setSisaiOe(parseInfo.parseInt1());
          factory.setSisaiOcb(parseInfo.parseInt2());
          factory.setSisaiOc1(parseInfo.parseInt3());
          factory.setSisaiOc2(parseInfo.parseInt4());
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine07() {
          final ParseInfo parseInfo = getParseInfo();
          final BeidouCivilianNavigationMessageFactory factory = getFactory();
          if (factory.getBeidouType() == BeidouCivilianType.CNV1) {
              factory.setIscB1CD(parseInfo.parseDouble1(Unit.SECOND));
              // field 2 is spare
              factory.setTgdB1Cp(parseInfo.parseDouble3(Unit.SECOND));
             factory.setTgdB2ap(parseInfo.parseDouble4(Unit.SECOND));
         } else if (factory.getBeidouType() == BeidouCivilianType.CNV2) {
             // field 1 is spare
             factory.setIscB2AD(parseInfo.parseDouble2(Unit.SECOND));
             factory.setTgdB1Cp(parseInfo.parseDouble3(Unit.SECOND));
             factory.setTgdB2ap(parseInfo.parseDouble4(Unit.SECOND));
         } else {
             parseSismaiHealthIntegrity();
         }
     }
 
     /** {@inheritDoc} */
     @Override
     public void parseLine08() {
         final ParseInfo parseInfo = getParseInfo();
         final BeidouCivilianNavigationMessageFactory factory = getFactory();
         if (factory.getBeidouType() == BeidouCivilianType.CNV3) {
             factory.setTransmissionTime(new GNSSDate(factory.getTimeOfEphemeris().getWeekNumber(),
                                                      parseInfo.parseDouble1(Unit.SECOND),
                                                      factory.getSystem()));
             parseInfo.closePendingRecord();
         } else {
             parseSismaiHealthIntegrity();
         }
     }
 
     /** {@inheritDoc} */
     @Override
     public void parseLine09() {
         final ParseInfo parseInfo = getParseInfo();
         final BeidouCivilianNavigationMessageFactory factory = getFactory();
         factory.setTransmissionTime(new GNSSDate(factory.getTimeOfEphemeris().getWeekNumber(),
                                                  parseInfo.parseDouble1(Unit.SECOND),
                                                  factory.getSystem()));
         // field 2 is spare
         // field 3 is spare
         factory.setIode(parseInfo.parseInt4());
         parseInfo.closePendingRecord();
     }
 
     /** {@inheritDoc} */
     @Override
     public void closeRecord(final RinexNavigation file) {
         file.addBeidouCivilianNavigationMessage(getMessage());
     }
 
     /**
      * Parse the SISMAI/Health/integrity line.
      */
     private void parseSismaiHealthIntegrity() {
         final ParseInfo parseInfo = getParseInfo();
         final BeidouCivilianNavigationMessageFactory factory = getFactory();
         factory.setSismai(parseInfo.parseInt1());
         factory.setHealth(parseInfo.parseInt2());
         factory.setIntegrityFlags(parseInfo.parseInt3());
         factory.setIodc(parseInfo.parseInt4());
     }
 
 }