/* Copyright 2002-2025 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.hipparchus.util.FastMath;
  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.files.rinex.utils.ParsingUtils;
  import org.orekit.propagation.analytical.gnss.data.SBASNavigationMessage;
  import org.orekit.time.TimeScale;
  import org.orekit.utils.units.Unit;
  
  /** Parser for SBAS.
   * @author Bryan Cazabonne
   * @author Luc Maisonobe
   * @since 14.0
   */
  public class SbasParser extends AbstractEphemerisParser<SBASNavigationMessage> {
  
      /** Simple constructor.
       * @param parseInfo container for parsing data
       * @param message container for navigation message
       */
      public SbasParser(final ParseInfo parseInfo, final SBASNavigationMessage message) {
          super(parseInfo, message);
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine00() {
  
          final ParseInfo parseInfo = getParseInfo();
          final SBASNavigationMessage message = getMessage();
  
          // parse PRN
          message.setPRN(ParsingUtils.parseInt(parseInfo.getLine(), 1, 2));
  
          // Time scale (UTC for Rinex 3.01 and GPS for other RINEX versions)
          final int version100 = (int) FastMath.rint(parseInfo.getHeader().getFormatVersion() * 100);
          final TimeScale timeScale = (version100 == 301) ?
                                      parseInfo.getTimeScales().getUTC() :
                                      parseInfo.getTimeScales().getGPS();
  
          message.setEpochToc(parseInfo.parseDate(timeScale));
          message.setAGf0(parseInfo.parseDouble2(Unit.SECOND));
          message.setAGf1(parseInfo.parseDouble3(RinexNavigationParser.S_PER_S));
          message.setTime(parseInfo.parseDouble4(Unit.SECOND));
  
          // Set the ephemeris epoch (same as time of clock epoch)
          message.setDate(message.getEpochToc());
  
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine01() {
          super.parseLine01();
          getMessage().setHealth(getParseInfo().parseDouble4(Unit.NONE));
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine02() {
          super.parseLine02();
          getMessage().setURA(getParseInfo().parseDouble4(Unit.NONE));
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine03() {
          super.parseLine03();
          final ParseInfo parseInfo = getParseInfo();
          final SBASNavigationMessage message = getMessage();
          message.setIODN(parseInfo.parseDouble4(Unit.NONE));
          parseInfo.closePendingRecord();
      }
  
      /** {@inheritDoc} */
      @Override
      public void closeRecord(final RinexNavigation file) {
          file.addSBASNavigationMessage(getMessage());
      }
  
  }