/* 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.ionosphere;
  
  import org.orekit.files.rinex.navigation.IonosphereBaseMessage;
  import org.orekit.files.rinex.navigation.IonosphereKlobucharMessage;
  import org.orekit.files.rinex.navigation.RegionCode;
  import org.orekit.files.rinex.navigation.RinexNavigation;
  import org.orekit.files.rinex.navigation.parsers.ParseInfo;
  import org.orekit.files.rinex.navigation.parsers.RecordLineParser;
  
  /** Parser for Klobuchar ionosphere.
   * @author Luc Maisonobe
   * @since 14.0
   */
  public class KlobucharParser extends RecordLineParser {
  
      /** Container for parsing data. */
      private final ParseInfo parseInfo;
  
      /** Container for Klobuchar message. */
      private final IonosphereKlobucharMessage message;
  
      /** Simple constructor.
       * @param parseInfo container for parsing data
       * @param message container for navigation message
       */
      public KlobucharParser(final ParseInfo parseInfo, final IonosphereKlobucharMessage message) {
          this.parseInfo = parseInfo;
          this.message   = message;
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine00() {
          message.setTransmitTime(parseInfo.parseDate(message.getSystem()));
          message.setAlphaI(0, parseInfo.parseDouble2(IonosphereBaseMessage.S_PER_SC_N0));
          message.setAlphaI(1, parseInfo.parseDouble3(IonosphereBaseMessage.S_PER_SC_N1));
          message.setAlphaI(2, parseInfo.parseDouble4(IonosphereBaseMessage.S_PER_SC_N2));
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine01() {
          message.setAlphaI(3, parseInfo.parseDouble1(IonosphereBaseMessage.S_PER_SC_N3));
          message.setBetaI(0, parseInfo.parseDouble2(IonosphereBaseMessage.S_PER_SC_N0));
          message.setBetaI(1, parseInfo.parseDouble3(IonosphereBaseMessage.S_PER_SC_N1));
          message.setBetaI(2, parseInfo.parseDouble4(IonosphereBaseMessage.S_PER_SC_N2));
      }
  
      /** {@inheritDoc} */
      @Override
      public void parseLine02() {
          message.setBetaI(3, parseInfo.parseDouble1(IonosphereBaseMessage.S_PER_SC_N3));
          final RegionCode regionCode;
          if (parseInfo.getHeader().getFormatVersion() <= 4.01) {
              // up to version 4.01, the region code is encoded as either 0 or 1 in the last line
              regionCode = RegionCode.parseRegionCode(parseInfo.parseInt2());
          } else {
              // starting with 4.02, the region code is the sub-type of the message
              regionCode = RegionCode.parseRegionCode(message.getNavigationMessageSubType());
          }
          message.setRegionCode(regionCode);
          parseInfo.closePendingRecord();
      }
  
      /** {@inheritDoc} */
      @Override
      public void closeRecord(final RinexNavigation file) {
          file.addKlobucharMessage(message);
      }
  
  }