package org.metricshub.ipmi.core.coding.commands.sel;
   
   /*-
    * ╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲
    * IPMI Java Client
    * ჻჻჻჻჻჻
    * Copyright 2023 Verax Systems, MetricsHub
    * ჻჻჻჻჻჻
    * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Lesser General Public License as
   * published by the Free Software Foundation, either version 3 of the
   * License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Lesser Public License for more details.
   *
   * You should have received a copy of the GNU General Lesser Public
   * License along with this program.  If not, see
   * <http://www.gnu.org/licenses/lgpl-3.0.html>.
   * ╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱
   */
  
  import org.metricshub.ipmi.core.coding.commands.CommandCodes;
  import org.metricshub.ipmi.core.coding.commands.IpmiCommandCoder;
  import org.metricshub.ipmi.core.coding.commands.IpmiVersion;
  import org.metricshub.ipmi.core.coding.commands.ResponseData;
  import org.metricshub.ipmi.core.coding.payload.CompletionCode;
  import org.metricshub.ipmi.core.coding.payload.IpmiPayload;
  import org.metricshub.ipmi.core.coding.payload.lan.IPMIException;
  import org.metricshub.ipmi.core.coding.payload.lan.IpmiLanRequest;
  import org.metricshub.ipmi.core.coding.payload.lan.IpmiLanResponse;
  import org.metricshub.ipmi.core.coding.payload.lan.NetworkFunction;
  import org.metricshub.ipmi.core.coding.protocol.AuthenticationType;
  import org.metricshub.ipmi.core.coding.protocol.IpmiMessage;
  import org.metricshub.ipmi.core.coding.security.CipherSuite;
  import org.metricshub.ipmi.core.common.TypeConverter;
  
  import java.security.InvalidKeyException;
  import java.security.NoSuchAlgorithmException;
  
  /**
   * Wrapper class for Get SEL Info request.
   */
  public class GetSelInfo extends IpmiCommandCoder {
  
      /**
       * Initiates GetSelInfo for both encoding and decoding.
       *
       * @param version
       *            - IPMI version of the command.
       * @param cipherSuite
       *            - {@link CipherSuite} containing authentication,
       *            confidentiality and integrity algorithms for this session.
       * @param authenticationType
       *            - Type of authentication used. Must be RMCPPlus for IPMI v2.0.
       */
      public GetSelInfo(IpmiVersion version, CipherSuite cipherSuite,
              AuthenticationType authenticationType) {
          super(version, cipherSuite, authenticationType);
      }
  
      @Override
      public byte getCommandCode() {
          return CommandCodes.GET_SEL_INFO;
      }
  
      @Override
      public NetworkFunction getNetworkFunction() {
          return NetworkFunction.StorageRequest;
      }
  
      @Override
      protected IpmiPayload preparePayload(int sequenceNumber)
              throws NoSuchAlgorithmException, InvalidKeyException {
          return new IpmiLanRequest(getNetworkFunction(), getCommandCode(), null,
                  TypeConverter.intToByte(sequenceNumber));
      }
  
      @Override
      public ResponseData getResponseData(IpmiMessage message) throws IPMIException, NoSuchAlgorithmException, InvalidKeyException {
          if (!isCommandResponse(message)) {
              throw new IllegalArgumentException(
                      "This is not a response for Get SEL Info command");
          }
          if (!(message.getPayload() instanceof IpmiLanResponse)) {
              throw new IllegalArgumentException("Invalid response payload");
          }
          if (((IpmiLanResponse) message.getPayload()).getCompletionCode() != CompletionCode.Ok) {
              throw new IPMIException(
                      ((IpmiLanResponse) message.getPayload())
                              .getCompletionCode());
          }
  
          byte[] raw = message.getPayload().getIpmiCommandData();
  
          if (raw == null || raw.length != 14) {
              throw new IllegalArgumentException("Invalid response payload length: " + (raw != null ? raw.length : "null"));
         }
 
         GetSelInfoResponseData responseData = new GetSelInfoResponseData();
 
         responseData.setSelVersion(TypeConverter
                 .littleEndianBcdByteToInt(raw[0]));
 
         byte[] buffer = new byte[4];
 
         buffer[0] = raw[1];
         buffer[1] = raw[2];
         buffer[2] = 0;
         buffer[3] = 0;
 
         responseData.setEntriesCount(TypeConverter
                 .littleEndianByteArrayToInt(buffer));
 
         System.arraycopy(raw, 5, buffer, 0, 4);
 
         responseData.setAdditionTimestamp(TypeConverter
                 .decodeDate(TypeConverter.littleEndianByteArrayToInt(buffer)));
 
         System.arraycopy(raw, 9, buffer, 0, 4);
 
         responseData.setEraseTimestamp(TypeConverter.decodeDate(TypeConverter
                 .littleEndianByteArrayToInt(buffer)));
 
         return responseData;
     }
 
 }