package org.metricshub.ipmi.core.sm.states;
   
   /*-
    * ╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲
    * 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.session.GetChannelAuthenticationCapabilities;
  import org.metricshub.ipmi.core.coding.payload.lan.IpmiLanResponse;
  import org.metricshub.ipmi.core.coding.protocol.AuthenticationType;
  import org.metricshub.ipmi.core.coding.protocol.IpmiMessage;
  import org.metricshub.ipmi.core.coding.protocol.decoder.ProtocolDecoder;
  import org.metricshub.ipmi.core.coding.protocol.decoder.Protocolv15Decoder;
  import org.metricshub.ipmi.core.coding.rmcp.RmcpMessage;
  import org.metricshub.ipmi.core.common.TypeConverter;
  import org.metricshub.ipmi.core.sm.StateMachine;
  import org.metricshub.ipmi.core.sm.actions.ErrorAction;
  import org.metricshub.ipmi.core.sm.actions.ResponseAction;
  import org.metricshub.ipmi.core.sm.events.AuthenticationCapabilitiesReceived;
  import org.metricshub.ipmi.core.sm.events.StateMachineEvent;
  import org.metricshub.ipmi.core.sm.events.Timeout;
  
  /**
   * Waiting for the {@link GetChannelAuthenticationCapabilities} response. <br>
   * 
   * Transition to: <ul> <li>{@link Ciphers} on {@link Timeout} </li><li>{@link Authcap} on
   * {@link AuthenticationCapabilitiesReceived}</li></ul>.
   */
  public class AuthcapWaiting extends State {
  
      private int tag;
  
      /**
       * Instantiates a new {@link AuthcapWaiting} using the given tag 
       * @param tag int value representing the authentication capabilities
       */
      public AuthcapWaiting(int tag) {
          this.tag = tag;
      }
  
      @Override
      public void doTransition(StateMachine stateMachine,
              StateMachineEvent machineEvent) {
          if (machineEvent instanceof Timeout) {
              stateMachine.setCurrent(new Ciphers());
          } else if (machineEvent instanceof AuthenticationCapabilitiesReceived) {
              stateMachine.setCurrent(new Authcap());
          } else {
              stateMachine.doExternalAction(new ErrorAction(
                      new IllegalArgumentException("Invalid transition")));
          }
      }
  
      @Override
      public void doAction(StateMachine stateMachine, RmcpMessage message) {
          if (ProtocolDecoder.decodeAuthenticationType(message) == AuthenticationType.RMCPPlus) {
              return; // this isn't IPMI v1.5 message so we ignore it
          }
          Protocolv15Decoder decoder = new Protocolv15Decoder();
          IpmiMessage ipmiMessage = null;
          try {
              ipmiMessage = decoder.decode(message);
              GetChannelAuthenticationCapabilities capabilities = new GetChannelAuthenticationCapabilities();
              if (capabilities.isCommandResponse(ipmiMessage)
                      && TypeConverter.byteToInt(((IpmiLanResponse) ipmiMessage
                              .getPayload()).getSequenceNumber()) == tag) {
                  stateMachine.doExternalAction(new ResponseAction(capabilities
                          .getResponseData(ipmiMessage)));
              }
          } catch (Exception e) {
              stateMachine.doExternalAction(new ErrorAction(e));
          }
      }
  
  }