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.Encoder;
  import org.metricshub.ipmi.core.coding.commands.IpmiVersion;
  import org.metricshub.ipmi.core.coding.commands.session.GetChannelAuthenticationCapabilities;
  import org.metricshub.ipmi.core.coding.protocol.encoder.Protocolv15Encoder;
  import org.metricshub.ipmi.core.coding.rmcp.RmcpMessage;
  import org.metricshub.ipmi.core.coding.security.CipherSuite;
  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.events.Default;
  import org.metricshub.ipmi.core.sm.events.StateMachineEvent;
  
  /**
   * State at which {@link CipherSuite} that will be used during the session is
   * already picked. Transition to {@link AuthcapWaiting} on {@link Default}. On
   * failure it is possible to retry by sending {@link Default} event again.
   */
  public class Ciphers extends State {
  
      @Override
      public void doTransition(StateMachine stateMachine,
              StateMachineEvent machineEvent) {
          if (machineEvent instanceof Default) {
              Default event = (Default) machineEvent;
              GetChannelAuthenticationCapabilities authCap = new GetChannelAuthenticationCapabilities(
                      IpmiVersion.V15, IpmiVersion.V20, event.getCipherSuite(),
                      event.getPrivilegeLevel(), TypeConverter.intToByte(0xe));
              try {
                  stateMachine.setCurrent(new AuthcapWaiting(event.getSequenceNumber()));
                  stateMachine.sendMessage(Encoder.encode(
                          new Protocolv15Encoder(), authCap, event.getSequenceNumber(),0,0));
              } catch (Exception e) {
                  stateMachine.setCurrent(this);
                  stateMachine.doExternalAction(new ErrorAction(e));
              }
          } else {
              stateMachine.doExternalAction(new ErrorAction(
                      new IllegalArgumentException("Invalid transition")));
          }
      }
  
      @Override
      public void doAction(StateMachine stateMachine, RmcpMessage message) {
          // No action is needed
      }
  
  }