package org.metricshub.ipmi.core.coding.commands.payload;
   
   /*-
    * ╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲╱╲
    * 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.ResponseData;
  import org.metricshub.ipmi.core.common.TypeConverter;
  
  import java.util.LinkedList;
  import java.util.List;
  
  /**
   * Wrapper for Get Payload Activation Status response.
   */
  public class GetPayloadActivationStatusResponseData implements ResponseData {
  
      /**
       * Number of instances of given payload type that can be simultaneously activated on BMC.
       */
      private byte instanceCapacity;
  
      /**
       * List of instance ID's that are still available (not activated).
       */
      private List<Byte> availableInstances;
  
      public byte getInstanceCapacity() {
          return instanceCapacity;
      }
  
      public void setInstanceCapacity(byte instanceCapacity) {
          this.instanceCapacity = instanceCapacity;
      }
  
      public List<Byte> getAvailableInstances() {
          List<Byte> actuallyAvailableInstances = new LinkedList<Byte>();
  
          for (Byte instanceId : availableInstances) {
              if (instanceId <= instanceCapacity) {
                  actuallyAvailableInstances.add(instanceId);
              }
          }
  
          return actuallyAvailableInstances;
      }
  
      public void setAvailableInstances(byte[] availableInstancesData) {
          this.availableInstances = getAvailableInstancesFromBytes(availableInstancesData);
      }
  
      private List<Byte> getAvailableInstancesFromBytes(byte[] availableInstancesData) {
          List<Byte> result = new LinkedList<Byte>();
  
          List<Byte> instancesFromFirstByte = checkForAvailableInstancesInByte(availableInstancesData[0], 0);
          List<Byte> instancesFromSecondByte = checkForAvailableInstancesInByte(availableInstancesData[1], 8);
  
          result.addAll(instancesFromFirstByte);
          result.addAll(instancesFromSecondByte);
  
          return result;
      }
  
      private List<Byte> checkForAvailableInstancesInByte(byte availableInstancesByte, int instanceIdOffset) {
          List<Byte> result = new LinkedList<Byte>();
  
          for (int i = 0; i < 8; ++i) {
              if (!TypeConverter.isBitSetOnPosition(i, availableInstancesByte)) {
                  result.add((byte) (i + 1 + instanceIdOffset));
              }
          }
  
          return result;
      }
  
      @Override
      public String toString() {
          return "GetPayloadActivationStatusResponseData{" +
                  "instanceCapacity=" + getInstanceCapacity() +
                  ", availableInstances=" + getAvailableInstances() +
                  '}';
     }
 }