/*
    * Copyright 2012 The Netty Project
    *
    * The Netty Project 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 io.netty.handler.codec.socksx.v4;
  
  /**
   * The status of {@link Socks4CommandResponse}.
   */
  public class Socks4CommandStatus implements Comparable<Socks4CommandStatus> {
  
      public static final Socks4CommandStatus SUCCESS = new Socks4CommandStatus(0x5a, "SUCCESS");
      public static final Socks4CommandStatus REJECTED_OR_FAILED = new Socks4CommandStatus(0x5b, "REJECTED_OR_FAILED");
      public static final Socks4CommandStatus IDENTD_UNREACHABLE = new Socks4CommandStatus(0x5c, "IDENTD_UNREACHABLE");
      public static final Socks4CommandStatus IDENTD_AUTH_FAILURE = new Socks4CommandStatus(0x5d, "IDENTD_AUTH_FAILURE");
  
      public static Socks4CommandStatus valueOf(byte b) {
          switch (b) {
          case 0x5a:
              return SUCCESS;
          case 0x5b:
              return REJECTED_OR_FAILED;
          case 0x5c:
              return IDENTD_UNREACHABLE;
          case 0x5d:
              return IDENTD_AUTH_FAILURE;
          }
  
          return new Socks4CommandStatus(b);
      }
  
      private final byte byteValue;
      private final String name;
      private String text;
  
      public Socks4CommandStatus(int byteValue) {
          this(byteValue, "UNKNOWN");
      }
  
      public Socks4CommandStatus(int byteValue, String name) {
          if (name == null) {
              throw new NullPointerException("name");
          }
  
          this.byteValue = (byte) byteValue;
          this.name = name;
      }
  
      public byte byteValue() {
          return byteValue;
      }
  
      public boolean isSuccess() {
          return byteValue == 0x5a;
      }
  
      @Override
      public int hashCode() {
          return byteValue;
      }
  
      @Override
      public boolean equals(Object obj) {
          if (!(obj instanceof Socks4CommandStatus)) {
              return false;
          }
  
          return byteValue == ((Socks4CommandStatus) obj).byteValue;
      }
  
      @Override
      public int compareTo(Socks4CommandStatus o) {
          return byteValue - o.byteValue;
      }
  
      @Override
      public String toString() {
          String text = this.text;
          if (text == null) {
              this.text = text = name + '(' + (byteValue & 0xFF) + ')';
          }
          return text;
      }
  }