/*
    * Copyright (C) 2013 4th Line GmbH, Switzerland
    *
    * The contents of this file are subject to the terms of either the GNU
    * Lesser General Public License Version 2 or later ("LGPL") or the
    * Common Development and Distribution License Version 1 or later
    * ("CDDL") (collectively, the "License"). You may not use this file
    * except in compliance with the License. See LICENSE.txt for more
    * information.
   *
   * 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.
   */
  
  package org.fourthline.cling.model.types;
  
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  /**
   * Representing the DLNA document and its version.
   * <p>
   * Someone ignored the device and service type construct of UPnP
   * and invented a new and of course much better device type/version  * construct.
   * </p>
   *
   * @author Christian Bauer
   */
  public class DLNADoc {
  
      public static final Pattern PATTERN = Pattern.compile("(.+?)[ -]([0-9].[0-9]{2})");
  
      public enum Version {
          V1_0("1.00"),
          V1_5("1.50");
  
          String s;
  
          Version(String s) {
              this.s = s;
          }
  
  
          @Override
          public String toString() {
              return s;
          }
      }
  
      final private String devClass;
      final private String version;
  
      public DLNADoc(String devClass, String version) {
          this.devClass = devClass;
          this.version = version;
      }
  
      public DLNADoc(String devClass, Version version) {
          this.devClass = devClass;
          this.version = version.s;
      }
  
      public String getDevClass() {
          return devClass;
      }
  
      public String getVersion() {
          return version;
      }
  
      public static DLNADoc valueOf(String s) throws InvalidValueException {
          Matcher matcher = PATTERN.matcher(s);
          if (matcher.matches()) {
              return new DLNADoc(matcher.group(1), matcher.group(2));
          } else {
              throw new InvalidValueException("Can't parse DLNADoc: " + s);
          }
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
  
          DLNADoc dlnaDoc = (DLNADoc) o;
  
          if (!devClass.equals(dlnaDoc.devClass)) return false;
          if (!version.equals(dlnaDoc.version)) return false;
  
          return true;
      }
  
      @Override
      public int hashCode() {
          int result = devClass.hashCode();
          result = 31 * result + version.hashCode();
          return result;
      }
 
     @Override
     public String toString() {
         return getDevClass() + "-" + getVersion();
     }
 }