package org.apache.maven.shared.utils.logging;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF 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.
   */
  
  import org.fusesource.jansi.Ansi;
  import org.fusesource.jansi.Ansi.Color;
  
  import java.util.Locale;
  
  /**
   * Configurable message styles.
   */
  enum Style
  {
  
      DEBUG(   "bold,cyan"   ),
      INFO(    "bold,blue"   ),
      WARNING( "bold,yellow" ),
      ERROR(   "bold,red"    ),
      SUCCESS( "bold,green"  ),
      FAILURE( "bold,red"    ),
      STRONG(  "bold"        ),
      MOJO(    "green"       ),
      PROJECT( "cyan"        );
  
      private final boolean bold;
  
      private final boolean bright;
  
      private final Color color;
  
      private final boolean bgBright;
  
      private final Color bgColor;
  
      Style( String defaultValue )
      {
          boolean currentBold = false;
          boolean currentBright = false;
          Color currentColor = null;
          boolean currentBgBright = false;
          Color currentBgColor = null;
  
          String value = System.getProperty( "style." + name().toLowerCase( Locale.ENGLISH ),
                                             defaultValue ).toLowerCase( Locale.ENGLISH );
  
          for ( String token : value.split( "," ) )
          {
              if ( "bold".equals( token ) )
              {
                  currentBold = true;
              }
              else if ( token.startsWith( "bg" ) )
              {
                  token = token.substring( 2 );
                  if ( token.startsWith( "bright" ) )
                  {
                      currentBgBright = true;
                      token = token.substring( 6 );
                  }
                  currentBgColor = toColor( token );
              }
              else
              {
                  if ( token.startsWith( "bright" ) )
                  {
                      currentBright = true;
                      token = token.substring( 6 );
                  }
                  currentColor = toColor( token );
              }
          }
  
          this.bold = currentBold;
          this.bright = currentBright;
          this.color = currentColor;
          this.bgBright = currentBgBright;
          this.bgColor = currentBgColor;
      }
  
      private static Color toColor( String token )
      {
         for ( Color color : Color.values() )
         {
             if ( color.toString().equalsIgnoreCase( token ) )
             {
                 return color;
             }
         }
         return null;
     }
 
     Ansi apply( Ansi ansi )
     {
         if ( bold )
         {
             ansi.bold();
         }
         if ( color != null )
         {
             if ( bright )
             {
                 ansi.fgBright( color );
             }
             else
             {
                 ansi.fg( color );
             }
         }
         if ( bgColor != null )
         {
             if ( bgBright )
             {
                 ansi.bgBright( bgColor );
             }
             else
             {
                 ansi.bg( bgColor );
             }
         }
         return ansi;
     }
 
     @Override
     public String toString()
     {
         if ( !bold && color == null && bgColor == null )
         {
             return name();
         }
         StringBuilder sb = new StringBuilder( name() + '=' );
         if ( bold )
         {
             sb.append( "bold" );
         }
         if ( color != null )
         {
             if ( sb.length() > 0 )
             {
                 sb.append(  ',' );
             }
             if ( bright )
             {
                 sb.append( "bright" );
             }
             sb.append( color.name() );
         }
         if ( bgColor != null )
         {
             if ( sb.length() > 0 )
             {
                 sb.append(  ',' );
             }
             sb.append( "bg" );
             if ( bgBright )
             {
                 sb.append( "bright" );
             }
             sb.append( bgColor.name() );
         }
         return sb.toString();
     }
 
 }