/*
    * Copyright (c) 2002-2015, Mairie de Paris
    * All rights reserved.
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    *
    *  1. Redistributions of source code must retain the above copyright notice
   *     and the following disclaimer.
   *
   *  2. Redistributions in binary form must reproduce the above copyright notice
   *     and the following disclaimer in the documentation and/or other materials
   *     provided with the distribution.
   *
   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
   *     contributors may be used to endorse or promote products derived from
   *     this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   * License 1.0
   */
  package fr.paris.lutece.plugins.franceconnect.oidc.dataclient;
  
  import fr.paris.lutece.plugins.franceconnect.oidc.Token;
  import fr.paris.lutece.plugins.franceconnect.service.BearerTokenAuthenticator;
  import fr.paris.lutece.plugins.franceconnect.web.Constants;
  import fr.paris.lutece.util.httpaccess.HttpAccess;
  import fr.paris.lutece.util.httpaccess.HttpAccessException;
  import fr.paris.lutece.util.signrequest.RequestAuthenticator;
  
  import org.apache.log4j.Logger;
  
  import java.util.Iterator;
  import java.util.Set;
  
  
  /**
   * DataClient
   */
  public abstract class AbstractDataClient implements DataClient
  {
      protected static Logger _logger = Logger.getLogger( Constants.LOGGER_FRANCECONNECT );
      
      private static final char SEPARATOR = '+';
      
      private String _strName;
      private String _strRedirectUri;
      private String _strDataServerUri;
      private String _strTokenMethod;
      private Set<String> _scope;
      private Set<String> _acrValues;
  
      /**
       * {@inheritDoc }
       */
      @Override
      public String getName(  )
      {
          return _strName;
      }
  
      /**
       * {@inheritDoc }
       */
      @Override
      public void setName( String strName )
      {
          _strName = strName;
      }
  
      /**
       * {@inheritDoc }
       */
      @Override
      public Set getScope(  )
      {
          return _scope;
      }
  
      /**
       * {@inheritDoc }
       */
      @Override
      public void setScope( Set scope )
      {
          _scope = scope;
      }
 
     /**
      * {@inheritDoc }
      */
     @Override
     public String getScopes(  )
     {
         StringBuilder sbScopes = new StringBuilder(  );
 
         Iterator iterator = _scope.iterator(  );
         boolean bFirst = true;
 
         while ( iterator.hasNext(  ) )
         {
             if ( !bFirst )
             {
                 sbScopes.append( SEPARATOR );
             }
 
             bFirst = false;
             sbScopes.append( iterator.next(  ) );
         }
 
         return sbScopes.toString(  );
     }
 
     /**
      * {@inheritDoc }
      */
     @Override
     public String getRedirectUri(  )
     {
         return _strRedirectUri;
     }
 
     /**
      * {@inheritDoc }
      */
     @Override
     public void setRedirectUri( String strRedirectUri )
     {
         _strRedirectUri = strRedirectUri;
     }
 
     /**
      * {@inheritDoc }
      */
     @Override
     public Set getAcrValuesSet(  )
     {
         return _acrValues;
     }
 
     /**
      * {@inheritDoc }
      */
     @Override
     public void setAcrValuesSet( Set acrValues )
     {
         _acrValues = acrValues;
     }
 
     /**
      * {@inheritDoc }
      */
     @Override
     public String getAcrValues(  )
     {
         if( _acrValues==null || _acrValues.isEmpty() )
         {
             return null;
         }
         
         StringBuilder sbAcrValues = new StringBuilder(  );
 
         Iterator iterator = _acrValues.iterator(  );
         boolean bFirst = true;
 
         while ( iterator.hasNext(  ) )
         {
             if ( !bFirst )
             {
                 sbAcrValues.append( SEPARATOR );
             }
 
             bFirst = false;
             sbAcrValues.append( iterator.next(  ) );
         }
 
         return sbAcrValues.toString(  );
     }
 
     /**
      * {@inheritDoc }
      */
     @Override
     public String getDataServerUri(  )
     {
         return _strDataServerUri;
     }
 
     /**
      * {@inheritDoc }
      */
     @Override
     public void setDataServerUri( String strDataServerUri )
     {
         _strDataServerUri = strDataServerUri;
     }
 
     /**
      * {@inheritDoc }
      */
     @Override
     public String getTokenMethod(  )
     {
         return _strTokenMethod;
     }
 
     /**
      * {@inheritDoc }
      */
     @Override
     public void setTokenMethod( String strTokenMethod )
     {
         _strTokenMethod = strTokenMethod;
     }
 
     /**
      * Send an authenticated request with the access token to retreive data
      * @param token The token
      * @return The response
      */
     public String getData( Token token )
     {
         String strResponse = null;
         HttpAccess httpAccess = new HttpAccess(  );
 
         String strUrl = _strDataServerUri;
 
         try
         {
             RequestAuthenticator authenticator = new BearerTokenAuthenticator( token.getAccessToken(  ) );
             strResponse = httpAccess.doGet( strUrl, authenticator, null );
             _logger.debug( "FranceConnect response : " + strResponse );
         }
         catch ( HttpAccessException ex )
         {
             _logger.error( "OAuth Login Error" + ex.getMessage(  ), ex );
         }
 
         return strResponse;
     }
 }