/*
    * This file is part of ***  M y C o R e  ***
    * See http://www.mycore.de/ for details.
    *
    * MyCoRe is free software: you can redistribute it and/or modify
    * it under the terms of the GNU General Public License as published by
    * the Free Software Foundation, either version 3 of the License, or
    * (at your option) any later version.
    *
   * MyCoRe 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 Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with MyCoRe.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package org.mycore.user2.login;
  
  import java.util.Collection;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Set;
  
  import org.mycore.common.MCRUserInformation;
  import org.mycore.user2.MCRRealm;
  import org.mycore.user2.MCRRealmFactory;
  import org.mycore.user2.MCRUserAttributeMapper;
  import org.mycore.user2.annotation.MCRUserAttribute;
  import org.mycore.user2.annotation.MCRUserAttributeJavaConverter;
  import org.mycore.user2.utils.MCRRolesConverter;
  
  /**
   * 
   * @author Ren\u00E9 Adler (eagle)
   */
  public class MCRShibbolethUserInformation implements MCRUserInformation {
      private String userId;
  
      private String realmId;
  
      private Map<String, Object> attributes;
  
      @MCRUserAttribute
      private String realName;
  
      private Set<String> roles = new HashSet<>();
  
      public MCRShibbolethUserInformation(String userId, String realmId, Map<String, Object> attributes)
          throws Exception {
          this.userId = userId;
          this.realmId = realmId;
          this.attributes = attributes;
  
          MCRUserAttributeMapper attributeMapper = MCRRealmFactory.getAttributeMapper(this.realmId);
          if (attributeMapper != null) {
              attributeMapper.mapAttributes(this, attributes);
          }
      }
  
      /* (non-Javadoc)
       * @see org.mycore.common.MCRUserInformation#getUserID()
       */
      @Override
      public String getUserID() {
          return userId + "@" + realmId;
      }
  
      /* (non-Javadoc)
       * @see org.mycore.common.MCRUserInformation#isUserInRole(java.lang.String)
       */
      @Override
      public boolean isUserInRole(String role) {
          return roles.contains(role);
      }
  
      /* (non-Javadoc)
       * @see org.mycore.common.MCRUserInformation#getUserAttribute(java.lang.String)
       */
      @Override
      public String getUserAttribute(String attribute) {
          String key;
          switch (attribute) {
          case MCRUserInformation.ATT_REAL_NAME:
              return this.realName;
          case MCRRealm.USER_INFORMATION_ATTR:
              return this.realmId;
          default:
              key = attribute;
              break;
          }
  
          Object value = attributes.get(key);
  
          return value != null ? value.toString() : null;
      }
  
      // This is used for MCRUserAttributeMapper
 
     Collection<String> getRoles() {
         return roles;
     }
 
     @MCRUserAttribute(name = "roles", separator = ";")
     @MCRUserAttributeJavaConverter(MCRRolesConverter.class)
     void setRoles(Collection<String> roles) {
         this.roles.addAll(roles);
     }
 }