/*
    * Copyright (c) 2002-2017, 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.mylutece.modules.openiddatabase.authentication.business;
  
  import fr.paris.lutece.plugins.mylutece.modules.openiddatabase.authentication.BaseUser;
  import fr.paris.lutece.portal.service.plugin.Plugin;
  import fr.paris.lutece.portal.service.security.LuteceAuthentication;
  import fr.paris.lutece.portal.service.security.LuteceUser;
  import fr.paris.lutece.util.sql.DAOUtil;
  
  import java.util.ArrayList;
  import java.util.Collection;
  
  
  /**
   * This class provides Data Access methods for authentication (role retrieval).
   *
   */
  public class OpenIdDatabaseDAO implements IManageUsers
  {
      private static final String SQL_QUERY_FIND_USER_BY_LOGIN = "SELECT mylutece_database_openid_user_id, login, name_family, name_given, email, authen_type" +
          " FROM mylutece_database_openid_user WHERE login like ? ";
      private static final String SQL_QUERY_FIND_ROLES_FROM_LOGIN = "SELECT b.role_key FROM mylutece_database_openid_user a, mylutece_database_openid_user_role b" +
          " WHERE a.mylutece_database_openid_user_id = b.mylutece_database_openid_user_id AND a.login like ? ";
      private static final String SQL_QUERY_DELETE_ROLES_FOR_USER = "DELETE FROM mylutece_database_openid_user_role WHERE mylutece_database_openid_user_id = ?";
      private static final String SQL_QUERY_INSERT_ROLE_FOR_USER = "INSERT INTO mylutece_database_openid_user_role ( mylutece_database_openid_user_id, role_key ) VALUES ( ?, ? ) ";
      private static final String SQL_QUERY_FIND_GROUPS_FROM_LOGIN = "SELECT b.group_key FROM mylutece_database_openid_user a, mylutece_database_openid_user_group b" +
          " WHERE a.mylutece_database_openid_user_id = b.mylutece_database_openid_user_id AND a.login like ? ";
      private static final String SQL_QUERY_DELETE_GROUPS_FOR_USER = "DELETE FROM mylutece_database_openid_user_group WHERE mylutece_database_openid_user_id = ?";
      private static final String SQL_QUERY_INSERT_GROUP_FOR_USER = "INSERT INTO mylutece_database_openid_user_group ( mylutece_database_openid_user_id, group_key ) VALUES ( ?, ? ) ";
      private static final String SQL_QUERY_SELECTALL = " SELECT mylutece_database_openid_user_id, login, name_family, name_given, email,authen_type FROM mylutece_database_openid_user ";
  
      /** This class implements the Singleton design pattern. */
      private static OpenIdDatabaseDAO _dao = new OpenIdDatabaseDAO(  );
  
      /**
       * Returns the unique instance of the singleton.
       *
       * @return the instance
       */
      static OpenIdDatabaseDAO getInstance(  )
      {
          return _dao;
      }
  
      /**
       * Find DatabaseUser by login
       *
       * @param strLogin the login
       * @param plugin The Plugin using this data access service
       * @param authenticationService the LuteceAuthentication object
       * @return DatabaseUser the user corresponding to the login
       */
      public BaseUser selectLuteceUserByLogin( String strLogin, Plugin plugin, LuteceAuthentication authenticationService )
      {
          DAOUtil daoUtil = new DAOUtil( SQL_QUERY_FIND_USER_BY_LOGIN, plugin );
          daoUtil.setString( 1, strLogin );
          daoUtil.executeQuery(  );
  
          if ( !daoUtil.next(  ) )
          {
              daoUtil.free(  );
  
              return null;
          }
  
          String strLastName = daoUtil.getString( 3 );
          String strFirstName = daoUtil.getString( 4 );
         String strEmail = daoUtil.getString( 5 );
         String strAuthentificationType = daoUtil.getString( 6 );
 
         BaseUser user = new BaseUser( strLogin, authenticationService );
 
         user.setUserInfo( LuteceUser.NAME_FAMILY, strLastName );
         user.setUserInfo( LuteceUser.NAME_GIVEN, strFirstName );
         user.setUserInfo( LuteceUser.BUSINESS_INFO_ONLINE_EMAIL, strEmail );
         user.setUserInfo( BaseUser.AUTHENTICATION_TYPE, strAuthentificationType );
         daoUtil.free(  );
 
         return user;
     }
 
     /**
      * Load the list of {@link BaseUser}
      * @param plugin The Plugin using this data access service
      * @return The Collection of the {@link BaseUser}
      */
     public Collection<BaseUser> selectLuteceUserList( Plugin plugin, LuteceAuthentication authenticationService )
     {
         Collection<BaseUser> listBaseUsers = new ArrayList<BaseUser>(  );
         DAOUtil daoUtil = new DAOUtil( SQL_QUERY_SELECTALL, plugin );
         daoUtil.executeQuery(  );
 
         while ( daoUtil.next(  ) )
         {
             BaseUser user = new BaseUser( daoUtil.getString( 2 ), authenticationService );
             user.setUserInfo( LuteceUser.NAME_FAMILY, daoUtil.getString( 3 ) );
             user.setUserInfo( LuteceUser.NAME_GIVEN, daoUtil.getString( 4 ) );
             user.setUserInfo( LuteceUser.BUSINESS_INFO_ONLINE_EMAIL, daoUtil.getString( 5 ) );
             user.setUserInfo( BaseUser.AUTHENTICATION_TYPE, daoUtil.getString( 6 ) );
             listBaseUsers.add( user );
         }
 
         daoUtil.free(  );
 
         return listBaseUsers;
     }
 
     /**
      * Find user's roles by login
      *
      * @param strLogin the login
      * @param plugin The Plugin using this data access service
      * @return ArrayList the roles key list corresponding to the login
      */
     public ArrayList<String> selectUserRolesFromLogin( String strLogin, Plugin plugin )
     {
         ArrayList<String> arrayRoles = new ArrayList<String>(  );
         DAOUtil daoUtil = new DAOUtil( SQL_QUERY_FIND_ROLES_FROM_LOGIN, plugin );
         daoUtil.setString( 1, strLogin );
         daoUtil.executeQuery(  );
 
         while ( daoUtil.next(  ) )
         {
             arrayRoles.add( daoUtil.getString( 1 ) );
         }
 
         daoUtil.free(  );
 
         return arrayRoles;
     }
 
     /**
      * Delete roles for a user
      * @param nIdUser The id of the user
      * @param plugin The Plugin using this data access service
      */
     public void deleteRolesForUser( int nIdUser, Plugin plugin )
     {
         DAOUtil daoUtil = new DAOUtil( SQL_QUERY_DELETE_ROLES_FOR_USER, plugin );
         daoUtil.setInt( 1, nIdUser );
 
         daoUtil.executeUpdate(  );
         daoUtil.free(  );
     }
 
     /**
      * Assign a role to user
      * @param nIdUser The id of the user
      * @param strRoleKey The key of the role
      * @param plugin The Plugin using this data access service
      */
     public void createRoleForUser( int nIdUser, String strRoleKey, Plugin plugin )
     {
         DAOUtil daoUtil = new DAOUtil( SQL_QUERY_INSERT_ROLE_FOR_USER, plugin );
         daoUtil.setInt( 1, nIdUser );
         daoUtil.setString( 2, strRoleKey );
 
         daoUtil.executeUpdate(  );
         daoUtil.free(  );
     }
 
     /**
      * Find user's groups by login
      *
      * @param strLogin The login
      * @param plugin The Plugin using this data access service
      * @return ArrayList the group key list corresponding to the login
      */
     public ArrayList<String> selectUserGroupsFromLogin( String strLogin, Plugin plugin )
     {
         ArrayList<String> arrayGroups = new ArrayList<String>(  );
         DAOUtil daoUtil = new DAOUtil( SQL_QUERY_FIND_GROUPS_FROM_LOGIN, plugin );
         daoUtil.setString( 1, strLogin );
         daoUtil.executeQuery(  );
 
         while ( daoUtil.next(  ) )
         {
             arrayGroups.add( daoUtil.getString( 1 ) );
         }
 
         daoUtil.free(  );
 
         return arrayGroups;
     }
 
     /**
      * Delete groups for a user
      * @param nIdUser The id of the user
      * @param plugin The Plugin using this data access service
      */
     public void deleteGroupsForUser( int nIdUser, Plugin plugin )
     {
         DAOUtil daoUtil = new DAOUtil( SQL_QUERY_DELETE_GROUPS_FOR_USER, plugin );
         daoUtil.setInt( 1, nIdUser );
 
         daoUtil.executeUpdate(  );
         daoUtil.free(  );
     }
 
     /**
      * Assign a group to user
      * @param nIdUser The id of the user
      * @param strGroupKey The key of the group
      * @param plugin The Plugin using this data access service
      */
     public void createGroupForUser( int nIdUser, String strGroupKey, Plugin plugin )
     {
         DAOUtil daoUtil = new DAOUtil( SQL_QUERY_INSERT_GROUP_FOR_USER, plugin );
         daoUtil.setInt( 1, nIdUser );
         daoUtil.setString( 2, strGroupKey );
 
         daoUtil.executeUpdate(  );
         daoUtil.free(  );
     }
 }