/*
 * Copyright (C) 2003-2011 eXo Platform SAS.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

package org.exoplatform.social.core.storage.api;

import org.exoplatform.social.core.identity.SpaceMemberFilterListAccess;
import org.exoplatform.social.core.identity.model.Identity;
import org.exoplatform.social.core.identity.model.Profile;
import org.exoplatform.social.core.profile.ProfileFilter;
import org.exoplatform.social.core.space.model.Space;
import org.exoplatform.social.core.storage.IdentityStorageException;
import org.exoplatform.social.core.storage.exception.NodeNotFoundException;

import java.util.List;

/**
 * @author <a href="mailto:alain.defrance@exoplatform.com">Alain Defrance</a>
 * @version $Revision$
 */
public interface IdentityStorage {

  /**
   * Saves identity.
   *
   * @param identity the identity
   * @throws IdentityStorageException
   */
  public void saveIdentity(final Identity identity) throws IdentityStorageException;

  /**
   * Updates existing identity's properties.
   *
   * @param identity the identity to be updated.
   * @return the updated identity.
   * @throws IdentityStorageException
   * @since  1.2.0-GA
   */
  public Identity updateIdentity(final Identity identity) throws IdentityStorageException;

  /**
   * Gets the identity by his id.
   *
   * @param nodeId the id of identity
   * @return the identity
   * @throws IdentityStorageException
   */
  public Identity findIdentityById(final String nodeId) throws IdentityStorageException;

  /**
   * Deletes an identity from JCR
   *
   * @param identity
   * @throws IdentityStorageException
   */
  public void deleteIdentity(final Identity identity) throws IdentityStorageException;

  /**
   * Load profile.
   *
   * @param profile the profile
   * @throws IdentityStorageException
   */
  public Profile loadProfile(Profile profile) throws IdentityStorageException;

  /**
   * Gets the identity by remote id.
   *
   * @param providerId the identity provider
   * @param remoteId   the id
   * @return the identity by remote id
   * @throws IdentityStorageException
   */
  public Identity findIdentity(final String providerId, final String remoteId) throws IdentityStorageException;

  /**
   * Saves profile.
   *
   * @param profile the profile
   * @throws IdentityStorageException
   */
  public void saveProfile(final Profile profile) throws IdentityStorageException;

  /**
   * Updates profile.
   *
   * @param profile the profile
   * @throws IdentityStorageException
   * @since 1.2.0-GA
   */
  public void updateProfile(final Profile profile) throws IdentityStorageException;

  /**
   * Gets total number of identities in storage depend on providerId.
   * @throws IdentityStorageException
   */
  public int getIdentitiesCount (final String providerId) throws IdentityStorageException;

  /**
   * Gets the identities by profile filter.
   *
   * @param providerId Id of provider.
   * @param profileFilter    Information of profile that used in filtering.
   * @param offset           Start index of list to be get.
   * @param limit            End index of list to be get.
   * @param forceLoadOrReloadProfile Load profile or not.
   * @return the identities by profile filter.
   * @throws IdentityStorageException
   * @since 1.2.0-GA
   */
  public List<Identity> getIdentitiesByProfileFilter(
      final String providerId, final ProfileFilter profileFilter, long offset, long limit,
      boolean forceLoadOrReloadProfile)
      throws IdentityStorageException;

  /**
   * Counts the number of identity by profile filter.
   *
   * @param providerId Id of Provider.
   * @param profileFilter Information of profile are used in filtering.
   * @return Number of identities that are filtered by profile.
   * @throws IdentityStorageException
   * @since 1.2.0-GA
   */
  public int getIdentitiesByProfileFilterCount(final String providerId, final ProfileFilter profileFilter)
      throws IdentityStorageException;

  /**
   * Counts the number of identities that match the first character of name.
   *
   * @param providerId
   * @param profileFilter Profile filter object.
   * @return Number of identities that start with the first character of name.
   * @throws IdentityStorageException
   * @since 1.2.0-GA
   */
  public int getIdentitiesByFirstCharacterOfNameCount(final String providerId, final ProfileFilter profileFilter)
      throws IdentityStorageException;

  /**
   * Gets the identities that match the first character of name.
   *
   * @param providerId Id of provider.
   * @param profileFilter Profile filter object.
   * @param offset   Start index of list to be get.
   * @param limit    End index of list to be get.
   * @param forceLoadOrReloadProfile Load profile or not.
   * @return Identities that have name start with the first character.
   * @throws IdentityStorageException
   * @since 1.2.0-GA
   */
  public List<Identity> getIdentitiesByFirstCharacterOfName(final String providerId, final ProfileFilter profileFilter,
      long offset, long limit, boolean forceLoadOrReloadProfile) throws IdentityStorageException;

  /**
   * Gets the type.
   *
   * @param nodetype the nodetype
   * @param property the property
   * @return the type
   * @throws IdentityStorageException
   */
  public String getType(final String nodetype, final String property);

  /**
   * Add or modify properties of profile and persist to JCR. Profile parameter is a lightweight that
   * contains only the property that you want to add or modify. NOTE: The method will
   * not delete the properties on old profile when the param profile have not those keys.
   *
   * @param profile
   * @throws IdentityStorageException
   */
  public void addOrModifyProfileProperties(final Profile profile) throws IdentityStorageException;
  
  /**
   * get Space's member Identity and filter it by Profile Filter
   * @param space
   * @param providerId
   * @param profileFilter
   * @param offset
   * @param limit
   * @return
   * @throws IdentityStorageException
   * @throws NodeNotFoundException
   */
  public List<Identity> getSpaceMemberIdentitiesByProfileFilter(final Space space, 
                                                                final ProfileFilter profileFilter,
                                                                SpaceMemberFilterListAccess.Type type,
                                                                long offset, long limit)
                                                                throws IdentityStorageException;


}
