/*
    * Copyright 2012-2021 CodeLibs Project and the Others.
    *
    * Licensed 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.
   */
  package org.codelibs.fess.auth;
  
  import static org.codelibs.core.stream.StreamUtil.stream;
  
  import org.apache.commons.lang3.ArrayUtils;
  import org.codelibs.core.stream.StreamUtil.StreamOf;
  import org.codelibs.fess.auth.chain.AuthenticationChain;
  import org.codelibs.fess.es.user.exentity.User;
  
  public class AuthenticationManager {
  
      protected AuthenticationChain[] chains = new AuthenticationChain[0];
  
      public void insert(final User user) {
          chains().of(stream -> stream.forEach(c -> c.update(user)));
      }
  
      public boolean changePassword(final String username, final String password) {
          return chains().get(stream -> stream.allMatch(c -> c.changePassword(username, password)));
      }
  
      public void delete(final User user) {
          chains().of(stream -> stream.forEach(c -> c.delete(user)));
      }
  
      public User load(final User user) {
          User u = user;
          for (final AuthenticationChain chain : chains) {
              u = chain.load(u);
          }
          return u;
      }
  
      public void addChain(final AuthenticationChain chain) {
          chains = ArrayUtils.addAll(chains, chain);
      }
  
      protected StreamOf<AuthenticationChain> chains() {
          return stream(chains);
      }
  
  }