/*
    * Copyright 2021 the original author or authors.
    *
    * 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.bremersee.security.core.userdetails;
  
  import java.util.HashSet;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  import lombok.AccessLevel;
  import lombok.Getter;
  import lombok.ToString;
  import org.bremersee.data.ldaptive.LdaptiveEntryMapper;
  import org.ldaptive.SearchScope;
  import org.springframework.security.core.userdetails.UserDetails;
  import org.springframework.util.StringUtils;
  
  /**
   * The abstract user details service.
   *
   * @author Christian Bremer
   */
  @ToString
  public abstract class AbstractUserDetailsService {
  
    @Getter(value = AccessLevel.PROTECTED)
    private final String userBaseDn;
  
    @Getter(value = AccessLevel.PROTECTED)
    private final String userFindOneFilter;
  
    @Getter(value = AccessLevel.PROTECTED)
    private final SearchScope userFindOneSearchScope;
  
    @Getter(value = AccessLevel.PROTECTED)
    private final String userAccountControlAttributeName;
  
    @Getter(value = AccessLevel.PROTECTED)
    private final List<String> authorities;
  
    @Getter(value = AccessLevel.PROTECTED)
    private final String authorityAttributeName;
  
    @Getter(value = AccessLevel.PROTECTED)
    private final boolean authorityDn;
  
    @Getter(value = AccessLevel.PROTECTED)
    private final Map<String, String> authorityMap;
  
    @Getter(value = AccessLevel.PROTECTED)
    private final String authorityPrefix;
  
    /**
     * Instantiates a new abstract user details service.
     *
     * @param userBaseDn the user base dn
     * @param userFindOneFilter the user find one filter
     * @param userFindOneSearchScope the user find one search scope
     * @param userAccountControlAttributeName the user account control attribute name
     * @param authorities the authorities
     * @param authorityAttributeName the authority attribute name
     * @param authorityDn the authority dn
     * @param authorityMap the authority map
     * @param authorityPrefix the authority prefix
     */
    public AbstractUserDetailsService(
        String userBaseDn,
        String userFindOneFilter,
        SearchScope userFindOneSearchScope,
        String userAccountControlAttributeName,
        List<String> authorities,
        String authorityAttributeName,
        boolean authorityDn,
        Map<String, String> authorityMap,
        String authorityPrefix) {
  
      this.userBaseDn = userBaseDn;
      this.userFindOneFilter = userFindOneFilter;
      this.userFindOneSearchScope = userFindOneSearchScope != null ? userFindOneSearchScope : SearchScope.ONELEVEL;
      this.userAccountControlAttributeName = userAccountControlAttributeName;
      this.authorities = authorities;
      this.authorityAttributeName = authorityAttributeName;
      this.authorityDn = authorityDn;
      this.authorityMap = authorityMap;
      this.authorityPrefix = authorityPrefix;
    }
 
   /**
    * Return attributes.
    *
    * @return the attributes
    */
   protected Set<String> returnAttributes() {
     Set<String> attributes = new HashSet<>();
     if (StringUtils.hasText(userAccountControlAttributeName)) {
       attributes.add(userAccountControlAttributeName);
     }
     if (StringUtils.hasText(authorityAttributeName)) {
       attributes.add(authorityAttributeName);
     }
     return attributes;
   }
 
   /**
    * Gets user details mapper.
    *
    * @param userName the user name
    * @return the user details mapper
    */
   protected LdaptiveEntryMapper<UserDetails> getUserDetailsLdapMapper(String userName) {
     return new UserDetailsLdapMapper(
         userName,
         userAccountControlAttributeName,
         authorities,
         authorityAttributeName,
         authorityDn,
         authorityMap,
         authorityPrefix);
   }
 
 }