/*
    * Copyright 2002-2013 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
    *
    *      https://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.springframework.security.oauth2.config.annotation.builders;
  
  import java.util.HashSet;
  import java.util.Set;
  
  import javax.sql.DataSource;
  
  import org.springframework.security.crypto.password.PasswordEncoder;
  import org.springframework.security.oauth2.provider.ClientDetails;
  import org.springframework.security.oauth2.provider.ClientDetailsService;
  import org.springframework.security.oauth2.provider.client.JdbcClientDetailsService;
  import org.springframework.util.Assert;
  
  /**
   * @author Dave Syer
   * 
   */
  public class JdbcClientDetailsServiceBuilder extends ClientDetailsServiceBuilder<JdbcClientDetailsServiceBuilder> {
  
  	private Set<ClientDetails> clientDetails = new HashSet<ClientDetails>();
  
  	private DataSource dataSource;
  
  	private PasswordEncoder passwordEncoder; // for writing client secrets
  
  	public JdbcClientDetailsServiceBuilder dataSource(DataSource dataSource) {
  		this.dataSource = dataSource;
  		return this;
  	}
  
  	public JdbcClientDetailsServiceBuilder passwordEncoder(PasswordEncoder passwordEncoder) {
  		this.passwordEncoder = passwordEncoder;
  		return this;
  	}
  
  	@Override
  	protected void addClient(String clientId, ClientDetails value) {
  		clientDetails.add(value);
  	}
  
  	@Override
  	protected ClientDetailsService performBuild() {
  		Assert.state(dataSource != null, "You need to provide a DataSource");
  		JdbcClientDetailsService clientDetailsService = new JdbcClientDetailsService(dataSource);
  		if (passwordEncoder != null) {
  			// This is used to encode secrets as they are added to the database (if it isn't set then the user has top
  			// pass in pre-encoded secrets)
  			clientDetailsService.setPasswordEncoder(passwordEncoder);
  		}
  		for (ClientDetails client : clientDetails) {
  			clientDetailsService.addClientDetails(client);
  		}
  		return clientDetailsService;
  	}
  
  }