/*
 * Copyright 2020-2030 码匠君<herodotus@aliyun.com>
 *
 * Dante Engine 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.
 *
 * Dante Engine 是 Dante Cloud 系统核心组件库，采用 APACHE LICENSE 2.0 开源协议，您在使用过程中，需要注意以下几点：
 *
 * 1. 请不要删除和修改根目录下的LICENSE文件。
 * 2. 请不要删除和修改 Dante Engine 源码头部的版权声明。
 * 3. 请保留源码和相关描述文件的项目出处，作者声明等。
 * 4. 分发源码时候，请注明软件出处 <https://gitee.com/dromara/dante-cloud>
 * 5. 在修改包名，模块名称，项目代码等时，请注明软件出处 <https://gitee.com/dromara/dante-cloud>
 * 6. 若您的项目无法满足以上几点，可申请商业授权
 */

package org.dromara.dante.oauth2.authentication.consumer;

import org.dromara.dante.oauth2.authentication.provider.OAuth2AuthorizationCodeAuthenticationProvider;
import org.dromara.dante.oauth2.authentication.provider.OAuth2ClientCredentialsAuthenticationProvider;
import org.dromara.dante.oauth2.authentication.utils.OAuth2ConfigurerUtils;
import org.dromara.dante.security.definition.ClientDetailsService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.core.session.SessionRegistry;
import org.springframework.security.oauth2.core.OAuth2Token;
import org.springframework.security.oauth2.server.authorization.OAuth2AuthorizationService;
import org.springframework.security.oauth2.server.authorization.token.OAuth2TokenGenerator;

import java.util.List;
import java.util.function.Consumer;

/**
 * <p>Description: SAS 扩展默认授权模式配置器 </p>
 * <p>
 * 用于替换 SAS 默认配置的 {@link  org.springframework.security.oauth2.server.authorization.authentication.OAuth2AuthorizationCodeAuthenticationProvider} 和
 * {@link  org.springframework.security.oauth2.server.authorization.authentication.OAuth2ClientCredentialsAuthenticationProvider}，以实现功能的扩展
 *
 * @author : gengwei.zheng
 * @date : 2023/9/1 11:33
 */
public class OAuth2TokenEndpointAuthenticationProviderConsumer implements Consumer<List<AuthenticationProvider>> {

    private static final Logger log = LoggerFactory.getLogger(OAuth2TokenEndpointAuthenticationProviderConsumer.class);

    private final HttpSecurity httpSecurity;
    private final SessionRegistry sessionRegistry;
    private final ClientDetailsService clientDetailsService;

    public OAuth2TokenEndpointAuthenticationProviderConsumer(HttpSecurity httpSecurity, SessionRegistry sessionRegistry, ClientDetailsService clientDetailsService) {
        this.httpSecurity = httpSecurity;
        this.sessionRegistry = sessionRegistry;
        this.clientDetailsService = clientDetailsService;
    }

    @Override
    public void accept(List<AuthenticationProvider> authenticationProviders) {

        OAuth2AuthorizationService authorizationService = OAuth2ConfigurerUtils.getAuthorizationService(httpSecurity);
        OAuth2TokenGenerator<? extends OAuth2Token> tokenGenerator = OAuth2ConfigurerUtils.getTokenGenerator(httpSecurity);

        // 删除 SAS 默认的 OAuth2AuthorizationCodeAuthenticationProvider
        authenticationProviders.removeIf(authenticationProvider ->
                authenticationProvider instanceof org.springframework.security.oauth2.server.authorization.authentication.OAuth2AuthorizationCodeAuthenticationProvider);

        OAuth2AuthorizationCodeAuthenticationProvider authorizationCodeProvider = new OAuth2AuthorizationCodeAuthenticationProvider(authorizationService, tokenGenerator);
        authorizationCodeProvider.setSessionRegistry(sessionRegistry);
        log.debug("[Herodotus] |- Custom OAuth2AuthorizationCodeAuthenticationProvider is in effect!");
        authenticationProviders.add(authorizationCodeProvider);

        // 删除 SAS 默认的 OAuth2ClientCredentialsAuthenticationProvider
        authenticationProviders.removeIf(authenticationProvider ->
                authenticationProvider instanceof org.springframework.security.oauth2.server.authorization.authentication.OAuth2ClientCredentialsAuthenticationProvider);

        OAuth2ClientCredentialsAuthenticationProvider clientCredentialsProvider = new OAuth2ClientCredentialsAuthenticationProvider(authorizationService, tokenGenerator, clientDetailsService);
        log.debug("[Herodotus] |- Custom OAuth2ClientCredentialsAuthenticationProvider is in effect!");
        authenticationProviders.add(clientCredentialsProvider);
    }
}
