package com.yiboshi.science.config.security;

import com.yiboshi.arch.exception.BusinessException;
import com.yiboshi.science.service.SystemSetService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.BeanIds;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.redis.RedisTokenStore;

/**
 * @author qyh
 */
@Configuration
@EnableWebSecurity
@EnableAuthorizationServer
@EnableGlobalMethodSecurity(prePostEnabled=true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserDetailsServiceImpl userDetailsService;

    @Autowired
    public RedisConnectionFactory redisConnectionFactory;

    @Autowired
    private SystemSetService systemSetService;

    @Bean
    public TokenStore tokenStore() {
        if (null == redisConnectionFactory) {
            throw new BusinessException("无法初始化RedisTokenStore,redisConnectionFactory为null");
        }
        //使用redis存储token
        RedisTokenStore redisTokenStore = new RedisTokenStore(redisConnectionFactory);
        //设置redis token存储中的前缀
        redisTokenStore.setPrefix("auth_token:");
        //自定义token生成
        redisTokenStore.setAuthenticationKeyGenerator(new AuthenticationKeyGenerator(systemSetService));
        return redisTokenStore;
//      return new InMemoryTokenStore();
    }

    @Bean(name = BeanIds.AUTHENTICATION_MANAGER)
    @Override
    protected AuthenticationManager authenticationManager() throws Exception {
        return super.authenticationManager();
    }

    @Bean
    @Override
    protected UserDetailsService userDetailsService() {
        return userDetailsService;
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean(name = "userLogoutSuccessHandler")
    public UserLogoutSuccessHandler userLogoutSuccessHandler() {
        return new UserLogoutSuccessHandler("/login", tokenStore());
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
    }
}