package com.kxs.system.biz.config;

import cn.hutool.crypto.symmetric.AES;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.kxs.system.biz.event.SysLogListener;
import com.kxs.system.biz.filter.RequestDecoderFilter;
import com.kxs.common.core.constant.SecurityConstants;
import com.kxs.common.log.config.LxqLogProperties;
import com.kxs.system.biz.filter.ValidateCodeGatewayFilter;
import com.kxs.system.biz.service.SysLogService;
import lombok.RequiredArgsConstructor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.DependsOn;
import org.springframework.data.redis.core.RedisTemplate;


/**
 * @author lixueqiang
 */
@ComponentScan(basePackages = "com.kxs.system")
@MapperScan(basePackages = "com.kxs.system.biz.mapper")
@EnableConfigurationProperties({AesConfigProperties.class, GatewayConfigProperties.class})
@RequiredArgsConstructor
public class SysConfigAutoConfiguration {

    private final AesConfigProperties aesConfigProperties;

    private final GatewayConfigProperties gatewayConfigProperties;


    @Bean
    public SysLogListener sysLogListener(SysLogService sysLogService, LxqLogProperties logProperties) {
        return new SysLogListener(sysLogService, logProperties);
    }

    @Bean
    public FilterRegistrationBean<ValidateCodeGatewayFilter> imageCodeFilterRegistration(RedisTemplate<String, Object> redisTemplate, ObjectMapper objectMapper) {

        FilterRegistrationBean<ValidateCodeGatewayFilter> registration = new FilterRegistrationBean<>();
        registration.setFilter(new ValidateCodeGatewayFilter(redisTemplate, objectMapper, gatewayConfigProperties));
        registration.addUrlPatterns(SecurityConstants.OAUTH_TOKEN_URL);
        registration.setOrder(Integer.MIN_VALUE);
        return registration;
    }

    /**
     * 加解密过滤器
     */
    @Bean
    @ConditionalOnProperty(name = "gateway.aes.enabled", matchIfMissing = true)
    @DependsOn("cryptoAes")
    public FilterRegistrationBean<RequestDecoderFilter> requestDecoderFilterRegistration(AES cryptoAes, ObjectMapper objectMapper) {

        FilterRegistrationBean<RequestDecoderFilter> registration = new FilterRegistrationBean<>();
        registration.setFilter(new RequestDecoderFilter(cryptoAes, objectMapper, aesConfigProperties));
        registration.addUrlPatterns("/*");
        registration.setOrder(Integer.MIN_VALUE + 1);
        return registration;
    }

    /**
     * <p>
     * aes加密配置 此处设在配置类可以避免每次请求都去创建加密类，以此节约性能
     * </p>
     * @return {@link AES}
     */
    @Bean
    public AES cryptoAes() {
        return new AES(aesConfigProperties.getEncodeMode(), aesConfigProperties.getEncodePadding(),
                // 密钥，可以自定义
                aesConfigProperties.getEncodeKey().getBytes(),
                // iv加盐，按照实际需求添加
                aesConfigProperties.getEncodeIv().getBytes());
    }
}