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/*
 * Copyright lzhpo
 *
 * 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 com.lzhpo.sensitive;

import cn.hutool.core.util.ArrayUtil;
import com.alibaba.fastjson.serializer.SerializeFilter;
import com.alibaba.fastjson.support.config.FastJsonConfig;
import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
import com.lzhpo.sensitive.serializer.FastJsonSensitiveValueFilter;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanPostProcessor;

/**
 * @author lzhpo
 */
@Slf4j
public class FastJsonBeanPostProcessor implements BeanPostProcessor {

    @Override
    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
        if (bean instanceof FastJsonHttpMessageConverter fastJsonConverter) {
            FastJsonConfig fastJsonConfig = fastJsonConverter.getFastJsonConfig();
            SerializeFilter[] oldFilters = fastJsonConfig.getSerializeFilters();

            SerializeFilter[] injectFilters = {new FastJsonSensitiveValueFilter()};
            SerializeFilter[] newFilters = ArrayUtil.addAll(oldFilters, injectFilters);
            fastJsonConfig.setSerializeFilters(newFilters);

            log.info(
                    "Injected [{}] WriterFilter to [{}]",
                    FastJsonSensitiveValueFilter.class.getName(),
                    FastJsonHttpMessageConverter.class.getName());

            return fastJsonConverter;
        }
        return bean;
    }
}