package cc.mrbird.febs.common.advise;

import cc.mrbird.febs.common.contants.AppContants;
import cn.hutool.crypto.SecureUtil;
import cn.hutool.crypto.asymmetric.KeyType;
import cn.hutool.crypto.asymmetric.RSA;
import com.alibaba.fastjson.JSONObject;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;

/**
 * @author wzy
 * @date 2022-06-14
 **/
@ControllerAdvice
public class MyResponseBodyAdvise implements ResponseBodyAdvice {

    @Value("${system.debug}")
    private boolean isDebug;

    @Override
    public boolean supports(MethodParameter methodParameter, Class aClass) {
        return true;
    }

    @Override
    public Object beforeBodyWrite(Object o, MethodParameter methodParameter, MediaType mediaType, Class aClass, ServerHttpRequest serverHttpRequest, ServerHttpResponse serverHttpResponse) {
        if (!AppContants.ENCRYPT_METHOD.contains(methodParameter.getMethod().getName()) || isDebug) {
            return o;
        }

        RSA rsa = new RSA(AppContants.RESP_PRIVATE_KEY, AppContants.RESP_PUBLIC_KEY);
        return rsa.encryptBase64(JSONObject.toJSONString(o), KeyType.PublicKey);
    }
}