package com.njcn.device.pms.api.fallback;

import com.njcn.common.pojo.enums.response.CommonResponseEnum;
import com.njcn.common.pojo.exception.BusinessException;
import com.njcn.common.pojo.response.HttpResult;
import com.njcn.device.pms.api.PmsPowerDistributionareaClient;
import com.njcn.device.pms.pojo.param.PowerDistributionareaParam;
import com.njcn.device.pms.pojo.po.PowerDistributionarea;
import com.njcn.device.pms.utils.PmsDeviceEnumUtil;
import feign.hystrix.FallbackFactory;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import java.util.List;

/**
 * @author clam
 * @date 2022/10/18
 */
@Slf4j
@Component
public class PmsPowerDistributionareaClientFallbackFactory implements FallbackFactory<PmsPowerDistributionareaClient> {

    @Override
    public PmsPowerDistributionareaClient create(Throwable throwable) {
        //判断抛出异常是否为解码器抛出的业务异常
        Enum<?> exceptionEnum = CommonResponseEnum.SERVICE_FALLBACK;
        if (throwable.getCause() instanceof BusinessException) {
            BusinessException businessException = (BusinessException) throwable.getCause();
            exceptionEnum = PmsDeviceEnumUtil.getExceptionEnum(businessException.getResult());
        }
        Enum<?> finalExceptionEnum = exceptionEnum;
        return new PmsPowerDistributionareaClient()
        {
            @Override
            public HttpResult<List<PowerDistributionarea>> getPowerDistributionList(PowerDistributionareaParam powerDistributionareaParam) {
                log.error("{}异常，降级处理，异常为：{}", "获取配网所有台区", throwable.toString());
                throw new BusinessException(finalExceptionEnum);
            }

        };
    }
}
