package com.xiaopeng.api.factory.order;

import com.xiaopeng.api.dto.statistics.OrderStatisticsDTO;
import com.xiaopeng.api.dto.statistics.StatisticsQueryDTO;
import com.xiaopeng.api.feignClient.order.XpOrderClient;
import com.xiaopeng.common.core.domain.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.openfeign.FallbackFactory;
import org.springframework.stereotype.Component;

import java.math.BigDecimal;
import java.util.ArrayList;

/**
 * 订单Feign客户端降级工厂
 *
 * @author mitao
 */
@Slf4j
@Component
public class XpOrderClientFallbackFactory implements FallbackFactory<XpOrderClient> {

    @Override
    public XpOrderClient create(Throwable cause) {
        log.error("订单服务调用失败: {}", cause.getMessage());
        return new XpOrderClient() {
            @Override
            public R<OrderStatisticsDTO> getOrderStatistics(StatisticsQueryDTO query) {
                log.error("获取订单统计数据失败，原因: {}", cause.getMessage());
                // 降级返回空数据
                OrderStatisticsDTO dto = new OrderStatisticsDTO();
                dto.setTotalCount(0L);
                dto.setNewCount(0L);
                dto.setTotalMoney(BigDecimal.ZERO);
                dto.setTotalIncome(BigDecimal.ZERO);
                dto.setDailyCountList(new ArrayList<>());
                return R.ok(dto);
            }
        };
    }
}