package com.yunhai.flowcenter.engine;

import com.yunhai.flowcenter.entity.FlwRouteLog;
import com.yunhai.flowcenter.repository.FlwRouteLogRepository;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDateTime;

/**
 * 路由留痕落库（REQUIRES_NEW，与回调 CallbackLogStore 同纪律）：判断调用是真实外部副作用，
 * 留痕不随外层事务回滚消失——挂起重跑失败（reroute 抛业务错回滚办件推进）时失败行仍保留；
 * attempt 在同一新事务里"查最大+1"再落行，避免并发双判撞号。
 */
@Service
@RequiredArgsConstructor
public class RouteLogStore {

    private final FlwRouteLogRepository routeLogRepository;

    /** 落一行留痕并提交（独立事务），返回带 attempt 的落库行 */
    @Transactional(propagation = Propagation.REQUIRES_NEW)
    public FlwRouteLog append(FlwRouteLog row) {
        row.setAttempt(routeLogRepository.maxAttempt(row.getInstanceId(), row.getNodeId()) + 1);
        row.setDecideTime(LocalDateTime.now());
        return routeLogRepository.save(row);
    }
}