package top.haijunit.train.service;

import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.MapUtils;
import org.springframework.stereotype.Service;
import top.haijunit.train.domain.constant.SwitchStateEnum;
import top.haijunit.train.domain.entity.SwitchEntity;
import top.haijunit.train.domain.repository.SwitchRepository;

import java.time.LocalTime;
import java.util.Date;
import java.util.Map;

/**
 * @author zhanghaijun
 * @date 2023/11/29 06:23
 * @description 道岔处理
 */
@Slf4j
@Service
@RequiredArgsConstructor
public class SwitchService {

    private final SwitchRepository switchRepository;

    /**
     * 改变道岔的状态
     *
     * @param switchStateMap 改变后的的道岔状态
     * @return 是否发生了变化，变化后需要等待时间
     */
    public boolean changeSwitchState(Map<Long, SwitchStateEnum> switchStateMap) {
        boolean isChanged = false;
        if (MapUtils.isEmpty(switchStateMap)) {
            return isChanged;
        }
        for (Map.Entry<Long, SwitchStateEnum> entry : switchStateMap.entrySet()) {
            SwitchEntity switchEntity = switchRepository.findById(entry.getKey()).orElse(null);
            if (switchEntity == null) {
                log.error("-----道岔不存在, id: {}", entry.getKey());
                continue;
            }
            if (switchEntity.getSwitchState() != entry.getValue()) {
                switchEntity.setSwitchState(entry.getValue());
                switchEntity.setUpdateStateTime(new Date());
                switchRepository.save(switchEntity);
                isChanged = true;
            }
        }
        return isChanged;
    }

}