package com.zy.acs.manager.manager.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zy.acs.framework.exception.CoolException;
import com.zy.acs.manager.manager.entity.Segment;
import com.zy.acs.manager.manager.entity.Task;
import com.zy.acs.manager.manager.enums.ActionStsType;
import com.zy.acs.manager.manager.enums.SegmentStateType;
import com.zy.acs.manager.manager.enums.TaskStsType;
import com.zy.acs.manager.manager.mapper.SegmentMapper;
import com.zy.acs.manager.manager.service.*;
import com.zy.acs.framework.common.Cools;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.Comparator;
import java.util.Date;
import java.util.List;

@Slf4j
@Service("segmentService")
public class SegmentServiceImpl extends ServiceImpl<SegmentMapper, Segment> implements SegmentService {

    @Autowired
    private AgvService agvService;
    @Autowired
    private TravelService travelService;
    @Autowired
    private TaskService taskService;
    @Autowired
    private ActionService actionService;

    @Override
    public void processNext(List<Segment> segmentList) {

        segmentList.stream().max(Comparator.comparingInt(Segment::getSerial)).ifPresent(segment -> {
            Segment nextSegment = this.getNextStepOfInit(segment.getTravelId(), segment.getSerial());

            if (null != nextSegment) {

                nextSegment.setState(SegmentStateType.WAITING.toString());
                nextSegment.setUpdateTime(new Date());
                if (!this.updateById(nextSegment)) {
                    log.error("Segment [{}] failed to update ！！！", nextSegment.getGroupId() + " - " + nextSegment.getSerial());
                }

            } else {

                travelService.checkFinish(segment.getTravelId());
            }
        });
    }

    @Override
    public Segment getNextStepOfInit(Long travelId, Integer serial) {
        return this.getOne(new LambdaQueryWrapper<Segment>()
                .eq(Segment::getTravelId, travelId)
                .eq(Segment::getSerial, serial + 1)
                .eq(Segment::getState, SegmentStateType.INIT.toString())
        );
    }

    @Override
    public Segment getPreviousStepOfFinish(Long travelId, Integer serial, String memo) {
        return this.getOne(new LambdaQueryWrapper<Segment>()
                .eq(Segment::getTravelId, travelId)
                .eq(Segment::getSerial, serial - 1)
//                .eq(Segment::getState, SegmentStateType.FINISH.toString())
                .eq(Segment::getMemo, memo)
        );
    }

    @Override
    public List<Segment> getJustWaitingSeg(Long agvId) {
        if (null == agvId) {
            return null;
        }
        List<Segment> waitingSegList = this.getByAgvAndState(agvId, SegmentStateType.WAITING.toString());
        if (Cools.isEmpty(waitingSegList)) {
            return null;
        } else {
            if (waitingSegList.size() > 1) {
                log.error("{}号车辆存在多个等待中的Segment！！！", agvService.getById(agvId).getUuid());
            }
            return waitingSegList;
        }
    }

    @Override
    public List<Segment> getSamePos(List<Segment> segmentList) {
        return null;
    }

    @Override
    public List<Segment> getByAgvAndState(Long agvId, String state) {
        return this.list(new LambdaQueryWrapper<Segment>()
                .eq(Segment::getAgvId, agvId)
                .eq(Segment::getState, state)
                .orderByAsc(Segment::getSerial)
        );
    }

    @Override
    public List<String> getGroupNo(SegmentStateType state, Long agvId, String groupNo) {
        return this.baseMapper.getGroupNo(state.toString(), agvId, groupNo);
    }

    @Override
    public List<Segment> getRunningByEndCode(Long codeId) {
        if (null == codeId) {
            return new ArrayList<>();
        }
        return this.list(new LambdaQueryWrapper<Segment>()
                .eq(Segment::getEndNode, codeId)
                .in(Segment::getState, SegmentStateType.WAITING.toString(), SegmentStateType.RUNNING.toString())
        );
    }

    @Override
    @Transactional
    public Boolean cancel(Long segmentId, Long userId) {
        Date now = new Date();
        Segment segment = this.getById(segmentId);
        String groupId = segment.getGroupId();
        // update segment list
        List<Segment> segmentList = this.list(new LambdaQueryWrapper<Segment>().eq(Segment::getGroupId, groupId));
        for (Segment seg : segmentList) {
            Task task = taskService.getById(segment.getTaskId());
            if (task != null &&
                    (!task.getTaskSts().equals(TaskStsType.COMPLETE.val()) && !task.getTaskSts().equals(TaskStsType.CANCEL.val()))) {
                throw new CoolException("the task is not finish");
            }
            seg.setState(SegmentStateType.FINISH.toString());
            seg.setUpdateTime(now);
            if (!this.updateById(seg)) {
                throw new CoolException("failed to cancel segment");
            }
        }
        this.processNext(segmentList);
        // update action list
        actionService.updateStsByGroupId(groupId, ActionStsType.EXPIRED.val());
        return Boolean.TRUE;
    }

}