package com.ycl.platform.service.impl;

import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
import com.baomidou.mybatisplus.extension.conditions.update.LambdaUpdateChainWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ycl.exception.ServiceException;
import com.ycl.platform.domain.entity.*;
import com.ycl.platform.domain.form.*;
import com.ycl.platform.domain.query.DistributeWorkOrderQuery;
import com.ycl.platform.domain.query.WorkOrderQuery;
import com.ycl.platform.domain.vo.DistributeWorkOrderVO;
import com.ycl.platform.domain.vo.WorkOrderVO;
import com.ycl.platform.domain.vo.WorkOrderYwConditionRecordVO;
import com.ycl.platform.mapper.*;
import com.ycl.platform.service.NotifyService;
import com.ycl.platform.service.WorkOrderAuditingRecordService;
import com.ycl.platform.service.WorkOrderService;
import com.ycl.system.Result;
import com.ycl.system.model.LoginUser;
import com.ycl.system.page.PageUtil;
import com.ycl.utils.DateUtils;
import com.ycl.utils.SecurityUtils;
import com.ycl.utils.redis.RedisCache;
import com.ycl.utils.uuid.IdUtils;
import constant.PointConfigConstants;
import enumeration.general.*;
import lombok.RequiredArgsConstructor;
import org.apache.commons.lang3.ArrayUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;

import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

/**
 * 工单 服务实现类
 *
 * @author xp
 * @since 2024-03-05
 */
@Service
@RequiredArgsConstructor
public class WorkOrderServiceImpl extends ServiceImpl<WorkOrderMapper, WorkOrder> implements WorkOrderService {

    private final WorkOrderMapper workOrderMapper;
    private final YwUnitMapper ywUnitMapper;
    private final YwPeopleMapper ywPeopleMapper;
    private final WorkOrderAuditingRecordMapper workOrderAuditingRecordMapper;
    private final WorkOrderAuditingRecordService workOrderAuditingRecordService;
    private final WorkOrderYwConditionRecordMapper workOrderYwConditionRecordMapper;
    private final NotifyService notifyService;
    private final WorkOrderDistributeRecordMapper workOrderDistributeRecordMapper;

    private final String DISTRIBUTE_LOCK_KEY = "distributeLock";
    private final static String IMPORTANT = "important";

    @Autowired
    private RedisCache redisCache;

    /**
     * 添加
     * @param form
     * @return
     */
    @Override
    public Result add(WorkOrderForm form) {
        WorkOrder entity = WorkOrderForm.getEntityByForm(form, null);
        entity.setWorkOrderNo(IdUtils.timeAddRandomNO(5));
        entity.setCreateTime(DateUtils.getNowDate());
        entity.setStatus(WorkOrderStatusEnum.WAIT_DISTRIBUTE);
        if(baseMapper.insert(entity) > 0) {
            return Result.ok("添加成功");
        }
        return Result.error("添加失败");
    }

    /**
     * 修改
     * @param form
     * @return
     */
    @Override
    public Result update(WorkOrderForm form) {

        WorkOrder entity = baseMapper.selectById(form.getId());

        // 为空抛IllegalArgumentException，做全局异常处理
        Assert.notNull(entity, "记录不存在");
        BeanUtils.copyProperties(form, entity);
        if (baseMapper.updateById(entity) > 0) {
            return Result.ok("修改成功");
        }
        return Result.error("修改失败");
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Result auditing(WorkOrderAuditingForm form) {
        WorkOrder workOrder = baseMapper.selectById(form.getId());
        // 工单状态
        workOrder.setStatus(form.getAuditingResult());
        baseMapper.updateById(workOrder);
        // 添加一条审核记录
        WorkOrderAuditingRecord workOrderAuditingRecord = new WorkOrderAuditingRecord();
        workOrderAuditingRecord.setWorkOrderId(workOrder.getId());
        workOrderAuditingRecord.setAuditingUser(SecurityUtils.getLoginUser().getUserId().intValue());
        workOrderAuditingRecord.setResult(form.getAuditingResult().getDesc());
        workOrderAuditingRecord.setRemark(form.getAuditingRemark());
        workOrderAuditingRecordMapper.insert(workOrderAuditingRecord);
        // 添加新通知
        Notify notify = Notify.genEntityByUnit(NotifyTypeEnum.WORK_ORDER,
                form.getAuditingResult().getDesc(),
                workOrder.getUnitId(),
                UrgentLevelEnum.WARNING,
                workOrder.getWorkOrderNo());
        notifyService.save(notify);
        return Result.ok("操作成功");
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Result batchAuditing(WorkOrderBatchAuditingForm form) {
        // 根据故障类型获取列表
        List<WorkOrder> list = new LambdaQueryChainWrapper<>(baseMapper)
                .in(WorkOrder::getStatus, WorkOrderStatusEnum.YW_HANDLE.getValue())
                .in(WorkOrder::getErrorType, form.getErrorTypes())
                .select(WorkOrder::getId, WorkOrder::getUnitId, WorkOrder::getWorkOrderNo)
                .list();
        if (list.isEmpty()) {
            return Result.error("没有工单可以审核");
        }
        List<Integer> ids = list.stream().map(WorkOrder::getId).collect(Collectors.toList());
        // 工单状态
        LambdaUpdateWrapper<WorkOrder> lambdaUpdateWrapper = new LambdaUpdateWrapper<>();
        lambdaUpdateWrapper.in(WorkOrder::getId, ids);
        lambdaUpdateWrapper.set(WorkOrder::getStatus, form.getAuditingResult());
        baseMapper.update(lambdaUpdateWrapper);
        // 添加多条审核记录
        List<WorkOrderAuditingRecord> workOrderAuditingRecords = new ArrayList<>();
        for (Integer id : ids) {
            WorkOrderAuditingRecord workOrderAuditingRecord = new WorkOrderAuditingRecord();
            workOrderAuditingRecord.setWorkOrderId(id);
            workOrderAuditingRecord.setAuditingUser(SecurityUtils.getLoginUser().getUserId().intValue());
            workOrderAuditingRecord.setResult(form.getAuditingResult().getDesc());
            workOrderAuditingRecord.setRemark(form.getAuditingRemark());
            workOrderAuditingRecords.add(workOrderAuditingRecord);
        }
        workOrderAuditingRecordService.saveBatch(workOrderAuditingRecords);
        // 添加新通知
        List<Notify> notifies = new ArrayList<>();
        for (WorkOrder workOrder : list) {
            Notify notify = Notify.genEntityByUnit(NotifyTypeEnum.WORK_ORDER,
                    form.getAuditingResult().getDesc(),
                    workOrder.getUnitId(),
                    UrgentLevelEnum.WARNING,
                    workOrder.getWorkOrderNo());
            notifies.add(notify);
        }
        notifyService.saveBatch(notifies);
        return Result.ok("操作成功");
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Result ywCondition(WorkOrderYWConditionForm form) {
        WorkOrder workOrder = baseMapper.selectById(form.getId());
        if (Objects.isNull(workOrder)) {
            throw new ServiceException("工单不存在");
        }
        // 工单状态
        workOrder.setStatus(WorkOrderStatusEnum.YW_HANDLE);
        workOrder.setYwHandleTime(LocalDateTime.now());
        baseMapper.updateById(workOrder);
        // 添加一条运维情况记录
        WorkOrderYwConditionRecord workOrderYwConditionRecord = new WorkOrderYwConditionRecord();
        workOrderYwConditionRecord.setWorkOrderId(workOrder.getId());
        workOrderYwConditionRecord.setCommitUser(SecurityUtils.getLoginUser().getUserId().intValue());
        workOrderYwConditionRecord.setYwCondition(form.getYwCondition());
        workOrderYwConditionRecord.setYwProofMaterials(form.getYwProofMaterials());
        workOrderYwConditionRecordMapper.insert(workOrderYwConditionRecord);
        return Result.ok("操作成功");
    }

    @Override
    public Result selectYwConditionByYwId(Integer id) {
        List<WorkOrderYwConditionRecordVO> ywConditionList = workOrderYwConditionRecordMapper.selectYwConditionByYwId(id);
        return Result.ok().data(ywConditionList);
    }

    @Override
    public Result selectYwAuditingListByYwId(String id) {
        return Result.ok().data(
                new LambdaQueryChainWrapper<>(workOrderAuditingRecordMapper)
                        .eq(WorkOrderAuditingRecord::getWorkOrderId, id)
                        .orderByAsc(WorkOrderAuditingRecord::getCreateTime)
                        .list());
    }

    @Override
    public Result ywResult(WorkOrderYWResultForm form) {
        return null;
    }

    @Override
    public Result checkResult(WorkOrderCheckResultForm form) {
        return null;
    }

    /**
     * 批量删除
     * @param ids
     * @return
     */
    @Override
    public Result remove(List<String> ids) {
        if(baseMapper.deleteBatchIds(ids) > 0) {
            return Result.ok("删除成功");
        }
        return Result.error("删除失败");
    }

    /**
     * id删除
     * @param id
     * @return
     */
    @Override
    public Result removeById(String id) {
        if(baseMapper.deleteById(id) > 0) {
            return Result.ok("删除成功");
        }
        return Result.error("删除失败");
    }

    /**
     * 分页查询
     * @param query
     * @return
     */
    @Override
    public Result page(WorkOrderQuery query) {
        IPage<WorkOrderVO> page = PageUtil.getPage(query, WorkOrderVO.class);
        baseMapper.page(page, query);
        return Result.ok().data(page.getRecords()).total(page.getTotal());
    }

    @Override
    public Result distributePage(DistributeWorkOrderQuery query) {
        IPage<WorkOrderVO> page = PageUtil.getPage(query, WorkOrderVO.class);
        baseMapper.distributePage(page, query);
        page.getRecords().stream().forEach(workOrder -> {
            if (StringUtils.hasText(workOrder.getPointTag()) && workOrder.getPointTag().contains(IMPORTANT)) {
                workOrder.setImportant(Boolean.TRUE);
            }
        });
        return Result.ok().data(page).total(page.getTotal());
    }

    @Override
    public Result distributeFast(DistributeWorkOrderVO data) {
        // 获取当前时间
        LocalDateTime now = LocalDateTime.now(ZoneId.systemDefault());
        switch (data.getFastWay()) {
            case LAST_HALF_HOUR:
                data.setStart(now.minusMinutes(30));
                data.setEnd(now);
                break;
            case LAST_HOUR:
                data.setStart(now.minusHours(1));
                data.setEnd(now);
                break;
            case LAST_TWO_HOUR:
               data.setStart(now.minusHours(2));
               data.setEnd(now);
               break;
            case LAST_DAY:
                data.setStart(now.minusDays(1));
                data.setEnd(now);
                break;
           }

        // 查询符合条件的工单
        List<Integer> ids = new LambdaQueryChainWrapper<>(baseMapper)
                .eq(WorkOrder::getStatus, WorkOrderStatusEnum.WAIT_DISTRIBUTE)
                .eq(Objects.nonNull(data.getUnitId()), WorkOrder::getUnitId, data.getUnitId())
                .eq(WorkOrder::getErrorType, data.getErrorType())
                .between(WorkOrder::getCreateTime, data.getStart(), data.getEnd())
                .orderByDesc(WorkOrder::getCreateTime)
                .last("limit " + data.getFastNumLimit())
                .list()
                .stream()
                .map(WorkOrder::getId)
                .toList();

        if (ids.isEmpty()) {
            return Result.error("没有符合条件的工单");
        }
        if (!getDistributeLock()) {
            return Result.error("此刻有人下发中，为避免冲突，请稍后重试");
        }
        try {
            new LambdaUpdateChainWrapper<>(baseMapper)
                    .set(WorkOrder::getStatus, WorkOrderStatusEnum.DISTRIBUTED)
                    .in(WorkOrder::getId, ids)
                    .update();
            addDistributeRecord(ids, WorkOrderDistributeWayEnum.FAST_DISTRIBUTE);
            return Result.ok("成功下发" + ids.size() + "条工单");
        } catch (Exception e) {
            return Result.error("操作失败");
        } finally {
            distributeUnLock();
        }
    }

    @Override
    public Result selectedIdsDistribute(DistributeWorkOrderQuery query) {
        WorkOrderDistributeWayEnum distributeWayEnum = WorkOrderDistributeWayEnum.SELECTED_DISTRIBUTE;
        if (!getDistributeLock()) {
            return Result.error("此刻有人下发中，为避免冲突，请稍后重试");
        }
        try {
            if (query.getIds().isEmpty()) {
                query.setIds(new LambdaQueryChainWrapper<>(baseMapper)
                        .eq(WorkOrder::getStatus, WorkOrderStatusEnum.WAIT_DISTRIBUTE)
                        .eq(Objects.nonNull(query.getUnitId()), WorkOrder::getUnitId, query.getUnitId())
                        .select(WorkOrder::getId)
                        .list()
                        .stream()
                        .map(WorkOrder::getId)
                        .collect(Collectors.toList()));
                distributeWayEnum = WorkOrderDistributeWayEnum.ALL_DISTRIBUTE;
            }
            if (query.getIds().isEmpty()) {
                return Result.error("没有工单待下发");
            }
            new LambdaUpdateChainWrapper<>(baseMapper)
                    .set(WorkOrder::getStatus, WorkOrderStatusEnum.DISTRIBUTED)
                    .in(WorkOrder::getId, query.getIds())
                    .update();
            addDistributeRecord(query.getIds(), distributeWayEnum);
            return Result.ok("成功下发" + query.getIds().size() + "条工单");
        } catch (Exception e) {
            return Result.error("操作失败");
        } finally {
            distributeUnLock();
        }
    }

    /**
     * 申请工单下发锁
     * @return 工单下发锁申请结果
     */
    public synchronized Boolean getDistributeLock() {
        if (Objects.isNull(redisCache.getCacheObject(DISTRIBUTE_LOCK_KEY))) {
            redisCache.setCacheObject(DISTRIBUTE_LOCK_KEY, "1");
            return true;
        } else {
            return false;
        }
    }

    /**
     * 工单下发锁释放
     */
    public synchronized void distributeUnLock() {
        redisCache.deleteObject(DISTRIBUTE_LOCK_KEY);
    }

    /**
     * 添加工单下发记录
     * @param ids 工单id
     */
    private void addDistributeRecord(List<Integer> ids, WorkOrderDistributeWayEnum distributeWay) {
        LoginUser loginUser = SecurityUtils.getLoginUser();
        workOrderDistributeRecordMapper.insertBatch(
                ids.stream()
                        .map(id -> new WorkOrderDistributeRecord(id, loginUser.getUserId(), distributeWay))
                        .toList()
        );
    }

    /**
     * 根据id查找
     * @param id
     * @return
     */
    @Override
    public Result detail(String id) {

        WorkOrder entity = baseMapper.selectById(id);
        Assert.notNull(entity, "记录不存在");
        WorkOrderVO vo = WorkOrderVO.getVoByEntity(entity, null);
        return Result.ok().data(vo);
    }

    /**
     * 列表
     * @return
     */
    @Override
    public Result all() {
        List<WorkOrder> entities = baseMapper.selectList(null);
        List<WorkOrderVO> vos = entities.stream()
                .map(
                        entity -> WorkOrderVO.getVoByEntity(entity, null)
                )
                .collect(Collectors.toList());
        return Result.ok().data(vos);
    }
}